Survival after extended resections for gallbladder cancer.

BACKGROUNDS/AIMS: Locally advanced gallbladder cancer (GBC) is associated with survival limited to a few months. Extended resections (ER) are occasionally performed in this group and outcomes remain inconclusive. This study assessed outcomes after ER for locally advanced GBC.

METHODS: Patients who underwent ER for GBC between 2011 and 2020 were reviewed. ER was defined as a major hepatectomy alone (n = 9), a pancreaticoduodenectomy (PD) with or without minor hepatectomy (n = 3), a major hepatectomy with PD (HPD) (n = 3) or vascular resection and reconstruction (n = 4). We assessed 30-day morbidity, mortality, and 2-year overall survival (OS).

RESULTS: Among 19 patients, negative margins were achieved in 14 (73.6%). The 30-day mortality was 1/9 (11.1%) for a major hepatectomy, 0/3 (0%) for a minor HPD, 2/3 (66.7%) for a major HPD, and 1/4 (25.0%) for vascular resection. All short term survivors (< 6 months) (n=8) had preoperative jaundice and 6/8 (75.0%) underwent a major HPD or vascular resection. There were five (26.3%) long term survivors. The median OS in patients with and without preoperative jaundice was 4.1 months (0.7-11.1 months) and 13.7 months (12-30.4 months), respectively ( p = 0.009) (2-year OS = 7% vs. 75%; p = 0.008). The median OS in patients who underwent a major hepatectomy alone or a minor HPD was 11.3 months (6.8-17.3 months) versus 1.4 months (0.3-4.1 months) ( p = 0.02) in patients who underwent major HPD or vascular resection (2 year OS = 33% vs. not reached) ( p = 0.010) respectively.

CONCLUSIONS: In selected patients with GBC, when ER is limited to a major hepatectomy alone, or a minor HPD, acceptable survival can be achieved.