GI Flashcards

1
Q

What is boerhaave’s syndrome

A

Oesophageal wall rupture due to vomiting.

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2
Q

What area of the GIT does crohn’s affect

A

Anywhere from mouth to anus.

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3
Q

Syx of Crohn’s disease

A
Abdo pain
Loss of appetite 
Weight loss
Diarrhoea 
Passage of blood / mucus rectally
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4
Q

Most common cause of painless rectal bleeding

A

Haemorrhoids

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5
Q

Syx of an anal fissure

A

Streaks of blood on toilet paper

Pain on defecation

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6
Q

What is cholestyramine and what is it used for?

A

Bile acid sequestrant

Used in primary biliary cirrhosis

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7
Q

What is goodpastures syndrome

A

Anti-glomerular basement antibody disease

Leading to glomerulonephritis and lung haemorrhage

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8
Q

What is primary sclerosing cholangitis

A

Disease of bile ducts.

Progressive inflammation and fibrosis of intra and extra-hepatic bike ducts.

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9
Q

Symptoms of primary sclerosing cholangitis

A
Fatigue
Jaundice 
Pruritus 
Malabsorption + steatorrhoea 
Dark urine 
RUQ pain (hepatomegally)
Weightloss
Fever / rigors
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10
Q

Diagnosis of primary sclerosing cholangitis

A

Raised bilirubin
Raised alkaline phosphatase / GGT
Endoscopic retrograde cholangiopancreatography
80% have p-ANCA

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11
Q

What is Primary biliary cirrhosis

A

Chronic inflammatory liver disease
Progressive destruction of intrahepatic bile ducts
Probably autoimmune

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12
Q

Symptoms of Primary biliary cirrhosis

A
Pruritus 
Fatigue 
Weightloss
Arthralgia 
Jaundice 
RUQ pain (hepatomegally) 
Xanthelasma 
Hyperpigmentation
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13
Q

What is biliary colic

A
Severe RUQ/epigastic pain - radiate to scapula 
Related to cholecystitis and gallstones 
Lasts several hours 
May be precipitated by fatty meal 
\+/- n+v
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14
Q

What is cholangitis

A

Infection of the common bile duct

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15
Q

What is Wilson’s disease

A

Autosomal recessive condition leading to reduced biliary excretion of copper
Accumulates in liver and brain

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16
Q

Management of Wilson’s disease

A

Penicillamine = chelating agent

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17
Q

Symptoms of Wilson’s disease

A

Liver infiltration –> jaundice, easy bruising, variceal bleeding, encephalopathy
Neuro –> dyskinesia, rigidity, tremor, dysarthria, dementia, ataxia
Psych syx

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18
Q

Signs of hepatocellular carcinoma

A
Weightloss
Lymphadenopathy 
Nodular hepatomegally 
Jaundice 
Ascites 
(Liver bruit)
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19
Q

Signs of alcohol excess

A
Malnourished
Palmar erythema
Dupuytrens contracture
Facial telangiectasia
Parotid enlargement 
Spider naevi
Gynaecomastia 
Testicular atrophy 
Hepatomegally
Easy bruising
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20
Q

Symptoms of alcoholic hepatitis?

A
Mild illness
Nausea
Malaise
Epigastric or R hypochondrium pain
Low-grade fever
Jaundice
Ascites
Peripheral oedema
GI bleed
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21
Q

When do Kayser fleischer rings occur?

A

Wilsons disease

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22
Q

Clinical features of pancreatitis?

A
Epigastric pain radiating to the back
Nausea and vomiting
Previous episodes
Known gallstones
(Tachycardia, Hypotension)
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23
Q

Standard diagnostic test for pancreatitis?

A

Serum amylase

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24
Q

What is courvoisiers law?

