Temporal Analysis of Postoperative Outcomes With or Without Intraoperative Motor Evoked Potentials and Somatosensory Evoked Potentials Monitoring for Intracranial Meningioma Surgery
- Author:
Na Il SHIN
1
;
Hye Jin HONG
;
Young Il KIM
;
Il Sup KIM
;
Jae Hoon SUNG
;
Sang Won LEE
;
Seung Ho YANG
Author Information
- Publication Type:ORIGINAL ARTICLE
- From:Brain Tumor Research and Treatment 2024;12(1):50-57
- CountryRepublic of Korea
- Language:EN
-
Abstract:
Background:This study aimed to retrospectively assess results of intracranial meningioma surgerywith or without intraoperative neuromonitoring (IONM) in a single institution.
Methods:Two cohorts (a historical cohort and a monitoring cohort) were collected for the analy-sis. Before IONM was introduced, a total of 107 patients underwent intracranial meningioma operation without IONM from January 2000 to December 2008 by one neurosurgeon (historical cohort). After IONM was introduced, a total of 99 patients with intracranial meningioma were operated under IONM between November 2018 and February 2023 by two neurosurgeons (monitoring cohort). A retrospective comparison was made on the complications from meningioma surgery between the two groups.
Results:In the monitoring cohort, warning signals of motor evoked potential (MEPs) or so-matosensory evoked potential (SSEPs) were alarmed in 10 patients. Two of these 10 patients aborted the operation and eight of these 10 patients with warning signals underwent tumor resection. Of these eight patients, five showed postoperative morbidity. Five of 89 patients without warning signals developed neurological deficits. In the historical cohort, 14 of 107 patients showed postoperative morbidity or mortality.
Conclusion:Even after successful resection of intracranial meningiomas prior to the advent ofIONM, integration of MEPs and SSEPs monitoring yielded valuable insights for surgical teams during operative procedures.
