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Lizunou Y, Potthoff AL, Schäfer N, Waha A, Borger V, Herrlinger U, Vatter H, Schuss P, Schneider M. Cerebellar glioblastoma in adults: a comparative single-center matched pair analysis and systematic review of the literature. J Cancer Res Clin Oncol 2024; 150:432. [PMID: 39340649 PMCID: PMC11438707 DOI: 10.1007/s00432-024-05959-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2024] [Accepted: 09/17/2024] [Indexed: 09/30/2024]
Abstract
PURPOSE The rarity of cerebellar glioblastoma presents a significant challenge in clinical practice due to the lack of extensive prognostic data on long-term survival rates, rendering it an underrepresented entity compared to its supratentorial counterpart. This study aims to analyze potential differences in survival outcome between patients with cerebellar and supratentorial glioblastomas. METHODS From 2009 to 2020, 8 patients underwent surgical treatment for cerebellar glioblastoma at the authors' institution. These patients were individually matched with a cohort of 205 consecutive patients from our institutional database with supratentorial glioblastoma, taking into account key prognostic parameters. Progression-free survival (PFS) and overall survival (OS) rates were compared. Additionally, we performed a systematic literature review to compile further survival data on cerebellar glioblastoma patients. RESULTS The median OS for cerebellar glioblastoma patients was 18 months (95% CI 11-25). The balanced matched-pair analysis showed no significant difference in survival when compared to patients with supratentorial glioblastoma, exhibiting a median OS of 23 months (95% CI 0-62) (p = 0.63). Respective values for PFS were 8 months (95% CI 4-12) for cerebellar and 7 months (95% CI 0-16) for supratentorial glioblastoma (p = 0.2). The systematic review revealed that median OS for cerebellar glioblastoma in current literature ranges from 7 to 21 months. CONCLUSIONS The present findings indicate that patients with supra- and infratentorial glioblastoma do not significantly differ in regard to survival outcome parameters. This similarity in prognosis might encourage clinicians to consider surgical interventions for both supra- and infratentorial glioblastoma in a similar manner.
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Affiliation(s)
- Yauhen Lizunou
- Department of Neurosurgery, University Hospital Bonn, Bonn, Germany.
| | | | - Niklas Schäfer
- Department of Neurology, Devision of Neurooncology, University Hospital Bonn, Bonn, Germany
| | - Andreas Waha
- Department of Neuropathology, University Hospital Bonn, Bonn, Germany
| | - Valeri Borger
- Department of Neurosurgery, University Hospital Bonn, Bonn, Germany
| | - Ulrich Herrlinger
- Department of Neurology, Devision of Neurooncology, University Hospital Bonn, Bonn, Germany
| | - Hartmut Vatter
- Department of Neurosurgery, University Hospital Bonn, Bonn, Germany
| | - Patrick Schuss
- Department of Neurosurgery, University Hospital Bonn, Bonn, Germany
- Department of Neurosurgery, Unfallkrankenhaus Berlin, Berlin, Germany
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Kahl KH, Krauss PE, Neu M, Maurer CJ, Schill-Reiner S, Roushan Z, Laukmanis E, Dobner C, Janzen T, Balagiannis N, Sommer B, Stüben G, Shiban E. Intraoperative radiotherapy after neurosurgical resection of brain metastases as institutional standard treatment- update of the oncological outcome form a single center cohort after 117 procedures. J Neurooncol 2024; 169:187-193. [PMID: 38963657 PMCID: PMC11269407 DOI: 10.1007/s11060-024-04691-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2024] [Accepted: 04/18/2024] [Indexed: 07/05/2024]
Abstract
PURPOSE Stereotactic radiotherapy (SRT) is the predominant method for the irradiation of resection cavities after resection of brain metastases (BM). Intraoperative radiotherapy (IORT) with 50 kV x-rays is an alternative way to irradiate the resection cavity focally. We have already reported the outcome of our first 40 IORT patients treated until 2020. Since then, IORT has become the predominant cavity treatment in our center due to patients´ choice. METHODS We retrospectively analyzed the outcomes of all patients who underwent resection of BM and IORT between 2013 and August 2023 at Augsburg University Medical Center (UKA). RESULTS We identified 105 patients with 117 resected BM treated with 50 kV x-ray IORT. Median diameter of the resected metastases was 3.1 cm (range 1.3 - 7.0 cm). Median applied dose was 20 Gy. All patients received standardized follow-up (FU) including three-monthly MRI of the brain. Mean FU was 14 months, with a median MRI FU for patients alive of nine months. Median overall survival (OS) of all treated patients was 18.2 months (estimated 1-year OS 57.7%). The observed local control (LC) rate of the resection cavity was 90.5% (estimated 1-year LC 84.2%). Distant brain control (DC) was 61.9% (estimated 1-year DC 47.9%). Only 16.2% of all patients needed WBI in the further course of disease. The observed radio necrosis rate was 2.6%. CONCLUSION After 117 procedures IORT still appears to be a safe and appealing way to perform cavity RT after neurosurgical resection of BM with low toxicity and excellent LC.
