Abstract
One hundred and fourteen cases of hypertrophic pyloric stenosis (HPS) were operated on at the department from 1968 to 1988. These 114 patients were divided into 5 groups according to operated period and compared with clinical feature, intraoperative findings and measurements of resected muscularis. Patients operated on within 14 days of birth were allocated to group I; patients from 15 to 30 days of birth, group II; patients from 31 to 60 days, group III; patients from 61 to 90 days, group IV; and patients later than 91 days, group V. Group I and II, namely patients operated on in neonatal period, disclosed better preoperative conditions and postoperative clinical course than those of group IV and V, especially group V. Accordingly, more careful pre and postoperative management should be given to patients undergoing operation in a later period.
