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Changing patterns in the diagnosis of hypertrophic pyloric stenosis
C W Breaux1, K E Georgeson, S A Royal
1Department of Surgery, Children's Hospital of Alabama, Birmingham 35233.
Insights
A palpable mass in infants with hypertrophic pyloric stenosis is diagnostic. Imaging is often unnecessary, reserving it for cases where physical exams are inconclusive, reducing costs and radiation exposure.
Area of Science:
- Pediatric Surgery
- Diagnostic Imaging
Background:
- Hypertrophic pyloric stenosis (HPS) is a common cause of infant vomiting.
- Diagnostic confirmation of HPS traditionally relies on physical examination and imaging studies.
Purpose of the Study:
- To evaluate the diagnostic practices for HPS between 1980 and 1984.
- To assess the necessity of imaging studies in diagnosing HPS.
Main Methods:
- Retrospective review of 216 infant surgical records for HPS.
- Analysis of diagnostic procedures, including physical examination and imaging (ultrasound, GI series).
- Comparison of diagnostic trends across multiple institutions.
Main Results:
- A significant increase in imaging use for HPS diagnosis was observed.
- 89% of infants had a palpable pyloric mass, yet 81% underwent imaging.
- Palpation of a hypertrophied pylorus is a reliable diagnostic indicator.
Conclusions:
- Careful physical examination is sufficient for diagnosing HPS in most infants.
- Diagnostic imaging for HPS should be reserved for cases with persistent vomiting and an impalpable mass.
- Overutilization of imaging for HPS increases healthcare costs and potential risks.
Abstract:
The records of 216 infants who had surgical correction of hypertrophic pyloric stenosis between 1980 and 1984 at the Children's Hospital of Alabama were reviewed. A significant increase in the reliance on upper gastrointestinal roentgenographic series and abdominal sonography for confirmation of the diagnosis of hypertrophic pyloric stenosis was noted in our patients when compared to previous reports. Despite the preoperative presence of a palpable pyloric mass in 192 (89%) of the patients, 174 (81%) had a diagnostic imaging procedure. Similar high rates of imaging studies were noted when the records of patients with hypertrophic pyloric stenosis from 1980 and 1984 were reviewed at three other institutions. Palpation of a hypertrophied pylorus is diagnostic of hypertrophic pyloric stenosis. Careful physical examination makes diagnostic imaging unnecessary in the majority of infants with symptoms suggesting hypertrophic pyloric stenosis. Diagnostic imaging for suspected hypertrophic pyloric stenosis should be used only for those infants with persistent vomiting in whom careful and repeated physical examinations fail to detect a palpable pyloric mass.