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Affiliation(s)
- Klaus-Henning Kahl
- Department of Radiotherapy and Radio- Oncology, University Medical Center Augsburg, Augsburg, Germany.
| | - Philipp E Krauss
- Department of Neurosurgery, University Medical Center Augsburg, Augsburg, Germany
| | - Maria Neu
- Department of Radiotherapy and Radio- Oncology, University Medical Center Augsburg, Augsburg, Germany
| | - Christoph J Maurer
- Department of Diagnostic and Interventional Radiology and Neuroradiology, University Medical Center Augsburg, Augsburg, Germany
| | - Sabine Schill-Reiner
- Department of Medical Physics and Radiation Protection, University Medical Center Augsburg, Augsburg, Germany
| | - Zoha Roushan
- Department of Medical Physics and Radiation Protection, University Medical Center Augsburg, Augsburg, Germany
| | - Eva Laukmanis
- Department of Medical Physics and Radiation Protection, University Medical Center Augsburg, Augsburg, Germany
| | - Christian Dobner
- Department of Medical Physics and Radiation Protection, University Medical Center Augsburg, Augsburg, Germany
| | - Tilman Janzen
- Department of Medical Physics and Radiation Protection, University Medical Center Augsburg, Augsburg, Germany
| | - Nikolaos Balagiannis
- Department of Radiotherapy and Radio- Oncology, University Medical Center Augsburg, Augsburg, Germany
| | - Björn Sommer
- Department of Neurosurgery, University Medical Center Augsburg, Augsburg, Germany
| | - Georg Stüben
- Department of Radiotherapy and Radio- Oncology, University Medical Center Augsburg, Augsburg, Germany
| | - Ehab Shiban
- Department of Neurosurgery, University Medical Center Augsburg, Augsburg, Germany
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Layer JP, Shiban E, Brehmer S, Diehl CD, de Castro DG, Hamed M, Dejonckheere CS, Cifarelli DT, Friker LL, Herrlinger U, Hölzel M, Vatter H, Schneider M, Combs SE, Schmeel LC, Cifarelli CP, Giordano FA, Sarria GR, Kahl KH. Multicentric Assessment of Safety and Efficacy of Combinatorial Adjuvant Brain Metastasis Treatment by Intraoperative Radiation Therapy and Immunotherapy. Int J Radiat Oncol Biol Phys 2024; 118:1552-1562. [PMID: 38199383 DOI: 10.1016/j.ijrobp.2024.01.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Revised: 01/01/2024] [Accepted: 01/03/2024] [Indexed: 01/12/2024]
Abstract
PURPOSE After surgical resection of brain metastases (BMs), intraoperative radiation therapy (IORT) provides a promising alternative to adjuvant external beam radiation therapy by enabling superior organ-at-risk preservation, reduction of in-hospital times, and timely admission to subsequent systemic treatments, which increasingly comprise novel targeted immunotherapeutic approaches. We sought to assess the safety and efficacy of IORT in combination with immune checkpoint inhibitors (ICIs) and other targeted therapies (TTs). METHODS AND MATERIALS In a multicentric approach incorporating individual patient data from 6 international IORT centers, all patients with BMs undergoing IORT were retrospectively assessed for combinatorial treatment with ICIs/TTs and evaluated for toxicity and cumulative rates, including wound dehiscence, radiation necrosis, leptomeningeal spread, local control, distant brain progression (DBP), and estimated overall survival. RESULTS In total, 103 lesions