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Difficulty: EasyPediatric Gastrointestinal Disorders

A 9-month-old girl is brought to the emergency department due to intermittent episodes of severe crying. During these episodes, she draws her legs up to her chest and appears to be in significant pain. Between episodes, she is calm and plays with her toys. Her parents report one episode of nonbilious emesis and note that her most recent diaper contained dark red, mucus-like stool. Her vital signs are stable, and abdominal examination reveals a palpable sausage-shaped mass in the right upper quadrant without guarding or rebound tenderness. Arrange the following steps in the standard chronological order of management for this patient.

  1. 1Establish intravenous access and administer fluid resuscitation.
  2. 2Perform an abdominal ultrasound to confirm the diagnosis.
  3. 3Perform an image-guided pneumatic (air) or contrast enema.
  4. 4Proceed to surgical exploration and reduction.

Answer

The correct chronological sequence is: 1) Establish intravenous access and administer fluid resuscitation, 2) Perform an abdominal ultrasound, 3) Perform an image-guided pneumatic or contrast enema, and 4) Proceed to surgical exploration if needed.
The standard sequence for managing a stable infant with suspected intussusception begins with supportive care (intravenous fluids) to ensure hemodynamic stability and volume repletion. This is followed by a diagnostic abdominal ultrasound to confirm the presence of the telescoped bowel. Once confirmed, a therapeutic image-guided enema (such as air or contrast) is attempted. If this less invasive reduction is unsuccessful, or if the patient develops signs of peritonitis or perforation, surgical exploration is then required as the definitive treatment.

Step-by-Step Solution

1
Recognize the clinical presentation of intussusception.
Identify that the infant's intermittent pain, currant jelly stool, and right upper quadrant mass strongly indicate intussusception.
Accurate diagnosis is required to initiate the appropriate management pathway.
2
Determine the first step in acute management.
Select intravenous fluid administration.
Patients often have third-spacing and volume depletion; IV access and hydration are required prior to sending a patient to radiology or the operating room.
3
Determine the best diagnostic imaging modality.
Select abdominal ultrasound.
Ultrasound is highly sensitive and specific for intussusception and avoids ionizing radiation, making it the diagnostic test of choice.
4
Identify the primary therapeutic intervention.
Select pneumatic (air) or contrast enema.
In stable patients without peritonitis, an image-guided enema serves to therapeutically reduce the intussusception less invasively.
5
Identify the indications for surgery.
Select surgical exploration as the final, definitive step.
Surgery is indicated only if enema reduction fails, if there is a pathological lead point identified, or if peritonitis is present.

Key Concept

The standard algorithmic management of pediatric intussusception involves medical stabilization first, followed by ultrasound confirmation, attempted non-operative enema reduction, and finally surgical intervention if non-operative measures fail.
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Topics

Pediatric Gastrointestinal Disorders

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