Congenital colonic atresia. Surgery correction in one or two stages?

Sigmoid atresia is rare, the recognzed prevalence is 1 per 15.000 to 60.000 live born. We present a 30 hours old boy with vomiting, abdominal distension and failure to pass meconium. Physical examination showed severe abdominal distension. An enema was performed and a gray mucus plug taken out. The abdominal plain XR showed bowel obstruction and in a barium enema only 5-7 cm of microcolon was seen. With the diagnosis of sigmoid atresia the patient underwent surgery, observing one atresia type I, with dilated proximal loop and distal microcolon. A colostomy was performed and few days later one end-to-end anastomosis was made.