A Permanent but Not Transient Postoperative Deficit Has Impact on OS and PFS in IDHwt-Glioma Patients

Area of Science:

• Neuro-oncology
• Surgical Neurology
• Clinical Outcomes Research

Background:

• Neurological deficits are common after glioma resection but often improve.
• Understanding the prognostic significance of transient versus persistent deficits is crucial.

Purpose of the Study:

• To investigate the differential association of transient and persistent postoperative neurological deficits with overall survival (OS) and progression-free survival (PFS) in glioma patients.
• To explore the influence of IDH mutation status on these associations.

Main Methods:

• Retrospective review of 496 patients undergoing initial glioma surgery.
• Evaluation of neurological function via clinical examinations pre-surgery, post-surgery, and at 3-6 month follow-up.
• Analysis of associations between deficit status and survival outcomes, stratified by IDH mutation status.

Main Results:

• Preoperative deficits did not significantly correlate with OS.
• Resolved postoperative deficits showed no association with OS or PFS, regardless of IDH status.
• Persistent or new deficits at follow-up were independently linked to shorter OS and PFS in IDH-wild-type gliomas (p < 0.001), but not in IDH-mutant gliomas.

Conclusions:

• Temporary neurological deficits post-glioma surgery do not negatively impact survival.
• Persistent or new neurological deficits are significant indicators of poor prognosis in IDH-wild-type gliomas.
• IDH mutation status is a critical factor in determining the prognostic value of postoperative neurological deficits.