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Intraluminal brachytherapy boost following external beam radiotherapy with concurrent chemotherapy of oesophagus carcinoma: Results of a prospective observational study

The main objective of our study is to evaluate response and toxicity profile in patients receiving external beam radiotherapy with concurrent chemotherapy followed by intraluminal brachytherapy boost for a carcinoma of the oesophagus. Twenty patients with biopsy-proven carcinoma of the oesophagus re...

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Bibliographic Details
Published in:Cancer radiothérapie 2018-04, Vol.22 (2), p.163-166
Main Authors: Nag, P., Gurjar, O.P., Bhandari, V., Gupta, K.L., Bagdare, P., Goyal, H.
Format: Article
Language:English
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Summary:The main objective of our study is to evaluate response and toxicity profile in patients receiving external beam radiotherapy with concurrent chemotherapy followed by intraluminal brachytherapy boost for a carcinoma of the oesophagus. Twenty patients with biopsy-proven carcinoma of the oesophagus received external beam radiotherapy (50Gy in 25 fractions) with concurrent chemotherapy (cisplatin: 40mg/m2). After a gap of two to three weeks, intraluminal brachytherapy (10Gy in two fractions each 1 week apart by a high dose rate 60Co source) was given. Response was evaluated at 1 month and at 1 year of completion of treatment. In addition, acute and chronic toxicity was evaluated at 1 month and 6 months of treatment. Complete response were seen in 80% of patients and partial response in 20% at 1 month. Moreover, there were 65% complete response, 10% local recurrences, 15% patients showed local control with distant metastasis and 10% patients died at 1 year. Grade 1, grade 2 and grade 3 oesophagitis were seen in 10%, 70% and 20% of patients respectively. Stricture was seen in 40% of patients and fistula in 10% of patients. There was no spinal cord, cardiac and nephrotoxicity found. With the concept that high tumoricidal dose for adequate tumor control achieved by intraluminal brachytherapy as a mean of dose escalation, while sparing surrounding normal tissue and potentially improving therapeutic ratio, external beam radiotherapy followed by intraluminal brachytherapy could be a better choice for oesophagus carcinoma. L’objectif principal de l’étude était d’évaluer le profil de réponse et de toxicité chez les patients recevant une radiothérapie externe avec une chimiothérapie concomitante suivie d’une curiethérapie endoluminale pour un cancer de l’œsophage. Vingt patients ont reçu une radiothérapie externe de 50Gy en 25 fractions et une chimiothérapie concomitante de 40mg/m2 par semaine, puis deux à trois semaines plus tard une curiethérapie endoluminale par une source de cobalt 60 de 10Gy en deux fractions espacées d’une semaine. La réponse a été évaluée à 1 mois et 1 an après l’achèvement du traitement. La toxicité aiguë et chronique a également été évaluée à 1 mois et 6 mois de traitement. Une réponse complète a été observée chez 80 % des patients et une réponse partielle chez 20 % à 1 mois. Il y a eu 65 % de réponses complètes, 10 % de récidives locales, 15 % des patients étaient en situation de contrôle local avec une métastase à distance et 10 % de patient
ISSN:1278-3218
1769-6658
DOI:10.1016/j.canrad.2017.09.008