Comparison of Chen's U-suture Technique with Duct-to-Mucosa Anastomosis and Invagination Pancreaticojejunostomy After Pancreaticoduodenectomy

Initially, an approximately 2 cm cut edge of the pancreas remnant was mobilized and a incision of the jejunal loop was conducted slightly shorter than the pancreatic remnant. Using dual-needle 3-0 prolene suture for anastomosis, needle A went through the entire intestinal wall from the posterior wall about 1.5 cm away from the resection margin of the jejunum loop, then went through the superior boarder of the pancreas from posterior to anterior. To suture the anterior wall of the jejunum loop, the stitch next entered from the resection margin of the jejunum loop and kept it within the seromuscular layer from proximal to distal, and got out from about 1.5 cm away from the resection margin. Needle B repeated the aforementioned procedures with a parallel distance about 1.0 cm between needle A. Generally, the whole anastomosis needed two to four identical stitches. The stitches should overlap each other to reduce pancreatic leakage. Once all the stitches were finished and tighte