Patient outcomes of whole brain radiotherapy for brain metastases versus leptomeningeal metastases: A retrospective study.

Abstract:

AIM:Important factors typically associated with prognosis in brain metastases include Karnofsky performance status (KPS), extracranial or cerebellar localization and combination chemotherapy. However, few studies investigated the prognostic role of leptomeningeal metastases (LM) following whole brain radiotherapy (WBRT). On the basis of our experience suggesting better survival of asymptomatic patients with LM than those with brain metastases, we herein evaluated LM as a prognostic factor after WBRT. METHODS:Medical records of 206 patients (median age, 65 years) who received WBRT in 2007-2015 were retrospectively reviewed. The two most common cancers were of lung, breast origin in 78.5%, 10%, patients, respectively. Patients received parallel-opposed WBRT, with a dose of 20-40 Gy. Additional doses of 9-12 Gy were used in patients who were operated on or had single metastases. Overall survival (OS) was determined, and clinical parameters including age, KPS, symptoms, radiation dose, dose per fraction, type of metastasis, extracranial metastases, primary status and surgery plus WBRT were assessed as prognostic factors. RESULTS:The median survival was 6 months (range, 1-100), and 1- and 2-year survival rates were 28% and 17%, respectively. In univariate analysis, improved survival was associated with KPS of ≥70, absence of symptoms, radiation dose of ≥37.5 Gy, favorable primary lesion, LM, and surgery plus WBRT. Multivariate analysis revealed that these factors with the exception of radiation dose was significant prognostic factors for OS. CONCLUSION:We found that LM were independent prognostic factors for good clinical outcomes.

journal_name

Asia Pac J Clin Oncol

authors

Sakaguchi M,Maebayashi T,Aizawa T,Ishibashi N,Saito T

doi

10.1111/ajco.12597

subject

Has Abstract

pub_date

2017-10-01 00:00:00

pages

e449-e457

issue

5

eissn

1743-7555

issn

1743-7563

journal_volume

13

pub_type

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