{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,16]],"date-time":"2026-10-16T18:22:20Z","timestamp":1792174940268,"version":"4.4.0"},"reference-count":20,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"10","content-domain":{"domain":["www.ahajournals.org"],"crossmark-restriction":true},"short-container-title":["Stroke"],"published-print":{"date-parts":[[2012,10]]},"abstract":"\n Background and Purpose\u2014<\/jats:title>\n Enrollment in the Stenting and Aggressive Medical Management for Preventing Recurrent stroke in Intracranial Stenosis (SAMMPRIS) trial was halted due to the high risk of stroke or death within 30 days of enrollment in the percutaneous transluminal angioplasty and stenting arm relative to the medical arm. This analysis focuses on the patient and procedural factors that may have been associated with periprocedural cerebrovascular events in the trial.<\/jats:p>\n <\/jats:sec>\n \n Methods\u2014<\/jats:title>\n Bivariate and multivariate analyses were performed to evaluate whether patient and procedural variables were associated with cerebral ischemic or hemorrhagic events occurring within 30 days of enrollment (termed periprocedural) in the percutaneous transluminal angioplasty and stenting arm.<\/jats:p>\n <\/jats:sec>\n \n Results\u2014<\/jats:title>\n \n Of 224 patients randomized to percutaneous transluminal angioplasty and stenting, 213 underwent angioplasty alone (n=5) or with stenting (n=208). Of these, 13 had hemorrhagic strokes (7 parenchymal, 6 subarachnoid), 19 had ischemic stroke, and 2 had cerebral infarcts with temporary signs within the periprocedural period. Ischemic events were categorized as perforator occlusions (13), embolic (4), mixed perforator and embolic (2), and delayed stent occlusion (2). Multivariate analyses showed that higher percent stenosis, lower modified Rankin score, and clopidogrel load associated with an activated clotting time above the target range were associated (\n P<\/jats:italic>\n \u22640.05) with hemorrhagic stroke. Nonsmoking, basilar artery stenosis, diabetes, and older age were associated (\n P<\/jats:italic>\n \u22640.05) with ischemic events.\n <\/jats:p>\n <\/jats:sec>\n \n Conclusions\u2014<\/jats:title>\n Periprocedural strokes in SAMMPRIS had multiple causes with the most common being perforator occlusion. Although risk factors for periprocedural strokes could be identified, excluding patients with these features from undergoing percutaneous transluminal angioplasty and stenting to lower the procedural risk would limit percutaneous transluminal angioplasty and stenting to a small subset of patients. Moreover, given the small number of events, the present data should be used for hypothesis generation rather than to guide patient selection in clinical practice.<\/jats:p>\n <\/jats:sec>\n \n Clinical Trial Registration Information\u2014<\/jats:title>\n \n URL:\n http:\/\/clinicaltrials.gov<\/jats:ext-link>\n . Unique Identifier: NCT00576693.\n <\/jats:p>\n <\/jats:sec>","DOI":"10.1161\/strokeaha.112.661173","type":"journal-article","created":{"date-parts":[[2012,9,15]],"date-time":"2012-09-15T10:49:44Z","timestamp":1347706184000},"page":"2682-2688","update-policy":"https:\/\/doi.org\/10.1161\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":187,"title":["Detailed Analysis of Periprocedural Strokes in Patients Undergoing Intracranial Stenting in Stenting and Aggressive Medical Management for Preventing Recurrent Stroke in Intracranial Stenosis (SAMMPRIS)"],"prefix":"10.1161","volume":"43","author":[{"given":"David","family":"Fiorella","sequence":"first","affiliation":[{"name":"From the Department of Neurosurgery, State University of New York, Stony Brook, NY (D.F.); Mallinckrodt Institute of Radiology and the Departments of Neurology and Neurosurgery, Washington University School of Medicine, St Louis, MO (C.P.D.); the Department of Biostatistics and Bioinformatics, Emory University Rollins School of Public Health, Atlanta, GA (M.J.L., B.F.L.); the Department of Neurological Surgery and the Dotter Interventional Institute (S.L.B.) and the Department of Neurology (H.L.L.),..."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Colin P.","family":"Derdeyn","sequence":"additional","affiliation":[{"name":"From the Department of Neurosurgery, State University of New York, Stony Brook, NY (D.F.); Mallinckrodt Institute of Radiology and the Departments of Neurology and Neurosurgery, Washington University School of Medicine, St Louis, MO (C.P.D.); the Department of Biostatistics and Bioinformatics, Emory University Rollins School of Public Health, Atlanta, GA (M.J.L., B.F.L.); the Department of Neurological Surgery and the Dotter Interventional Institute (S.L.B.) and the Department of Neurology (H.L.L.),..."