Factors involved in maintaining Karnofsky Performance Status (≥ 50%) in glioblastoma, IDH-wildtype patients treated with temozolomide and radiotherapy

Abstract Karnofsky Performance Status (KPS) is a widely used scale to assess performance status. KPS ≥ 50% implies that patients can live at home. Therefore, maintaining KPS ≥ 50% is important to improve the quality of life of patients with glioblastoma, whose median survival is less than 2 years. T...

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Main Authors: Shigeo Ohba, Takao Teranishi, Kazuyasu Matsumura, Masanobu Kumon, Daijiro Kojima, Eiji Fujiwara, Kazutaka Nakao, Kiyonori Kuwahara, Kazuhiro Murayama, Eriel Sandika Pareira, Seiji Yamada, Masahiro Joko, Shunsuke Nakae, Jun Muto, Yuya Nishiyama, Kazuhide Adachi, Hikaru Sasaki, Masato Abe, Mitsuhiro Hasegawa, Yuichi Hirose
Format: Article
Language:English
Published: Nature Portfolio 2025-01-01
Series:Scientific Reports
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Online Access:https://doi.org/10.1038/s41598-025-85339-x
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author Shigeo Ohba
Takao Teranishi
Kazuyasu Matsumura
Masanobu Kumon
Daijiro Kojima
Eiji Fujiwara
Kazutaka Nakao
Kiyonori Kuwahara
Kazuhiro Murayama
Eriel Sandika Pareira
Seiji Yamada
Masahiro Joko
Shunsuke Nakae
Jun Muto
Yuya Nishiyama
Kazuhide Adachi
Hikaru Sasaki
Masato Abe
Mitsuhiro Hasegawa
Yuichi Hirose
author_facet Shigeo Ohba
Takao Teranishi
Kazuyasu Matsumura
Masanobu Kumon
Daijiro Kojima
Eiji Fujiwara
Kazutaka Nakao
Kiyonori Kuwahara
Kazuhiro Murayama
Eriel Sandika Pareira
Seiji Yamada
Masahiro Joko
Shunsuke Nakae
Jun Muto
Yuya Nishiyama
Kazuhide Adachi
Hikaru Sasaki
Masato Abe
Mitsuhiro Hasegawa
Yuichi Hirose
author_sort Shigeo Ohba
collection DOAJ
description Abstract Karnofsky Performance Status (KPS) is a widely used scale to assess performance status. KPS ≥ 50% implies that patients can live at home. Therefore, maintaining KPS ≥ 50% is important to improve the quality of life of patients with glioblastoma, whose median survival is less than 2 years. This study aimed to identify the factors associated with survival time with maintenance of KPS ≥ 50% (survival with KPS ≥ 50%) in patients with glioblastoma, IDH-wildtype. Ninety-eight patients with glioblastomas, IDH-wildtype, who were treated with concomitant radiotherapy (RT) and temozolomide (TMZ) followed by maintenance TMZ therapy, and whose KPS at the start of RT was ≥ 50%, were included. The median survival with KPS ≥ 50% was 13.3 months. In univariate analysis, preoperative KPS (≥ 80%), KPS at the start of RT (≥ 80%), residual tumor size (< 2 cm3), methylated MGMT promotor, and implantation of BCNU wafer were associated with survival with KPS ≥ 50%. In multivariate analysis, KPS at the start of RT (≥ 80%), methylated MGMT promotor, and residual tumor size (< 2 cm3) were significantly associated with increased survival with KPS ≥ 50%. A strategy of maximum possible tumor resection without compromising KPS is desirable to prolong the survival time with KPS ≥ 50%.
