Inclusion Criteria:  Adult patients (≥ 18 years) Signed informed consent Patient with a Pancreas Ca who is undergoing Whipple surgery Patient with ASA grade 1 to 3  Exclusion Criteria:  Patient has ASA 4 Patient under long-term use of anticoagulant therapy (except low dose aspirin) Patient has tumor invasion of blood vessels The patient undergoes a total pancreatectomy Patient undergoes a double derivation pregnant or breastfeeding woman