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The Clavien-Dindo (C-D) classification is a simple and feasible grading system of postoperative complications. The aim of the present study was to apply this system to retrospectively classify all types of post-pancreaticoduodenectomy (PD) complications (PPCs) and to systematically identify associated risk factors. Between January 2009 and December 2014, the C-D classification was applied to retrospectively classify PPCs for 1,056 patients who had undergone PD at the West China Hospital. Univariate and multivariate analyses were performed to link perioperative parameters and mortality with the severity of PPCs, which were subdivided into overall PPCs (Grade I-V), severe PPCs (Grade III-V) and mortality (Grade V). The number of patients with Clavien-Dindo grade I, II, IIIa, IIIb, IVa, IVb and V complications was 185 (17.5%), 128 (12.1%), 50 (4.7%), 25 (2.4%), 35 (3.3%), 19 (1.8%) and 33 (3.1%), respectively. A total of 475 (45.0%) patients experienced overall PPCs; 168 (15.9%) patients experienced severe PPCs; and 33 patients succumbed to mortality following PD. The following risk factors were identified following PD: Preoperative hypoproteinemia was correlated with all three subdivisions; obstructive jaundice was associated with severe PPCs and mortality; and older age was revealed to be an independent risk factor of mortality. A large retrospective study was performed in the present study and PD was correlated with a high occurrence of PPCs. The Clavien-Dindo system represents a broad applicable and feasible approach to evaluating PPCs in patients following PD. The independent risk factors of PPCs that were identified in the present study require further validation using the Clavien-Dindo classification in additional prospective studies.

oncology letters

Use of Clavien‑Dindo classification in evaluating complications following pancreaticoduodenectomy in 1,056�cases: A retrospective analysis from one single institution