Brain Metastases and Treatment Open access Peer reviewed

Postoperative functional status as the primary determinant of survival in surgically treated brain metastases: A retrospective cohort analysis

Mehmet Özgür Özateş, Kadir Çetinkaya, Yasar Ünsal, Murat Kaplan and 2 more

Medical Journal of Western Black Sea | Aug 31, 2026

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Initial univariable screening showed that survival was significantly linked to factors such as patient age, gender, adjuvant therapies, and KPS measured at different perioperative stages, which showed that survival was significantly linked to factors such as patient age, gender, adjuvant therapies, and KPS measured at different perioperative stages.

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Aim: Brain metastases (BM) are an increasing oncological challenge due to improved systemic cancer survival. Surgical resection is essential for symptom control and diagnosis; however, survival outcomes remain heterogeneous. The objective of the current investigation was to evaluate the clinical and surgical determinants that impact overall survival (OS) outcomes in a cohort of patients undergoing resection for BM.Material and Methods: A total of 158 adult cases treated surgically for intracranial metastases from January 2018 to December 2024 were systematically analyzed through a retrospective institutional review. Demographic, clinical, radiological, and surgical variables were analyzed. OS was the primary endpoint. The Kaplan-Meier method was utilized for survival estimation, while the influence of various covariates on prognosis was examined through Cox proportional hazards modeling. The Tarone-Ware test was used to assess early survival differences. Results: Our analysis revealed a median survival time of 6.0 months. Initial univariable screening showed that survival was significantly linked to factors such as patient age, gender, adjuvant therapies, and KPS measured at different perioperative stages. In the revised multivariable analysis, postoperative KPS (HR: 0.974, 95% CI: 0.962-0.986, p

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Mehmet Özgür Özateş

first | Ankara University | ORCID 0000-0002-2051-7766

Kadir Çetinkaya

middle | Hitit Üniversitesi | ORCID 0000-0003-4490-8267

Yasar Ünsal

middle | Bilkent University | ORCID 0009-0006-8655-4718

Murat Kaplan

middle | Bilkent University | ORCID 0009-0007-8325-2164

Tugrul Sensoy

middle | Hitit Üniversitesi

Erva Eser

last | University of Turku | ORCID 0000-0002-9827-6288

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@article{zate2026Postoperative,
  title = {Postoperative functional status as the primary determinant of survival in surgically treated brain metastases: A retrospective cohort analysis},
  author = {Mehmet Özgür Özateş and Kadir Çetinkaya and Yasar Ünsal and Murat Kaplan and Tugrul Sensoy and Erva Eser},
  journal = {Medical Journal of Western Black Sea},
  year = {2026},
  doi = {10.29058/mjwbs.1949238},
  url = {https://doi.org/10.29058/mjwbs.1949238}
}

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