关键词: 新生儿, 肠狭窄, 坏死性小肠结肠炎

Abstract: Objective: To investigate the diagnosis and treatment of neonatal necrotizing enterocolitis (NEC) posterior bowel stricture. Methods: Data of 21 patients with NEC posterior bowel stenosis admitted to our hospital from February 2015 to September 2020 were retrospectively analyzed, and the growth and development of the children were followed up.In accordance with the Bell stage, 5 cases in periodⅠ, 14 cases in periodⅡ and 2 cases in period Ⅲ among the 21 cases. All the children were preoperatively examined by orthographic abdominal X-ray, and 19 cases were simultaneously examined by high-frequency ultrasound.All the 21 cases received surgical treatment after diagnosis. Results: The average consultation time for NEC's posterior intestinal stricture was 29.5 days.Abdominal elevations showed inflating intestinal curvature, and 20 cases presented stepped liquid and gas plane.High-frequency ultrasound examination showed extensive dilatation and effusion of the intestine.Most of the stenosis sites were found in ascending colon, transverse colon and descending colon.Twenty-one cases had intestinal anastomosis Ⅰ period bowel resection, were cured after operation and discharged, and had no deaths.Among 18 cases followed up for a long time, 17 cases had normal diet and development, and 1 case was cured and discharged after intestinal adhesion release due to adhesion obstruction. Conclusion: Colon is more common in NEC posterior bowel stricture.Preoperative abdominal X-ray and high frequency ultrasound are the first methods.It is advisable to narrow bowel resection in the treatment for intestinal anastomosis in periodⅠ.

Key words: neonates, intestinal stricture, necrotizing enterocolitis