Abstract

Perioperative blood transfusion is associated with poor outcomes in several malignancies. Its effect in gallbladder cancer (GBC) is unknown. All patients with GBC who underwent curative-intent resection at 10-institutions from 2000 to 2015 were included. The effect of blood transfusion on overall survival (OS) and recurrence-free (RFS) was evaluated. Of 262 patients with curative-intent resection for GBC, 61 patients (23%) received blood transfusions. Radical cholecystectomy was the most common procedure (80%), but major hepatectomy was more frequent in the transfusion versus no-transfusion group (13% vs 4%; P = 0.02). The transfusion group was less likely to have incidentally discovered disease (57% vs 74%) and receive adjuvant therapy (29% vs 48%), but more likely to have preoperative jaundice (23% vs 11%), T3/T4 tumors (60% vs 39%), LVI (71% vs 40%), PNI (71% vs 48%), and major complications (39% vs 12%) (all P < 0.05). Transfusion was associated with lower median OS compared to no-transfusion (20 vs 32 mos; P < 0.001), which persisted on multivariable (MV) analysis (HR:1.9; 95%CI 1.1-3.5; P = 0.035), controlling for comorbidities, serum albumin, INR, preoperative jaundice, major hepatectomy, incidental discovery, margin status, T-Stage, LN status, and major complications. Median RFS of transfused patients was 13mo compared to 49mo for non-transfused patients (P = 0.1). Transfusion, however, was an independent predictor of decreased RFS on MV analysis (HR:2.3; 95%CI 1.1-5.1; P = 0.035). Perioperative blood transfusion is associated with decreased OS and RFS after resection for GCC, accounting for other adverse factors. Transfusions should thus be administered with well-defined protocols.

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