{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,24]],"date-time":"2026-02-24T16:58:40Z","timestamp":1771952320919,"version":"3.50.1"},"reference-count":32,"publisher":"Journal of Neurosurgery Publishing Group (JNSPG)","issue":"3","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2018,3]]},"abstract":"<jats:sec><jats:title>OBJECTIVE<\/jats:title><jats:p>Subarachnoid hemorrhage (SAH) is treated with either surgical clipping or endovascular coiling, though the latter is the preferred treatment method given its more favorable functional outcomes. However, neuropsychological functioning after treatment is rarely taken into account. In this meta-analysis, the authors synthesized relevant data from the literature and compared neuropsychological functioning in patients after coiling and clipping of SAH. They hypothesized that the coiled patients would outperform the clipped patients; that group differences would be greater with higher posterior circulation rupture rates, in older patients, and in more recent publications; that group differences would be smaller with greater rates of middle cerebral artery (MCA) rupture; and that anterior communicating artery (ACoA) rupture rates would not influence effect sizes.<\/jats:p><\/jats:sec><jats:sec><jats:title>METHODS<\/jats:title><jats:p>The MEDLINE, Embase, and PsycINFO databases were searched for clinical studies that compared neuropsychological functioning after either endovascular coiling or surgical clipping for SAH. Hedge's g and 95% confidence intervals were calculated using random effects models. Patients who had undergone coiling or clipping were compared on test performance in 8 neuropsychological domains: executive functions, language, attention\/processing speed, verbal memory, visual memory, spatial memory, visuospatial functions, and intelligence. Patients were also compared with healthy controls, and meta-regressions were used to explore the relation between effect sizes and publication year, delay between treatment and neuropsychological testing, mean patient age, and rates of posterior circulation, ACoA, and MCA ruptures.<\/jats:p><\/jats:sec><jats:sec><jats:title>RESULTS<\/jats:title><jats:p>Thirteen studies with 396 clipped cases, 314 coiled cases, and 169 healthy controls were included in the study. The coil-treated patients outperformed the clip-treated patients on executive function (g = 0.17, 95% CI 0.08\u20130.25) and language tests (g = 0.23, 95% CI 0.07\u20130.39), and all patients were impaired relative to healthy controls (g ranged from \u22120.93 to \u22120.29). Coiled patients outperformed clipped patients to a greater degree in more recent publications, over longer posttreatment testing delays, and among older patients. Higher rates of posterior circulation and MCA aneurysms were associated with smaller group differences, while ACoA rupture rates did not influence effect sizes.<\/jats:p><\/jats:sec><jats:sec><jats:title>CONCLUSIONS<\/jats:title><jats:p>Coiling of SAH may promote superior neuropsychological functioning under certain circumstances and could have applications for the specialized care of SAH patients.<\/jats:p><\/jats:sec>","DOI":"10.3171\/2016.11.jns162055","type":"journal-article","created":{"date-parts":[[2017,4,14]],"date-time":"2017-04-14T15:15:04Z","timestamp":1492182904000},"page":"768-776","source":"Crossref","is-referenced-by-count":18,"title":["Neuropsychological function after endovascular and neurosurgical treatment of subarachnoid hemorrhage: a systematic review and meta-analysis"],"prefix":"10.3171","volume":"128","author":[{"given":"Peter","family":"Egeto","sequence":"first","affiliation":[{"name":"Department of Psychology, Ryerson University;"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"R.","family":"Loch Macdonald","sequence":"additional","affiliation":[{"name":"Keenan Research Centre for Biomedical Science and"},{"name":"Division of Neurosurgery, St. Michael's Hospital; and"},{"name":"Institutes of Medical Science and"},{"name":"Department of Neurosurgery, Faculty of Medicine, University of Toronto, Ontario, Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tisha J.","family":"Ornstein","sequence":"additional","affiliation":[{"name":"Department of Psychology, Ryerson University;"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tom A.","family":"Schweizer","sequence":"additional","affiliation":[{"name":"Keenan Research Centre for Biomedical Science and"},{"name":"Division of Neurosurgery, St. Michael's Hospital; and"},{"name":"Institutes of Medical Science and"},{"name":"Biomaterials and Biomedical Engineering and"},{"name":"Department of Neurosurgery, Faculty of Medicine, University of Toronto, Ontario, Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1754","reference":[{"key":"b1-jns162055","series-title":"Acta Neurol Scand","doi-asserted-by":"publisher","first-page":"293","DOI":"10.1111\/j.1600-0404.2005.00483.x","article-title":"Effect of temporary clipping on frontal lobe functions in patients with ruptured aneurysm of the anterior communicating artery","volume":"112","author":"Akyuz M,","year":"2005","unstructured":"Akyuz M, Erylmaz M, Ozdemir C, Goksu E, Ucar T, Tuncer R: Effect of temporary clipping on frontal lobe functions in patients with ruptured aneurysm of the anterior communicating artery. 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