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Pyloric stenosis refers to a narrowing of the passage between the stomach and the small intestine. The condition, which affects infants during the first several weeks of life, can be corrected effectively with surgery. The main symptom is vomiting after feedings. Other symptoms include increased appetite, weight loss, infrequent bowel movements, belching, and diarrhoea. Due to dehydration, the infant may also have fewer wet diapers.
Statistical analysis on pyloric stenosis in Netherlands was resulted as four RCTs with a total of 502 patients (OP 255, LP 247) fulfilled the inclusion criteria and were analysed in this review. These trials showed an absolute incidence of major postoperative complications of 4.9% in the LP group. Meta-analysis showed that LP did not lead to significantly more major postoperative complications (ARR 3%, 95% CI −3 to 8%) than OP. The mean difference in time to full feed was significant (2.27 h, 95% CI −4.26 to −0.29 h) and the mean difference in postoperative hospital stay tended to be shorter (2.41 h, 95% CI −6.10 to 1.28 h), both in favour of LP.