with a median diameter of 34 mm receiving IORT combined with immunomodulatory systemic treatment or other TTs were included. The median follow-up was 13.2 (range, 1.2-102.4) months, and the median IORT dose was 25 (range, 18-30) Gy prescribed to the applicator surface. There was 1 grade 3 adverse event related to IORT recorded (2.2%). A 4.9% cumulative radiation necrosis rate was observed. The 1-year local control rate was 98.0%, and the 1-year DBP-free survival rate was 60.0%. Median time to DBP was 5.5 (range, 1.0-18.5) months in the subgroup of patients experiencing DBP, and the cumulative leptomeningeal spread rate was 4.9%. The median estimated overall survival was 26 (range, 1.2 to not reached) months with a 1-year survival rate of 74.0%. Early initiation of immunotherapy/TTs was associated with a nonsignificant trend toward improved DBP rate and overall survival. CONCLUSIONS The combination of ICIs/TTs with IORT for resected BMs does not seem to increase toxicity and yields encouraging local control outcomes in the difficult-to-treat subgroup of larger BMs. Time gaps between surgery and systemic treatment could be shortened or avoided. The definitive role of IORT in local control after BM resection will be defined in a prospective trial.
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Affiliation(s)
- Julian P Layer
- Department of Radiation Oncology, University Hospital Bonn, Bonn, Germany; Institute of Experimental Oncology, University Hospital Bonn, Bonn, Germany
| | - Ehab Shiban
- Department of Neurosurgery, University Hospital Augsburg, Augsburg, Germany
| | - Stefanie Brehmer
- Department of Neurosurgery, University Medical Center Mannheim, Mannheim, Germany
| | - Christian D Diehl
- Department of Radiation Oncology, Klinikum Rechts der Isar, Technical University of Munich, Munich, Germany
| | | | - Motaz Hamed
- Department of Neurosurgery, University Hospital Bonn, Bonn, Germany
| | - Cas S Dejonckheere
- Department of Radiation Oncology, University Hospital Bonn, Bonn, Germany
| | - Daniel T Cifarelli
- Department of Neurosurgery, West Virginia University, Morgantown, West Virginia
| | - Lea L Friker
- Institute of Experimental Oncology, University Hospital Bonn, Bonn, Germany; Institute of Neuropathology, University Hospital Bonn, Bonn, Germany
| | - Ulrich Herrlinger
- Division of Clinical Neuro-Oncology, Department of Neurology, University Hospital Bonn, Bonn, Germany
| | - Michael Hölzel
- Institute of Experimental Oncology, University Hospital Bonn, Bonn, Germany
| | - Hartmut Vatter
- Department of Neurosurgery, University Hospital Bonn, Bonn, Germany
| | | | - Stephanie E Combs
- Department of Radiation Oncology, Klinikum Rechts der Isar, Technical University of Munich, Munich, Germany
| | | | | | - Frank A Giordano
- Department of Radiation Oncology, University Medical Center Mannheim, Mannheim, Germany; DKFZ-Hector Cancer Institute of the University Medical Center Mannheim, Mannheim, Germany; Mannheim Institute of Intelligent Systems in Medicine (MIISM), Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - Gustavo R Sarria
- Department of Radiation Oncology, University Hospital Bonn, Bonn, Germany.
| | - Klaus-Henning Kahl
- Department of Radiooncology, University Hospital Augsburg, Augsburg, Germany
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