Inflammatory Bowel Disease Flashcards
What are the features of ulcerative colitis?
Starts at rectum - bloody diarrhoea, urgency, tenesmus, abdominal pain (particularly LLQ), extra-intestinal features
What are the investigations for suspected IBD?
Faecal calprotectin - 90% sensitivity,
Anti-TTG and IgA (to exclude coaliac’s disease from differential list.)
FBC, U&Es, LFTs, CRP, TFTs.
Stool culture and microscopy to rule out infective cause.
Colonoscopy with multiple biopsies
What are the typical findings on colonoscopy and biopsy for UC?
Colonoscopy - raw mucosa, bleeds easily, limited to submucosa, psudopolyps due to widespread inflammation.
Biopsy - Inflammatory cell infiltrate, crypt abscess, depletion of goblet cells, NO granulomas.
What are the features of ulcerative colitis on a barium enema?
Loss of haustrations, superfical ulceration, pseudopolyps and drainpipe colon if disease is long standing
What are the conditions associated with ulcerative colitis?
Arthritis,
Erythema nodosum,
Episcleritis,
Osteoporosis,
Uveitis,
Pyoderma gangrenosum,
Clubbing
Primary sclerosing cholangitis
What are some factors which can lead to a flare of UC?
Stress,
Medications - NSAIDs/antibiotics,
Cessation of smoking
What is the classification of UC flares?
Mild - <4 stools per day with tiny amounts of blood.
Moderate - 4 to 6 stools per day and mild amount of blood but no systemic upset.
Severe - >6 stools per day, visible blood and systemic upset. Should be admited to hospital
What is the management of proctitis and proctosigmoiditis flares in UC?
- Topical ASA,
- If remission not achieved within 4 weeks then add oral aminosalicylate.
- If remission still not achieved then add topical/oral steroid.
- If steroids do not help then consider adding tacrolimus
What is the management of extensive flares in UC disease?
- Rectal aminosalicylate and a high dose oral aminosalicylate.
- If remission not achieved then add oral corticosteroid
What is the management of severe colitis?
- IV steroids in hospital (if contraindicated then use ciclosporin)
- After 72hr if no improvement then add IV ciclosporin or consider surgery
How can you maintain remission in proctitis/proctosigmoiditis in UC?
Topical aminosalicylate alone or with oral aminosalicylate.
How do you maintain remission in left-sided and extensive disease in UC?
Oral aminosalicylate
What medication should be added if UC patient has severe relapse of >2 exacerbations in a year?
Oral azathioprine or oral mercaptopurine
What are the clinical features of Crohn’s disease?
Weight loss and lethargy,
Diarrhoea (can be bloody),
Abdominal pain,
Perianal disease (ulcers or sikin tags)
Mouth ulcers
Extra-inteestinal features
What are the investigations for suspected Crohn’s disease?
Bloods - CRP, fecal calprotectin, FBC, UEs, LFTs, B12 and folate (due to terminal ileum affected)
Endoscopy and biopsy - Deep ulcers and skip lesions.
Small bowel enema