A

In painless jaundice palpable gallbladder is unlikely to be gallstones

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25
What is a choledocholithiasis
Gallstone in the common bile duct
26
Risk factors for hepatocellular carcinoma?
Increasing age Male Hepatitis B Cirrhosis
27
Risk factors for developing acute cholangitis
Choledocholithiasis Biliary stricture Tumours ERCP
28
Treatment of acute cholangitis
Antibiotic | Remove cause
29
What is Charcots triad
Fever, jaundice and abdominal pain | Associated with acute cholangitis
30
What is the acute cholangitis
Bacterial infection in conjugation with obstruction of the biliary tree Commonly due to gallstones
31
Symptoms of acute cholangitis?
``` Epigastric pain Right upper quadrant pain Vomiting Fever Peritonism ```
32
What is Gilbert's syndrome?
Raised unconjugated bilirubin More marked in fasting or illness Autosomal recessive No long-term sequelae
33
Features of an amoebic liver abscess
Entamoeba histoltica 90% Are solitary Commonly involves right liver lobe Treated by aspiration
34
Types of pancreatic Cancer
``` 80% = adenocarcinoma Rest = adenosqamous And mucinous cystadenocarcinoma ``` 75% in head/neck of pancreas 15% in body 10% in tail
35
Symptoms of pancreatic cancer
Anorexia Weight loss Malaise Later jaundice and epigastric pain
36
Symptoms of acute pancreatitis
``` Severe epigastric pain radiating to the back Relieved by sitting forward Worse on movement Anorexia Nausea and vomiting ```
37
What is Cullens sign?
Discolouration around the umbilicus inpatients with acute pancreatitis
38
What is grey-turners sign?
Bruising of the flanks | Can occur in a severe attack of acute pancreatitis
39
Features of amoebiasis
Pain Bloody diarrhoea. Flask-shaped ulcers on colon PAS +ve trophozites + ingested RBC
40
Features of congenital toxoplasmosis
``` Jaundice Hepatomegally Hydrocephalus Choroidoretinitis necrosis of brain, liver, heart, lung, retina ```
41
Features of toxoplasmosis in adults
Sub clinical infection | Mild lymphadenopathy
42
Weightloss plus anaemia in a patient with a change in bowel habit and PR bleeding suggests what?
Colorectal carcinoma
43
Paroxysmal Flushing, wheezing, abdominal pain, diarrhoea and bronchospasm suggests what?
Carcinoid syndrome
44
What is a Hartman's procedure?
Primary resection of a lesion leaving a temporary colostomy and oversewing the rectum. For later re-anastomosis. Emergency procedure.
45
Complications of stomas
``` Fluid loss Odour Skin ulceration Leaking Stenosis Herniation Prolapse Ischaemia Psychosocial / sexual ```
46
Where do haustrae occur
Large bowel | Not full width
47
Where do valvulae coniventes occur?
Small bowel | Complete width
48
Symptoms of intestinal obstruction
Pain Vomiting Distension Absolute constipation - no flatus or faeces
49
Causes of bowel obstruction
``` Adhesions Hernias Tumours Gall stone ileus Sigmoid or caecal volvulus ```
50
Features of spontaneous bacterial peritonitis in a patient with ascites
``` Generalised abdominal pain Worsening ascites Vomiting Fever Rigor ```
51
Most common causative organisms in spontaneous bacterial peritonitis
E. coli | Klebsiella
52
Portal hypertension causes varices where
Oesophagus Rectum Umbilical veins
53
Management of Oesophageal variceal bleeding
Therapeutic endoscopy Banding or sclerosis of varices If unresponsive haemostasis is achieved with balloon tamponade = sengstaken-blakemore tube
54
Secondary prophylactic measures to reduce the risk of variceal rebleeding
Elective endoscopic variceal banding/sclerotherapy | Propranolol to reduce portal Venous pressure
55
Clinical features of hepatic encephalopathy
``` Reversed sleep pattern Asterixis Constructional apraxia Agitation Reduced consciousness Coma Death ```
56
Precipitants of hepatic encephalopathy
``` High protein diet Upper GI bleeding Hypokalaemia Alcohol Benzodiazepines Diuretics ```
57
Treatment of hepatic encephalopathy
Correct underlying cause Low protein diet nurse patient in light room Lactulose (osmotic laxative)
58
What is hepatorenal syndrome
Acute renal failure despite normal kidneys in a patient with cirrhosis and portal hypertension
59
What is the odynophagia
Pain on Swallowing
60
Symptoms of GORD
Heartburn regurgitation dysphagia (Atypical symptoms= Retrosternal chest pain, hoarseness, hiccups, ear pain, loss of dental enamel, night sweats, chronic wheeze, globus sensation, hypersalivation, halitosis)
61
Complications GORD
``` Oesophageal inflammation Erosions Ulceration Stricture Metaplasia of lower oesophagus (Barrett's oesophagus) ```
62
Management GORD
