Radiochirurgie des Glioblastoma multiforme in der Rezidivsituation
- 1 January 1998
- journal article
- clinical trial
- Published by Springer Nature in Strahlentherapie Und Onkologie
- Vol. 174 (1), 19-24
- https://doi.org/10.1007/bf03038223
Abstract
Ergebnisdarstellung einer prospektiven Phase-II-Studie zur stereotaktischen Einzeitbestrahlung von Patienten mit rezidivierendem Glioblastoma multiforme nach primärer Operation und Bestrahlung. Seit 1986 wurden 62 Patienten mit der Diagnose Glioblastoma multiforme in Maskenfixation radiochirurgisch behandelt. Einschlußkriterien waren Tumor ≤5 cm und Karnofski-Index ≥70. In der Rezidivsituation wurden 27 Patienten behandelt (Durchschnittsalter 50 Jahre). Als Zielvolumen wurde der im zur Bestrahlungsplanung angefertigten Magnetresonanztomogramm (MRT) Kontrastmittel aufnehmende Rezidivtumor mit einem Sicherheitssaum von 2 bis 5 mm definiert. Die mittlere Einzeitdosis betrug 17 Gy, das mediane Intervall von Erstdiagnose und Primärtherapie bis zur Radiochirurgie bei Rezidiv betrug 9,6 Monate. Die Primärtherapie hatte in einer Operation und postoperativen Strahlentherapie (60 Gy) bestanden. Überlebenskurven wurden nach Kaplan Meier berechnet. Die Lebensqualität wurde nach objektiven Kriterien wie neurologischer Befund, Anfallsfrequenz und Cortisonpflichtigkeit bewertet. Das mediane Überleben der Rezidivpatienten betrug 18 Monate nach Diagnosestellung und neun Monate nach Einzeitbestrahlung. Zum Zeitpunkt 4,5 Monate nach Therapie zeigten 50% der behandelten Patienten eine Verbesserung oder Stabilisierung der Lebensqualität. In der Rezidivsituation des Glioblastoma multiforme nach primärer Operation und Bestrahlung stellt die Radiochirurgie für ausgewählte Patienten eine Behandlungsoption dar. To describe the clinical results a prospective phase II study of radiosurgically treated patients with recurrent glioblastoma multiforme. Since 1986, 62 patients were irradiated stereotactically. Including criteria were residual tumor ≤5 cm and Karnofsky performance score ≥70. Twenty-seven patients (mean age 50 years) were treated for recurrent tumor. The planning target volume was defined by the contrast enhancing region demonstrated by magnetic resonance imaging (MRI) scans which were performed in treatment position. A safety margin of 2 to 5 mm was added. The mean dose was 17 Gy. The median interval from the time of initial diagnosis and therapy to radiosurgery for recurrent tumor was 9.6 months. Initial therapy consisted of surgery and irradiation (60 Gy). Survival curves were calculated according to the Kaplan Meier method. Quality of life was evaluated using objective criteria such as neurological findings, frequency of seizures and steroid medication. The median survival calculated from the time of diagnosis was 18 months, calculated from the time of radiosurgery 9 months. 4.5 months after therapy, 50% of the patients showed improved or stable quality of life. Radiosurgery demonstrates efficacy in selected patients suffering from recurrent glioblastoma multiforme.Keywords
This publication has 27 references indexed in Scilit:
- Hypofractionated stereotactic radiotherapy in the management of recurrent gliomaInternational Journal of Radiation Oncology*Biology*Physics, 1997
- Radiosurgery for the treatment of previously irradiated recurrent primary brain tumors and brain metastases: Initial report of radiation therapy oncology group protocol 90-05International Journal of Radiation Oncology*Biology*Physics, 1996
- Stereotactic radiosurgery as an adjunct to surgery and external beam radiotherapy in the treatment of patients with malignant gliomasInternational Journal of Radiation Oncology*Biology*Physics, 1995
- Radiosurgery in the initial management of malignant gliomas: Survival comparison with the RTOG recursive partitioning analysisInternational Journal of Radiation Oncology*Biology*Physics, 1995
- Stereotactic radiosurgery for glioblastoma: a final report of 31 patientsJournal of Neurosurgery, 1995
- Permanent Iodine-125 Implants in the Up-front Treatment of Malignant GliomasNeurosurgery, 1995
- Comparison of Stereotactic Radiosurgery and Brachytherapy in the Treatment of Recurrent Glioblastoma MultiformeNeurosurgery, 1995
- Early Postoperative Magnetic Resonance Imaging after Resection of Malignant Glioma: Objective Evaluation of Residual Tumor and Its Influence on Regrowth and PrognosisNeurosurgery, 1994
- Correction of Spatial Distortion in MR ImagingJournal of Computer Assisted Tomography, 1987
- Nonparametric Estimation from Incomplete ObservationsJournal of the American Statistical Association, 1958