Publication date: Available online 27 March 2018
Source:Cancer/Radiothérapie
Author(s): C. Le Fèvre, D. Antoni, A. Thiéry, A. Keller, P. Truntzer, C. Vigneron, J.-B. Clavier, S. Guihard, M. Pop, C. Schumacher, P. Salze, G. Noël
IntroductionLes métastases osseuses sont source de douleurs et altèrent la qualité de vie des patients. La radiothérapie est un des traitements antalgiques de référence. L'objectif de cette étude était de comparer les pratiques courantes d'un service de radiothérapie français pour le traitement des métastases osseuses non compliquées avec les données de la littérature dans le but d'améliorer et d'optimiser la prise en charge des patients.Matériel et méthodesUne étude rétrospective monocentrique des patients ayant bénéficié d'une irradiation palliative de métastases osseuses non compliquées a été menée.RésultatsQuatre-vingt-onze patients ont bénéficié de 116 radiothérapies de métastases osseuses non compliquées sur la période étudiée, dont 44 hommes (48 %) et 47 femmes (52 %), âgés en moyenne de 63 ans (25–88 ans). Les tumeurs primitives les plus fréquemment retrouvées étaient mammaires (35 %), pulmonaires (16 %) et prostatiques (12 %). Les schémas thérapeutiques utilisés étaient dans 29 % des cas 30Gy en dix fractions, dans 21 % des cas 20Gy en cinq fractions, dans 22 % des cas 8Gy en une séance et dans 28 % des cas 23,31Gy en trois fractions en conditions stéréotaxiques. L'état général du patient (indice de performance selon l'Organisation mondiale de la santé et indice de Karnofsky) (p<0,001), le score de la douleur et la consommation d'antalgiques (p<0,001), son profil oligométastatique (p=0,003) et l'expérience du praticien (p<0,001) étaient des facteurs influençant le choix du schéma d'irradiation. L'âge (p=0,46), le sexe (p=0,14), les traitements anticancéreux en cours (p=0,56), l'hospitalisation concomitante (p=0,14) et la distance entre le centre de radiothérapie et le domicile (p=0,87) n'influençaient pas la décision significativement. En tout, trois cas de compression médullaire et un de fracture post-thérapeutique ont été observés, survenant respectivement entre un et 128jours et 577jours après l'irradiation. Huit pour cent de l'ensemble des métastases irradiées ont été ré-irradiées entre 13 et 434jours. Le taux de ré-irradiation était significativement plus important après un traitement par 8Gy (p=0,02). Le taux de décès était significativement moins important (p<0,001) et la probabilité de survie globale significativement plus importante après radiothérapie stéréotaxique (p<0,001).ConclusionCette étude a montré que la population des patients analysée était comparable aux populations de différentes études. Des facteurs prédictifs de choix du schéma thérapeutique ont été identifiés. Le traitement non fractionné était sous-utilisé, alors que le traitement en conditions stéréotaxiques était de plus en plus prescrit, ce qui montre une évolution dans la prise en charge des patients.PurposeBone metastases cause pain and affect patients' quality of life. Radiation therapy is one of the reference analgesic treatments. The objective of this study was to compare the current practices of a French radiotherapy department for the treatment of uncomplicated bone metastases with data from the literature in order to improve and optimize the management of patients.Material and methodsA retrospective monocentric study of patients who underwent palliative irradiation of uncomplicated bone metastases was performed.ResultsNinety-one patients had 116 treatments of uncomplicated bone metastases between January 2014 and December 2015, including 44 men (48%) and 47 women (52%) with an average age of 63years (25–88years). Primary tumours most commonly found were breast cancer (35%), lung cancer (16%) and prostate cancer (12%). The regimens used were in 29% of cases 30Gy in ten fractions (group 30Gy), in 21% of cases 20Gy in five fractions (group 20Gy), in 22% of cases 8Gy in one fraction (group 8Gy) and in 28% of cases 23.31Gy in three fractions of stereotactic body irradiation (stereotactic group). The general condition of the patient (P<0.001), pain score and analgesic (P<0.001), oligometastatic profile (P=0.003) and practitioner experience (P<0.001) were factors influencing the choice of the regimen irradiation. Age (P=0.46), sex (P=0.14), anticancer treatments (P=0.56), concomitant hospitalization (P=0.14) and the distance between the radiotherapy centre and home (P=0.87) did not influence the decision significantly. A total of three cases of spinal compression and one case of post-therapeutic fracture were observed, occurring between one and 128days and 577days after irradiation, respectively. Eight percent of all irradiated metastases were reirradiated with a delay ranging between 13 and 434days after the first irradiation. The re-irradiation rate was significantly higher after 8Gy (P=0.02). The rate of death was significantly lower in the stereotactic arm (P<0.001) and overall survival was significantly greater in the stereotactic arm (P<0.001).ConclusionThis study showed that patients' analysed was comparable to the population of different studies. Predictive factors for the choice of the treatment regimen were identified. Non-fractionnated therapy was underutilised while stereotactic treatment was increasingly prescribed, showing an evolution in the management of patients.
from #ORL-AlexandrosSfakianakis via ola Kala on Inoreader https://ift.tt/2GEg6ww
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Τετάρτη 28 Μαρτίου 2018
Radiothérapie des métastases osseuses en France : étude descriptive rétrospective monocentrique
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