Perforation on the superior side of duodenum is a risk factor of laparoscopic primary repair for duodenal ulcer perforation.

Based on our results, we suggest that laparoscopic primary repair can be safely performed in duodenal ulcer perforation. However, more careful surgery and postoperative care are needed to improve the surgical outcomes of patients who need more than 2 stitches to close their perforation or who have perforations on the superior side of the duodenum.