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Clinical Study of Intestinal Pacemaker Cells in Neonates With Small Bowel Atresia

Anusiri Inugala1, Satyanarayana Ravula2

  • 1Pediatric Surgery, Institute of Child Health Niloufer Hospital, Hyderabad, IND.

Cureus
|December 25, 2025
PubMed

Insights

Reduced interstitial cells of Cajal (ICCs) in small bowel atresia correlate with poor outcomes. Higher ICC density predicts better postoperative bowel function and survival in neonates.

Area of Science:

  • Neonatal surgery
  • Gastroenterology
  • Histopathology

Background:

  • Small bowel atresia is a primary cause of neonatal intestinal obstruction.
  • Postoperative gastrointestinal dysmotility is a common complication.
  • The role of interstitial cells of Cajal (ICCs) in this context is under-investigated.

Purpose of the Study:

  • To evaluate ICC density and distribution in neonates with small bowel atresia.
  • To correlate ICC presence with postoperative outcomes.
  • To investigate ICCs in atretic, proximal, and distal bowel segments.

Main Methods:

  • Prospective study of 44 neonates with small bowel atresia.
  • Histological and immunohistochemical analysis of resected bowel segments using anti-CD117 (c-Kit).
  • Correlation of ICC distribution with clinical parameters and survival.

Main Results:

  • Sparse or absent ICCs were found in atretic/proximal segments of neonates with delayed bowel function.
  • Higher ICC expression correlated significantly with earlier stool passage.
  • Improved survival was associated with greater ICC expression (p < 0.05).

Conclusions:

  • Reduced ICCs are a key pathological finding in small bowel atresia.
  • ICC density is a significant determinant of postoperative bowel motility and survival.
  • ICC assessment can serve as a prognostic tool and aid surgical planning.
Abstract

Keywords:
immunohistochemistryinterstitial cells of cajalneonatal intestinal obstructionpostoperative outcomesmall bowel atresia

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