['Serial transverse enteroplasty facilitates weaning from parenteral support in selected patients with short bowel syndrome, although repeated procedure is frequently required. Our aim was to evaluate the outcome of a series of patients after serial transverse enteroplasty and define predictors of repeated serial transverse enteroplasty and weaning off parenteral support.', 'All children who underwent serial transverse enteroplasty at 4 Nordic pediatric surgery centers from 2004-2015 were included in this observational study. Data were collected from the patient records. The study was approved by the local ethics review boards.', 'Twenty-seven children with short bowel with initial median small bowel length of 26\xa0cm (range, 10-100\xa0cm) were included. Eleven patients had the ileocecal valve remaining. Serial transverse enteroplasty was performed at median age of 7.5\xa0months (range, 0.9-224\xa0months). Serial transverse enteroplasty made the small bowel 46% (0-233%) longer. Eleven patients (41%) underwent a repeated serial transverse enteroplasty 12\xa0months (1.0-72\xa0months) later; 7 patients required additional operative procedures, but none were transplanted. At follow-up, 45.1\xa0months (1.8-126\xa0months) after the first serial transverse enteroplasty, 11 (41%) patients needed parenteral support. The remaining 16 patients had been weaned off parenteral support. One patient had died. Absence of the ileocecal valve was the only factor, which predicted the need for a repeated serial transverse enteroplasty (odds ratio 16.7, 95% confidence interval, 1.7-164.8, P\xa0=\xa0.007). No factor was identified predicting need for parenteral support at follow-up.'] Does absent ileocecal valve predict the need for repeated step in children?