GI Flashcards
List some negative prognostic factors of pancreatitis.
Over 55 hypocalcaemia Hyperglycaemia Hypoxia Neutrophilia increased LDH
How can a diagnosis of Pancreatitis be made?
Imaging USS or CT
Or clinical diagnosis + 3x increase in amylase or lipase
In Pancreatitis which is more specific Amylase or Lipase
Lipase - it also has a longer half life so can be used in delayed presentation.
How long must someone have been of PPI before having a urease breath test
2 weeks
How long must someone have not had antibiotics prior to a urease breath test?
4 weeks
What is used in the management of ascites?
Spironolactone
What is an indication for a Liver transplant in a paracetamol overdose?
pH <7.3 after 24 hours
HNPCC
Right sided colonic lesions
Less frequent polyps then found in FAP
What criteria must be met in order to be diagnosed with HNPCC?
3 relatives with HNPCC lesions
2 Succesive Generations
1 < 50 years old
Melanosis Coli
laxative abuse
Management of severe Campylobacter or someone who is immunosuppressed with mild symptoms
Clarithromycin
If someone is unable to tolerate a Colonoscopy in a suspected cancer what can be used?
CT
Once a diagnosis of Colon Cancer is given. What other investigations should be done?
CT Chest Abdo Pelvis - Staging
What is the imaging modality of choice in Rectal Carcinoma?
MRI or USS
In a perforated duodenal ulcer what artery is likely to have been affected?
Gastroduodenal artery
A serum Albumin Ascites Gradient of over 11 generally means what?
Portal Hypertension Cirrhoiss Liver failure Liver metastase Budd Chiari
A serum albumin ascites gradient SAAG <11 means what?
Nephrotic Malutrition Pancreatitis TB Peritoneal Carcinoma
Management of Ascites
Fluid restriction if Na ,125
Spironolactone +/- loop
Drainage + albumin cover
In uncontrolled variceal bleeding that has failed to respond to endoscopic banding what is the next treatment?
Sengotaken Blakemore Tube
Anti Emetics - 1,2,3
1 = H1 receptor antagonist Cyclizine -intracranial causes - brain tumours 2 = D2 receptor Antagonist Metaclopramide - Good for chemotherapy induced 3 = 5HT-3 receptor antagonist Odansetron - good for chemically mediated nausea
C.Diff - management
Oral vancomycin -> Oral Findaxomicin -> Oral Vancomycin + IV Metronidazole
C. Diff reinfection - management
<12 weeks - Oral Findaxomycin
>12 weeks - Oral vancomycin or findaxomycin
Ischaemic Colitis vs Mesenteric ischaemia
IC - Large bowel, less severe, transient - managed conservatively, NBM, thrombolysis
MI - Small bowel, Severe acute pain - surgical emergency
Investigations for Ischaemic colitis
Serum Lactate
X ray - thumbprinting
CT scan - gold standard
When is Ischaemic colitis managed surgically?
Failure of conservative methods
Perforation
Commonest site of ischaemia in the bowel?
Splenic flexture
Grading C.Diff
Mild - normal WBC
Moderate - WBC <15 + 3-5 stools
Severe - WBC >15 or temp >38.5
Life threatening - Hypotension, Megacolon, Ileus
When are azathioprine or mercaptopurine used in UC?
For remission if >2 admissions for UC in a year.
What is used in the secondary prevention of hepatic encephalopathy?
Lactulose
Rifaximin
Oesophageal cancer diagnoses
Endoscopic Biopsy
USS- localised staging
CT - staging
Oesophageal cancer diagnoses
Endoscopic Biopsy
USS- localised staging
CT - staging
Crohns Management
Flare up
Steroids -> 5ASA -> Azathioprine -> Infliximab
Maintain Remission
Stop smoking + Azathioprine or Mercaptopurine
What is used in spontaneous bacterial peritonitis prophylaxis management?
Co-Trimoxazole
Ciprofloxacin
Management of Dyspespia with no red flags
Medication review
Lifestyle changes
1 month PPI trial -> no improvement test for H.Pylori
or
Test for H.Pylori first -> if negative trial PPI
Hepatitis D
Co infects with Hepatitis B - same speed via bodily fluids
Superinfection - Chronic Hep B with a new acute Hep D = fulminant hepatitis cirrhosis
How is hepatitis D treated?
Interferron - not very successful
1-6 day incubation period
Headache malaise appendicitis like pain
Diarrhoea +/- blood
Campylobacter
Virchows node - left supraclavicular
Sister Mary Joseph nodule - periumbilical node
Gastric carcinoma
Gold standard imaging for Pancreatitis
CT with IV contrast
x- Ray will show some calcification
What can be used to work out exocrine function of the pancreas
Faecal elastase
How long does it take most people with chronic pancreatitis to develop diabetes?
