In a former paper on congenital hypertrophic pyloric stenosis published in 1932, I reported a series of 100 consecutive cases in which I had operated at the Babies Hospital, New York, with only one death. The purpose of this paper is to show the continued success of surgical treatment as evidenced by an additional 143 consecutive cases without a death. No important changes in the treatment have been made since my last report.
Congenital hypertrophic pyloric stenosis is one of the most interesting surgical conditions encountered in early infancy because, while it can be permanently and easily cured by the Fredet-Rammstedt operation after proper preparation, there are still several phases of the disease and its cure about which little is known. Why the tumor disappears after the age of 3 months or why it disappears after the circular muscle is cut has not yet been determined.
The various forms of