Pediatric GI dis [3] Flashcards Preview

DEMS Unit 1 > Pediatric GI dis [3] > Flashcards

Flashcards in Pediatric GI dis [3] Deck (8):
1

Meckel diverticulum

Rule of 2:
affects 2% of population
symp at age 2
occurs 2 cm from ileocecal jxn (distal sm int)

This is an abnormal remnant of vitelline (omphalomesenteric) duct
- cnxn btwn yolk sac and intestine
- OUTPOUCHING OF THE INTESTINE but doesnt attach to the abdominal wall

2

Omphalocele

associated with advanced maternal age
Failure of intestine to return to abdomen following physiologic herniation at 6-10 weeks of dev.
(comes out of amniotic sac while liver enlarges)

3

Gastroschisis

paraumbilical abdominal wall defect (rectus m, not umbil) → no amniotic covering and no associated malformations

4

Which type of intestinal atresia is most common, and what is it assoc. with?

atresia: orifice/passage abnormally closed/absent

Duodenal atresia most common. 40% have Down syndrome.

5

Patho and presentation of intestinal atresia

possible vascular ischemic etiology

present: polyhydraminos, obstructive symptoms (bilious vomiting)

6

Hirschsprung disease
what
who
test/presentation

defect of Enteric nervous system (ENS) development resulting in ABSENCE OF GANGLION CELLS

4M:1F

Failure to pass meconium/poor stooling → MEGACOLON

(normal development of ENS begins in mediastiunum, but in Hirsh, it is unable to make it to distal colon)

7

Neonatal necrotizing enterocolitis
presentation
tx

Premies
Feeding intolerance
abdominal distention
bloody stools

bowel rest, antibiotics, surgical resection

8

Reflux vs Allergic esophagitis
Incompetent GE sphincter/hiatal hernia -
pH probe negative -
Histo: MILD intraepithelial eosinophilic infiltrate -
Predominantly distal and proximal esophageal involvement -
Tx: dietary mod + steroids -

Incompetent GE sphincter/hiatal hernia - reflux
pH probe negative - allergic
Histo: MILD intraepithelial eosinophilic infiltrate - reflux
Predominantly distal and proximal esophageal involvement -allergic (reflux is distal only)
Tx: dietary mod + steroids - allergic (reflux is acid block)