Comparative Management of Infantile Hypertrophic Pyloric Stenosis: Insights into Ramstedt’s and Double ‘Y’ Pyloromyotomy

Infantile hypertrophic pyloric stenosis (IHPS) is the most common cause of gastric outlet obstruction in infancy, in which the pyloric portion of the stomach becomes hypertrophied, leading to obstruction of gastric emptying. Vomiting frequently transpires quickly after eating and progressively becomes more frequent and severe as the condition advances. IHPS is a relatively common gastrointestinal disorder in infancy, with an estimated incidence of 1 to 2 per 1000 live births and a male predominance ranging from 2:1 to 5:1. Prompt diagnosis and timely surgical intervention are essential to prevent serious metabolic derangements such as hypo-chloremic and hypokalemic metabolic alkalosis. Pyloromyotomy, the definitive surgical treatment, remains the cornerstone of management and has an excellent prognosis when performed appropriately. The first successful surgery was performed by Dufour and Fredet, in which the hypertrophic pyloric muscle was longitudinally split and closed transversely. However, Ramstedt introduced extramucosal pyloromyotomy in 1912, which remains the gold standard for the surgical management of IHPS. Later, in 2009, Alalayet et al. introduced a new technique known as Alalayet’s Double-Y pyloromyotomy, which they claimed to have a better functional outcome compared to Ramstedt’s pyloromyotomy while maintaining a similar safety profile. Our study demonstrated that the Double-Y pyloromyotomy procedure provides a better functional outcome regarding vomiting and weight gain in the early postoperative period. This seems to be due to the wider opening of the pyloric canal at both ends. This chapter explores the pathophysiology, clinical features, and a comparative analysis of surgical approaches for IHPS.