ULCERATIVE COLITIS Flashcards

1
Q

Ulcerative colitis

A

Can affect the region from the rectum to the whole colon

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2
Q

Symptoms

A

bloody diarrhoea
defecation urgency abdominal pain

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3
Q

May lead to complications such as:

A

Colorectal cancer
Secondary osteoporosis
Venous thromboembolism
Toxic megacolon

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4
Q

Most common in

A

15-25 yo

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5
Q

Types of UC

A

increased inflammation:
Proctitis - rectum
Proctosigmoiditis - rectum + sigmoid colon
Distal/left sided - colon distal to the splenic flexure
Extensive colitis - colon proximal to the splenic flexure
Pacholitis - whole colon

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6
Q

Difference between UC and CD

A

UC has a continuous pattern, CD is patchy

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7
Q

Treatment - Acute (mild - moderate) DISTAL general

A

Rectal preparation (suppositories or enemas)
* Foam preparations used if patient has difficulty retaining liquid enema

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8
Q

Treatment - Acute (mild - moderate) EXTENDED general

A

Systemic medication needed

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9
Q

Diarrhoea treatment

A

Avoid loperamide or codeine as this can cause toxic megacolon
* Only to be initiated under specialist advice

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10
Q

Toxic megacolon

A

Widespread infection
Slows down gastric emptying
Build up in colon

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11
Q

Treatment - acute (mild to moderate) PROCTITIS

A
  1. Topical aminosalicylate
  2. no improvement 4 weeks = add PO aminosalicylate
  3. Inadequate response = add PO/T CS (4-8 weeks)

Alt to topical aminosalicylate
1. PO aminosalicylate
2. Inadequate response = add PO/T CS (4-8 weeks)

Alt to PO aminosalicylate
1. PO/T CS (4-8 weeks)

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12
Q

Treatment - acute (mild to moderate) PROCTOSIGMOIDITIS + LEFT SIDED UC

A
  1. topical aminosalicylate
  2. no improvement after 4 weeks = add high dose PO aminosalicylate (alternative = switch to high dose PO aminosalicylate + 4-8 weeks of topical CS)
  3. Inadequate response = Stop topical treatment and offer PO aminosalicylate + 4-8 weeks of PO CS
    Alt=
    Monotherapy with a high-dose oral aminosalicylate (may not be as effective)
    No improvement after 4 weeks = add PO CS for 4 to 8 weeks
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13
Q

Treatment - acute (mild to moderate) EXTENSIVE

A
  1. topical + high dose PO aminosalicylate
  2. No improvement after 4 weeks = stop topical and offer high dose PO aminosalicylate + PO CS for 4-8 weeks

if aminosalicylate CI - PO CS for 4-8 weeks

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14
Q

Treatment - acute (severe)

A

Life-threatening
MEDICAL EMERGENCY
* IV hydrocortisone or methylprednisolone and assess for need of surgery
* If IV steroids CI → use IV ciclosporin or surgery

  1. No improvement in 72 hours → IV steroid + IV ciclosporin (infliximab) or surgery
  2. Surgery
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15
Q

Treatment - maintenance

A
  • Oral aminosalicylates recommended
  • CS not suitable due to side-effects
  • More effective as once daily dose - however may cause more side-effects
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16
Q

Proctitis or proctosigmoiditis: maintenance

A
  • PR +/- PO aminosalicylates
  • PO can be given alone if PR is not wanted
17
Q

Left-sided or extensive: maintenance

A

Low dose PO aminosalicylate

18
Q

> 2+ Flares in 12-months:

A

PO azathioprine or mercaptopurine
Give monoclonal antibodies if no effect

19
Q

Aminosalicylates - examples

A

Sulfasalazine Balsalazide Mesalazine Olsalazine

20
Q

Aminosalicylates - side effects

A

Nephrotoxic: monitor before initiation, at 3 months, then annually
Hepatotoxic: monitor at monthly intervals for first 3 months
Blood disorders: monitor at monthly intervals for first 3 months
Sulfasalazine: stains contact lenses orangey-yellow
Colour change
Renal impairment
Oligozoospermia
Hypersensitivity reactions
Neutropenia/blood dyscrasias
Skin reactions

21
Q

Aminosalicylates - CI

A

salicylate hypersensitivity

22
Q

Aminosalicylates - blood dyscrasia

A

Perform blood count and stop drug immediately if signs of a blood dyscrasia

o patients advised to report: unexplained bleeding; bruising; sore throat; fever