Gastroenterology (Quesmed) Flashcards

1
Q

What is Achalasia?

A

It is a condition of unknown cause which causes Failure of the Lower Oesophageal Sphincter

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2
Q

What are the 5 signs of Achalasia?

Remember 3 of them are LINKED directly

A

Dysphagia to both SOLIDS and LIQUIDS (which gradually increases over Months and Years)

Regurgitation of undigested foods

Aspiration

RETROSTERNAL Chest Pain/ Heartburn (which usually doesn’t respond to PPIs)

Weight Loss (often mild)

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3
Q

What investigations should be ordered in Achalasia?

A

Endoscopy (Dilated Oesophagus containing residual material)

GOLD STANDARD- Oesophageal Manometry (High Pressure and Incomplete Lower Oesophageal Sphincter Relaxation)

Barium Swallow (Bird’s Beak Appearance)

Chest Xray- Widened Mediastinum and Fluid Levels

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4
Q

What is the management of Achalasia?

A

FIRST LINE OPTION- BALLOON DILATATION

Surgery- Oesophageal Dilatation and Surgical Cleavage of the Lower Sphincter so that food can pass through (called !!!Heller’s Myomotomy)

!!!!Medical- Botox (if this fails or if they are not suitable for surgery, Calcium Channel Blockers/ Nitrates)

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5
Q

What are Porphyrias?

What are the signs and the management of Acute Intermittent Porphyria (Autosomal Dominant) (Porphyria caused by Triggers)?

NO DIARRHOEA, but may be constipation

A

Defects in Haem Synthesis due to alterations in Enzyme structure and function. This leads to the accumulation of PORPHYRINS

Signs-
1) Abdominal Pain and Vomiting
2) Motor Neuropathy
3) Hypertension and Tachycardia
4) Depression AND CONFUSIONNNNNNN
!!!!!5) ALSO Urine turns RED

Management
- Avoid the Triggers
- IV HAEM otherwise IV glucose

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6
Q

What are the 3 types of Acute Porphyrias?

A

Acute Intermittent Porphyria (Autosomal Dominant)

Variegate Porphyria (Autosomal Dominant)- suspect if SKIN is affected

ALA Deficiency (Autosomal RecessivE)

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7
Q

What are the medications that trigger Acute Porphyrias?

A

Antibiotics (Rifampicin, Isoniazid, Nitrofurantoin)

Anaesthetic Agents (Ketamide and Etomidate)

Sulfonamides

Barbiturates

Antifungal Agents

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8
Q

What are the signs of Acute Porphyria?

Suspect if Abdo pain, Confusion and recent Antibiotics/ Anaesthetics etc.

Remember CONFUSION

A

Generic Abdominal Symptoms

  • Abdominal Pain
  • Nausea
  • Confusion
  • Hypertension
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9
Q

What is needed for the diagnosis of Acute Porphyria?

What must you be careful about with the urine sample?

A

Measure Urinary Porphobilinogen levels which is a product of Haem Metabolism

Urine Samples needed to be protected from sunlight to prevent breakdown of PBG

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10
Q

What is the management of Acute Porphyria?

A

Largely supportive

IV Haem Arginate can be given to replenish Haem levels

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11
Q

What is Alpha 1 Antitrypsin Deficiency?

WHAT is the INHERITANCE PATTERN?

What Lobes of the lungs are affected in Alpha 1 vs COPD

What is the management?

A

It is an INHERITED AUTOSOMAL RECESSIVE condition that affects the Lungs, causing Emphysema- so this is a CAUSE of COPD in YOUNG PEOPLE/ NON SMOKERS

LOWER LOBES= Alpha 1, UPPER LOBES= COPD

It also affects the Liver which causes Cirrhosis and Hepatocellular Carcinoma

Without Alpha-1 Antitryptase, there is less defence against Neutrophil Elastase which destroys the Alveoli

This process is exacerbated in Smokers

Management-
1) Physiotherapy, Bronchodilators and Alpha 1 Antitrypsin
2) LUNG REDUCTION SURGERY

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12
Q

What is the presentation of Alpha 1 Antitrypsin Deficiency?

A

COPD presenting in a 30-40 year old

Neonatal JAUNDICE at Birth

Deranged LFTs in an adult with no other identifiable cause

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13
Q

What investigations should be ordered for Alpha 1 Antitrypsin Deficiency?

A

Test for Alpha 1 Antitrypsin Levels

Genotyping

Liver Biopsy (look for Periodic-acid-Schiff (PAS) positive globules)

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14
Q

What is the management of Alpha 1 Antitrypsin Deficiency?

A

Stop Smoking

Intravenous A1AT pooled from human donors is expensive and NOT widely used

If Decompensation, Liver Transplant may be needed

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15
Q

What is seen in patients who have been vomiting?

A

They appear dehydrated and unwell

There is Metabolic Hypochloraemic Alkalosis on a blood gas due to the loss of Stomach Acid when vomiting

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16
Q

What are the 4 types of Anti-Emetics?

A

H1 Receptor Antagonist
- Cyclizine

D2 Receptor Antagonist
- Domperidone, Metoclopramide (The ones with M at the start of their name) and Prochlorperazine

5HT3 Receptor Antagonist
- Ondansetron

Anti-Muscarinic
- Hyoscine hydrobromide

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17
Q

What is Ascites?

A

It is the accumulation of fluid within the Peritoneal Cavity

It may be seen in patients with Cirrhosis- though the mechanism is complex and not fully understood

It is thought to involve PORTAL HYPERTENSION causing an increased Hydrostatic Pressure which leads to the Transudation of Fluid

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18
Q

What is the Serum Ascites Albumin Gradient (SAAG)?

A

It can help determine the cause of Ascites

Subtract the Albumin concentration of the Ascites Fluid from the Serum Albumin Concentration (S-A)

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19
Q

What are the causes of a high (>1.1g/dL) SAAG?

2 organ failures plus 2 other conditions related to those organs plus 1 extra

A

Cause is Raised Portal Pressure

  • Cirrhosis
  • Heart Failure
  • Budd Chiari Syndrome
  • Constrictive Pericarditis
  • Hepatic Failure

Increased Hydrostatic Pressure forces water into the Peritoneal Cavity whilst Albumin remains in the vessels

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20
Q

What are the causes of a low (<1.1g/dL) SAAG?

A

5 causes

  • Cancer of the Peritoneum
  • Tuberculosis and other infections
  • Pancreatitis
  • Hypoalbuminaemia- like Nephrotic Syndrome or Kwashiokor Malnutrition
  • Bowel Obstruction
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21
Q

What is the management of Ascites?

SFSF Drain

A
  • Address the underlying cause
  • Salt-restricted diet
  • Fluid Restriction (not recommended if Uncomplicated Ascites)
  • Spironolactone
  • Adjunctive Diuretic therapy like Furosemide may be needed if Spironolactone is insufficient
  • Patients with Ascites refractory to Medical Management may require Regular Therapeutic Paracentesis, where the Fluid is drained from the abdomen
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22
Q

What is the main contraindication to Paracentesis (Ascites management)?

A

Signs of Disseminated Intravascular Coagulation

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23
Q

What are the signs of Autoimmune Hepatitis?

!!!!!THERE is AMENORRHOEA and FEVER AS WELL BTW

Remember the Arthralgia

A

Signs of OTHER AUTOIMMUNE CONDITIONS

!!!!!!AMENORRHOEA AND FEVER
Jaundice

Fatigue
Loss of Appetite

Hepatomegaly
Splenomegaly
Abdominal pain

Pruritus and Spider Naevi

Arthralgia in their Small Joints as well

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24
Q

What are the LFTs in Autoimmune Hepatitis?

What is the CRP like in Autoimmune Hepatitis?

What else is seen in Autoimmune Hepatitis in the blood that is raised?

A

Hepatic Pattern of Disease- Raised ALT and Bilirubin and Normal/ Mildly Raised ALP (by 10-20)- Significantly raised in Cholangitis

