Kifayat Khan, Niaz Mohammad, Mohammad Yunas Khan, Tariq Waheed.
Usefulness of ultrasound in the diagnosis of Infantile Hypertrophic Pyloric Stenosis (IHPS).
J Postgrad Med Inst Jan ;19(2):200-3.

Objectives: The aim of our study was to know the diagnostic accuracy of ultrasonography in infantile hypertrophic pyloric stenosis (IHPS). Material and Methods: This Prospective study of patients with clinical features suggestive of IHPS was carried out from January 2002 to December 2003 (2 years duration), at paediatrics surgery unit of Lady Reading Hospital Peshawar. Patients with clinical suspicion of IHPS were admitted through casualty, OPD and also shifted from other units. After clinical diagnosis of pyloric stenosis, ultrasound scanning was performed in all cases by a single experienced sonographer. All patients underwent surgery and pyloromyotomy was performed in all patients. Patients were followed up for at least 3 months. Results: Twenty patients with clinical suspicion of IHPS were studied. The age ranged from 19 days to 120 days with average of 49 days. Male to female ratio was 19:1. The most common presenting symptom was nonbilious vomiting (100%). Ultrasound revealed IHPS in all twenty cases. Surgery confirmed the findings of ultrasound scanning, showing 100 % sensitivity of ultrasound in diagnosing IHPS. Pyloromyotomy was performed in all cases. There was no complication observed in this study. Conclusion: Ultrasound scanning is a useful tool of investigation and should be done in all suspected cases of IHPS to reduce the diagnostic errors leading to mismanagement.

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