eISSN: 2081-2841
ISSN: 1689-832X
Journal of Contemporary Brachytherapy
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3/2018
vol. 10
 
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abstract:
Original paper

Comparative study of concomitant chemoradiation versus concomitant chemoradiation followed by high-dose-rate intraluminal brachytherapy in locally advanced esophageal carcinoma: a single institutional study

Anirban Halder, Rituparna Biswas, Anshuman Ghosh, Aloke Ghosh Dastidar

J Contemp Brachytherapy 2018; 10, 3: 225–231
Online publish date: 2018/06/29
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Purpose
The aim of this study is to compare efficacy and toxicity between concurrent chemoradiotherapy (CCRT) followed by high-dose-rate intraluminal brachytherapy (ILBT) and CCRT in inoperable, locally advanced esophageal carcinoma.

Material and methods
Thirty-four patients with inoperable, locally advanced esophageal carcinoma were randomized into two arms. In the CCRT + ILBT arm (arm A), eighteen patients received 50.4 Gy at 1.8 Gy per fraction over 5.6 weeks, along with concurrent cisplatin (75 mg/m2) intravenously on day 1, and 5-fluorouracil (1000 mg/m2) continuous intravenous infusion on days 1-5, starting on the first day of irradiation and repeated after 28 days. This was followed by ILBT boost with a dose of 10 Gy in 2 fractions, one week apart. In the CCRT arm (arm B), sixteen patients received two cycles of chemotherapy, using the same schedule, along with external beam radiotherapy fractionated in a similar manner without brachytherapy boost. The endpoints were tumor response, acute and late toxicities, disease and progression-free survival.

Results
With a median follow-up of 13 months, the complete response rate was 88.89% in arm A and 87.50% in arm B (p = 0.71). Acute esophageal toxicity was higher in CCRT followed by ILBT arm (p = 0.6). There was no significant difference between the Kaplan Meier survival plots of disease-free survival (p = 0.678) and progression-free survival (p = 0.548).

Conclusions
In our study, addition of brachytherapy as a boost following concurrent chemoradiation failed to improve treatment outcomes without additional toxicity in locally advanced esophageal cancer.

keywords:

concurrent chemoradiotherapy, disease-free survival, esophageal cancer, intraluminal brachytherapy

 
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