3- surgical therapies for IBD Flashcards

1
Q

what are elective operations in IBD?

A

= planned, on waiting list

  • crohn’s resection, strictureplasty = amending shape of bowel (less common), fistulas, anal disease
  • ulcerative colitis - proctocolectomy
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2
Q

what is ileostomy?

A

when have stoma due to ileum cut and poking out abdomen wall into bag - it looks like closed rose
(loop ileostomy can be done to protect more distal ileostomosis as stuff coming out nasty and burns)

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3
Q

what is colostomy?

A

when have stoma due to ileum cut and poking out abdomen wall into bag - looks like opened up rose, more soft than ileostomy, flatter

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4
Q

where is
a) colostomy stoma
b) ileostomy stoma
and what goes into stoma from each?

A

a) usually on left = get just poo in bag
b) usually on right = get small bowel content

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5
Q

when do you do elective surgery for ulcerative colitis?

A

when:

  • failed on medical therapy (medically unresponsive disease or allergy etc)
  • intolerability
  • dysplasia/malignancy →after a long time in UC
  • growth retardation in children
  • attempted resolution of extra-intestinal disease e.g. PBC - gets better after colon out (rare)
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6
Q

what is ulcerative colitis pouching procedure?

A

when young people don’t want stoma - colon + rectum removed and small intestine (ileum) is made into pouch for reservoir of stool and anastomosed to anus
- can be W, S or J pouch

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7
Q

what is negatives with pouching procedure for ulcerative colitis?

A

with normal rectum you can tell if has poo or gas and consistency/urgency etc but since no rectum you can’t tell so average pouch empties 5 or 6 times a day and then 2 at night (might be more likely to have accidents) →this can mean a bit more like having disease back

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8
Q

what are immediate complications for pouching of ulcerative colitis? (local and systemic)

A

local = haemorrhage, enterotomy
systemic = anaphylaxis

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9
Q

what are early complications for pouching of ulcerative colitis? (local and systemic)

A

local = urinary dysfunction, wound infection, pelvic abscess, anastomotic leak
systemic = atelectasis, ileus, portal vein thrombosis

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10
Q

what are late complications for pouching of ulcerative colitis? (local and systemic)

A

local = impotence, infertility, pouchitis (big impact on sexual function - impact on orgasms and ability to conceive)
systemic = DVT/PE and small bowel obstruction

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11
Q

what is peritonitis?

A

is bacteria leaks into abdomen (serious complication of bowel surgeries)

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12
Q

what percentage of severe ulcerative colitis flares lead to colectomy?

A

50%

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13
Q

what are Truelove and Witt criteria?

A

assess disease severity, helps monitor progress of patients (getting better or not)

→number of stools important part but lots of criteria

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14
Q

what is subtotal colectomy?

A

= first aid operation when UC flare up - the colon is removed but rectum left at first when super inflamed

  • when acutely inflamed, the bowel wall is very inflamed and thick so impossible to deal with rectum safely without dealing nerves
  • if rectum dead looking then do mucous fistula (rare where rectum directed to skin surface to allow drainage of mucous secretions) →usually just staple and left but this is very risky as can leak and cause even more infection so tend to leave drain for first few days
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15
Q

what can happen with rectum once subtotal colectomy?

A

once rectum calmed down, often does after colon removed as less stress on it you can then discuss fate of rectum →sometimes can leave alone just having regular check for dysplasia (good to have rectum means little medication)

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16
Q

what is toxic megacolon?

A

= when swelling in ulcerative colitis get extensive and could rupture so decompression required before perforation

  • can cause sepsis, pain and distension
17
Q

how can you tell on x-ray if perforated bowel?

A

you should only see gas line on one edge - if see 2 edges then something wrong and gas outside

18
Q

what medication are crohn’s patients on that makes surgery tricky?

A

immunosuppression

19
Q

what is likelihood of another surgery after one surgery?

A

half of patients who have 1 crohn’s surgery will have another in next 10 years

20
Q

when do you need surgery in crohn’s (long list)?

A
  • stenosis causing obstruction (of small bowel, recurrent vomiting, food fear, permanent distension)
  • enterocutaneous fistulas (hole in small bowel fistulating out through skin)
  • intra-abdominal fistulas (usually not too bad)
  • abscesses
  • bleeding (rarer - usually settles alon)
  • free perforation (rare because of better drugs)
  • remove terminal ileum (main reason for surgery) →especially during covid, people were scared to be immunosuppressed
21
Q

what is operation for gastroduodenal crohn’s?

A

= very rare

  • usually do bypass operation, gastrojejunostomy, so bypass without taking out as pancreas and bile duct
22
Q

what is strictureplasty for ileocolic disease?

A

cut longitudinally and close perpendicularly to widen flow through bowel →good for when patients have multiple strictures and don’t want to rescet (if lose too much need parenteral nutrition)

23
Q

what is fistula?

A

abnormal communication between 2 areas (like earring)

24
Q

what are types of fistulas in abdomen?

A
  • enterocutaneous = abnormal connection between intestines + skin surface so contents come out of skin
  • intra-abdominal = abnormal connection between 2 structures within abdominal cavity
25
Q

what is mnemonic treatment for fistulas in crohn’s?

A

SNAP treatment

s = sepsis →need to address this (by antibiotics etc)
n = nutrition, PTN
a = anatomy →understanding where helps plan treatment (do scans)
p = plan/prolonged hospital stay

26
Q

what are colonic surgeries for crohn’s?

A
  • emergency colectomy = remove entire colon
  • segmental = removing only diseased portion of colon
  • total colectomy = remove entire colon
  • panproctocolectomy = remove entire colon, rectum & anus (rectum then stitched up)
  • pouches (controversial for crohn’s - none in uk, lots in us)
27
Q

what are different types of perianal disease?

A
  • primary lesions (fissure, ulcer)
  • secondary lesions (abscesses, tags, fistula)
  • incidental lesions (piles, hidradenitis)
28
Q

what is aim of fistula treatment in crohn’s?

A

= aim to control rather than cure

  • put seton in = a piece of surgical thread that’s left in the fistula for several weeks to keep it open. This allows it to drain and helps it heal