High-dose-rate brachytherapy boost for locally advanced cervical cancer: Oncological outcome and toxicity analysis of 4 fractionation schemes
In: Clinical and Translational Radiation Oncology, Jg. 32 (2022), S. 15-23
Online
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Zugriff:
Highlights • Brachytherapy boost is a standard of care for locally advanced cervical cancer. • High-dose-rate brachytherapy (HDR-BT) boost procedure is not standardized. • The number of implants, fractions, doses and imaging differ in literature. • Bi-fractionated HDR-BT in 1 implant is feasible with good oncological outcome. • Bi-fractionated HDR-BT dose escalation slightly increases acute toxicity.
Purpose Brachytherapy (BT) boost after radio-chemotherapy (RCT) is a standard of care in the management of locally advanced cervical cancer (LACC). As there is no consensus on high-dose-rate (HDR) BT fractionation schemes, our aim was to report the oncological outcome and toxicity profile of four different schemes using twice-a-day (BID) HDR-BT. Patients and methods This was an observational, retrospective, single institution study for patients with LACC receiving a HDR-BT boost. The latter was performed with a single implant and single imaging done on day 1. The different fractionation schemes were: 7 Gy + 4x3.5 Gy (group 1); 7 Gy + 4x4.5 Gy (group 2); 3x7Gy (group 3) and 3x8Gy (group 4). Local (LFS), nodal (NFS) and metastatic (MFS) recurrence-free survival as well as progression-free survival (PFS) and overall survival (OS) were analyzed. Acute (≤6 months) and late toxicities (>6 months) were reported. Results From 2007 to 2018, 191 patients were included. Median follow-up was 57 months [45–132] and median EQD210D90CTVHR was 84, 82 and 90 Gy for groups 2, 3 and 4 respectively (dosimetric data missing for group 1). The 5-year LFS, NFS, MFS, PFS and OS were 85% [81–90], 83% [79–86], 70% [67–73], 61% [57–64] and 75% [69–78] respectively, with no significant difference between the groups. EQD210D90CTVHR
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High-dose-rate brachytherapy boost for locally advanced cervical cancer: Oncological outcome and toxicity analysis of 4 fractionation schemes
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Autor/in / Beteiligte Person: | Maud le Guyader ; Daniel Lam Cham Kee ; Gautier, Mathieu ; Chand-Fouche, Marie-Eve ; Schiappa, Renaud ; Thamphya, Brice ; Hannoun-Levi, Jean-Michel |
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Zeitschrift: | Clinical and Translational Radiation Oncology, Jg. 32 (2022), S. 15-23 |
Veröffentlichung: | Elsevier BV, 2022 |
Medientyp: | unknown |
ISSN: | 2405-6308 (print) |
DOI: | 10.1016/j.ctro.2021.10.005 |
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