CRP is usually NOT raised

They may have IgG Predominant Hypergammaglobuminaemia

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25
What are the 3 types of Autoimmune Hepatitis? All have raised IgG levels
Type 1- Most common type- (Adults and Children) - Anti Smooth Muscle Antibodies (80%) and Antinuclear Antibodies may also be raised (10%) Type 2- Less common but often more severe (Children) - Anti Liver/ Kidney Microsomal Antibodies Type 1 Type 3- Less common (Adults) - Anti Soluble Liver-Kidney Antigen Type 2 and 3 would be NEGATIVE for Anti Smooth Muscle Antibodies and Antinuclear Antibodies
26
What is the management of Autoimmune Hepatitis?
Depends on severity of symptoms and disease - Prednisolone for induction and Azathioprine for maintenance - Second Line- Other immunosuppressants - Liver Transplant
27
What drugs can cause Hepatitis?
Methyldopa Nitrofurantoin Diclofenac Phenytoin
28
What is Barret's Oesophagus?
Chronic Acid Exposure (usually through GORD) changes distal oesophagus from Squamous Epithelium to Metaplastic Columnar Epithelium It has a risk of progressing to Adenocarcinoma
29
What is the management of Barrett's Oesophagus?
Identified through ENDOSCOPY - If Low Grade Dysplasia- repeat in 6 months. If found in follow up and confirmed on at least 2 biopsies, offer them Endoscopic Ablation therapy- preferably with Radiofrequency Ablation. If not, check up on them every 6 months - If High Grade Dysplasia or early Adenocarcinoma, Endoscopic Resection of Abnormal Areas- Radiofrequency Ablation, Photodynamic Ablation or Laser. - If there is any grade of dysplasia then ablation!!!!!! If they are fit for surgery, OESOPHAGECTOMY -
30
What is Cholera? In addition to dehydration, what 2 symptoms does it cause?
It is an Acute Secretory Diarrhoea caused by an infection with Vibrio Cholera of the O1 and O139 subgroup. It is ENDEMIC in many countries It causes RICE WATER DIARRHOEA and HYPOGLYCAEMIA
31
What are the signs of Cholera? Tummy Ache and Loss of Fluids Through Diarrhoea and Vomiting
Watery Diarrhoea that begins suddenly Abdominal Cramps (just like Clostridium Difficile) Nausea and Vomiting Excessive Thirst and Oliguria (cos of all the water they're losing through the diarrhoea) Dry Skin and Mouth Drowsiness and Irritability
32
What is the management of Cholera? What are the 3 antibiotics that can be given?
Aggressive fluid Replacement- Effective Therapy that can decrease mortality from over 50% to less than 0.2% Antibiotics (Doxycycline or Co-trimoxazole or Ciprofloxacin)
33
What are the causes of Chronic Pancreatitis?
- 80% of patients- Chronic Alcohol Excess - Less Common Causes- Genetic (Cystic Fibrosis), Obstructive Causes (Pancreatic Cancer) and Metabolic Causes (Raised Triacylglycerides)
34
What are the signs of Chronic Pancreatitis?
Epigastric Pain- Worse after eating Fatty Food and Relieved by Sitting Forward Exocrine Dysfunction- Malabsorption and Steatorrhoea (occurs after YEARS as well) Endocrine Dysfunction- Type 1 Diabetes Mellitus- Polyuria and Polydipsia (occurs after 20 YEARS of symptom onset) Check for signs of Chronic Liver Disease
35
What Investigations should be ordered in Chronic Pancreatitis? Is it worth checking Amylase and Lipase in Chronic Pancreatitis?
Structural Investigations - CT- Pancreatic Calcification (this is preferred) - Abdominal Xray- Calcification Functional Investigations - Exocrine Dysfunction- FAECAL ELASTASE - Endocrine Dysfunction- FASTING GLUCOSE/ OGTT - Serum Amylase and Lipase are NOT TYPICALLY RAISED- unlike Acute
36
What is the management of Chronic Pancreatitis What is the general life advice, 3 medication options and then if all else fails- 2 things that can be done?
Conservative- Ethanol Abstinence and a Good Diet Medical- - Pain control with !!!!!!!Analgesia - Manage the Endocrine Dysfunction with Insulin - Manage the Exocrine Dysfunction with Pancreatic Enzyme Replacement If the above management options fail- !!!!!!!Coeliac Plexus Block and Pancreatectomy
37
What are the complications of Chronic Pancreatitis?
May be Local- Pseudocysts (observe for 12 weeks first then surgery) or Pancreatic Cancer May be Systemic- Endocrine (Diabetes) and Exocrine Dysfunction (Malabsorption and Steatorrhoea)
38
What is Clostridium Difficile (D for Diarrhoea)? Which 2 drugs increase the risk of it occurring? What are the signs? What is used to diagnose it? What is the management?
It is a gram-positive bacteria that causes Pseudomembranous Colitis It is seen in people who have been on a course of BROAD SPECTRUM ANTIBIOTICS (usually Clindamycin) and PROTEIN PUMP INHIBITORS The microorganism produces Toxins that cause Inflammation, Diarrhoea and the development of a Pseudomembrane in the Large Bowel Signs- - Abdominal Pain, Diarrhoea, RAISED WCC (which is used to determine the severity) Diagnosis- C.Diff TOXIN- not the antigen as the antigen indicates a PAST INFECTION as well Management - Oral Vancomycin - Then Oral Fidaxomicin (Fedex) - Then Oral Vancomycin and IV Metronidazole (use this ASAP if Hypotension/ Toxic Megacolon)
39
What are the Risk Factors for Clostridium Difficile?
Broad Spectrum Antibiotics (Clindamycin, Ciprofloxacin, Cephalosporins, Penicillins) Have been in healthcare settings (hospital or care home) for a long time >65 years old Weak Immune System Other Conditions- IBD, Cancer or Kidney Disease Are on a PPI
40
What are the signs of Clostridium Difficile? Suspect if on Broad Spectrum Antibiotics/ Long healthcare stay (hospital or care home) Remember CONFUSION and signs of DEHYDRATION
May be asymptomatic but usually- - Watery diarrhoea (may be bloody) - Painful Abdominal Cramps - Nausea - Dehydration- Tachycardia, Oliguria, Dry mucous membranes - FEVER - Loss of Appetite and Weight Loss - Confusion
41
What is the management of Clostridium Difficile? What is the extra management that can help and what 2 things should the patient avoid? What 3 things define a LIFE-THREATENING PRESENTATION?
PO Vancomycin (add IV Metronidazole if Severe- hypotension or toxic megacolon or ILEUS) If Vancomycin is ineffective- Fidaxomicin If Recurrent Infections= FAECAL TRANSPLANT can help Avoid Anti-diarrhoeal Agents and minimise Narcotic Use as the Anti-peristaltic effects and Toxin entrapment can predispose to Toxic Megacolon Replacing Fluid and Electrolyte losses is indicated as needed
42
What are the Severe Complications of Clostridium Difficile?
Massive Colonic Inflammation characterised by a Pseudomembrane of Immune Cells (Raised Yellow Plaques), Mucus and Necrotic Tissue. Pseudomembranous Colitis represents and advanced stage of disease is diagnostic of CDI Colonic Distension- Toxic Megacolon Systemic Toxicity and manifestations of the Systemic Inflammatory Response Syndrome (Leucocytes>35, Lactate>5, Hypotension requiring Vasopressor Therapy, Acute Renal Failure and Respiratory Distress)
43
What are the Strong and Weak Risk factors for Colorectal Cancer?
Strong - Age - Alcohol - Tobacco - Obesity - Processed meat - IBD - Radiation Exposure Weak - Lack of Dietary Fibre - Limited Physical Activity - Asbestos Exposure - Red Meat
44
What is the TNM staging of Colorectal cancer?
Tumour, Node, Metastasis T- - Tis (in situ) - T1- extends through mucosa into submucosa - T2- extends through submucosa into muscularis - T3- extends through muscularis into subserosa - T4- extends into Neighbouring Organs or Tissues N- - N0- No regional lymph node involvement - N1- Metastasis to 1-3 regional lymph nodes - N2- Metastasis to 4 or more regional lymph nodes M- - M0- No Distant Metastasis - M1- Distant Metastasis
45
What are the current NHS Screening programmes for Colorectal Cancer?
Faecal Immunochemical Test (FIT) every 2 years for men and women aged 60-74. If positive, patients are referred for Colonoscopy
46
What would warrant the 2 week wait referral for Colorectal Cancer? You can FIT test even if they do not meet the criteria but are close to doing so btw!! Generally- unexplained rectal bleeding, unexplained mass
1) >40 years old with Unexplained Weight Loss AND Abdominal Pain 2) >50 years old with Unexplained Rectal Bleeding 3) > 60 with either Iron Deficiency Anaemia or Changes to Bowel Habit 4) Faecal Occult Blood Testing 5) Rectal or Abdominal Mass 6) <50 with Rectal Bleeding AND Abdominal Pain, Change in Bowel Habit, Weight Loss, Iron Deficiency Anaemia
47
What investigations should be ordered if Colorectal Cancer is suspected?
First Step= Colonoscopy If it can not be performed, CT Colonoscopy is a suitable option but it does not allow for biopsy AFTER Histological Diagnosis- CTAP should be performed to STAGE the disease so an appropriate intervention can be made In Rectal Disease, Pelvic MRI or Endorectal US are preferred over CT scan Carcinoembryonic Antigen (CEA) is NOT diagnostic but can be used to monitor therapeutic response to interventions
48
What is the management of Colorectal Cancer?
Colon Cancer- - Stage 1-3 (no metastasis)= Surgical Resection and Post-operative Chemotherapy (If stage 3 (lymph node involvement)). Add Preoperative Chemotherapy if Stage 4 (Metastasis) Rectal Cancer- - Anterior Resection if >8cm from Anal Canal. Abdomino-perineal Resection if <8cm from the Anal Canal Resections- - Caecal, Ascending or Proximal Transverse Colon- Left hemicolonectomy - Distal Transverse, Descending- Right hemicolonectomy - Rectum- Anterior Resection - Anal Verge- Abdomino-perineal Excision of the Rectum
