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- W2019928139 abstract "Entre novembre 1988 et mai 1992, 14 patients ont participé à une étude pilote dans le but d'évaluer la faisabilité d'une réirradiation hyperfractionnée sur des récidives ou des seconds cancers développés en volume irradié. Chaque patient inclus dans l'étude avait fait l'objet d'une intervention chirurgicale et, en raison de marges envahies et/ou d'adénopathies en rupture capsulaire, une réirradiation leur a été proposée au cours de laquelle une dose de 60 Cy a été délivrée en 5 semaines à raison de deux séances quotidiennes de 1,2 Gy espacées d'au moins 6 heures. Sur les 14 patients, dix ont terminé leur irradiation. Tous les patients ont eu une réaction muqueuse ne nécessitant pas d'interruption de la radiothérapie. Dix patients sont décédés entre 3 et 41 mois après la fin de la réirradiation (moyenne: 14 mois), trois étaient en rémission clinique complète au moment de l'analyse, soit 48 et 71 mois après la réirradiation, et un patient était vivant 74 mois après la réirradiation mais avec une poursuite évolutive. Le taux de contrôle local en volume irradié était de 43 %. Les taux de survie globale à 2 et 3 ans étaient respectivement de 50 et 35 %. Treize complications tardives ont été observées: quatre de grade 1, sept de grade 2 et deux de grade 3. Chez trois patients (ceux vivants lors du recueil des données) ont pu être réalisés des histogrammes dose-volume et ainsi déterminéees les doses cumulées des deux irradiations. En dépit de résultats carcinologiques médiocres, il est possible de délivrer 60 Cy selon un schéma hyperfractionné sans crainte de complications rhédibitoires. Purpose: Between November 1988 and May 1992, 14 patients were enrolled in a pilot study to evaluate the feasibility and results of hyperfractionated reirradiation for the treatment of head and neck recurrences or of second primary tumors developped in a previously irradiated volume. All patients underwent a surgical resection for the treatment of their recurrence or second cancer. Reirradiation was proposed because of positive margins and/or lymph node metastasis with extra-capsular spread. The planned reirradiation dose was 60 Gy over 5 weeks, with two daily fractions of 1.2 Gy delivered 6–8 hours apart. Of the 14 patients, 10 received the reirradiation scheduled dose (ie, 60 Gy). All patients experienced an acute mucositis that never led to disruption of the treatment. Ten patients died 3 to 41 months after reirradiation (mean: 14 months), three were disease-free 48 to 71 months after reirradiation and one was alive with local progressive disease 74 months after reirradiation. The overall local control rate within the reirradiated volume was 43 %. The 24- and 36-month overall survival rates were 50 and 35 %, respectively. Overall, 13 late complications were noted: four were grade 1, seven were grade 2, and two were grade 3. Three patients still alive in September 1993 and whose initial files were available were enrolled in an additional study to assess from dosevolume histograms the cumulative doses delivered by the two irradiations. Despite poor local control, reirradiation using a hyperfractionation schedule with high dose level is feasible in terms of acute and late toxicity." @default.
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- W2019928139 title "Réirradiation hyperfractionnée après chirurgie de rattrapage de carcinomes cervicaux-faciaux. Résultat d'une étude pilote de 14 patients" @default.
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- W2019928139 doi "https://doi.org/10.1016/s1278-3218(97)84058-9" @default.
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