EQD2 Analyses of Vaginal Complications in Exclusive Brachytherapy for Postoperative Endometrial Carcinoma

Background: To evaluate whether EQD2(α/β = 3Gy) at 2 cm3 of the most exposed area of the vagina is related to late vaginal toxicity in postoperative endometrial cancer (PEC) patients (p) treated with exclusive brachytherapy (BT). Methods: From 2014 to 2017, 43p were included in this study. BT was ad...

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Autores: Zhang, Yaowen; Fornes, Balbino; Gómez, Gabriela; Bentoldrà, Irene; Carmona, Clara; Herreros, Antonio; Sabater, Sebastià; Nicolás, Inmaculada; Li, Yan; Sánchez, Joan; Biete Solà, Albert; Torné Bladé, Aureli; Ascaso Terrén, Carlos; Rovirosa Casino, Angeles
Tipo de documento: Artículo
Estado:Published version
Fecha de publicación:2020
País:España
Institución:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:2445/179352
Acceso en línea:https://hdl.handle.net/2445/179352
Nivel de acceso:Acceso abierto
Palabra clave:Càncer d'endometri
Radioteràpia
Endometrial cancer
Radiotherapy
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author Zhang, Yaowen
author2 Fornes, Balbino
Gómez, Gabriela
Bentoldrà, Irene
Carmona, Clara
Herreros, Antonio
Sabater, Sebastià
Nicolás, Inmaculada
Li, Yan
Sánchez, Joan
Biete Solà, Albert
Torné Bladé, Aureli
Ascaso Terrén, Carlos
Rovirosa Casino, Angeles
author2_role author
author
author
author
author
author
author
author
author
author
author
author
author
author_browse Ascaso Terrén, Carlos
Bentoldrà, Irene
Biete Solà, Albert
Carmona, Clara
Fornes, Balbino
Gómez, Gabriela
Herreros, Antonio
Li, Yan
Nicolás, Inmaculada
Rovirosa Casino, Angeles
Sabater, Sebastià
Sánchez, Joan
Torné Bladé, Aureli
Zhang, Yaowen
author_facet Zhang, Yaowen
Fornes, Balbino
Gómez, Gabriela
Bentoldrà, Irene
Carmona, Clara
Herreros, Antonio
Sabater, Sebastià
Nicolás, Inmaculada
Li, Yan
Sánchez, Joan
Biete Solà, Albert
Torné Bladé, Aureli
Ascaso Terrén, Carlos
Rovirosa Casino, Angeles
author_role author
collection Recercat. Dipósit de la Recerca de Catalunya
description Background: To evaluate whether EQD2(α/β = 3Gy) at 2 cm3 of the most exposed area of the vagina is related to late vaginal toxicity in postoperative endometrial cancer (PEC) patients (p) treated with exclusive brachytherapy (BT). Methods: From 2014 to 2017, 43p were included in this study. BT was administered: 3-fractions of 6Gy in 37p and 2-fractions of 7.5Gy in 6p. The dose was prescribed at a depth of 5 mm from the applicator surface with dose-point optimization based on distance. The active treatment length was 2.5 cm. CTV-D90 and the dose to the most exposed 2 cm3 of the vagina was calculated for each patient. Late toxicity of the bladder and rectum was assessed using Radiation Therapy Oncology Group (RTOG) criteria, and vaginal toxicity by objective Late Effects Normal Tissue Task Force (LENT)-Subjective, Objective, Management, Analytic (SOMA) (LENT-SOMA) criteria. Statistics: frequency tables, mean, median, range, standard deviation, and box plot. Results: The median follow-up was 51 months (12-68). 20 p (46.5%) and 2 p (4.7%) developed G1 and G2 vaginal complications, respectively. Only 1/2 p-G2 receiving EQD2(α/β = 3Gy) at 2 cm3 >68Gy presented vaginal shortening and 18/20 p-G1 received doses < 68Gy. Conclusions: PECp receiving exclusive brachytherapy with doses < 68Gy EQD2(α/β = 3Gy) at 2 cm2 of the vagina presented only G0-G1 vaginal toxicity, except for one with bleeding telangiectasias. Larger prospective studies are necessary to confirm the present results.