49
What are 3 types of genetic Colorectal Cancer and their symptoms? All of them are Autosomal Dominant
Hereditary Non-Polyposis Colorectal Cancer/ Lynch Syndrome (MOST COMMON) - Autosomal Dominant - 80% chance of getting Colorectal Cancer by their 30s - Endoscopic Surveillance Familial-Adenomatous Polyposis - Autosomal Dominant - Adenomatous Polyps in their Teens and they are GUARANTEED to get Colorectal Cancer unless that have Proctocolectomy Peutz-Jeghers Syndrome - Autosomal Dominant - *Mucocutaneous Pigmentation* (pigmented spots on the skin or the mouth) and Hamartomatous Polyps in their Teens - The risk of Neoplastic Transformation of their Hamartomatous Polyps is low but they need Endoscopic Surveillance anyway
50
What are the Bristol Stool Classifications?
1- Nuts 2- Lumpy Sausage 3- Cracked Sausage 4- Smooth Sausage 5- Blobs with Clear cut edges 6- Mushy Fluffy pieces with Ragged Edges 7- Watery (no solid pieces) Constipation is Type 1 or 2 Diarrhoea is Type 6 or 7 Lacking Fibre= Type 5
51
What drugs can cause Constipation? COAA
Calcium Channel Blockers Opiates Some Antipsychotics Anticholinergics (like Amitriptylline)
52
What is the age of onset for Crohn's?
15-40 years old and 60-80 years old Usually in Caucasians
53
What are the signs of Crohn's Disease?
GI Symptoms- Crampy Abdominal Pain and Diarrhoea Systemic Symptoms- Weight Loss and !!!!!!!!FEVER - Generally may be Cachectic and Pale due to Anaemia - There may be CLUBBING - Aphthous Ulcers in the Mouth - !!!!!!!Abdominal/ Right Lower Quadrant Tenderness and a RIGHT ILIAC FOSSA MASS - PR Exam for Perianal Skin Tags, Fistulae or Perianal Abscess Dermatological manifestations- 1) Erythema Nodosum (usually on shins) 2) Pyoderma Gangrenosum (well defined ulcer with Purple Overhanging Edge) Ocular Manifestations- 1) Anterior Uveitis (Painful red eye with blurred vision and photophobia) 2) Episcleritis (Painless red eye) MSK Manifestations- 1) Arthritis (ASYMMETRICAL and non-deforming) 2) Sacro-iliitis (similar to Ankylosing Spondylitis) 3) Osteoporosis Hepatobiliary Manifestations- 1) Gallstones (more common in Crohn's than in Ulcerative Colitis) Haematological and Renal Manifestations- 1) Amyloidosis and Renal Stones (more common in Crohn's than in Ulcerative Colitis)
54
What investigations should be ordered in Crohn's? What will the blood tests and imaging show? Remember Fistulae and Proximal Bowel Dilatation What is the definitive diagnosis?
Blood Tests- 1) HIGH CRP and ESR and WCC (always raised even in flare up) 2) Thrombocytopaenia 3) Low Albumin 4) Anaemia Stool Culture is necessary to exclude infection Faecal Calprotectin (an antigen produced by Neutrophils) will be RAISED (helps distinguish IBD from IBS) COLONOSCOPY with Imaging is needed for Diagnosis EXAMINING SMALL BOWEL is DEFINITIVE Colonoscopy may show 1) Deep Ulcers 2) Skip Lesions 3) Fistulae 4) Proximal Bowel Dilatation 5) STRING of KANTOUR 6) Rose Thorn Ulcers 7) Non-Caseating Granulomas 8) Cobblestone Mucosa Histology may show 1) Goblet Cells 2) Granulomas
55
What are the Colonoscopy findings of Crohn's?
- Intermittent Inflammation- Skip Lesions - Cobblestone Mucosa- due to Ulcerations and Mural Oedema - Rose-thorn Ulcers (due to transmural inflammation) +/- Fistula or Abscesses - Non-caseating Granulomas
56
What is the Medical Management of Crohn's?
Induce Remission 1) Glucocorticoid Monotherapy (Prednisolone or IV Hydrocortisone) 1a) Enteral Nutrition may be considered as an alternative in children (as steroids suppress growth) 2) Azathioprine or Mercaptopurine may be added if there are 2 or more Exacerbations within a year or if Glucocorticoids can not be tapered. ASSESS TPMT before giving Azathioprine or Mercaptopurine 2a) If TPMT deficient- Methotrexate can be given next 3) If severe- Infliximab or Adalimumab 4) MRI then Metronidazole for Perianal Fistulae Disease
57
What is given to Maintain Remission in Crohn's? (Just Step 2 from the Medical Management for Inducing Remission)
1) Azathioprine or Mercaptopurine 1a) Otherwise Methotrexate
58
What is the management of Peri-Anal Fistulae in Crohn's?
Drainage Seton for HIGH FISTULAE (Trans-sphincteric- so passes through muscle layers and is complex) Fistulotomy for LOW FISTULAE (Submucosal)
59
What is the management of Peri-Anal Abscess in Crohn's?
IV Antibiotics- Ceftriaxone and Metronidazole They also require Examination under Anaesthetic and Incision and Drainage. An Incision is made in the affected region and the pus is broken up
60
What is the method of action of Imitinib?
It Inhibits Tyrosine Kinase
61
What is a significant side effect of Metronidazole?
Peripheral Neuropathy
62
What are the histological signs of Crohn's?
Does not extend beyond submucosa (So only Submucosal Fibrosis)- Cobblestone Mucosa Goblet cell depletion Crypt Abscesses (collections of Neutrophils in Crypts)
63
What is a complication of Terminal Ileum Resection (done for Crohn's Disease) and what are the signs?
Bile Acid Malabsorption Presents as Diarrhoea and Fatty Stools
64
Where are Cytochrome P450 Enzymes found?
They are metabolised in the Liver
65
What are the 7 Cytochrome P450 enzyme Inducers and 9 Inhibitors?
Inducers (Avoid in Oral Contraceptives) 1) Alcohol (Chronic) and smoking 2) Phenytoin 3) Phenobarbitone !!!!4) Rifampicin !!!!5) Carbamazepine 6) Griseofulvin 7) St. John's Wort Inhibitors (INCREASEs INR and increases STATIN concentration) (OG DEVICES) 1) Omeprazole 2) Grapefruit Juice 3) Disulfiram 4) Erythromycin 5) Valproate 6) Isoniazid 7) Ciprofloxacin 8) Ethanol (Acute Intoxication) 9) Sulphonamides
66
When should patients be checked for Upper GI cancer in Peptic Ulcer Disease? (ENDOSCOPY within 2 weeks)?
Over 55 or ALARM signs - Anaemia - Loss of Weight - Anorexia - Recent onset of Symptoms - Melaena - Swallowing Difficulties (Dysphagia)
67
What are the signs of Peptic Ulcer Disease? In addition to the pain what other symptom is there?
Epigastric pain, worse when hungry and relieved by eating if duodenal (common) or worse after eating if gastric (less common) !!! NAUSEA in PEPTIC ULCER DISEASE Nausea Intolerance of Fatty Acids
68
What is the management of patients who are not over 55 or have ALARMS signs for Peptic Ulcer Disease? What 2 medication types should they avoid?
!!!!!!!Lifestyle Changes, Medication changes (avoid NSAIDs and Steroids) and give Antacids If symptoms do not improve, test for H Pylori (breath or Stool Antigen) (but they should not have taken Antibiotics or Bismuth for 4 weeks and PPI for 2 weeks before the test) - If positive- TRIPLE THERAPY= PPI, Clarithromycin and Amoxicillin (Metronidazole if allergic to Penicillin) - If negative- PPI or H2 antagonist 6-8 weeks later, do another Endoscopy
69
What are the differentials for Dysphagia?
- Neurovascular Disease- Cerebrovascular Disease, Parkinson's, Motor Neurone Disease, Bulbar Palsy - Motility Disorder- Achalasia, Diffuse Oesophageal Spasm, Systemic Sclerosis (SOLIDS and LIQUIDS affected from the start and other features of CREST) - Mechanical/ Obstructive Disorders- Strictures, Malignancy, Pharyngeal Pouch, Extrinsic Pressure from LUNG CANCER, Mediastinal Lymph Nodes, Retrosternal Goitre 1) Odynophagia suggests Candida Infection (suspect if HIV), Malignancy, Ulcer or Spasm 2) Halitosis, Gurgling, Bulging neck on swallowing suggests Pharyngeal Pouch 3) Iron Deficiency, Glossitis and Angular Stomatitis suggests Plummer-Vinson Syndrome- also OESOPHAGEAL WEBS 4) Odynophagia with no weight loss or vomiting- Oesophagitis 5) Difficulty in making the swallowing motion suggests Neurological cause
70
What are the Hepatobiliary causes of Malabsorption?
Primary Biliary Cirrhosis (autoimmune bile duct degradation) and Ileal Resection (failure of Bile acid absorption at Terminal Ileum)
71
What are the Pancreatic Causes of Malabsorption?
Chronic Pancreatitis Pancreatic Cancer Cystic Fibrosis
72
What are the Small Bowel Causes of Malabsorption?
Coeliac Disease Crohn's Disease Small Bowel Resection
73
What are the Typical Symptoms of GORD which suggest a diagnosis?
Dyspepsia (Heartburn) Sensation of Acid Regurgitation
74
What are the Atypical Symptoms of GORD? Look at the G and the O of GORD
Epigastric Pain (worse when lying down and after eating) Nausea Bloating and Belching (so acid is refluxed) Globus (lump in your throat) Laryngitis Tooth Erosion
75
What Investigations should be ordered in GORD? (3) POO
1) Give them a trial of PPI 2) OGD if there are Alarm symptoms (like Peptic Ulcer Disease) (anaemia, weight loss, melaena, Dysphagia etc.) or if Atypical or Recurrent symptoms 3) Oesophageal Manometry (like Achalasia)
76
What is the management of GORD? Conservative, 2 drugs, surgery
Lifestyle Interventions- weight loss, dietary changes, elevation of head at night, avoidance of late-night eating PPI Therapy Antacids for symptomatic relief If Refractory- Anti-reflux Surgery
77
What are the 3 complications of GORD?
!!!!2 of them start with OESOPHAGUS 1) Oesophageal Ulcer 2/3) Barrett's Oesophagus and therefore Adenocarcinoma of the Oesophagus 4) Oesophageal Stricture
