Related Experiment Videos
A clinical study of young infants after small intestinal resection
Insights
Infants undergoing extensive small intestine resection showed significant gut adaptation and improved growth. Most survivors achieved oral feeding and normal development within a year, demonstrating resilience after major surgery.
Area of Science:
- Pediatric Surgery
- Gastroenterology
- Developmental Pediatrics
Background:
- Massive small intestine resection in infants presents significant challenges for growth and nutrition.
- Understanding the long-term adaptive capacity of the remaining gastrointestinal tract is crucial.
Purpose of the Study:
- To evaluate the outcomes of infants who underwent small intestine resection before three months of age.
- To assess gut adaptation, growth, development, and potential complications post-resection.
Main Methods:
- Prospective study of 15 infants with small intestine resection (proximal, mid, or distal).
- Follow-up included assessment of nutritional status, growth parameters, developmental milestones, and absorptive function.
- Monitoring for complications such as infections, hyperacidity, and metabolic disturbances.
Main Results:
- 12 of 13 survivors achieved oral feeding by one year; seven were above the third percentile for height and weight.
- Compensatory adaptation of the remaining gut was evident through improved fat and vitamin B12 absorption.
- Complications included bacterial contamination, gastric hyperacidity, and hyperoxaluria; immune function was generally normal.
Conclusions:
- Massive small intestine resection in early infancy does not prevent spontaneous improvement in absorptive function, growth, and development.
- The pediatric gut demonstrates remarkable compensatory adaptation following significant resection.
- Early nutritional support and monitoring are vital for optimizing outcomes in these complex cases.
Abstract:
We prospectively studied 15 infants who, before 3 months of age, underwent resection of the small intestine-proximal in 3 infants, mid in 6, and distal in 6. Two died before one year of age. Many required prolonged parenteral nutrition, but by one year, 12 of the 13 survivors were on oral feedings only, and seven were above the third percentile for height and weight. Developmental delay occurred in the early postoperative period but diminished with time. There was compensatory adaptation of the remaining gut, shown by improving fat and B12 absorption and duodenal bile-salt concentrations. Bacterial contamination complicating end-to-side anastomoses occurred in two cases (P), gastric hyperacidity in four of 12 (1P, 3M), and hyperoxaluria in eight of 14 (1P, 5M, 2D). Studies of immune competence revealed normal cellular immune function (11/11), transient hypogammaglobulinemia (3/14), hypocomplementemia (1/12), and serum autoantibodies (3/10). Thus, massive resection of the small intestine did not preclude spontaneous improvement in absorptive function, growth, and development.