Ch. 333.3 - Intussusception Flashcards Preview

Nelson - The Digestive System > Ch. 333.3 - Intussusception > Flashcards

Flashcards in Ch. 333.3 - Intussusception Deck (31):
1

MCC of intestinal obstruction between 5 months and 3 years of age

Intussusception

2

MC abdominal emergency in children younger than 2yo

Intussusception

3

Many ___ and few ___ intussusceptions reduce spontaneously

Small bowel-small bowel; small bowel-colonic

4

Intussusception in infants 1 yr old or younger has been associated with ___ vaccine

Tetravalent rhesus-human reassortment rotavirus vaccine

5

T/F Recognizable lead points for intussusception are found in majority of affected patients

F, only 2-8%

6

Intussusception lead points are more common in what age group

> 2y/o and adults (90%)

7

Post operative intussusception is what type

Ileoileal

8

Type of intussusception associated with HSP

Ileal-ileal

9

MC type of intussusception

Ileocolic

10

T/F Most intussusceptions do not strangulate the bowel within the first 24 hours

T

11

Lethargy disproportionate to abdominal signs

Intussusception

12

Currant jelly stool is passed in 60% of patients with what condition

Intussusception

13

Classic triad of intussusception

1) Palpable sausage-shaped mass 2) Bloody or currant jelly stool 3) Pain

14

Combination of these 3 signs has a positive predictive value of >90% for intussusception

1) Paroxysmal pain 2) Vomiting 3) Palpable mass

15

MC location of sausage-shaped mass in intussusception

RUQ

16

Configuration of long axis of sausage-shaped mass of intussusception if it is in the RUQ

Cephalocaudal

17

Configuration of long axis of sausage-shaped mass of intussusception if it is in the epigastrium

Transverse

18

T/F Ileoileal intussusception in children less than 2 y/o presents chiefly with signs of small intestinal obstruction and resolves without treatment

T

19

T/F Recurrent intussusception is seen more commonly after hydrostatic than surgical reduction

T

20

Appearance of intussuception on UTZ

Tubular mass in the longitudinal view and doughnut or target appearance in the transverse view

21

Ultrasound has a sensitivity and specificity of __ and ___ for intussusception

98-100, 98

22

Positive test for intussusception by contrast enema

Filling defect or cupping in the head of the contrast media, or coiled-spring sign

23

Hydrostatic vs air reduction for intus: Fewer complications and lower radiation exposure

Air reduction

24

An ileoileal intussusception is best demonstrated by

UTZ

25

T/F Untreated intus in infants is usually fatal

T

26

Most infants with intussusception recover if it is reduced within

First 24 hrs

27

Recurrence rate of intussusception after reduction

10%

28

Recurrence rate of intussusception after surgical reduction

2-5%

29

Most recurrences of intussusception occur within ___ of reduction

72 hrs

30

Drug that may reduce frequency of recurrent intus

Corticosteroids

31

Repeated reducible episodes of intus caused by lymphonodular hyperplasia may respond to

Treatment of identifiable food allergies if present