ArticleCancers2026
Two-Stage Surgery in Patients with Diffuse Glioma-Indications, Implications and Outcome.
Article in Cancers, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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5 authors.
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Abstract
introductionSignificant studies have substantiated the evidence for complete resection of intrinsic brain tumours in recent years. However, achieving this through a single surgery is not always possible due to tumour localisation in eloquent areas. Therefore, the present analysis aimed to evaluate surgical outcomes in a cohort of patients undergoing planned two-stage glioma surgery.
methodsPatients who underwent surgery for diffusely infiltrating brain tumours between 2013 and 2023 at the Department of Neurosurgery at Düsseldorf University Hospital were screened for undergoing two-stage surgery, defined by
resultsOf 1558 patients with glioma, 447 underwent multiple surgeries, of whom 36 underwent planned two-stage surgery during the course of their disease. Two-stage surgery was performed mostly as glioma surgery at first diagnosis (75%). The mean time between the first and second surgery was 11.67 days (±7.59). Two-stage surgery was performed due to various reasons, mostly in localisations that required multifocal approaches (47.2%), due to non-compliance during initial awake surgery (30.6%), or cases with primary debulking for subsequent awake-surgery approaches (22.2%). Tumours were mainly located in the left hemisphere (50%) (right hemisphere 25%, or bilateral 25%) and motor- or speech-eloquent in 61.11%. Tumours were 72.2% IDH-wildtype. An intended complete resection result was achieved in 58.88% after the second surgery, changing from 93.94% submaximal resection to 58.88% supramaximal and maximal resection after the second surgery. Second surgery significantly reduced residual tumour volume of both T1-CE (Wilcoxon signed-rank test, Z = -4.62,
conclusionPlanned two-stage surgery was mostly performed as a surgical strategy in eloquent locations to achieve supramaximal or maximal resection. A two-staged surgery significantly extended resection results without neurological and functional deterioration. Despite relevant complication rates, primary debulking followed by staged resection as well as two-staged multifocal approaches may yield a favourable risk-benefit profile.
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