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Prognostic Factors for Patients With Brain Metastases Treated With Single-fraction Gamma Knife Radiosurgery. 2021

Tomoyuki Noyama, and Atsuto Katano, and Yuki Shinya, and Mariko Kawashima, and Masahiro Shin, and Nobuhito Saito, and Hideomi Yamashita
Department of Radiology, The University of Tokyo Hospital, Tokyo, Japan.

OBJECTIVE The aim of this study was to identify prognostic factors for brain metastases treated with Gamma knife radiosurgery. METHODS Multivariate Cox proportional hazards regression analyses were conducted for patients who received treatment between June 2013 and March 2018. RESULTS A total of 131 consecutive patients were included. The median follow-up period was 16.0 months (range=1.5-61.5 months). Brain metastases [hazard ratio (HR)=0.42, 95%CI=0.27-0.67, p<0.001], history of systemic therapy (HR=2.23, 95%CI=1.28-3.89, p=0.005), and active extracranial disease (HR=2.49, 95%CI=1.30-4.76, p=0.006) were independent predictors of overall survival. Number of brain metastases (HR=0.39, 95%CI=0.26-0.59, p<0.001) and history of systemic therapy (HR=1.90, 95%CI=1.17-3.08, p=0.005) were independent predictors of intracranial progression-free survival. CONCLUSIONS The number of brain metastases and the history of systemic therapy are associated with patient overall survival and intracranial progression-free survival.

UI MeSH Term Description Entries
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D009362 Neoplasm Metastasis The transfer of a neoplasm from one organ or part of the body to another remote from the primary site. Metastase,Metastasis,Metastases, Neoplasm,Metastasis, Neoplasm,Neoplasm Metastases,Metastases
D011379 Prognosis A prediction of the probable outcome of a disease based on a individual's condition and the usual course of the disease as seen in similar situations. Prognostic Factor,Prognostic Factors,Factor, Prognostic,Factors, Prognostic,Prognoses
D001932 Brain Neoplasms Neoplasms of the intracranial components of the central nervous system, including the cerebral hemispheres, basal ganglia, hypothalamus, thalamus, brain stem, and cerebellum. Brain neoplasms are subdivided into primary (originating from brain tissue) and secondary (i.e., metastatic) forms. Primary neoplasms are subdivided into benign and malignant forms. In general, brain tumors may also be classified by age of onset, histologic type, or presenting location in the brain. Brain Cancer,Brain Metastases,Brain Tumors,Cancer of Brain,Malignant Primary Brain Tumors,Neoplasms, Intracranial,Benign Neoplasms, Brain,Brain Neoplasm, Primary,Brain Neoplasms, Benign,Brain Neoplasms, Malignant,Brain Neoplasms, Malignant, Primary,Brain Neoplasms, Primary Malignant,Brain Tumor, Primary,Brain Tumor, Recurrent,Cancer of the Brain,Intracranial Neoplasms,Malignant Neoplasms, Brain,Malignant Primary Brain Neoplasms,Neoplasms, Brain,Neoplasms, Brain, Benign,Neoplasms, Brain, Malignant,Neoplasms, Brain, Primary,Primary Brain Neoplasms,Primary Malignant Brain Neoplasms,Primary Malignant Brain Tumors,Benign Brain Neoplasm,Benign Brain Neoplasms,Benign Neoplasm, Brain,Brain Benign Neoplasm,Brain Benign Neoplasms,Brain Cancers,Brain Malignant Neoplasm,Brain Malignant Neoplasms,Brain Metastase,Brain Neoplasm,Brain Neoplasm, Benign,Brain Neoplasm, Malignant,Brain Neoplasms, Primary,Brain Tumor,Brain Tumors, Recurrent,Cancer, Brain,Intracranial Neoplasm,Malignant Brain Neoplasm,Malignant Brain Neoplasms,Malignant Neoplasm, Brain,Neoplasm, Brain,Neoplasm, Intracranial,Primary Brain Neoplasm,Primary Brain Tumor,Primary Brain Tumors,Recurrent Brain Tumor,Recurrent Brain Tumors,Tumor, Brain
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000077982 Progression-Free Survival Length of time during and after the treatment of a disease, such as cancer, that a patient lives with the disease but the disease does not get worse. Event-Free Survival,Event Free Survival,Progression Free Survival,Survival, Event-Free,Survival, Progression-Free
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D000368 Aged A person 65 years of age or older. For a person older than 79 years, AGED, 80 AND OVER is available. Elderly

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