• Journal of neurosurgery · Jun 2024

    Multicenter Study

    Obesity and meningioma: a US population-based study paired with analysis of a multi-institutional cohort.

    • Rushmin Khazanchi, Khizar R Nandoliya, Maryam N Shahin, Ali I Rae, Rahul K Chaliparambil, Stephen G Bowden, Amr Alwakeal, Christian G Lopez Ramos, Brittany Stedelin, Mark W Youngblood, James P Chandler, Rimas V Lukas, Olabisi R Sanusi, Aclan Dogan, Matthew D Wood, Seunggu J Han, and Stephen T Magill.
    • 1Department of Neurological Surgery, Northwestern University Feinberg School of Medicine, Chicago, Illinois.
    • J. Neurosurg. 2024 Jun 1; 140 (6): 155815671558-1567.

    ObjectiveWhether obesity is associated with meningioma and the impact of obesity by gender has been debated. The primary objective of this study was to investigate differences in BMI between male and female patients undergoing craniotomy for meningioma and compare those with patients undergoing craniotomy for other intracranial tumors. The secondary objective was to compare meningioma location and progression-free survival (PFS) between obese and nonobese patients in a multi-institutional cohort.MethodsNational data were obtained from the National Surgical Quality Improvement Program (NSQIP) database. Male and female patients were analyzed separately. Patients undergoing craniotomies for meningioma were compared with patients of the same sex undergoing craniotomies for other intracranial tumors. Institutional data from two academic centers were collected for all male and an equivalent number of female meningioma patients undergoing meningioma resection. Multivariate regression controlling for age was used to determine differences in meningioma location. Kaplan-Meier curves and log-rank tests were computed to investigate differences in PFS.ResultsFrom NSQIP, 4163 male meningioma patients were compared with 24,266 controls, and 9372 female meningioma patients were compared with 21,538 controls. Male and female patients undergoing meningioma resection were more likely to be overweight or obese compared with patients undergoing craniotomy for other tumors, with the odds ratio increasing with increasing weight class (all p < 0.0001). In the multi-institutional cohort, meningiomas were more common along the skull base in male patients (p = 0.0123), but not in female patients (p = 0.1246). There was no difference in PFS between obese and nonobese male (p = 0.4104) or female (p = 0.5504) patients. Obesity was associated with increased risk of pulmonary embolism in both male and female patients undergoing meningioma resection (p = 0.0043).ConclusionsMale and female patients undergoing meningioma resection are more likely to be obese than patients undergoing craniotomy for other intracranial tumors. Obese males are more likely to have meningiomas in the skull base compared with other locations, but this association was not found in females. There was no significant difference in PFS among obese patients. The mechanism by which obesity increases meningioma incidence remains to be determined.

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