Immunoparalysis After Pancreaticoduodenectomy

"mHLA-DR analysis will be realized on Cyto-Chex® BCT anticoagulant tubes (5mL). Each sample will be transported and centralized at the Immunology Laboratory of Edouard Herriot Hospital and analyzed by flow cytometry.~Samples will be collected :~* The day of surgery before intervention~* The day of surgery after intervention~* At postoperative day one~* At postoperative day two~* At postoperative day three~* At postoperative day four~* At postoperative day five~* At postoperative day seven"