Gastro, Hepatobiliary, Surgery Flashcards
What is the epithelium lining for the oesophagus? The stomach?
Oesophagus: stratified squamous
Stomach: columnar
Symptoms of dyspepsia?
Heartburn
Acid regurgitation
Retrosternal pain
Hoarse voice
Bloating
Red flag symtoms for GORD?
DYSPHAGIA of any kind, any age
Symptoms at >55
Anaemia
Weight loss
Anorexia
Recent onset
Malaena/haematemesis
Conservative management for GORD?
Conservative:
Avoid alcohol, spicy foods
Weight loss
Stop smoking
Stay upright after eating
Smaller, lighter meals
Medical management for GORD?
Gaviscon/Rennie to neutralise acid
PPIs
Ranitidine (H2 antagonist) if PPI not tolerated
Surgical management of GORD?
Laparoscopic fundoplication
Tests for H pylori?
Urea breath test (drink radiolabelled C13)
Stool antigen test
CLO test (endoscopy and biopsy)
1st line treatment for H pylori? Duration?
triple therapy: omeprazole, amoxicillin, clarithromycin for 7 days
Treatment for H pylori if 1st line is ineffective after 4-8 weeks?
Omeprazole, amoxicillin, metronidazole
Treatment for H pylori if penicillin allergy?
Omeprazole, metronidazole, clarithromycin
When is retesting for H pylori done? Which test is used?
4-8 weeks after by urea breath test
Strongest risk factor for Barretts?
GORD
Treatment for Barretts?
-PPI
-ANY kind of dysplasia is treated endoscopically (mucosal resection/radiofrequency ablation)
What is the management of dyspepsia symptoms?
One of:
1. Full dose PPI 1 month
- Test for H pylori and treat if positive.
If symptoms persist, do the other option
What core symptoms must be present for diagnosis of IBS? For how long?
ABC:
Abdominal pain, bloating, change in bowel habit.
For at least 6 months
Other symptoms of IBS?
- Change in stool passage (straining, urgency, incomplete evacuation)
- Abdo pain relieved by defecation
- Passage of mucus
What other tests must be done before diagnosing IBS?
- Anti tTG
- Faecal calprotectin
Conservative management for IBS?
- exercise
- good diet (fluid, small regular meals, reduced processed food, reduce caffeine and alcohol, avoid triggers)
Medical management for IBS?
-Loperamide for diarrhoea
-Laxatives for constipation (avoid lactulose –> bloating)
-TCA 2nd line
-SSRI 3rd line
Peak incidence of ulcerative colitis?
15-25 and 55-65
Most common site of inflammation in UC?
Rectum
Symptoms of UC?
-Bloody diarrhoea
-Tenesmus
-Abdominal pain in LLQ
-Fever, malaise, weight loss, anorexia
Extra-intestinal signs of UC?
-Erythema nodosum
-Pyoderma gangrenosum
-Uveitis
-Large joint arthritis/AS
-PRIMARY SCLEROSING CHOLANGITIS
What imaging is done for UC? How does this change for those with severe UC?
-Colonoscopy and biopsy. If severe, flexible sigmoidoscopy
-Barium enema shows loss of haustration
-AXR shows lead pipe appearance
Medication to induce remission in UC? How does induction change in severe UC?
-Topical/oral 5ASA
-Topical/oral steroid
Step up as required, with topical then oral
If severe,
-Admit for IV steroids
-IV ciclosporin if not responding
What do you give if there are >2 exacerbations of UC in 1 year?
Oral azathioprine
What to give to maintain remission of UC?
topical +-/ oral 5ASA
Features of UC (U C CLOSEUP)?
-Continuous inflammation
-Limited to rectum and colon (up to ileocaecal valve)
-Only superficial mucosa affected
-Smoking protective
-Excrete blood + mucus
-Use aminosalicylates
-PSC
Symptoms of CD?
-Diarrhoea most common +/- blood
-Abdo pain
-Perianal disease
-Systemic unwellness
-Cobblestone appearance of gut
Extra-intestinal symptoms of CD?
-Erythema nodosum
-Pyoderma gangrenosum
-Apthous ulcers
-Episcleritis
-Large joint arthritis
What is seen on biopsy in UC vs CD?
UC: inflammation up to submucosa, crypt abscess
CD: transmural inflammation, goblet cells, granulomas
What is seen on enema of CD?
-Kantor string sign - strictures in terminal ileum
-Proximal bowel dilation
-Rose thorn ulcer (contrast highlights ulcers that poke deep into bowel wall like a rose thorn)
Important lifestyle change for CD?
Stop smoking
What is used to induce remission in CD?
Glucocorticoids
What is used to maintain remission in CD?
Azathioprine
Methotrexate 2nd line
Features of CD? (NESTS)
No blood mucus
Entire GI tract
Skip lesions on endoscopy
Terminal ileum most affected/transmural inflammation
Smoking risk factor
2 most common causes of peptic ulcers?
H pylori
NSAIDs/steroids
Treatment for confirmed peptic ulcer?
Full dose PPI for 4-8 weeks
H pylori eradication if positive
Follow up after treatment gastric ulcers? Duodenal ulcers?