78
What are the signs of Gastroparesis?
Nausea and Vomiting Feeling of Fullness after a few bites !!!!Abdominal Pain and BLOATING Constipation !!! ABDOMINAL PAIN and ERRATIC GLUCOSE CONTROL in GASTROPARESIS Also POOR GLUCOSE TOLERANCE in Diabetes Patients due to lack of absorption of Ingested Food
79
What is needed for the diagnosis of Gastorparessis?
Solid Meal Gastric Scintigraphy (Radionuclide Studies of Gastric Emptying)
80
What is the management of Gastroparesis? Diet and 3 meds
1) Dietary Modification- Low fibre, Smaller/ more frequent meals, Pureed/ mashed food 2) Domperidone- Dopamine Receptor Antagonist (unless QT Prolongation or Heart Failure) 3) Metoclopramide or Erythromycin (Motility Agents)
81
What is Giardiasis?
It is a type of Gastroenteritis caused by the parasite Giardia Lamblia It is spread via the Faecal-Oral Route so a history of Contaminated water, Uncooked Fruit or Vegetables or a Lack of Hand Hygiene are key
82
What are the 4 signs of Giardiasis? How long is the incubation period? Bloating and Non-bloody Steatorrhoea
The incubation of the disease is ONE to THREE WEEKS 1) Explosive, Watery, Non-bloody (unlike Salmonella) Steatorrhoea (Foul Smelling and Difficult to Flush) 2) Bloating and Flatulence (unlike Cholera), Nausea !!!!!!!!!!!!!!3) Weight Loss and Anorexia 4) NEW ONSET LACTOSE INTOLERANCE for up to SIX WEEKS can also occur
83
What is the diagnosis of Giardiasis?
Stool Microscopy for Trophozoites and Cysts is conducted THREE TIMES on THREE SEPARATE days Other tests= Stool antigen tests (Greater Sensitivity), Stool PCR Duodenal Aspirates and Biopsies are invasive and only used in Indeterminate Cases
84
What is the management of Giardiasis?
Without treatment, the disease can persist for MONTHS Treatment is with Antibiotics like METRONIDAZOLE
85
What is Gilbert's Syndrome? What is the Inheritance Pattern? Doesn't require treatment as it is benign
It is an Autosomal Recessive condition where there is decreased activity of the UDP enzyme that conjugates bilirubin due to a mutation in the UGT1A1 gene so Lack of Conjugation
86
What are the signs of Gilbert's Syndrome? Doesn't require treatment as it is benign
Intermittent Mild Jaundice in relation to Chest, Fasting, Infection or Exercise There will be a NORMAL FBC but mildly raised Unconjugated Bilirubin, other LFTS will be NORMAL
87
What is Henoch-Schonlein Purpura? What typically occurs before it? What is seen on Skin Biopsy?
It is the most common type of Vasculitis seen in children aged 3-15 years old. This occurs due to the DEPOSITION of IgA Immune Complexes in the affected organs So it is associated with IgA Nephropathy as well Skin Biopsies of the affected regions show Neutrophils and Monocytes- also use the biopsy for Immunofluorescence of C3/IgA which is DEFINITIVE DIAGNOSIS It is typically seen after an Upper Respiratory Tract Infection
88
What are the signs of Henoch-Schonlein Purpura? Remember PANA
TETRAD 1) Purpuric Rash over Buttocks and Extensor Surfaces 2) Abdominal Pain 3) Arthralgia/ Arthritis 4) Renal Disease presenting as Asymptomatic Microscopic Haematuria or Isolated Proteinuria (Nephritis)
89
How is Henoch-Schonlein Purpura diagnosed? What 3 things are high and what is the gold standard for diagnosis?
High ESR/CRP !!!!!High IgA (complexes are depositing) !!!!!!HIGH Creatinine (if Renal Involvement) Skin/ Renal Biopsy with Immunoflourescence for IgA/ C3 is GOLD STANDARD
90
What is the management of Henoch-Scholein Purpura? What should you look for if the abdominal pain is Severe?
Most cases resolve Spontaneously and don't need treatment !!!!!Analgesia and Supportive measures Corticosteroids for Renal Disease Severe Abdominal Pain- Check for possible Intussusception or Bowel Infarction Referral to renal specialist for further Immunosuppression or Dialysis
91
What are the signs of a Hepatitis infection? (3,2,2) Four signs of Liver Failure
1) Malaise and Fatigue 2) Nausea and Vomiting 3) Lymphadenopathy !!!!!1) Right Upper Quadrant Pain !!!!!2) Hepatomegaly and Splenomegaly 1) Diarrhoea (may be Pale Stools and Dark Urine) 2) Jaundice Liver Failure- Hepatic Encephalopathy, Jaundice, Ascites, Abnormal Clotting
92
What type of Virus is Hepatitis A and how is it transmitted?
It is an RNA Picornavirus, transmitted through a FECAL-ORAL ROUTE (occasionally through Food Sources or through Anal Sex)
93
What is the Epidemiology of Hepatitis A and B? What is the incubation period? Which one of these is the most common cause of Hepatitis Worldwide?
Hepatitis A - Prevalence is high in Developing countries - Immunize Travellers and those at Risk - Faeco-Oral Route - Incubation= 2-4 weeks Hepatitis B - Most common cause of Hepatitis World-wide - High prevalence in Africa, Asia and Pacific Islands - Blood/ Body Fluid - Incubation period is 2-3 months
94
What is the presentation of Hepatitis A? 3 symptoms What is the management?
1) Flu-like Symptoms 2) Jaundice (Abnormal LFTs) 3) RUQ Pain and Hepatomegaly 4) Complete recovery can take 6 months (management is supportive)
95
What are the investigations of Hepatitis A?
IgM and IgG Antibodies to Hepatitis A
96
What type of Virus is Hepatitis B and how is it transmitted?
dsDNA It is transmitted via Blood or Body Fluids - Vaginal/ Anal Intercourse - Transfusion - Vertical Transmission to Babies from Moms
97
What are the signs of Hepatitis B? (think standard hepatitis signs) What is the risk of Chronic Disease in adults and children?
Only 5% of Children have Jaundice. The majority get Chronic Disease 50% of Adults have Jaundice, Fever, Malaise, Darkening of Urine and Pale Stools. The risk of Chronic Disease is Low
98
What is the Serology of Hepatitis B?
1) HbsAg means the infection is still going on. >6 months means Chronic. If it is positive but the infection is over symptomatically then it means they are a carrier 2) AntiHbs means they have a previous or current infection or a vaccination 3) Anti-Hbc means the patients have a previous or current INFECTION (not a vaccination basically). IgM implies Acute, IgG implies Chronic 4) HbeAg is a marker of virus replication so a high amount of this means the patient is very infectious. Anti-HbeAg implies they are least infectious
99
What is the management of Hepatitis B?
Only for adults who are: - HBsAg Positive - Compensated Liver Disease - Pregnant Peg ///// Ten Ent First Line- Peginterferon Alfa 2 Second Line- Tenofovir, Entecavir
100
What type of virus is Hepatitis C and how is it transmitted?
RNA Virus of the Flaviviridae Family (Type 1 and 3 are the most common) Blood and Bodily Fluid- - IV Drug Use - Blood Transfusion - Haemodialysis (rare in UK) - Sexual Transmission (rare) - Needlestick Transmission - Perinatal infection from Mother to Baby Incubation Period= 2-3 Months
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What are the signs of Acute and Chronic Hepatitis C? (Most are ASYMPTOMATIC) What are the 3 complications? Chronic Hepatitis has Arthritis and Sjogren's as well
Most infections are Asymptomatic- 55-85% go on to develop Chronic Infection Signs (seen in 1/3 of patients)- Arthralgia, Jaundice, Fatigue Chronic Infection= Persistently High LFTs, Cirrhosis develops in 20-30% of patients 1-2% develop Hepatocellular Carcinoma, 2-5% develop Liver Failure THREE COMPLICATIONS - Cryoglobuminaemia - Cirrhosis - Hepatocellular Carcinoma
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What investigations should be ordered in Hepatitis C? Remember there are NO Vaccinations for Hep C After how long of HCV RNA does the disease need to be treated?
Anti-HCV Serology- 90% are positive 3 MONTHS after infection HCV RNA- If positive for more than 2 MONTHS then need to be treated
103
What is the management of Hepatitis C? What are the side effects of Ribavirin? S-virs with or without RIBAVIRIN
Symptomatic Treatment in the Early Stages of the Disease Drug Therapy should be considered for ALL PATIENTS. Nucleoside Analogs are preferred *(daclatasvir + sofosbuvir or sofosbuvir + simeprevir) with or without Ribavirin* but they lead to Undetectable Viral Loads Ribavirin side effects- - Haemolytic Anaemia - Cough - Teratogenicity (don't get pregnant for 6 months after stopping) Antivirals are beneficial in all patients
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What is the management of Hepatitis C?
Symptomatic Treatment in the Early Stages of the Disease Drug Therapy should be considered for ALL PATIENTS. Nucleoside Analogs are preferred- SOFOSBUVIR- but they lead to Undetectable Viral Loads Antivirals are beneficial in all patients
105
What are the risk factors for Hepatocellular Carcinoma?
- Chronic Viral Hepatitis (B or C) - Cirrhosis - Primary Biliary Cirrhosis - Non-alcoholic Fatty Liver Disease (but Alcohol can cause it still) - Alcohol Misuse - Obesity - Type 2 Diabetes - Inherited Metabolic Diseases - Rare Diseases= Wilson's Disease, Porphyria cutanea tarda, Alpha-1Anti-trypsin
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What investigations should be ordered in Hepatocellular Carcinoma? What warrants screening?
