This study is to compare the efficiency and safety between minimally invasive (including laparoscopic and robotic) and open pancreaticoduodenectomy for pancreatic cancer. We design a prospective randomized study. Patients with malignant pancreatic tumor who underwent pancreatoduodenectomy are recruited to the study. After obtaining informed consent, eligible patients are randomly allocated to minimally-invasive or open group before the operation day. The outcomes evaluated were hospital stay, and blood loss, radicality of surgery, duration of operation and complication rate as well as disease free survival and overall survival.