Lifestyle - Weight loss, smoking cessation, avoid late night meals, avoid spicy food, elevate head of bed Medical - Ranitidine (H2 antagonist), omeprazole (PPI), metoclopramide (Prokinetic) Surgical - fundoplication
63
Most common causes of small-bowel obstruction
Post-op adhesions Incarcerated hernia Malignancy Less common (diverticulitis, gallstone ileus, IBD)
64
What is familial adenomatous polyposis
Autosomal dominant Hundreds of adenomatous polyps in early adulthood Malignant transformation by age 50
65
What causes pseudomembranous colitis
Overgrowth of clostridium difficile Most occurs following antibiotic use Treatment is oral Metronidazole
66
Complications of diverticular disease
``` Diverticulitis Abscess formation Fistula Bleeding Perforation ```
67
Features of anorectal abscesses
Constant throbbing pain Discharge of pus per rectum Rectal lump/nodule
68
What type of stoma has a spout
Ileostomy
69
What is an end colostomy and when is it used
End colostomy is required after abdomino-perineal resection of a low rectal or anal canal tumour. It has a single opening. Usually found in the left iliac fossa - contents will be solid.
70
What is a Hartman's procedure and when is it used
Hartman's procedure is done after emergency resection of rectosigmoid lesions When primary anastomosis is unfavourable. The diseased segment is resected, the proximal end of bowel is made into an end colostomy. The distal segment of bowel / rectal stump, is oversewn to remain closed. Secretions from the rectal stump still pass through the anus. Later once inflammation settled the two ends are rejoined.
71
How can you tell the difference between Hartman's procedure and an AP resection
Digital rectal examination - AP. procedure leave no rectum
72
What is an end Ileostomy and when is it used
End ileostomy is an end stoma using distal ileum. Often created after resection of the colon and rectum, e.g for IBD. Ileostomies usually found in RIF Contents will be liquid. Once outside abdominal wall - small bowel is everted to create a spout to protect the abdominal wall skin from the irritation.
73
What is a defunctioning ileostomy and why is it used
Defunctioning ileostomy is a temporary stomas created to protect distal anastomosis at risk of leakage or breakdown. Allows bowel time to rest. Commonly used in difficult low rectal anastomoses and in emergency resections. Reversal of the temporary stoma at about 3-4 months.
74
What is a loop stoma and when is it used
Temporary stomas are usually loop stomas. E.g. Defunctioning stomas A loop of bowel is brought to the surface. The loop is supported by a 'bridge' beneath it (between bowel and skin) to prevent the loop slipping back in. The bridge is removed after a few days once wound healed. Bowel wall is partially cut to create two openings: an afferent limb and an efferent limb. The afferent limb leads to the functioning part of the bowel and allows stool and gas to pass out. The efferent limb leads into the non-functioning part of bowel and secretes mucus. This is the mucous stoma.
75
What is a urostomy and when is it used?
Urostomies are used for diversion of the urinary system. Used for bladder cancers, urinary incontinence not anemable to other treatments, and neuropathic bladders. Requires an ileal conduit = a segment of ileum open at 1 end + closed at the other. Ureters are implanted into this. The open end is used to create a spout similar to an ileostomy It allows urine collection in a stoma bag.
76
Classic presentation of acute pancreatitis
Epigastric pain Radiating to the back Hx of gallstones, alcohol
77
Causes of raised serum amylase in an acute abdomen
Acute pancreatitis Perforation Cholecystitis
78
What is murphy's sign
Place hand on RUQ and ask patient to breathe in. Causes pain as gallbladder contacts hand. --> arrest of inspiration. Repeat on LUQ. +ve = pain on RUQ palpation and not on L. Indicates acute cholecystitis
79
Presentation of small bowel obstruction
Early onset vomiting - bilious not faceculant Late onset distension Abdominal pain - colicky
80
Presentation of large bowel obstruction
Early onset distension Late onset vomiting - faeculant Abdominal pain - colicky
81
Presentation of a duodenal ulcer
Epigastic pain relieved by eating or milk | Worse at night
82
Presentation of a gastric ulcer
Epigastric pain worse on eating
83
RF for duodenal ulceration
H. Pylori | Chronic NSAID use
84
Classic presentation of appendicitis
Central colicky abdominal pain Shifts to RIF once peritoneum inflamed Rebound tenderness
85
Is it crohn's or UC that is transmural
Crohn's
86
Crohn's can occur anywhere from mouth to anus but which area does it favour
Terminal ileum
87
Surgical repair of a AAA is indicated at what diameter?