Bloods- FBC, U/E, CRP, LFTs Liver Screen including Hepatitis Screen !!!!!!Abdominal Ultrasound and AFP is used for SCREENING if: 1) CIRRHOSIS occurs due to (3) Alcohol, Hep B/C, Haemochromatosis AFP marker (but only abnormal in 50% of cases) (if Normal, it could be liver metastasis which is more common than liver cancer) CTAP and PET Scan
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What is the management of Hepatocellular Carcinoma?
Hepatic RESECTION Liver Transplant Radiofrequency Ablation Sorafenib
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What are the signs of Hepatocellular carcinoma? DISTENSION/ ASCITES and GI HAEMORRHAGE, and Fever
Abdominal Discomfort (pain) and DISTENSION JAUNDICE Weight Loss GI HAEMORRHAGE Pruritus Fever Nausea or Vomiting Following Alcoholic Liver Disease/ Cirrhosis/ Hepatitis B or C
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What is Hereditary Haemochromatosis? What is the inheritance pattern?
It is an Autosomal Recessive Disorder of Iron Metabolism where there is excessive Iron Accumulation and Deposition across the skin, joints and organs This occurs due to the HFE Protein
110
What are the signs of Hereditary Haemochromatosis? Suspect in Diabetics with Joint Pain and Deranged LFTs (or Cirrhosis) !!!!What are the first 3 symptoms?
FIRST THREE SYMPTOMS ARE Fatigue, Erectile Dysfunction and Arthralgia Depositing in the Pancreas, Liver, Joints, Heart and Adrenal Glands 1) BRONZE Skin 2) Type 2 Diabetes Mellitus due to Pancreatic Deposition 1) Liver Cirrhosis and Adrenal Insufficiency 2) Hepatomegaly and Chronic Liver Disease 1) Dilated Cardiomyopathy due to Myocardial Deposition 2) Joint Pain due to Joint Deposition
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What tests should be ordered for the diagnosis of Hereditary Haemochromatosis?
Bloods - Deranged LFTs (as well as Biopsy) - Raised Serum Ferritin - Raised Transferritin Saturation (MOST IMPORTANT TEST) - (Also LOW TIBC) Genetic Testing can reveal HFE gene defects MRI Imaging of the brain and heart may show evidence of Iron Deposition Liver Biopsies will also show Increased Iron Stores
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What are the Complications of Hereditary Haemochromatosis? Things that affect the Liver are unchanged by Phlebotomy
Liver Fibrosis Cirrhosis Hepatocellular Carcinoma Skin Hyperpigmentation (which decreases after Phlebotomy) Diabetes Mellitus (often unchanged by Phlebotomy) !!!!!!!!!!Severe Myocardial Siderosis which leads to cardiac dysfunction (Dyspnoea, Orthopnoea or Arrhythmia- improves after Iron Depletion) - Restrictive and Dilated Cardiomyopathy (improves after Venesection) Arthropathy
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What is the management of Hereditary Haemochromatosis? What should patients avoid?
Aim is to normalise body iron stores and prevent iron-mediated tissue injury and organ dysfunction Primary therapy- Phlebotomy/ Venesection as this Stimulates Erythropoeisis !!!!Another option is Desferrioxime AVOID FRUIT JUICES- Especially Vitamin C
114
What are the 2 types of Hiatus Hernia?
Sliding (80%) - The Gastro-oesophageal Junction slides up into the Chest. A less competent sphincter results in Acid Reflux. Treatment is similar as for GORD Rolling (20%) - The Gastro-oesophageal Junction remains in the Abdomen but part of the stomach protrudes into the chest along the Oesophagus. This needs more URGENT treatment as Volvulus (twisting) can result in Ischaemia and Necrosis
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What are the signs of Hiatus Hernia?
Heartburn Dysphagia Regurgitation Odynophagia !!!!!Shortness of Breath Chronic COUGH and Chest Pain (Heart Burn)
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What is needed for the diagnosis of Hiatus Hernia?
Barium Swallow (Upper GI Series) Otherwise - Endoscopy and Manometry
117
What is the management of Hiatus Hernia? What 3 medications should they avoid?
Conservative - Lose weight - Elevate the head of the bed - Avoid Large Meals and eat 3-4 hours before bed - Avoid Alcohol and Acidic Food - Avoid Smoking, Chocolate, Caffeine !!!!!!Calcium Channel Blockers, Beta Blockers and Nitrates can worsen symptoms Medical- - PPI for 6 weeks Surgical- - Nissel's Fundoplication if medications dont work or if patient prefers it (majority do not need this)
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What is seen on Xray of Hiatus Hernia?
A Retrocardiac Round Structure and a Stomach Bubble
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Which drugs cause Diarrhoea?
CM MACORN/E Chemotherapy Magnesium Metformin Antibiotics (Penicillin) Cimetidine Omeprazole Ranitidine NSAIDs Also ENTERAL FEEDING
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What drugs cause Constipation?
AI ALOA Antidepressants (Amitriptyline) Iron Antipsychotics Levodopa Opiates Aluminium
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What should be done in Overflow Diarrhoea?
Do NOT REDUCE LAXATIVES even though they have diarrhoea instead do Rectal Exam
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What type of Laxative is Microgol?
Osmotive Laxative
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What is TIPS? And when is it indicated?
An Artificial channel between the inflow portal vein and the outflow hepatic vein (Transjugular Intrahepatic Portosystemic Shunt) 1) Secondary Prophylaxis for Oesophageal Variceal Bleeding 2) Treatment for Refractory Ascites 3) Treatment for Portal Hypertension in Budd Chiari
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What is the side effect of TIPSS?
Hepatic Encephalopathy
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What is the Manning Criteria for the diagnosis of IBS?
Abdominal Discomfort relieved by Defecation or Discomfort associated with changed Bowel Habits AND - At least 2 OF: !!!!!!1) Altered stool passage (Straining or Urgency) !!!!!2) Abdominal Bloating 3) Symptoms made worse by Eating 4) Passage of Mucus There may also be Lethargy and Nausea but this is normal
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What are the symptoms in IBS that can indicate a different disease?
Pain or Diarrhoea that disturbs sleep PR BLEEDING Weight Loss FEVER
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What investigations should be conducted to rule out other diseases in IBS?
Faecal Calprotectin (raised in IBD, not IBS) FBC, ESR/CRP- (raised in IBD, not IBS) Coeliac Serology
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Which investigations are NOT required in IBS? Only really need to test for other diseases- Faecal Calprotectin/ Anti TTg/ FBC, ESR, CRP for IBD, Coeliac etc. No Need for Imaging/ H Pylori/ Infection
Abdominal Ultrasound Sigmoidoscopy and Colonoscopy TFTs FOBT- detects whether there is blood in the stool Faecal Ova and Parasites Hydrogen Breath Test
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When is Bilirubin Present in URINALYSIS? In Prehepatic, Hepatic and Posthepatic Jaundice?
Absent in Prehepatic Present in Hepatic and Posthepatic
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When is Urobilinogen Present in Urinalysis? In Prehepatic, Hepatic and Posthepatic Jaundice?
Present in Normal Increased in Prehepatic and Hepatic Decreased or Absent in Posthepatic
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What are the 3 causes of Prehepatic Jaundice?
1) Conjugation Disorders- Gilbert's Syndrome and Crigler-Najjar 2) Haemolysis- Malaria and Haemolytic Anaemia 3) Drugs- Contrast or Rifampicin
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What are the 11 causes of Hepatic Jaundice? 4, 4, 3
Alcohol Budd Chiari Cirrhosis Drugs (V PHATS- Valproate, Paracetamol, Halothane, Antibiotics for Tuberculosis, Statins) !!!!Liver Mass (could also be post hepatic jaundice though) Autoimmune Hepatitis Viral Hepatitis Alpha-1-Antitrypsin Deficiency Wilson's Disease Haemochromatosis Failure to excrete Conjugated Bilirubin (Rotor and Dubin-Johnson Syndrome- Autosomal Recessive- both Benign)
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What are the drug causes of Hepatic Jaundice?
V PHATS Valproate Paracetamol Overdose Halothane Antibiotics (Tuberculosis) Statins
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What are the causes of Posthepatic Jaundice?
The 3 P_Cs/ Stones/ Drugs/ Malignancies/ 2 extra Primary Biliary Cirrhosis/ Primary Biliary Cholangitis/ Primary Sclerosing Cholangitis (seen in UC with signs of Jaundice/ raised ALP) Common Bile Duct Stones or Mirizzi's Syndrome Drugs (CCFNSS- Coamoxiclav, Chlorpromazine, Flucloxacillin, Nitrofurantoin, Steroids, Sulphonylureas) Malignancies- Head of Pancreas Adenocarcinoma, Cholangioacarcinoma Caroli's Disease Biliary Atresia
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What are the signs of Mirizzi's Syndrome? Obstructive Jaundice
Two week history of Jaundice (yellowing of the skin and sclera)- Dark Urine and Pale Stools Due to CBD Stone !!!!Also Fever, Nausea and Vomiting may be seen
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How are the LFTs different in different Jaundices? What are the readings like for Hepatic, Prehepatic and Posthepatic Jaundice? What does Low Albumin Suggest? What is the most common cause for high GGT? How should the synthetic function of the liver be measured?
