Postoperative radiotherapy for gallbladder cancer.
키워드
요약
OBJECTIVE
To evaluate the results of postoperative radiotherapy (PORT) and to identify prognostic factors for gallbladder cancer (GBC).
METHODS
We retrospectively analyzed 86 patients with GBC who underwent potentially curative surgical resection and PORT between November 1993 and December 2009. All patients received three-dimensional conformal radiotherapy and 61 patients (71%) had concurrent chemotherapy. Survival outcomes including locoregional control (LRC), disease-free survival (DFS) and overall survival (OS) rates were analyzed.
RESULTS
The median follow-up period was 83 months for surviving patients. The 5-year OS, DFS and LRC rates were 42%, 36% and 73%, respectively. Isolated locoregional recurrence as first failure occurred in seven patients (8%). On multivariate analysis, the postoperative carbohydrate antigen 19-9 (CA 19-9) level was a significant prognostic factor for LRC, DFS and OS.
CONCLUSIONS
Adjuvant radiotherapy might be an effective treatment in terms of LRC in GBC. Postoperative CA 19-9 might be useful as a surrogate marker for survival.
