Intussusception: Difference between revisions
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*Imaging | *Imaging | ||
**Ultrasound | **[[Ultrasound: Abdomen|Ultrasound]] | ||
***Sensitivity and specificity approach 100%, but operator dependent | ***Sensitivity and specificity approach 100%, but operator dependent | ||
***Classically see bulls eye lesion | ***Classically see bulls eye lesion |
Revision as of 20:30, 6 April 2015
Background
- Most common cause of intestinal obstruction in 3mo-6yr
- Usually occurs in 3-36 months
- Due to telescoping of one part of intestine into another
- Mesentery involvement > ischemia, bloody/mucous stool
- Peds - typically no pathological lesions
- Adults
- Rare
- 80% involve small bowel
Diagnosis
- Classic Triad:
- Sudden colicky pain
- Palpable sausage shaped mass on right
- Currant jelly stool (only 50% of cases)
- Intermittent episodes of pain
- Child pulls up knees
- May be asymptomatic between episodes
- Later stages may be associated with lethargy
- Guaiac-positive stool (~50%)
- Adults
- Typically have partial/SBO symptoms
- Vomiting, rectal bleeding, constipation
- Distended
- Late Stage: sepsis
- Large bowel obstruction associated with malignancy
- Imaging
- Ultrasound
- Sensitivity and specificity approach 100%, but operator dependent
- Classically see bulls eye lesion
- Air contrast enema
- Diagnostic and frequently curative
- Prior to procedure, IV hydration, NG tube decompression, surgery consult
- Ultrasound
- All labs nonspecific
Differential Diagnosis
Pediatric Abdominal Pain
0–3 Months Old
- Emergent
- Nonemergent
3 mo–3 y old
- Emergent
- Nonemergent
3 y old–adolescence
- Emergent
- Nonemergent
Treatment
- Stable patients with a high clinical suspicion and/or radiographic evidence of intussusception and no evidence of bowel perforation should be treated with nonoperative reduction.
- NPO/NG tube
- Air-contrast enema (reduces 80%)
- Surgery consult
- Surgery is indicated when nonoperative reduction is incomplete.
- In stable, asymptomatic patient with ileo-ileo intussusception, short length of intussusception <2.3 cm, expectant management is reasonable as many of these cases will resolve spontaneously
Disposition
- Admit
- Recurrence occurs in ~10% of cases reduced by enema
- initial management same
See Also
Source
Uptodate