Comparison of Survival Outcomes Between Partial Resection and Biopsy for Primary Glioblastoma: A Propensity Score-Matched Study.

Abstract:

OBJECTIVES:Gross total resection for glioblastoma (GBM) has been associated with better prognosis. However, it is not always feasible, and the threshold for the extent of resection required for better prognosis has been controversial. Therefore, we compared the survival and clinical outcomes of patients with GBM who had undergone partial resection (PR) or biopsy. METHODS:Of the 110 patients, 32 and 78, who had undergone PR and biopsy, respectively, were enrolled to identify any differences in clinical outcomes. No differences were found in patient demographics between the 2 groups, except for tumor location and mean tumor volume (P = 0.02 and P < 0.01, respectively). Propensity score matching between the PR and biopsy groups was performed, in which 20 patients each in the PR and biopsy groups were matched. RESULTS:The overall survival (OS) and progression-free survival (PFS) did not differ significantly between the PR and biopsy groups (P = 0.84 and P = 0.48, respectively). After propensity score matching, the differences in OS and PFS between the 2 groups were still not statistically significant (P = 0.51 and P = 0.75, respectively). The hazard ratios for OS and PFS for the PR group compared with biopsy were 0.98 and 0.73, respectively; however, the difference was not statistically significant (P = 0.96 and P = 0.39, respectively). The surgical complication rate was greater in the PR group (14 of 32; 43.7%) than in the biopsy group (9 of 78; 11.5%; P < 0.01). CONCLUSIONS:PR failed to improve survival compared with biopsy for patients with GBM. Moreover, the surgical complication rate in the PR group was greater than that in the biopsy group.

journal_name

World Neurosurg

journal_title

World neurosurgery

authors

Byun J,Kim YH,Nam SJ,Park JE,Cho YH,Kim HS,Hong SH,Kim JH,Kim SJ,Kim CJ

doi

10.1016/j.wneu.2018.09.237

subject

Has Abstract

pub_date

2019-01-01 00:00:00

pages

e858-e866

eissn

1878-8750

issn

1878-8769

pii

S1878-8750(18)32292-7

journal_volume

121

pub_type

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