Evidence map›Paper›PMID 28327947›Full record

ArticleNeurosurgery2017

Factors Associated With Pre- and Postoperative Seizures in 1033 Patients Undergoing Supratentorial Meningioma Resection.

William C Chen, Stephen T Magill, Dario J Englot, Joe D Baal, Sagar Wagle, Jonathan W Rick, Michael W McDermott

Abstract read
In one paragraph

Article in Neurosurgery, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
47citing papers in PubMed, 3 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

47 citing papers in PubMed, 3 syntheses or guidelines pooled it.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

William C ChenDepartment of Neurological Surgery, University of California, San Francisco, San Francisco, California.
Stephen T MagillDepartment of Neurological Surgery, University of California, San Francisco, San Francisco, California.
Dario J EnglotDepartment of Neurological Surgery, University of California, San Francisco, San Francisco, California.
Joe D BaalDepartment of Neurological Surgery, University of California, San Francisco, San Francisco, California.
Sagar WagleDepartment of Neurological Surgery, University of California, San Francisco, San Francisco, California.
Jonathan W RickDepartment of Neurological Surgery, University of California, San Francisco, San Francisco, California.
Michael W McDermottDepartment of Neurological Surgery, University of California, San Francisco, San Francisco, California.

Funding

MULTIMODAL MAPPING OF SUBCORTICAL AND CORTICAL FUNCTIONAL NETWORK DISTURBANCES IN FOCAL EPILEPSYK99NS097618 · NINDS · VANDERBILT UNIVERSITY MEDICAL CENTER · PI ENGLOT, DARIO J · 2016 to 2016
$83k
NINDS NIH HHS K99 NS097618
6 · The paper itself

Abstract

backgroundRisk factors for pre- and postoperative seizures in supratentorial meningiomas are understudied compared to other brain tumors.

objectiveTo report seizure frequency and identify factors associated with pre- and postoperative seizures in a large single-center population study of patients undergoing resection of supratentorial meningioma.

methodsRetrospective chart review of 1033 subjects undergoing resection of supratentorial meningioma at the author's institution (1991-2014). Multivariate regression was used to identify variables significantly associated with pre- and postoperative seizures.

resultsPreoperative seizures occurred in 234 (22.7%) subjects. At 5 years postoperative, probability of seizure freedom was 89.9% among subjects without preoperative seizures and 62.2% with preoperative seizures. Multivariate analysis identified the following predictors of preoperative seizures: presence of  ≥1 cm peritumoral edema (odds ratio [OR]: 4.45, 2.55-8.50), nonskull base tumor location (OR: 2.13, 1.26-3.67), greater age (OR per unit increase: 1.03, 1.01-1.05), while presenting symptom of headache (OR: 0.50, 0.29-0.84) or cranial nerve deficit (OR: 0.36, 0.17-0.71) decreased odds of preoperative seizures. Postoperative seizures after discharge were associated with preoperative seizures (OR: 5.70, 2.57-13.13), in-hospital seizure (OR: 4.31, 1.28-13.67), and among patients without preoperative seizure, occurrence of medical or surgical complications (OR 3.39, 1.09-9.48). Perioperative anti-epileptic drug use was not associated with decreased incidence of postoperative seizures.

conclusionsNonskull base supratentorial meningiomas with surrounding edema have the highest risk for preoperative seizure. Long-term follow-up showing persistent seizures in meningioma patients with preoperative seizures raises the possibility that these patients may benefit from electrocorticographic mapping of adjacent cortex and resection of noneloquent, epileptically active cortex.

Indexed as

AdultAgedFemaleHumansMaleMeningiomaMiddle AgedPostoperative ComplicationsRetrospective StudiesRisk FactorsSeizuresSupratentorial NeoplasmsComplicationsEpilepsyMeningiomaPredictorSeizureSupratentorialSurgery

Identifiers

PMID28327947
PMCPMC5572484

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.