Prehepatic- AST/ALT would NOT be markedly elevated Hepatic- Bilirubin would be raised. ALP is raised but NOT MARKEDLY RAISED. Also LOW ALBUMIN, which also suggests Chronic Posthepatic- ALP is MARKEDLY raised. High Bilirubin. AST is 2x higher or more than ALT= Alcoholic Hepatitis. High GGT is also present. ALT is higher if Paracetamol Overdose In Hepatitis A- ALT>1,000 Non-Alcoholic Fatty Liver Disease- Obesity, Diabetes, Hypercholesterolaemia Remember that 'liver function tests' do not always accurately reflect the synthetic function of the liver. This is best assessed by looking at the prothrombin time and albumin level.
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What are the signs of Compensated and Decompensated Cirrhosis?
Compensated (FANGS) - Fatigue and Anergia - Anorexia and Cachexia - Nausea or Abdominal Pain - Gynaecomastia - Spider Naevi Decompensated (GEPJAP) - Gynaecomastia/ Testicular Atrophy - Early Bruising - Pruritus - Jaundice - Ascites and Oedema - Palmar Erythema
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What are the causes of Cirrhosis? Memorise the first 3 and the drugs, read the rest
Usually- - Alcohol - Hepatitis B and C - Non-Alcoholic Fatty Liver Disease Autoimmune - Autoimmune Hepatitis - Primary Biliary Cirrhosis - Primary Sclerosing Cholangitis - Sarcoid Genetic - Haemochromatosis - Wilson's Disease - Alpha 1 Antitrypsin Deficiency DRUGS - I am - Isoniazid - Amiodarone - Methotrexate Heart Failure, Budd-Chiari Syndrome
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What blood tests should be ordered in Cirrhosis? Check the Liver, check the 3 blood cells and 1 other
LFTs - AST, ALT, ALP, GGT - Albumin - Bilirubin FBC (3 blood cells) - Leucocytosis (possible Infective Cause) - Thrombocytopaenia (Chronic Liver Disease) - Anaemia (Normocytic= Wilson's Disease or GI Bleed from Oesophageal Varices) - Macrocytic- Folate or B12 Deficiency in Alcohol Excess Urea and Electrolytes - look for hepatorenal syndrome or any Electrolyte Abnormality
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What 5 Investigations should be ordered in Cirrhosis to rule out other conditions?
!!!!!Cytomegalovirus Serology (Viral Infection) Iron Studies (Haemochromatosis) Alpha 1 Antitrypsin (A1AT Deficiency) Caeruloplasmin (Wilson's Disease) Autoantibodies (Autoimmune Hepatitis, Primary Biliary Cirrhosis, Primary Sclerosing Cholangitis)
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What 4 Imaging and Invasive Investigations should be conducted in Cirrhosis? TRANSIENT ELASTOGRAPHY is the most important one for CIRRHOSIS, although a LIVER BIOPSY can also be done
!!!If Ascites- Peritoneal Tap for Bacterial Peritonitis (if Neutrophils>250) !!!!!!!Doppler Ultrasound for identifying Budd Chiari Transient Elastography or Acoustic Radiation Force Impulse for Non-Alcoholic Fatty Liver Disease If Still in doubt- Liver Biopsy (only if INR<1.5)
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What is the management of Decompensated Liver Disease (GEPJAP symptoms)? What 4 things should be avoided? What should they be screened for regularly? What is given for the Pruritus? What should be given for Encephalopathy? What 3 things indicate a high risk of Bacterial Peritonitis? And what is the ultimate treatment?
1) Avoid NSAIDs, Alcohol, Sedatives, Opiates 2) Ultrasound scan and Serum AFP every 6 months to detect development of Hepatocellular Carcinoma 3) Pruritus- Cholestyramine (bile acid sequestrant) 4) Manage Ascites with Fluid Restriction (<1.5L per day) and a Low Salt Diet. Spironolactone and Furosemide if necessary. If severe- Paracentesis with Albumin Infusions 5) Recurrent Episodes of Encephalopathy can be reduced with Prophylactic Lactulose and Rifaximin 6) If High Risk of Bacterial Peritonitis (Low Albumin, High INR, Low Ascitic Albumin)- give Prophylactic Antibiotics 7) Ultimate treatment- Liver Transplant
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What are the signs of Alpha 1 Antitrypsin Deficiency?
Early onset COPD and Cirrhosis- do SPIROMETRY as INVESTIGATION
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What is the first test to be done on ANY Drowsy Patient with a suspected Liver Condition?
Blood Glucose (Capillary) as they are at HIGH RISK of Hypoglycaemia
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What is an Indication for Vitamin K delivery?
PT>14
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What is Chronic Liver Failure?
Liver Failure on the background of Cirrhosis
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What are the signs of Liver Failure? (Similar to Decompensated Liver dIsease)
Hepatic Encephalopathy Abnormal Bleeding Ascites Jaundice Cerebral Oedema (so may be signs of Raised ICP)
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What is the pathophysiology of Hepatic Encephalopathy in Liver Failure?
Ammonia accumulates in the circulation This crosses the blood brain barrier and is detoxified by Astrocytes- this forms Glutamine which disrupts the Osmotic Balance This causes Cerebral Oedema
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What are the Investigations that should be ordered in Liver Failure? !!!First 2 are the same as Cirrhosis
Doppler Ultrasound if Budd Chiari is suspected Ascites= Peritoneal Tap for Bacterial Peritonitis Abdominal Ultrasound Blood Tests- FBC/ CRP/ U&Es/ Albumin/ Clotting Screen
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What 5 Blood Tests should be ordered in Liver Failure? Very Very similar to cirrhosis 2, 3 and 4 are the same
1) INR to look for coagulopathy and establish a diagnosis of liver failure 2) Liver Function Tests including albumin to check liver enzymes, bilirubin levels and to further assess synthetic function of the liver 3) Full blood count to look for leucocytosis (possible infective cause), thrombocytopaenia (in chronic liver disease) and anaemia (normocytic could indicate haemolytic anaemia as in Wilson's or a GI bleed from oesophageal varices, macrocytic could indicate B12 and folate deficiency as in alcohol excess) 4) Urea and electrolytes to establish baseline renal function and to look for hepato-renal syndrome or any electrolyte abnormalities (such as hypokalaemia which can worsen encephalopathy and should be corrected) 5) Tests to determine cause such as: - Paracetamol level (paracetamol overdose) - Hepatitis - Epstein-Barr virus - Cytomegalovirus serology (viral infection) - Iron studies (haemochromatosis) - α-1 anti-trypsin (α-1 antitrypsin deficiency) - Caeruloplasmin level (Wilson's disease) - Iron studies (hereditary haemochromatosis) - Auto-antibodies (autoimmune hepatitis, primary biliary cirrhosis, primary sclerosing cholangitis)
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What are the main complications of Liver Failure?
!!!INFECTION (happens in almost all patients) Also - Cerebral Oedema - Bleeding (where there is a source- like introduction of new ICP monitors) - Hypoglycaemia (TREAT with GLUCOSE) - Multiorgan Failure
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What are the 6 complications of Cirrhosis?
1) Ascites 2) Spontaneous bacterial peritonitis 3) Hepatic encephalopathy 4) Portal hypertension 5) Variceal bleeding 6) Hepatorenal syndrome
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What is the management of Liver Failure? What should be monitored in these patients?
Treat the underlying cause MONITOR their BLOOD GLUCOSE - Encephalopathy- ORAL Lactulose and IV Mannitol to prevent Cerebral Oedema - Coagulopathy- give Vitamin K and Fresh Frozen Plasma if they are bleeding - Spontaneous Bacterial Peritonitis- Broad Spectrum Antibiotics (Ceftriaxone) - Renal Dysfunction- Haemofiltration may be needed. Give them Human Albumin solution rather than Crystalloid if they need resuscitation - Liver Transplantation may be needed
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What is the criteria for Liver Transplant?
Paracetamol Induced - Acidic Arterial Blood after 1 day OR 1) PT>100 AND Creatinine>300 AND Grade 3 or 4 Encephalopathy (Asterixis, Coma, Restlessness) Non Paracetamol Induced - PT>100 OR any THREE of 1) Drug Induced Liver Failure 2) <10 years old or >40 years old 3) 1 week from first Jaundice to Encephalopathy 4) PT>50 5) Bilirubin >300
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What is Melanosis Coli?
It is the Dark Brown Pigmentations of Macrophages in the Lamina Propria found on Colonoscopy This is due to Chronic Laxative Excess (like Senna)- and is reversed by stopping these
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What is Mucosa-associated Lymphoid Tissue (MALT)? What is it associated with?
It is a rare Low-grade Non-Hodgkin's Lymphoma that presents in the stomach It develops from B Lymphocytes in the Marginal Zone It is strongly associated with H Pylori Infections
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What are the signs and management of MALT?
Abdominal Pain, Nausea ANAEMIC Symptoms and Weight Loss There may be paraproteins in the blood Management- - H-Pylori Eradication Therapy - If this doesn't work- chemotherapy and radiotherapy
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What are Candida?