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id ES_4e51197360bb8df715a0cc4e9c272c2d
institution Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
network_acronym_str ES
network_name_str España
oai_identifier_str oai:recercat.cat:2445/179352
publishDate 2020
publishDateSort 2020
publisher MDPI
publisherStr MDPI
reponame_str Recercat. Dipósit de la Recerca de Catalunya
spelling EQD2 Analyses of Vaginal Complications in Exclusive Brachytherapy for Postoperative Endometrial Carcinoma Zhang, Yaowen Fornes, Balbino Gómez, Gabriela Bentoldrà, Irene Carmona, Clara Herreros, Antonio Sabater, Sebastià Nicolás, Inmaculada Li, Yan Sánchez, Joan Biete Solà, Albert Torné Bladé, Aureli Ascaso Terrén, Carlos Rovirosa Casino, Angeles Càncer d'endometri Radioteràpia Endometrial cancer Radiotherapy Background: To evaluate whether EQD2(α/β = 3Gy) at 2 cm3 of the most exposed area of the vagina is related to late vaginal toxicity in postoperative endometrial cancer (PEC) patients (p) treated with exclusive brachytherapy (BT). Methods: From 2014 to 2017, 43p were included in this study. BT was administered: 3-fractions of 6Gy in 37p and 2-fractions of 7.5Gy in 6p. The dose was prescribed at a depth of 5 mm from the applicator surface with dose-point optimization based on distance. The active treatment length was 2.5 cm. CTV-D90 and the dose to the most exposed 2 cm3 of the vagina was calculated for each patient. Late toxicity of the bladder and rectum was assessed using Radiation Therapy Oncology Group (RTOG) criteria, and vaginal toxicity by objective Late Effects Normal Tissue Task Force (LENT)-Subjective, Objective, Management, Analytic (SOMA) (LENT-SOMA) criteria. Statistics: frequency tables, mean, median, range, standard deviation, and box plot. Results: The median follow-up was 51 months (12-68). 20 p (46.5%) and 2 p (4.7%) developed G1 and G2 vaginal complications, respectively. Only 1/2 p-G2 receiving EQD2(α/β = 3Gy) at 2 cm3 >68Gy presented vaginal shortening and 18/20 p-G1 received doses < 68Gy. Conclusions: PECp receiving exclusive brachytherapy with doses < 68Gy EQD2(α/β = 3Gy) at 2 cm2 of the vagina presented only G0-G1 vaginal toxicity, except for one with bleeding telangiectasias. Larger prospective studies are necessary to confirm the present results. MDPI https://hdl.handle.net/2445/179352
spellingShingle EQD2 Analyses of Vaginal Complications in Exclusive Brachytherapy for Postoperative Endometrial Carcinoma
Zhang, Yaowen
Càncer d'endometri
Radioteràpia
Endometrial cancer
Radiotherapy
status_str publishedVersion
title EQD2 Analyses of Vaginal Complications in Exclusive Brachytherapy for Postoperative Endometrial Carcinoma
title_full EQD2 Analyses of Vaginal Complications in Exclusive Brachytherapy for Postoperative Endometrial Carcinoma
title_fullStr EQD2 Analyses of Vaginal Complications in Exclusive Brachytherapy for Postoperative Endometrial Carcinoma
title_full_unstemmed EQD2 Analyses of Vaginal Complications in Exclusive Brachytherapy for Postoperative Endometrial Carcinoma
title_short EQD2 Analyses of Vaginal Complications in Exclusive Brachytherapy for Postoperative Endometrial Carcinoma
title_sort EQD2 Analyses of Vaginal Complications in Exclusive Brachytherapy for Postoperative Endometrial Carcinoma
topic Càncer d'endometri
Radioteràpia
Endometrial cancer
Radiotherapy
topic_facet Càncer d'endometri
Radioteràpia
Endometrial cancer
Radiotherapy
url https://hdl.handle.net/2445/179352