A new laparoscopic approach for treating duodenal perforations could reshape surgical practices.

• Successfully repaired a descending duodenal perforation using a trans-mesocolic technique in a 69-year-old woman.
• The surgery utilized the superior mesenteric vein for safe access, leading to an uncomplicated recovery.

This technique may reduce operative trauma compared to traditional methods, highlighting the need for further studies to establish broader indications.