Etiology and Outcome of Intestinal Obstruction in Neonates: A 5-Year Investigation of Admitted Cases From a Tertiary Neonatal Intensive Care Unit in Northern Iran.

Background: Neonatal intestinal obstruction is a challenging issue, especially in developing countries. There is an apparent difference in the etiology, complications, and mortality of intestinal obstruction in neonates in different countries. Objectives: We aimed to describe the causes, early postoperative outcomes, and predictors of morbidities in neonates with intestinal obstruction in a tertiary neonatal intensive care unit (NICU) in Iran. Design & methods: We conducted a retrospective study on neonates who were admitted with intestinal obstruction requiring surgery in the NICU of Boo-Ali Sina Hospital in northern Iran during 2018 to 2022. Demographic and clinical characteristics of the newborns, final diagnosis, postoperative complications, and mortality rate were documented. Also, the relationship between postoperative complications and risk factors, including birth weight, gestational age, and surgical intervention time, was evaluated. Results: A total of 169 neonates with intestinal obstruction requiring surgery were admitted with a male ratio of 60.9% and mean age of 3.85 ± 8.01 days. Imperforate anus with a prevalence of 42% was the most common cause of neonatal intestinal obstruction, followed by Hirschsprung's disease and duodenal atresia. Death after surgery occurred in 4.1% of the patients. Sepsis with a prevalence of 1.4% was the most common early postoperative complication. The late surgical intervention had a statistically significant relationship with the increase in postoperative sepsis ( Conclusion: The time of surgical intervention is the main predictor of complications in neonatal intestinal obstruction, so prompt diagnosis and timely treatment of these babies can significantly improve the prognosis. It is also necessary to improve access to pediatric surgery services in developing countries.