Palliative external beam radiotherapy for the treatment of tumor bleeding in inoperable advanced gastric cancer

Autor: Yun Hee Lee, Jeong Won Lee, Hong Seok Jang
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Zdroj: BMC Cancer, Vol 17, Iss 1, Pp 1-6 (2017)
Druh dokumentu: article
ISSN: 1471-2407
DOI: 10.1186/s12885-017-3508-x
Popis: Abstract Background To assess the outcomes and prognostic factors associated with palliative external beam radiotherapy (EBRT), administered to patients with advanced gastric cancer. Methods Forty-two patients with bleeding gastric tumors that received EBRT for palliation were analyzed. The response to EBRT was assessed by the palliation of tumor bleeding. Patients were classified as either responders, or non-responders to EBRT. The prognostic utility of clinical and dosimetric variables was examined in a multivariate logistic regression model. The optimal dose cutoff to classify the two groups was determined with receiver operating characteristic analysis. Results The palliation of gastric tumor bleeding after EBRT was achieved in 29 patients (69.0%). The time to resolve tumor bleeding ranged from 1 to 84 days (median, 15 days). The median duration of palliation was 14.9 weeks. The median EBRT dose was 40 Gy in responders vs. 21 Gy in non-responders, with the difference being significant (p
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