Case-matched Comparison of Outcomes Following Neonatal Mucous Fistula Refeeding: 13-year Institutional Review.

BACKGROUND

Refeeding ostomy effluent into the residual bowel via the mucus fistula (MFR) has been associated with decreased parenteral nutrition needs and decreased cholestasis. However, MFR is also associated with risks and the literature is not definitive. We performed a case matched comparison of neonates treated with and without MFR.

METHODS

All neonates who underwent enteral diversion between 2010 and 2023 were identified. Neonates who received MFR were propensity score matched with non-MFR neonates. Primary objectives included cholestasis and ability to achieve full feeds prior to enterostomy closure (EC). We also evaluated MFR complications (perforation, ostomy stricture, leak or prolapse).

RESULTS

262 neonates were case matched (131 MFR and 131 non-MFR). Age, height, and weight on admission were comparable. We found no difference in ability to achieve full feeds prior to EC. MFR neonates did have a lower incidence of cholestasis (p < 0.001). Complications occurred in 24 (18 %) of MFR neonates and abdominal reoperations prior to EC occurred more frequently in MFR (18 %) vs non-MFR (6.9 %) neonates, odds ratio 3.21 (1.44, 7.61).

CONCLUSION

MFR is an important tool in the postoperative management of diverted neonates. However, when critically analyzed via statistical case matching, our study shows that the benefits may be more nuanced.

LEVEL OF EVIDENCE: Level III.

STUDY TYPE: Retrospective Chart Review.