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[Pyloric stenosis in infants. Contribution of ultrasonography and video-surgery].

Hypertrophic pyloric stenosis is the commonest condition requiring abdominal surgery in infancy. The Fredet-Ramstedt pyloromyotomy gives a very rare morbidity rate as shown by a review of 300 personal cases. The diagnostic value of sonography is gaining significance over contrast roentgenography, a pyloric diameter of more than 14 mm and a muscular thickness of more than 4 mm being required for the diagnosis. Over the last 18 months, we performed extramucosal pyloromyotomies using laparoscopy in 19 infants. This new surgical technique using laparoscopy with precautionary measures for the pneumoperitoneum appears to be very promising and should become a widespread technique in the future.