321 Diverticular Flashcards

Chapter 321. Diverticular disease and common anorectal disorder (40 cards)

1
Q

Saclike herniation of the entire bowel wall

A

True diverticulum

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2
Q

Protrusion of the mucosa and submucosa through the muscularis propria of the colon

A

Pseudodiverticulum

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3
Q

Part usually spared by diverticular disease

A

Rectum

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4
Q

Commonly affected sites of diverticular diseases

A

Left colon and sigmoid

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5
Q

In Asian populations, where are 79% of diverticula seen?

A

Right colon and cecum

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6
Q

Most common cause of hematochezia in patients more than 60 years old

A

Hemorrhage from colonic diverticulum

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7
Q

How many of patient with diverticular disease develop GI bleeding

A

20%

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8
Q

Characteristic of patient at increased risk for bleeding

A

Hypertensive
Atherosclerosis
Aspirin use
NSAID use

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9
Q

True or false. Most diverticular bleeds are self limited and stop spontenously with bowel rest

A

True

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10
Q

When will a patient with diverticular disease need surgery

A

6 units bleed in 24 hours and unstable vital signs

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11
Q

Surgery if bleeding has been defined

A

Segmental resection

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12
Q

Surgery if site of bleeding has not been definitely identified

A

Subtotal colectomy

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13
Q

Surgery if patient had no severe comorbidities

A

Surgical resection with primary anastomosis

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14
Q

When is higher anastomotic leak reported

A

In patients who receive more than 10 units of blood

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15
Q

What is the CT scan finding diagnostic of diverticular disease

A

Sigmoid diverticula, thickened colonic wall more than 4 mm and inflammation within the periodic fat with or without collection of contrast material or fluid

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16
Q

What defines complicated diverticular disease?

A

Diverticular disease associated with abscess or perforation

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17
Q

Hinchey classification of diverticular disease. Stage I

A

Stage I: perforated diverticulitis with confined paracolic abscess

18
Q

Hinchey classification of diverticular disease. Stage II

A

Stage II: perforated diverticulitis that has closed spontaneously with distant abscess formation

19
Q

Hinchey classification of diverticular disease. Stage III

A

Stage III: noncommunicating perforated diverticulitis with focal peritonitis

20
Q

Hinchey classification of diverticular disease. Stage IV

A

Stage IV: perforation and free communication with peritoneum, resulting in fecal peritonitis

21
Q

Common fistula formation in diverticular disease

A

Cutaneous, vaginal, vesicle fistulas

22
Q

Fistula common in women who has undergone hysterectomy

A

Colo vaginal fistula

23
Q

Recommended fiber per day in diverticular disease

A

30 grams fiber per day

24
Q

Recommend antibacterial coverage for diverticular disease

A

TMP SMX
Metronidazole
Ciprofloxacin
–cover aerobic gram Negative rods and anaerobic bacteria

25
Alternative single agent therapy
3rd generation penicillin: IV Piperacillin or oral penicillin/clavulanic acid
26
Probiotics found to be beneficial in diverticular disease
Lactobacillus acidophilus | Bifidobacterium
27
When is CT guided percutaneous drainage of diverticular abscess done
Abscess greatet than 3 cm and have well defined wall
28
What is the treatment of abscess less than 3 cm
Antibiotic therapy
29
How is Hinchey Stage III managed
Hartmanns procedure
30
True or false. Rectal prolapse is 6x more common in men than in women
False. Women > men
31
Test done if child has rectal prolapse
Sweat Chloride test
32
Comorbidity in 20% of children with rectal prolapse
Cystic fibrosis
33
Circumferential full thickness protrusion of the rectal wall through the anal orifice
Rectal prolapse (procidentia)
34
Conditions associated with rectal prolapse
Redundant sigmoid colon Pelvic laxity Deep rectovaginal septum
35
Pathophysiology of rectal prolapse
Damage to pudendal nerve from repeated stretching with straining to defecate
36
True or false. Unilateral pudendal nerve injury is more significantly associated with prolapse and incontinence than bilateral nerve injury
False. Bilateral > unilateral
37
Result of attempting to defecate against a closed pelvic floor
Animus
38
Mainstay treatment of rectal prolapse
Surgical correction
39
Involuntary passage of fecal material at least 1 month in an individual with a development age of at least 4 years
Fecal incontinence
40
Major cause of fecal incontinence
Obstetric injury to the pelvic floor