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Biopsy versus partial versus gross total resection in older patients with high-grade glioma: a systematic review and meta-analysis.

Abstract：

BACKGROUND:Optimal extent of surgical resection (EOR) of high-grade gliomas (HGGs) remains uncertain in the elderly given the unclear benefits and potentially higher rates of mortality and morbidity associated with more extensive degrees of resection. METHODS:We undertook a meta-analysis according to a predefined protocol and systematically searched literature databases for reports about HGG EOR. Elderly patients (≥60 y) undergoing biopsy, subtotal resection (STR), and gross total resection (GTR) were compared for the outcome measures of overall survival (OS), postoperative karnofsky performance status (KPS), progression-free survival (PFS), mortality, and morbidity. Treatment effects as pooled estimates, mean differences (MDs), or risk ratios (RRs) with corresponding 95% confidence intervals (CIs) were determined using random effects modeling. RESULTS:A total of 12 607 participants from 34 studies met eligibility criteria, including our current cohort of 211 patients. When comparing overall resection (of any extent) with biopsy, in favor of the resection group were OS (MD 3.88 mo, 95% CI: 2.14-5.62, P < .001), postoperative KPS (MD 10.4, 95% CI: 6.58-14.22, P < .001), PFS (MD 2.44 mo, 95% CI: 1.45-3.43, P < .001), mortality (RR = 0.27, 95% CI: 0.12-0.61, P = .002), and morbidity (RR = 0.82, 95% CI: 0.46-1.46, P = .514) . GTR was significantly superior to STR in terms of OS (MD 3.77 mo, 95% CI: 2.26-5.29, P < .001), postoperative KPS (MD 4.91, 95% CI: 0.91-8.92, P = .016), and PFS (MD 2.21 mo, 95% CI: 1.13-3.3, P < .001) with no difference in mortality (RR = 0.53, 95% CI: 0.05-5.71, P = .600) or morbidity (RR = 0.52, 95% CI: 0.18-1.49, P = .223). CONCLUSIONS:Our findings suggest an upward improvement in survival time, functional recovery, and tumor recurrence rate associated with increasing extents of safe resection. These benefits did not result in higher rates of mortality or morbidity if considered in conjunction with known established safety measures when managing elderly patients harboring HGGs.

journal_name

Neuro Oncol

journal_title

Neuro-oncology

authors

Almenawer SA,Badhiwala JH,Alhazzani W,Greenspoon J,Farrokhyar F,Yarascavitch B,Algird A,Kachur E,Cenic A,Sharieff W,Klurfan P,Gunnarsson T,Ajani O,Reddy K,Singh SK,Murty NK

doi

10.1093/neuonc/nou349

subject

Has Abstract

pub_date

2015-06-01 00:00:00

pages

868-81

issue

eissn

1522-8517

issn

1523-5866

pii

nou349

journal_volume

pub_type

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Biopsy versus partial versus gross total resection in older patients with high-grade glioma: a systematic review and meta-analysis.