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Michael J.","family":"Lynn","sequence":"additional","affiliation":[{"name":"From the Department of Neurosurgery, State University of New York, Stony Brook, NY (D.F.); Mallinckrodt Institute of Radiology and the Departments of Neurology and Neurosurgery, Washington University School of Medicine, St Louis, MO (C.P.D.); the Department of Biostatistics and Bioinformatics, Emory University Rollins School of Public Health, Atlanta, GA (M.J.L., B.F.L.); the Department of Neurological Surgery and the Dotter Interventional Institute (S.L.B.) and the Department of Neurology (H.L.L.),..."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Stanley L.","family":"Barnwell","sequence":"additional","affiliation":[{"name":"From the Department of Neurosurgery, State University of New York, Stony Brook, NY (D.F.); Mallinckrodt Institute of Radiology and the Departments of Neurology and Neurosurgery, Washington University School of Medicine, St Louis, MO (C.P.D.); the Department of Biostatistics and Bioinformatics, Emory University Rollins School of Public Health, Atlanta, GA (M.J.L., B.F.L.); the Department of Neurological Surgery and the Dotter Interventional Institute (S.L.B.) and the Department of Neurology (H.L.L.),..."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Brian L.","family":"Hoh","sequence":"additional","affiliation":[{"name":"From the Department of Neurosurgery, State University of New York, Stony Brook, NY (D.F.); Mallinckrodt Institute of Radiology and the Departments of Neurology and Neurosurgery, Washington University School of Medicine, St Louis, MO (C.P.D.); the Department of Biostatistics and Bioinformatics, Emory University Rollins School of Public Health, Atlanta, GA (M.J.L., B.F.L.); the Department of Neurological Surgery and the Dotter Interventional Institute (S.L.B.) and the Department of Neurology (H.L.L.),..."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Elad I.","family":"Levy","sequence":"additional","affiliation":[{"name":"From the Department of Neurosurgery, State University of New York, Stony Brook, NY (D.F.); Mallinckrodt Institute of Radiology and the Departments of Neurology and Neurosurgery, Washington University School of Medicine, St Louis, MO (C.P.D.); the Department of Biostatistics and Bioinformatics, Emory University Rollins School of Public Health, Atlanta, GA (M.J.L., B.F.L.); the Department of Neurological Surgery and the Dotter Interventional Institute (S.L.B.) and the Department of Neurology (H.L.L.),..."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mark R.","family":"Harrigan","sequence":"additional","affiliation":[{"name":"From the Department of Neurosurgery, State University of New York, Stony Brook, NY (D.F.); Mallinckrodt Institute of Radiology and the Departments of Neurology and Neurosurgery, Washington University School of Medicine, St Louis, MO (C.P.D.); the Department of Biostatistics and Bioinformatics, Emory University Rollins School of Public Health, Atlanta, GA (M.J.L., B.F.L.); the Department of Neurological Surgery and the Dotter Interventional Institute (S.L.B.) and the Department of Neurology (H.L.L.),..."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Richard P.","family":"Klucznik","sequence":"additional","affiliation":[{"name":"From the Department of Neurosurgery, State University of New York, Stony Brook, NY (D.F.); Mallinckrodt Institute of Radiology and the Departments of Neurology and Neurosurgery, Washington University School of Medicine, St Louis, MO (C.P.D.); the Department of Biostatistics and Bioinformatics, Emory University Rollins School of Public Health, Atlanta, GA (M.J.L., B.F.L.); the Department of Neurological Surgery and the Dotter Interventional Institute (S.L.B.) and the Department of Neurology (H.L.L.),..."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Cameron G.","family":"McDougall","sequence":"additional","affiliation":[{"name":"From the Department of Neurosurgery, State University of New York, Stony Brook, NY (D.F.); Mallinckrodt Institute of Radiology and the Departments of Neurology and Neurosurgery, Washington University School of Medicine, St Louis, MO (C.P.D.); the Department of Biostatistics and Bioinformatics, Emory University Rollins School of Public Health, Atlanta, GA (M.J.L., B.F.L.); the Department of Neurological Surgery and the Dotter Interventional Institute (S.L.B.) and the Department of Neurology (H.L.L.),..."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"suffix":"Jr","given":"G. Lee","family":"Pride","sequence":"additional","affiliation":[{"name":"From the Department of Neurosurgery, State University of New York, Stony Brook, NY (D.F.); Mallinckrodt Institute of Radiology and the Departments of Neurology and Neurosurgery, Washington University School of Medicine, St Louis, MO (C.P.D.); the Department of Biostatistics and Bioinformatics, Emory University Rollins School of Public Health, Atlanta, GA (M.J.L., B.F.L.); the Department of Neurological Surgery and the Dotter Interventional Institute (S.L.B.) and the Department of Neurology (H.L.L.),..."