Evidence map›Paper›PMID 22592327›Full record

ArticleNeurosurgery2012

Seizure predictors and control after microsurgical resection of supratentorial arteriovenous malformations in 440 patients.

Dario J Englot, William L Young, Seunggu J Han, Charles E McCulloch, Edward F Chang, Michael T Lawton

Abstract read
In one paragraph

Article in Neurosurgery, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed, 3 pooled it
6.0field-weighted citation impact, top 4% of its field
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

25 citing papers in PubMed, 3 syntheses or guidelines pooled it, 97 citations in OpenAlex.

  1. Pooled it
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  11. Observational
  12. Article
  13. Treatment of Brain Arteriovenous Malformations.Advances and technical standards in neurosurgery · 2024
    Article
  14. Article
  15. Observational
  16. Review
  17. Article
  18. Seizure predictors and outcome after Onyx embolization in patients with brain arteriovenous malformations.Interventional neuroradiology : journal of peritherapeutic neuroradiology, surgical procedures and related neurosciences · 2019
    Article
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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

6 authors at 1 institution in 1 country.

Dario J EnglotDepartment of Neurological Surgery, University of California, San Francisco, California 94143-0112, USA. englotdj@neurosurg.ucsf.edu
William L Young
Seunggu J Han
Charles E McCulloch
Edward F Chang
Michael T Lawton
University of California, San Francisco · US

Funding

Underlying mechanisms for the pro-angiogenic phenotype of AVMsP01NS044155 · NINDS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI YOUNG, WILLIAM L · 2003 to 2013
$12.8M
PREDICTORS OF SPONTANEOUS CEREBRAL AVM HEMORRHAGER01NS034949 · NINDS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI KIM, HELEN · 1995 to 2017
$6.5M
Resting-State Functional Connectivity Analysis in Focal Neocortical EpilepsyF32NS086353 · NINDS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI ENGLOT, DARIO J · 2014 to 2014
$59k
NINDS NIH HHS F32 NS086353NINDS NIH HHS P01 NS044155NINDS NIH HHS P01NS044155NINDS NIH HHS R01 NS034949PHS HHS R01INS034949
6 · The paper itself

Abstract

backgroundSeizures are a common symptom of supratentorial arteriovenous malformations (AVMs), and uncontrolled epilepsy can considerably reduce patient quality of life. Potential risk factors for epilepsy in patients with AVMs are poorly understood, and the importance of achieving freedom from seizures in their surgical treatment remains underappreciated.

objectiveTo characterize risks factors for preoperative seizures and factors associated with postoperative freedom from seizures in patients with surgically resected supratentorial AVMs.

methodsWe analyzed prospectively collected patient data for 440 patients who underwent microsurgical resection of supratentorial AVMs at our institution.

resultsAmong 440 patients with supratentorial AVMs, 130 (30%) experienced preoperative seizures, and 23 (18%) with seizures progressed to medically refractory epilepsy. Seizures were associated with a history of AVM hemorrhage (relative risk, 6.65; 95% confidence interval [CI], 3.81-11.6), male sex (relative risk, 2.07; 95% CI, 1.26-3.39), and frontotemporal lesion location (relative risk, 1.75; 95% CI, 1.05-2.93). After resection, 96% of patients had a modified Engel class I outcome, characterized by freedom from seizures (80%) or only 1 postoperative seizure (16%; mean follow-up, 20.7 ± 2.3 months). Comparable rates of postoperative seizures were seen in patients with (7%) or without (3%) preoperative seizures. AVMs with deep artery perforators were significantly associated with postoperative seizures (hazard ratio, 4.35; 95% CI, 1.61-11.7).

conclusionIn the microsurgical treatment of supratentorial AVMs, hemorrhage, male sex, and frontotemporal location are associated with higher rates of preoperative seizures, whereas deep artery perforators are associated with postoperative seizures. Achieving freedom from seizure is an important goal that can be achieved in the surgical treatment of AVMs because epilepsy can significantly diminish patient quality of life.

Indexed as

AdolescentAdultAgedAged, 80 and overChildChild, PreschoolFemaleHumansInfantIntracranial Arteriovenous MalformationsMaleMicrosurgeryMiddle AgedNeurosurgical ProceduresPostoperative ComplicationsRisk Factors

Identifiers

PMID22592327
PMCPMC5815296
OpenAlexW1964082718

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

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.