Gastric: endoscopy 6-8 weeks after PPI to check healing and malignancy
Duodenal: no endoscopy needed
Presentation of upper GI bleed?
Haematemesis
Melaena
Signs of hypovolaemic shock
What is seen on blood test in upper GI bleed?
Raised urea
Scoring systems used to assess risk of upper GI bleed?
Glasgow Blatchford before endoscopy
Rockall score after endoscopy for rebleeding
Management of upper GI bleed? (ABATED)
ABCDE
Bloods
Access (2 large bore)
Transfuse (FFP/platelets/prothrombin)
Endoscopy (OGD)
Drugs (stop anticoagulants/NSAIDs)
Recommended alcohol intake per week?
14 units weekly men and women
Signs of liver disease?
-Jaundice
-Ascites
-Varices (oesophageal, rectal)
-Caput medusae
-Spider naevi
-Encephalopathy
-Palmar erythema
-Asterixis
-Bruising
-Gynaecomastia
Pattern of LFTs in alcoholic liver disease?
AST and ALT raised (AST:ALT >3)
-GGT raised
-Low albumin
-Raised PT
Imaging done in alcoholic liver disease?
US - increased echogenicity, cirrhotic changes, Fibroscan
Endoscopy - assess and treat oesophageal varices
CT/MRI - fatty infiltration, HCC, organomegaly, ascites
Liver biopsy - can confirm diagnosis
Management of alcoholic liver disease?
-Stop drinking
-Detox regime + thiamine
-High protein, low salt diet
-Steroids improve short term outcomes
-Treat complications of cirrhosis
Incidence of Coeliac?
1%
Which antibodies are associated with Coeliacs?
anti TTG
anti EMA
Which part of the bowel is most affected by Coeliacs?
Jejunum
Which HLA types are most associated with Coeliacs?
HLADR2 and HLADR8
Presentation of Coeliacs?
-Failure to thrive
-Abdominal pain
-Foul smelling diarrhoea difficult to flush
-Weight loss
-Fatigue
-Iron deficient anaemia
Complications that can occur from Coeliacs?
-Anaemia
-Osteoporosis
-Hyposplenism
-Lactose intolerance
-T cell lymphoma of small intestine if continuing to eat gluten
-GI malignancy
What tests for Coeliac? What must the patient do prior to testing?
Patient must be eating gluten for at least 6 week to prove presence of inflammation
-Total IgA levels
-Specific coeliac antibodies (anti TTG, anti EMA)
-Endoscopy with intestinal biopsy is gold standard (crypt hyperplasia, villous atrophy, intraepithelial lymphocytosis)
Management of Coeliac?
Gluten free diet
Offer pneumococcal vaccine if hyposplenism
Causes of liver cirrhosis?
NAFLD
Alcoholic liver disease
Hepatitis B and C
Blood results in someone with liver cirrhosis?
-LFTs all deranged
-Low albumin and prolonged PT
-Hyponatraemia in fluid retention (Ascites)
-Urea and creatinine raised in hepatorenal syndrome
-AFP used to screen for HCC
-ELF test in NAFLD
What might US show in liver cirrhosis?
-Nodular liver surface
-Corkscrew appearance of arteries that have increased flow
-Enlarged portal vein with reduced flow
-Ascites
-Organomegaly
What scoring system is used to assess severity and prognosis of liver cirrhosis?
Child-Pugh score
What scoring system is used to assess for mortality in those with compensated cirrhosis?
MELD score
Management of liver cirrhosis?
-US and AFP every 6 months for HCC
-Endoscopy if varices
-High protein, low sodium diet
-MELD score 6 monthly
Complications of liver cirrhosis?
-Malnutrition
-Ascites
-Varices
-Hepatic encephalopathy
-Spontaneous bacterial peritonitis
-Hepatorenal syndrome
What is SAAG and how is it calculated
Serum Ascites Albumin Gradient helps to clarify the cause of ascites.
serum albumin conc - ascites albumin conc
High SAAG (raised portal pressure)
Low SAAG (cancer, infection)
What criteria diagnoses SBP?
Neutrophils in ascitic fluid >250cells/microlitre
Most common cause of SBP? Treatment?
E.coli
Cefotaxime
What is seen on bloods in hepatorenal syndrome?
Raised urea and creatinine
What is given to treat hepatic encephalopathy?
Lactulose to remove ammonia
Rifaximin to kill bacteria that creates ammonia
How does hepatorenal syndrome occur?
Dilation of portal vessels reduces blood flow to other areas. In kidneys, reduction of blood flow causes RAAS. There is vasoconstriction leading to further reduction in blood flow to kidneys, resulting in rapid deterioration in kidney function
Risk factors for NAFLD?
NAFLD is part of the metabolic syndrome, so risk factors:
-OBESITY
-Hyperlipidaemia
-T2DM
-Smoking
-Hypertension
What is shown on US of NAFLD?
-Hepatomegaly
-Increased echogenicity
Pattern of LFTs in NAFLD?
ALT > AST (opposite of alcoholic liver disease)
Management of NAFLD?
Lifestyle changes and monitoring
-Stop smoking
-Exercise/weight loss
-Control diabetes, BP, cholesterol
-Avoid alcohol