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Τετάρτη 5 Μαΐου 2021

Contemporary external beam radiotherapy boost or high dose-rate brachytherapy boost for cervical cancer: a propensity-score-matched, nationwide, population-based cohort study

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Am J Cancer Res. 2021 Apr 15;11(4):1719-1732. eCollection 2021.

ABSTRACT

To estimate the survival effects of contemporary external beam radiotherapy (EBRT) boost modalities (intensity-modulated radiation therapy or volumetric modulated arc therapy) and high dose-rate brachytherapy (HDR-BT) boost in patients with cervical cancer (CC). Patients who had been diagnosed as having CC were recruited from the Taiwan Cancer Registry Database. Propensity score matching was performed, and Cox proportional-hazards model curves were used to analyze the all-cause mortality of patients who received standard whole-pelvis irradiation with different boost modalities. The matching process yielded a final cohort of 1,630 patients (815 in the EBRT boost and HDR-BT boost groups, respectively) eligible for further analysis. The multivariate Cox regression analyses indicated that the adjusted hazard ratio (95% confidence intervals) for EBRT boost compared wit h HDR-BT boost was 1.62 (1.43-1.84). Multivariable analysis revealed that the independent poor prognostic factors of all-cause mortality among patients with CC were adenocarcinoma, no chemotherapy, Charlson comorbidity index score ≥ 1, age ≥ 60 years, and advanced International Federation of Gynecology and Obstetrics stage. HDR-BT boost may be more beneficial than contemporary EBRT boost in selected patients with CC.

PMID:33948385 | PMC:PMC8085 872

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