White patches at the mouth caused by the fungus Candida- Leukoplakia describes the white patches It can occur due to - Old Age - Diabetes, Immunosuppression, Corticosteroids - Malignancy - Antibiotics Management- FLUCONAZOLE
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What is Hairy Leukoplakia?
Benign Condition that does not need treatment It is caused by EBV and suggests underlying HIV
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What are Oral Ulcers?
Caused by - Iron, B12, Folate Deficiencies - Crohn's Disease
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What are the mouth signs of Iron Deficiency Anaemia?
Glossitis Angular Cheilitis/ Stomatitis Post-cricoid webs
162
What are the signs of Pancreatic Cancer?
Early Disease- Non specific- Malaise, Abdominal Pain, Nausea, Weight Loss Advanced Disease 1) Courvoisier's sign- Blockage of Common Bile Duct from the tumour- Obstructive Jaundice and a Painless Palpable Gallbladder 2) Diabetes- suspect in Old Patient with NEW Diabetes and is ALSO LOSING WEIGHT 3) Pancreatitis Signs 4) Paraneoplastic Syndromes. Trosseau's Syndrome- Thrombophlebitis affecting Extremities- veins are swollen and rigid 5) Disseminated Intravascular Coagulation It metastasises to LUNG, LIVER and BOWEL (haemoptysis, jaundice and constipation)
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What investigations should be ordered in Pancreatic Cancer? Associated with BRCA 2 gene and HNPCC cancer
Suspect in Painless Obstructive Jaundice 1) Always do this- High Clinical Suspicion- HIGH RESOLUTION CT FIRST- may show DOUBLE DUCT SIGN 2) Ultrasound - look for liver metastasis and CBD dilatation. BUT NORMAL ULTRASOUND does not rule out Pancreatic Cancer 3) MRCP shows info about the bile ducts 4) Endoscopic Ultrasound can detect small lesions as well or ERCP can be used for biopsy
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What is the treatment of Pancreatic Cancer? What are the side effects of the procedure?
Resect with Pancreaticoduodenectomy (Kausch-Whipple Procedure aka Whipple Resection) if 1) No evidence of involvement of the Superior Mesenteric Arteres or Coeliac Arteries 2) No Evidence of Distant Metastasis Side effect of Whipple's- Peptic Ulcer Disease and Dumping Syndrome
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What are the risk factors for Duodenal Ulcers?
NSAIDs Steroids SSRIs Smoking Increase in Gastric Acid Secretion/ Increased Gastric Emptying- MORE ACID in Duodenum Blood Group O
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What is the management of Peptic Ulcers if H Pylori Negative?
6 weeks of PPI and Lifestyle Advice
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What are the signs of Peritonitis?
Abdominal Guarding Rebound Tenderness (Pressing hurts less than letting go) Also Fever, Vomiting, Tachycardia, Hypotension Suspect if ABDOMINAL PAIN AND FEVER in LIVER DISEASE
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What is seen in Abdominal Xray of Peritonitis? and Chest Xray?
Rigler Sign Air is on Both Sides of the Intestine (Luminal and Peritoneal Sides of the Bowel Wall) Also Air Under Diaphragm on CXR
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What is Pernicious Anaemia? Suspect if other Autoimmune diseases are present
It is a deficiency in Red Blood Cells caused by the Lack of B12 This is usually due to the AUTOIMMUNE reaction to INTRINSIC FACTOR PRODUCTION
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What are the causes of B12 Deficiency?
TUBERCULOSIS METFORMIN !!!!!!!Any cause of Pancreatic Insufficiency Zollinger-Ellison Syndrome !!!!Small Bowel Bacterial Growth (since bacteria use B12) Gastric Causes- Pernicious Anaemia, Chronic Severe Atrophic Gastritis
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What are the Blood Results for Pernicious Anaemia? What is the Reticulocyte count? What is seen on Blood Smear? What is Pernicious Anaemia associated with?
Low Hb High MCV High MCH Normal MCHC LOW B12 Low or Normal Folic Acid Low Reticulocyte (immature red blood cells) Large/ Oval RBCs in Blood Smear Antibodies against Intrinsic Factor and Parietal Cells Pernicious Anaemia is associated with Atrophic Body Gastritis
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What is the management of Pernicious Anaemia? What should they be warned about developing?
Lifelong replacement therapy with Cobalamin And warn them that they are at risk of Gastric Cancer and Carcinoids
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What are the signs of a Pharyngeal Pouch?
Dysphagia Regurgitation of Undigested Food Aspiration Chronic Cough !!!!!Weight Loss LUMP in NECK with HALITOSIS
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What investigations should be ordered in a Pharyngeal Pouch? What should NOT be done?
Avoid Endoscopy due to the risk of perforating the Lesion BARIUM SWALLOW shows a Residual pool of Contrast within the pouch (BLACK POUCH)
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What is the management of a Pharyngeal Pouch?
If asymptomatic- no treatment needed Otherwise- Diverticular Resection and Incision of the Cricopharyngeus Muscle
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What are the signs of Plummer-Vinson Syndrome? What disease is it associated with?
Upper Oesophageal Web Post Cricoid Dysphagia Iron Deficiency Anaemia It is associated with Squamous Carcinoma of the Oesophagus
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What is Primary Biliary Cholangitis? What 2 conditions can it lead to?
It is an Autoimmune Condition where the Bile Ducts are inflamed This leads to LIVER CIRRHOSIS They are also at higher risk of Hepatocellular Carcinoma
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What are the signs of Primary Biliary Cholangitis?
Fatigue Itching (Pruritus) Dry Eyes and Dry Skin Jaundice
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What investigations should be ordered in Primary Biliary Cholangitis?
1) Abnormal LFTs 2) Positive Antimicrobial Antibodies 3) Abdominal Ultrasound 4) Liver Biopsy- which shows Inflammation and Scarring and GRANULOMAS around the Bile Ducts 5) RAISED IgM
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What is the management of Primary Biliary Cholangitis?
Largely Supportive but includes 1) Ursodeoxycholic Acid 2) Cholestryamine (for itching) 3) Vitamin Supplements 4) Liver transplantation (may recur after transplant)
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What is Primary Sclerosing Cholangitis associated with typically?
Young Males with IBD (Primary Biliary Cholangitis mainly affects women)
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What are the signs of Primary Sclerosing Cholangitis?
Can be Asymptomatic with Abnormal LFTs or Hepatomegaly Jaundice RUQ pain Fatigue, Weight Loss and Sweats (B Symptoms- so paints picture of RUQ cancer) Associated with Ulcerative Colitis
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What investigations should be ordered in Primary Sclerosing Cholangitis?
Deranged LFTs- that show a Cholestatic Picture Positive (3) (may not be all of them) 1) Anti-Smooth Muscle 2) Antinuclear Antibodies 3) ANCA Antibodies Multiple Beaded Biliary Strictures seen on MRCP/ ERCP
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What are patients with Primary Sclerosing Cholangitis at risk of?
Cholangiocarcinoma And Colorectal Cancer if existing IBD
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What is the management of Primary Sclerosing Cholangitis?
Avoid Alcohol Cholestyramine for Pruritus Give Vitamin ADEK Dilate Strictures with ERCP Liver Transplant may be indicated in cases complicated by Chronic Liver Disease/ Malignancies
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What are the signs of Vitamin C deficiency?
Bleeding and Bruising Gingival swelling and teeth loss Coiled hair
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What is the main risk of Vitamin C deficiency?
Intracerebral or Endocardial Haemorrhage (bleeding in heart or brain)
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What are the signs of Vitamin B1 Deficiency?
Wernicke's Encephalopathy (Confusion, Ataxia, Ocular Abnormalities) Wet Beriberi (High Output Cardiac Failure) Dry Beriberi (Peripheral Neuropathy)
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What are the signs of Vitamin B3 Deficiency?
(if Diet= Corn/Maize) Diarrhoea, Dementia, Dermatitis
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What is the management of Vitamin B3 Deficiency?
Nicotinamide (B3)
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What are the signs of Vitamin A Deficiency?
Night Blindness and Xerophthalmia (Corneal Ulcers) As Vitamin A is needed by Rhodopsin
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What are the causes of RIF Pain?
Gastrointestinal Causes - Acute Appendicitis - Mesenteric Adenitis - Inflamed Meckel's Diverticulum - Diverticulitis (although more common on the left) - Inflammatory Bowel's Disease (Specifically Crohn's) Gynaecological Causes - Ectopic Pregnancy - Ovarian Torsion/ Cyst Torsion - Ovarian Cyst Rupture - Pelvic Inflammatory Disease Urological Causes - Pyelonephritis - Ureteric Colic