>5.5cm
88
Presentation of gastric carcinoma
``` Persistent dyspepsia Mass above L clavicle Weight loss Fatigue (anaemia) Ascites if advanced ```
89
Right sided colon cancers (caecum / ascending colon) commonly present with...
Weight loss Anaemia RIF mass
90
Left sided colon cancers (sigmoid / rectum) commonly present with...
Change in bowel habit | PR bleeding
91
In a patient >40yo presenting with features of acute appendicitis it is important to consider the diagnosis of....
Caecal carcinoma
92
Features of a pancreatic pseudocyst
Abdominal discomfort Nausea Early satiety Usually due to acute or chronic pancreatitis
110
Causes of a hard liver edge
Liver metastasis Hepatocellular carcinoma Conditions causing macronodular cirrhosis (Viral hepatitis B or C. Wilson's disease. Alpha-1-antitrypsin deficiency)
111
Presentation of haemochromatosis
``` Lethargy Arthralgia Features of chronic liver disease Bronze diabetes (Dilated cardiomyopathy) ```
112
Classical patient with haemochromatosis
Male | Middle aged
113
Inheritance of haemochromatosis
Type 1 = autosomal recessive Mutation of HFE gene Disorder of iron metabolism
114
Signs of chronic liver disease
``` Spider naevi Gynaecomastia Testicular atrophy Clubbing Leuconychia Dupuytrens contracture Palmar erythema Parotid enlargement ```
115
What is a green-ish brown ring at the corneo-scleral junction best seen with a slit lamp called. And when does it occur
Kaiser-fleischer ring | Pathognomonic of Wilson's disease
116
Management of Wilson's disease
Long term penicillamine | Copper-chelating agent
117
When is alkaline phosphatase raised
Biliary tract diseases
118
When is serum bilirubin raised
Hepatic and post hepatic disease
119
When are alanine transaminase and aspartate transaminase raised
Hepatocellular disease
120
When is alkaline phosphatase raised
Biliary tract diseases
121
When is serum bilirubin raised
Hepatic and post hepatic disease
122
When are alanine transaminase and aspartate transaminase raised
Hepatocellular disease
123
Features of crigler-Najjar syndrome
Congenital hyperbillirubinaemia Unconjugated jaundice Causes severe brain damage in early years
124
Intermittent RUQ pain exacerbated by fatty foods is likely to be due to...
Biliary tract obstruction | Commonly due to gallstones
125
Diagnostic test for Wilson's disease
Ceruloplasmin level (low)
126
Diagnostic test for hereditary haemochromatosis
Raised ferritin | Reduced total iron binding capacity
127
What antibody is commonly found in primary biliary cirrhosis?
Antimitochondrial antibody
128
Diagnostic tests for primary biliary cirrhosis
+ve for anti-mitochondrial antibody Hepatic USS ERCP
129
Management of primary biliary cirrhosis
Symptomatic relief Cholestyramine to treat pruritus ursodeoxycholic acid for ascites and jaundice Liver transplant (or death within 2 years of jaundice onset)
130
What may precipitate episodes of carcinoid syndrome
Stress Caffeine Alcohol
131
Management of proctitis in UC
Steroid foam enema | Mesalazine suppositories
132
Management of UC
- Aminosalicylates: - Mesalazine (= 1st line for induction + maintenance of remission in mild cases - topical then oral), olsalazine, balsalazide, sulfasalazine (more SE) - Corticosteroids: induce remission in relapses. No role in maintenance. Topical - suppository, liquid, foam enema. Oral or iv. - Thiopurines: - Azathioprine (if intolerant of steroids). - Ciclosporin: salvage therapy - severe refractory colitis. - Infliximab: effective in inducing remission in refractory to conventional treatment - Stool bulking agents: - distal transit is rapid but proximal transit is slowed --> proximal constipation.
133
Causes of pancreatitis
Gallstones Ethanol Trauma Steroids Mumps Autoimmune Scorpion / snake Hyperlipidaemia / hypercalcaemia / hypothyroidism ERCP / embolism Drugs (azathioprine, steroids, Thiazide diuretic, COCP) Pregnancy
134
What causes pain in pancreatitis
Autodigestion of the pancreas by trypsin. | Fat necrosis by lipases
135
Presentation of acute pancreatitis
``` Acute onset epigastric pain Radiates to the back Severe and constant Relieved by sitting forwards Nausea and vomiting Fever +/- Shock +/- Peritionitis ```
136
Intermittent RUQ pain exacerbated by fatty foods is likely to be due to...
Biliary tract obstruction | Commonly due to gallstones
142
What x-ray feature may suggest acute pancreatitis
Sentinel loop of small bowel on a-Xr Due to localised ileus
144
Symptoms of irritable bowel syndrome
Abdominal pain - relieved by defection Bloating Change in bowel habit (Diagnosis of exclusion)
145
What are gallstones made of
<10%-pure pigment (Bilirubin breakdown products) 75% - Cholesterol 15% - Mixed
