Abstract
Background
Gallbladder cancer has a high mortality rate and an increasing incidence. The current National Comprehensive Cancer Network (NCCN) guidelines recommend resection for all T1b and higher-stage cancers. This study aimed to evaluate re-resection rates and the associated survival impact for patients with gallbladder cancer.
Methods
Patients with gallbladder adenocarcinoma who underwent resection were identified from the National Cancer Database (2004–2015). Re-resection was defined as definitive surgery within 180 days after the first operation. Propensity scores were created for the odds of a patient having a re-resection. Patients were matched 1:2. Survival analyses were performed using the Kaplan–Meier and Cox proportional hazard methods.
Results
The study identified 6175 patients, and 466 of these patients (7.6%) underwent re-resection. Re-resection was associated with younger median age (65 vs 72 years; p < 0.0001), private insurance (41.6% vs 27.1%; p < 0.0001), academic centers (50.4% vs 29.7%; p < 0.0001), and treatment location in the Northeast (22.8% vs 20.4%; p = 0.0011). Compared with no re-resection, re-resection was associated with pT stage (pT2: 47.6% vs 42.8%; p = 0.0139) and pN stage (pN1-2: 28.1% vs 20.7%; p < 0.0001), negative margins on final pathology (90.1% vs 72.6%; p < 0.0001), and receipt of chemotherapy (53.7% vs 35.8%; p < 0.0001). The patients who underwent re-resection demonstrated significantly longer overall survival (OS) than the patients who did not undergo re-resection (median OS, 44.0 vs 23.0 months; p < 0.0001). After propensity score-matching, re-resection remained associated with superior survival (median OS, 44.0 vs 31.0 months; p = 0.0004).
Conclusions
Re-resection for gallbladder cancer is associated with improved survival but remains underused, particularly for early-stage disease.
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Papageorge, M.V., de Geus, S.W.L., Woods, A.P. et al. Undertreatment of Gallbladder Cancer: A Nationwide Analysis. Ann Surg Oncol 28, 2949–2957 (2021). https://doi.org/10.1245/s10434-021-09607-6
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DOI: https://doi.org/10.1245/s10434-021-09607-6