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What are the signs of Typhoid Fever? CHARD'S VC
ROSE COLOURED SPOTS Abdominal Pain and Constipation Diarrhoea is less common May be Splenomegaly Headaches commonly Occur Vomiting (not severe) Weakness If Severe- CONFUSION
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What is the diagnosis of Typhoid? What's seen on the blood tests?
Through Culture or detecting the bacterial DNA in the blood, stool or bone marrow Bloods show - Raised Transaminases !!!!!- Neutropenia
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What is the treatment of Typhoid?
Antibiotics- Fluoroquionolones (Floxacins) or Cephalosporins (Ceftriaxone)
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When does Ulcerative Colitis present usually?
15-25 years AND 55-65 years old
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What are the signs of Ulcerative Colitis?
Abdominal Distension/ Tenderness on Palpation Bloody/ Mucosal Diarrhoea WEIGHT LOSS AND FEVER 1) Pallor due to Secondary Anaemia 2) LEFT ILIAC FOSSA (usually) Pain 3) Clubbing 4) Tenesmus or Urgency EXTRA INTESTINAL FEATUREs
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What are the Extra-Intestinal Features of Ulcerative Colitis?
Dermatological - Erythema Nodosum, Pyoderma Gangrenosum Ocular - Anterior Uveitis - Episcleritis - Conjunctivitis Musculoskeletal - Clubbing - ASYMMETRICAL Arthritis - Sacroiliitis Hepatobiliary - Primary Sclerosing Cholangitis (more common in UC than Crohn's) AA Amyloidosis may also be present- secondary to chronic inflammation
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What investigations should be ordered in Ulceraive Colitis?
Blood Tests - FBC- ANAEMIA and HIGH WCC - ESR/CRP- Raised - LFTs- LOW ALBUMIN- as there is malabsorption Microbiological Investigations- Exclude Infective Colitis (C. DIFFICILE) FAECAL CALPROTECTIN IS RAISED Also Endoscopy
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What are the Imaging Findings of Ulcerative Colitis?
Colonoscopy- (3) Continuous Inflammation with an Erythema Mucosa, LOSS OF HAUSTRAL MARKINGS and PSEUDOPOLYPS Biopsy reveals= Loss of Goblet Cells, Crypt Abscesses and Inflammatory Cells (Lymphocytes) Barium Enema- (3) Lead-Piping Inflammation (lack of haustral markings), Thumb Printing (marker of Bowel Inflammation), Pseudopolyps (due to areas of Ulcerating Mucosa adjacent to areas of Regenerating Mucosa) There will be NO Noncaseating GRANULOMAs (this is only in Crohn's)
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What Imaging should be ordered in Ulcerative Colitis?
In Acute Setting, do NOT order Colonoscopy or Bowel Enema due to risk of Perforation. CT is more suitable Abdominal Xray and Chest Xray can exclude Toxic Megacolon
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What determines if Ulcerative Colitis is SEVERE? 6TAPE
1) 6 or More Bowel Movements per day 2) ESR> 30 3) Temperature>37.8C 4) Pulse> 90 5) Anaemia
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What is the management of Mild-Moderate Ulcerative Colitis?
Proctitis and Proctosigmoiditis 1) Topical or Oral ASA (Aminosalicylate) (-SALAZINES) 2) Add Prednisolone after 4 Weeks 3) Ass Oral Tacrolimus after weeks Left sided or Extensive Disease 1) High Dose Oral ASA 2) Add Prednisolone after 4 Weeks 3) Ass Oral Tacrolimus after weeks
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What is the management of Severe Ulcerative Colitis?
1) IV Corticosteroids (otherwise IV Ciclosporin) 2) If no Improvement after 5 days, Add IV Ciclosporin (or INFLIXIMAB if not) and consider Surgery
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What are the indications for Emergency Surgery in Ulcerative Colitis?
1) Acute Fulminant (Severe and Sudden Onset) Ulcerative Colitis 2) Toxic Megacolon with no improvement at 5 days of IV Steroids 3) IV Steroids do not help with symptoms
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What should be given to maintain remission in Mild-Moderate Ulcerative Colitis?
Proctitis 1) Topical ASA and/or Oral ASA Left Sided and Extensive Ulcerative Colitis 1) Oral ASA 2) Azathioprine or Mercaptopurine 3) Biologic (Infliximab, Adalimumab, Vedolizumab, Tofacitinib)
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What are the surgical options for the management of Ulcerative Colitis?
1) Panprotocolectomy with Permanent End-Ileostomy 2) Colectomy with Temporary End Ileostomy (Can be reversed 3 Months Later with an Ileorectal Anastomosis) 3) Complete Proctectomy with a Permanent End Ileostomy or Ileal Pouch Anal Anastomosis
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What are the complications of Ulcerative Colitis?
Toxic Megacolon !!!!!Massive Lower GI Haemorrhage Colorectal Cancer !!!!!Cholangiocarcinoma Colonic Strictures PRIMARY SCLEROSING CHOLANGITIS
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What are the causes of Variceal Bleeds?
Varices arise due to Portal Hypertension (usually because of Cirrhosis) So Cirrhosis can kill patients through Variceal Bleeds and Patients with Cirrhosis should undergo endoscopy to look for Varices (every 2-3 Years)
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What is the management of Variceal Bleeding?
1) DRABCDE 2) Resuscitate and ensure they are Haemodynamically Stable 3) They may need BLOOD TRANSFUSION is large bleed 4) Vitamin K, FFP and Platelet Transfusion to correct clotting abnormalities 5) TERLIPRESSIN (before Endoscopy) is a vasopressin analogue that causes Splanchnic Vasoconstriction which reduces Portal Pressure and Bleeding 6) Broad Spectrum Antibiotics (before Endoscopy) reduce risk of Bactraemia and Spontaneous Bacterial Peritonitis 7) Do endoscopy as soon as they are haemodynamically stable- VARICEAL BAND LIGATION is the Treatment of CHOICE 8) If Bleeding is uncontrolled- a Sengstaken-Blakemore tube can be inserted
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How can Variceal Bleeds be Prevented?
1) Non Selective Beta Blockers like PROPANOLOL and ENDOSCOPIC Variceal Band Ligation 2) If this fails, patients may be referred for TIPSS
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What are the signs of Schistosomiasis?
It is a cause of PORTAL HYPERTENSION 1) Ascites/ Caput Medusae 2) Genitourinary Symptoms (Frequency, Haematuria, Urinary Tract Obstruction) 3) Other GI Symptoms (GI Bleed, Diarrhoea, Abdominal Pain)
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What are the Dietary Sources of Vitamin D?
Oily Fish Red Meat and Liver Egg yolks
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What is Whipple's Disease? What are the signs?
It is a rare systemic condition caused by Tropheryma Whipplei Signs 1) Diarrhoea and Abdominal Pain 2) Joint Pain as well but can affect other systems as well (Cardiac and Nervous Systems) 3) Weight Loss may be present 4) HYPERPIGMENTATION and PHOTOSENSITIVTY
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What investigations should be ordered in Whipple's Disease and what is the management?
It is more common in MALES Diagnosis - Small Bowel Biopsy look for Acid-Schiff Positive Macrophages (PAS Macrophages)- which contains bacteria Management- - CO-TRIMOXAZOLE
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What causes Wilson's Disease?
A defective ATP7B protein product Characterised by Impaired Copper Metabolism and Copper Build up in tissues
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What are the signs of Wilson's Disease? What are the 3 groups of signs and the Ocular Manifestations?
May be Asymptomatic May be HEPATIC, NEUROLOGICAL or PSYCHIATRIC Liver - Asymptomatic with TRANSAMINASE ALT/AST ELEVATION - Acute Hepatitis - Acute-on-chronic Liver Failure - Cirrhosis - There will be COOMB's NEGATIVE HAEMOLYTIC ANAEMIA- with episodes of Low Grade Haemolysis and Jaundice Neurological - Akinetic-Rigidity like Parkinson's - Pseudosclerosis dominated by a Tremor - Ataxia - Dystonic Syndrome- which leads to Contractures Other findings- Drooling, Spasticity, Chorea, Athetosis, Myoclonus, Dysarthria, Dyslalia Psychiatric Abnormalities- Personality changes, Decreased Academic Performance, depression etc. Ocular Manifestations- Kayser-Fleischer ring and Sunflower Cataracts
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What investigations should be ordered in Wilson's Disease?
1) Serum Caeruloplasmin and Copper are usually LOW due to the Copper Deposits in Tissue (but they MAY be normal) 2) Urinary Copper is HIGH and a 24 hour urine collection is the INVESTIGATION of CHOICE !!!!!!3) Diagnosis is CONFIRMED by Genetic Analysis of ATP7B gene
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What is the management of Wilson's Disease? The pencil trident SXREENING in WILSON'S
1) D-Penicillamine and Trientine 2) Zinc Salts act as Inductors of Methallothioneins 3) SCREEN FIRST and SECOND DEGREE RELATIVES
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What is Zollinger-Ellison Syndrome?
It is the development of Severe Ulcerations in the stomach and duodenum due to the uncontrolled release of Gastrin from a Gastrinoma This usually occurs in the PANCREAS but can happen in the DUODENUM