Role of Adjuvant Radiotherapy in Left-Sided Pancreatic Cancer-Population-Based Analysis with Propensity Score Matching
- 주제(키워드) Adjuvant radiotherapy , Pancreatic cancer , Left-sided pancreas , SEER , Survival
- 주제(기타) Gastroenterology & Hepatology
- 주제(기타) Surgery
- 후원정보 Pancreas Club
- 등재 SCIE, SCOPUS
- 발행기관 SPRINGER
- 발행년도 2015
- 총서유형 Journal
- 회의명 49th Annual Meeting of the Pancreas-Club
- 개최지 Washington, DC
- 일자 42139
- URI http://www.dcollection.net/handler/ewha/000000161980
- 본문언어 영어
- Published As http://dx.doi.org/10.1007/s11605-015-2941-x
초록/요약
This population-based study evaluated the survival impact of postoperative radiotherapy (PORT) in left-sided pancreatic cancer. The Surveillance, Epidemiology, and End Results (SEER) database was used to identify patients with surgically resected left-sided pancreatic adenocarcinoma from 2004 to 2010. Propensity score matching was conducted to compare PORT and non-PORT groups. A total of 445 patients were identified, and PORT was performed in 180 (40 %) patients. In the unmatched population, there were no significant differences in overall survival (OS) (P = 0.197) and cause-specific survival (CSS) (P = 0.379) between the PORT and non-PORT groups. After propensity score matching, the patients treated with PORT had longer median OS (P = 0.012) and CSS (P = 0.039) than the non-PORT group. In propensity-adjusted multivariate analysis, non-receipt of PORT was a poor prognostic factor in OS (hazard ratio [HR] 1.39, 95 % confidence interval [CI] 1.08-1.79), and CSS (HR 1.31, 95 % CI 1.01-1.71). The log odds of positive lymph nodes (LOODS) (a parts per thousand yena'0.73) was also associated with worse OS (P = 0.003) and CSS (P = 0.001). In left-sided pancreatic cancer, considering the addition of PORT is a reasonable option as in pancreatic head cancer. The LOODS was suggested as a strong predictive indicator of the patients' prognoses.
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