Pyloromyotomy through circumbilical incision with fascial extension.

Extending the fascial incision underlying the circumbilical approach to the shape of an 'inverted T' permits easy delivery of the pyloric tumour for Ramstedt's pyloromyotomy. This modification was used in 51 consecutive infants (42 male, 9 female) with a mean age of 4.7 weeks. Extension of the skin incision or conversion to the right hypochondrium approach was not necessary in any patient and the mean operating time was 31.4 min. Mild wound infection occurred in two infants (3.9%) that resolved with antibiotic treatment. Follow-up at 3 months did not detect any incisional hernia. This modification allows delivery of small or large pyloric tumours, is associated with a low rate of wound infection and does not alter the excellent cosmetic finish.