146
What percent of gallstones are radiopaque
10%
147
Predisposing factors to gallstone formation
``` Female obesity Haemolytic anaemia Hyperlipidaemia Crohn's (Lithogenic bike - innate tendency to form stones) ```
148
Complications of gallstones
``` Chronic cholecystitis Biliary colic Acute cholecystitis (empyema/biliary peritonitis/abscess) Mucocele Gallbladder carcinoma Obstruction of the common bile duct --> jaundice Cholangitis Pancreatitis Gallstone ileus ```
149
Features of mesenteric ischaemia
Severe central abdominal pain that occurs soon after eating
153
Causes of pre-hepatic jaundice
Increased bile production- Haemolysis - hereditary spherocytosis - haemolytic transfusion reactions - thalassaemia - pernicious anaemia Gilbert's syndrome (underactive conjugating enzyme) Crigler-Najjar syndrome (rare autosomal recessive disorder of bilirubin metabolism)
154
Features of peutz-jeghers syndrome
Multiple blue-black Freckles around the lips nose oral mucosa and fingers. GI hamartomatous polyps (benign) Polyps predispose to GI bleeding and intussusception
155
Syx of diverticulitis
``` Central domino pain, localises to LIF Vomiting Diarrhoea Fever Local guarding Leucocytosis Risk of perforation or fistula formation ```
156
Hepatic causes of jaundice
- Viral hepatitis - A / B / leptospirosis / brucellosis / Coxiella burnetii/ glandular fever - Alcoholic hepatitis. - Autoimmune hepatitis - Drug-induced hepatitis: paracetamol, rifampicin, isoniazid, allopurinol, amitryptilline, amiodarone, phenytoin - Hepatotoxic chemicals: phosphorous, carbon tetrachloride, phenol. - Decompensated cirrhosis.
157
Is hepatic jaundice Unconjugated or conjugated
Mixed
158
What is the mechanism behind hepatic jaundice?
Impaired bile conjugation and excretion
164
Isolated hyperbilirubinaemia in an asymptomatic patient indicates what
Gilbert's syndrome
165
What is achalasia | + features
Progressive failure of relaxation of the lower oesophagus. Degeneration of the ganglia. Dilated, tortuous, hypertrophy of the oesophagus. Barium swallow shows a dilated tapering oesophagus
166
What is Zollinger-Ellison syndrome
Peptic ulceration secondary to gastric secreting adenoma (gastrinoma) in pancreas, stomach or small bowel.
167
What is glossitis + what causes it
Smooth, red, swollen, painful tongue Iron deficiency Folate deficiency B12 deficiency
168
What is a meckels diverticulum
Embryological remnant Variable length Usually ~5cm from the ileo-caecal valve
169
Symptoms of a meckels diverticulum
``` Asymptomatic Haemorrhage Intestinal obstruction Diverticulitis Perforation ```
170
What is diverticulosis
Presence of diverticulae | Without symptoms
171
What is Diverticular disease
diverticula with symptoms | E.g. Haemorrhage / infection / fistulae
172
What is Diverticulitis
Evidence of diverticular inflammation Lower quadrant pain h - fever, tachycardia
173
Management of rectal prolapse
``` If partial - excise redundant prolapsed mucosa If complete (involves muscle) - surgical lifting of prolapse. E.g. De lormes procedure ```
174
What is goodsalls rule?
Anterior anal fistulae track directly into the anal track - straight line. Posterior anal fistulae track around and open in the posterior midline = curved line
175
Managment of an anal fistula
If not through the puborectalis muscle - lay open the fistula track. If it goes through the puborectalis muscle you shouldn't lay it open as this damages the muscle + causes incontinence - insert a seton (non absorbable) and tie - gradually cuts through the muscle and allows it to heal by scarring
176
What is chaga's disease + it's symptoms
Parasitic disease from S America. Skin nodule @ site of inoculation Fever, anorexia, lymphadenopathy Long time later - dysphagia + cardiomyopathy
177
Where and what age are diverticula most common
Descending and sigmoid colon Elderly. Rare before 40
178
Long term complications post gastrectomy
Gastrectomy syndrome - rapid gastric emptying B12 deficiency Iron deficiency Osteoporosis (reduced calcium absorption)
179
Investigation of blood in stool
``` digital rectal examination Proctoscopy / sigmoidoscopy FBC Clotting studies LFTs if liver disease is suspected Colonoscopy ```
180
When to refer suspected bowel cancer
2 week wait for: - Rectal bleeding plus change of bowel habit for six weeks and are aged 40 years or older. - Palpable rectal or right-sided lower abdominal mass. - Iron-deficiency anaemia without any obvious cause Refer patients aged over 60 under 2 week rule if: - Rectal bleeding without anal symptoms for six weeks. - Change in bowel habit for six weeks without rectal bleeding.