20 years
H. Pylori - Management
1st line Amox + PPI + Metronidazole/Clarithromycin
- pen allergic - Clarithromycin + PPI + Metronidizaole
2nd line - PPI (BD) + Amoxicillin + Metronidazole/Clarithromycin ( one you didn’t use last time)
Perianal Fistula
Crohns
MRI is diagnostic investigation
Oral Metronidazole -> infliximab help close
Draining Seton for complex fistulae
Perianal Abscess
Incision and drainage is key management
Draining seton if tract is identified
Commonest cause of Hepatocellular carcinoma
Hep C in Europe
Hep B worldwide
What is the main risk factor for developing Hepatocellular carcinoma ?
Cirrhosis - hepatitis, alcohol, heamochromatosis
Signs and management of a hepatocellular carcinoma.
Late onset features - cirrhosis jaundice ascites RUQ pain
Raised AFP
Surgical excision if small -> radio frequency ablation -> embolisation -> liver transplant
Sweet focal smelling breath can indicate what?
Liver failure
Fetor Hepaticus
How can C.Diff appear on endoscopy?
Yellow plaques on wall
Pseudomembranous colitis
How are thrombosed haemorrhoids managed?
<72 hours since start - consider surgery
>72 hours since started - analgesia stool softener and ice pack
How are thrombosed haemorrhoids managed?
<72 hours since start - consider surgery
>72 hours since started - analgesia stool softener and ice pack
Middle aged woman AMA A2 +ve Anti smooth muscle antibodies +ve IgM increase Jaundice Fatigue pruritic RUQ pain
Primary Biliary Cholangitis
Management of PBC
Ursedeoxycholic acid - even in asymptomatic if LFTs show change use it
Cholestyramine - use for pruritis
Fat soluble vitamins supplements
Liver transplant - bilirubin > 100
What are the two types of haemorrhoids?
External - Below dentate line - painful and thrombose
Internal - above dentate line - painless
How do you classify haemorrhoids?
Type 1 - don’t prolapse
Type 2 - prolapse out but spontaneously reduce
Type 3 - prolapse out but need manually reducing
Type 4 - None reducible haemorrhoids
Management of non thrombosed haemorrhoids.
Stool softener -> topical anaesthetic + steroid
Outpatient clinic - Band ligation is better that scleropathy
Surgical - large symptomatic that haven’t responded to treatment.
Pain in duodenal ulcers
Worse on hunger
Relieved by eating
Globus + no red flags + occasional hoarse voice + Posterior pharynx erythema + cough + heartburn
Laryngopharyngeal reflux - silent reflux
Lifestyle advice + PPI + gaviscon
Younger woman Amenorrhoea Hepatitis picture - chronic or acute Raised IgG Piecemeal necrosis on biopsy
Autoimmune hepatits
Management of autoimmune hepatitis
Steroid + immunosuppression
Liver transplant
What antibodies may be positive in autoimmune hepatitis
ANA
Anti smooth muscle antibody
Hamartomatous Polyps in small Bowel - obstruction, intususseption, bleeding
Pigmented lesions on lips hands and feet
Peutz Jeghers syndrome
Conservative management only
Polyps don’t have malignant potential once formed, but increase cell turn over increases risk of cancer developing.
A positive psoas sign (pain on hip extension) in a query appendicitis may indicate what?
Retrocaecel appendix
Management of acute cholecystitis
IV antibiotics + analgesia +fluids + anti emetic
Laparoscopic cholecystectomy within a week
Ground glass cytoplasm in hepatocytes indicates what?
Chronic Hepatitis B
If someone has not eaten anything in over five days how should there nutrition be managed?
Start off with less than 50% of calories and protein.
What is first line for constipation in IBS?
Isphagula Husk
History of farming
Middle East
Increased eosinophils
USS shows daughter cysts
Hydatid cyst
Surgery to remove capsule whole
Why is a CT important if you aren’t certain on the diagnosis in liver cysts?
As rupturing the cyst, during USS guided biopsy, in a hydatid cyst can result in anaphylaxis.
What is the most commonly used indicator that an NG tube is placed correctly?
Aspirate pH is below 5.3
Obstructive defecation with a normal PR and barium enema.
History of childbirth
Rectal Intussusception
Defecating proctogram is imaging of choice
What is the most sensitive indicator of liver failure seen on bloods?
Thrombocytopenia
What management is sometimes used in children with a crohns flair up?
Enteral feeding with an elemental diet - avoid the side effects of steroids
Primary Sclerosing Cholangitits
Raised ALP and Bilirubin, RUQ pain, Fatigue
USS-> MRCP or if unable to tolerate MRCP i.e metal plates ERCP is diagnostic
Looking for a beaded appearance
Reasons for an urgent 2 week cancer referral.
> 40 + unexplained weight loss and abdominal pain
50 + unexplained rectal bleeding
60 + iron deficiency anaemia or change in bowel habits
FIT test
Screening 50-74 years every two years. Can be requested over 75
FIT test should be used if you are suspicious but they don’t meet the criteria for the 2 week cancer referral.
