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Updated: Aug 17, 2026

Surgical Management of Meatal Stenosis with Meatoplasty
Published on: November 30, 2010
Recent results of treatment of infantile hypertrophic pyloric stenosis
B Zeidan1, J Wyatt, A Mackersie
1Department of Surgery, Hospital for Sick Children, London.
Insights
Infantile hypertrophic pyloric stenosis treatment has virtually eliminated mortality. Modern surgical techniques and preoperative care significantly improve outcomes for infants undergoing pyloromyotomy.
Area of Science:
- Pediatric Surgery
- Gastroenterology
Background:
- Infantile hypertrophic pyloric stenosis (IHPS) is a common surgical condition in neonates.
- Historically, IHPS carried a significant mortality rate.
Purpose of the Study:
- To evaluate the outcomes of IHPS treatment over a five-year period.
- To assess the efficacy of the Fredet-Ramstedt operation in reducing IHPS mortality.
Main Methods:
- Retrospective review of 106 infants treated for IHPS between December 1980 and November 1985.
- Analysis of operative outcomes, complications, and mortality.
Main Results:
- No operative deaths occurred in 106 infants treated for IHPS.
- Two late deaths were attributed to associated congenital abnormalities.
- The Fredet-Ramstedt operation (pyloromyotomy) combined with preoperative rehydration and anesthesia proved highly effective.
- Common complications included gastro-oesophageal reflux (11%), duodenal perforation (8%), and wound infection (5%).
Conclusions:
- The combination of preoperative rehydration, skilled anesthesia, and the Fredet-Ramstedt pyloromyotomy has virtually eliminated mortality from uncomplicated IHPS.
- While operative mortality is negligible, associated abnormalities remain a cause of late mortality.
Abstract:
During the five year period December 1980 to November 1985, 106 infants with hypertrophic pyloric stenosis were treated. There were no operative deaths, but two late deaths occurred from associated abnormalities. The combination of preoperative rehydration, skilled anaesthesia, and the use of the Fredet-Ramstedt operation (pyloromyotomy) have virtually eliminated mortality from uncomplicated infantile hypertrophic pyloric stenosis. The most common complications were gastro-oesophageal reflux in 11 (11%), perforation of the duodenal fornix in nine (8%), and wound infection in five (5%); no wound dehisced.

