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P.104 Grade 3 meningioma survival, recurrence and functional outcomes in an international multicenter cohort

Published online by Cambridge University Press:  05 June 2023

AD Rebchuk
Affiliation:
(Vancouver)*
K Tosefsky
Affiliation:
(Vancouver)
JZ Wang
Affiliation:
(Toronto)
Y Ellenbogen
Affiliation:
(Toronto)
R Drexler
Affiliation:
(Hamburg)
FL Ricklefs
Affiliation:
(Hamburg)
T Sauvigny
Affiliation:
(Hamburg)
U Schüller
Affiliation:
(Hamburg)
C Cutler
Affiliation:
(Chicago)
B Lucke-Wold
Affiliation:
(Gainesville)
Y Mehkri
Affiliation:
(Gainesville)
S Lama
Affiliation:
(Calgary)
G Sutherland
Affiliation:
(Calgary)
M Karsy
Affiliation:
(Salt Lake City)
BL Hoh
Affiliation:
(Gainesville)
M Westphal
Affiliation:
(Hamburg)
G Zadeh
Affiliation:
(Toronto)
S Yip
Affiliation:
(Vancouver)
S Makarenko
Affiliation:
(Vancouver)
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Abstract

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Background: Meningiomas are the most common intracranial tumor, graded from 1 (benign) to 3 (malignant). The aim of this study was to identify clinical features associated with overall survival (OS), progression-free survival (PFS) and functional status for malignant meningiomas. Methods: Demographic, clinical and histopathological data from grade 3 intracranial meningioma cases were identified in the clinical databases from seven sites in North America and Europe from 1991-2022. Summary statistics and Kaplan-Meier OS and PFS curves were generated. Results: We identified 108 patients, with a median age 65 years (IQR: 52, 72) and 53.7% were female. Median OS was 109 months (95% CIs: 88, 227), and 5-year OS rate was 65% (95% CIs: 56, 76). Median PFS was 38 months (95% CIs: 24, 56) and 5-year PFS rate was 37% (95% CIs: 28, 49). OS and PFS were significantly lower in patients aged ≥65 years. Median preoperative KPS score was 80 (IQR: 70, 90), postoperatively KPS was 90 (IQR: 70, 98) and 1-year follow-up KPS was 70 (IQR: 50, 80). Conclusions: This study provides robust survival, recurrence and functional data for grade 3 meningiomas in North America and Europe over a 30-year period.

Type
Abstracts
Copyright
© The Author(s), 2023. Published by Cambridge University Press on behalf of Canadian Neurological Sciences Federation