Diagnosis in acute IBD
Due to increased risk of perforation CT or flexible sigmoidoscopy is used ( no bowel prep)
Abdo and chest X ray needed swell
Acute Pancreatitis management
Aggressive fluid resuscitation Analgesia is opiods Nutrition - not Nil By Mouth - enteral nutrition if moderate or severe -> parenteral if needed Antibiotics - no prophylaxis is given
Budd Chiari - diagnosis
Sudden Abdominal pain + Ascites + Tender hepatosplenomegaly
USS doppler is first line
Investigation of choice in Boerhaaves
CT contrast swallow
Where is folate absorbed?
Duodenum and proximal jejunum
Where is B12 absorbed?
Distal Ileum
What is used to monitor someone at risk of developing Type 2 DM?
Yearly Hb1AC
Management of pancreatic pseudocyst
Conservative is first line
Endoscopic or open surgery if - infected, mass effect, >12 week duration
Management of sterile pancreatic necrosis
Conservative
Drug Induced Pancreatitis
FATSHEEP
Furosemide Azathioprine Thiazide/Tetracyline Statins Sulphonamides Sodium Valproate Hydrochlorothian Estrogen Ethanol Protease inhibitors
Why should B12 be given before folate in someone who is deficient?
As giving it the other way around can trigger subacute combined degeneration of the spinal chord
Progressive renal failure in those with liver cirrhosis - generally triggered by an acute event i.e variceal bleed.
Hepatorenal syndrome
Type 1 = rapidly progressive <2 weeks - very poor prognosis
Type 2 = Slowly progressive >2 weeks - poor prognosis
Ascites Jaundice AKI No proteinuria or haematuria Hx of liver cirrhosis
Hepatorenal syndrome
Management of hepatorenal syndrome
Management - terlipressin and volume expansion with 20% albumin
Liver transplant - usually to ill to undergo the surgery
Small Bowel Overgrowth Syndrome - managment
Rifaximin
What is the characteristic sign of a pancreatic cancer on CT or USS
Double Duct sign
Both ducts are dilated
What criteria make it a severe UC flair up?
> 37.8 degrees
90bpm
anaemia <105
ESR >30
Long term management of pernicious anaemia
life long replacement with Cobalamin (B12)
Prophylaxis in ascites
Oral Ciprofloxacin or Norfloxacin
SAAG <15
1 episode of SBP
Hepatorenal syndrome
Chronic ascites
Restrict dietary sodium
Repeat therapeutic ascitic drains
Pigmented gallstones could indicate what?
Increased haemolysis i.e sickle cell G6PD etc
Indications for dialysis in a patient with a high urea
Encephalitis - signs of confusion reduced consciousness etc
Uraemic pericarditis
Genes associated with FAP and HNPCC
FAP - APC
HNPCC - MSH2 MLH1
Sigmoid Volvulus Management
Flexible sigmoidoscopy + rectal tube insertion
Laparoscopy if peritonitis or failure of sigmoidoscopy
Caecal Volvulus
Any age - link to adhesions and pregnancy
Presents with small bowel obstruction
Surgical management - right hemicolectomy
Autoimmune hepatitis
Type 1 - IgG increased
Type 2 - IgG increased IgA decreased + children only
Salmonella incubation time
12-48 hours
Shigella incubation time
48-72 hours
Campylobacter incubation time
48-72 hours
Amoebesis incubation time
Long incubation time
Profuse bloody diarrhoea
Trophozotes
Modified Glasgow Score - negative prognosis for pancreatitis
Pa02 < 8 Age >55 Neutrophilia >15 WCC Calcium <2 Renal urea >16 Elevated liver enzyme - AST >200 LDH >600 Albumin <32 Sugar >10
PANCREAS
When testing someones Anti TTG if they are deficient in IgA what is the next test that should be used?
IgG Anti TTG
Management of barrets oesophagus
PPI
Plus endoscopic monitoring every 3-5 years
2 week referral to oral surgery
Unexplained oral ulceration >3 weeks
Unexplained one sided pain within head + ear ache + > 4weeks + normal otoscopy
Unexplained persistent or sore throat.
Management of diverticulitis
Home with oral antibiotics -> A and E if no improvement in 3 days
IV ceftriaxone + metronidazole in hospital
Management of UC - proctitis and proctosigmoiditis
Topical ASA -> oral prednisolone -> Tacrolimus after 2 weeks if no improvement
Management of UC - left sided or extensive
High dose oral ASA -> prednisolone -> tacrolimus if no improvement after 2 weeks
Management of UC - Severe
IV corticosteroid -> 72 hours no change = IV ciclosporin or surgery or infliximab
In a GI bleed due to a peptic ulcer what is required once treatment has been started?
6-8 week endoscopy to ensure healing is occurring
Indications for an inpatient alcohol withdrawal.
>30 units a day Previous seizures, epilepsy, DT Medical or psych co morbidities Vulnerable <18