Publication date: Available online 29 April 2017
Source:Radiotherapy and Oncology
Author(s): Seung Yeun Chung, Jee Suk Chang, Byung Min Lee, Kyung Hwan Kim, Kyong Joo Lee, Jinsil Seong
PurposeTo investigate whether radiotherapy (RT) dose escalation would improve treatment outcomes without increasing severe toxicity in locally advanced pancreatic cancer patients.MethodsFrom 2005 to 2015, 497 locally advanced pancreatic cancer patients who received neoadjuvant or definitive chemoradiotherapy (CCRT) were included. Patients were divided according to the total dose (TD). Overall survival (OS), progression-free survival (PFS), local failure-free rate (LFFR), distant failure-free rate (DFFR), and toxicity rates were compared between <61Gy (n=345) and ≥61Gy groups (n=152). Additionally, propensity score matching was performed.ResultsAt a median follow-up of 19.3months (range, 4.8–128.5months), the 1-year OS, PFS, LFFR, and DFFR were significantly higher in the ≥61Gy group. After multivariate analysis, a TD of ≥61Gy remained a significant favorable factor for OS (p=0.019), PFS (p=0.001), LFFR (p=0.004), and DFFR (p=0.008). After propensity score matching, the ≥61Gy group still showed higher OS, PFS, and LFFR, but not DFFR (p=0.205). The acute and late toxicity rates showed no significant difference between the two groups.ConclusionPatients who received a higher RT dose showed not only improved PFS and LFFR, but also improved OS without an increase in severe toxicity. Dose-escalated CCRT can be a favorable treatment option in locally advanced pancreatic cancer patients.
http://ift.tt/2pu101Q
Σφακιανάκης Αλέξανδρος
ΩτοΡινοΛαρυγγολόγος
Αναπαύσεως 5 Άγιος Νικόλαος
Κρήτη 72100
00302841026182
00306932607174
alsfakia@gmail.com
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