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spelling doaj-art-61f5d0ce26074aa9a7f6b65752b7bd772025-01-12T12:17:00ZengNature PortfolioScientific Reports2045-23222025-01-011511910.1038/s41598-025-85339-xFactors involved in maintaining Karnofsky Performance Status (≥ 50%) in glioblastoma, IDH-wildtype patients treated with temozolomide and radiotherapyShigeo Ohba0Takao Teranishi1Kazuyasu Matsumura2Masanobu Kumon3Daijiro Kojima4Eiji Fujiwara5Kazutaka Nakao6Kiyonori Kuwahara7Kazuhiro Murayama8Eriel Sandika Pareira9Seiji Yamada10Masahiro Joko11Shunsuke Nakae12Jun Muto13Yuya Nishiyama14Kazuhide Adachi15Hikaru Sasaki16Masato Abe17Mitsuhiro Hasegawa18Yuichi Hirose19Department of Neurosurgery, Fujita Health University School of MedicineDepartment of Neurosurgery, Fujita Health University School of MedicineDepartment of Neurosurgery, Fujita Health University School of MedicineDepartment of Neurosurgery, Fujita Health University School of MedicineDepartment of Neurosurgery, Fujita Health University School of MedicineDepartment of Neurosurgery, Fujita Health University School of MedicineDepartment of Neurosurgery, Fujita Health University School of MedicineDepartment of Neurosurgery, Fujita Health University School of MedicineDepartment of Radiology, Fujita Health University School of MedicineDepartment of Neurosurgery, Keio University School of MedicineDepartment of Diagnostic Pathology, Fujita Health University School of MedicineDepartment of Neurosurgery, Fujita Health University School of MedicineDepartment of Neurosurgery, Fujita Health University School of MedicineDepartment of Neurosurgery, Fujita Health University School of MedicineDepartment of Neurosurgery, Fujita Health University School of MedicineDepartment of Neurosurgery, Fujita Health University School of MedicineDepartment of Neurosurgery, Tokyo Dental College Ichikawa General HospitalDepartment of Pathology, Fujita Health University School of Health SciencesDepartment of Neurosurgery, Fujita Health University School of MedicineDepartment of Neurosurgery, Fujita Health University School of MedicineAbstract Karnofsky Performance Status (KPS) is a widely used scale to assess performance status. KPS ≥ 50% implies that patients can live at home. Therefore, maintaining KPS ≥ 50% is important to improve the quality of life of patients with glioblastoma, whose median survival is less than 2 years. This study aimed to identify the factors associated with survival time with maintenance of KPS ≥ 50% (survival with KPS ≥ 50%) in patients with glioblastoma, IDH-wildtype. Ninety-eight patients with glioblastomas, IDH-wildtype, who were treated with concomitant radiotherapy (RT) and temozolomide (TMZ) followed by maintenance TMZ therapy, and whose KPS at the start of RT was ≥ 50%, were included. The median survival with KPS ≥ 50% was 13.3 months. In univariate analysis, preoperative KPS (≥ 80%), KPS at the start of RT (≥ 80%), residual tumor size (< 2 cm3), methylated MGMT promotor, and implantation of BCNU wafer were associated with survival with KPS ≥ 50%. In multivariate analysis, KPS at the start of RT (≥ 80%), methylated MGMT promotor, and residual tumor size (< 2 cm3) were significantly associated with increased survival with KPS ≥ 50%. A strategy of maximum possible tumor resection without compromising KPS is desirable to prolong the survival time with KPS ≥ 50%.https://doi.org/10.1038/s41598-025-85339-xGlioblastomaKarnofsky Performance StatusMGMTRadiotherapyTemozolomideTumor size
spellingShingle Shigeo Ohba
Takao Teranishi
Kazuyasu Matsumura
Masanobu Kumon
Daijiro Kojima
Eiji Fujiwara
Kazutaka Nakao
Kiyonori Kuwahara
Kazuhiro Murayama
Eriel Sandika Pareira
Seiji Yamada
Masahiro Joko
Shunsuke Nakae
Jun Muto
Yuya Nishiyama
Kazuhide Adachi
Hikaru Sasaki
Masato Abe
Mitsuhiro Hasegawa
Yuichi Hirose
Factors involved in maintaining Karnofsky Performance Status (≥ 50%) in glioblastoma, IDH-wildtype patients treated with temozolomide and radiotherapy
Scientific Reports
Glioblastoma
Karnofsky Performance Status
MGMT
Radiotherapy
Temozolomide
Tumor size
title Factors involved in maintaining Karnofsky Performance Status (≥ 50%) in glioblastoma, IDH-wildtype patients treated with temozolomide and radiotherapy
title_full Factors involved in maintaining Karnofsky Performance Status (≥ 50%) in glioblastoma, IDH-wildtype patients treated with temozolomide and radiotherapy
title_fullStr Factors involved in maintaining Karnofsky Performance Status (≥ 50%) in glioblastoma, IDH-wildtype patients treated with temozolomide and radiotherapy
title_full_unstemmed Factors involved in maintaining Karnofsky Performance Status (≥ 50%) in glioblastoma, IDH-wildtype patients treated with temozolomide and radiotherapy
title_short Factors involved in maintaining Karnofsky Performance Status (≥ 50%) in glioblastoma, IDH-wildtype patients treated with temozolomide and radiotherapy
title_sort factors involved in maintaining karnofsky performance status ≥ 50 in glioblastoma idh wildtype patients treated with temozolomide and radiotherapy
topic Glioblastoma
Karnofsky Performance Status
MGMT
Radiotherapy
Temozolomide
Tumor size
url https://doi.org/10.1038/s41598-025-85339-x
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