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Osama O.","family":"Zaidat","sequence":"additional","affiliation":[{"name":"From the Department of Neurosurgery, State University of New York, Stony Brook, NY (D.F.); Mallinckrodt Institute of Radiology and the Departments of Neurology and Neurosurgery, Washington University School of Medicine, St Louis, MO (C.P.D.); the Department of Biostatistics and Bioinformatics, Emory University Rollins School of Public Health, Atlanta, GA (M.J.L., B.F.L.); the Department of Neurological Surgery and the Dotter Interventional Institute (S.L.B.) and the Department of Neurology (H.L.L.),..."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Helmi L.","family":"Lutsep","sequence":"additional","affiliation":[{"name":"From the Department of Neurosurgery, State University of New York, Stony Brook, NY (D.F.); Mallinckrodt Institute of Radiology and the Departments of Neurology and Neurosurgery, Washington University School of Medicine, St Louis, MO (C.P.D.); the Department of Biostatistics and Bioinformatics, Emory University Rollins School of Public Health, Atlanta, GA (M.J.L., B.F.L.); the Department of Neurological Surgery and the Dotter Interventional Institute (S.L.B.) and the Department of Neurology (H.L.L.),..."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Michael F.","family":"Waters","sequence":"additional","affiliation":[{"name":"From the Department of Neurosurgery, State University of New York, Stony Brook, NY (D.F.); Mallinckrodt Institute of Radiology and the Departments of Neurology and Neurosurgery, Washington University School of Medicine, St Louis, MO (C.P.D.); the Department of Biostatistics and Bioinformatics, Emory University Rollins School of Public Health, Atlanta, GA (M.J.L., B.F.L.); the Department of Neurological Surgery and the Dotter Interventional Institute (S.L.B.) and the Department of Neurology (H.L.L.),..."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"J. Maurice","family":"Hourihane","sequence":"additional","affiliation":[{"name":"From the Department of Neurosurgery, State University of New York, Stony Brook, NY (D.F.); Mallinckrodt Institute of Radiology and the Departments of Neurology and Neurosurgery, Washington University School of Medicine, St Louis, MO (C.P.D.); the Department of Biostatistics and Bioinformatics, Emory University Rollins School of Public Health, Atlanta, GA (M.J.L., B.F.L.); the Department of Neurological Surgery and the Dotter Interventional Institute (S.L.B.) and the Department of Neurology (H.L.L.),..."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Andrei V.","family":"Alexandrov","sequence":"additional","affiliation":[{"name":"From the Department of Neurosurgery, State University of New York, Stony Brook, NY (D.F.); Mallinckrodt Institute of Radiology and the Departments of Neurology and Neurosurgery, Washington University School of Medicine, St Louis, MO (C.P.D.); the Department of Biostatistics and Bioinformatics, Emory University Rollins School of Public Health, Atlanta, GA (M.J.L., B.F.L.); the Department of Neurological Surgery and the Dotter Interventional Institute (S.L.B.) and the Department of Neurology (H.L.L.),..."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"David","family":"Chiu","sequence":"additional","affiliation":[{"name":"From the Department of Neurosurgery, State University of New York, Stony Brook, NY (D.F.); Mallinckrodt Institute of Radiology and the Departments of Neurology and Neurosurgery, Washington University School of Medicine, St Louis, MO (C.P.D.); the Department of Biostatistics and Bioinformatics, Emory University Rollins School of Public Health, Atlanta, GA (M.J.L., B.F.L.); the Department of Neurological Surgery and the Dotter Interventional Institute (S.L.B.) and the Department of Neurology (H.L.L.),..."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Joni M.","family":"Clark","sequence":"additional","affiliation":[{"name":"From the Department of Neurosurgery, State University of New York, Stony Brook, NY (D.F.); Mallinckrodt Institute of Radiology and the Departments of Neurology and Neurosurgery, Washington University School of Medicine, St Louis, MO (C.P.D.); the Department of Biostatistics and Bioinformatics, Emory University Rollins School of Public Health, Atlanta, GA (M.J.L., B.F.L.); the Department of Neurological Surgery and the Dotter Interventional Institute (S.L.B.) and the Department of Neurology (H.L.L.),..."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mark D.","family":"Johnson","sequence":"additional","affiliation":[{"name":"From the Department of Neurosurgery, State University of New York, Stony Brook, NY (D.F.); Mallinckrodt Institute of Radiology and the Departments of Neurology and Neurosurgery, Washington University School of Medicine, St Louis, MO (C.P.D.); the Department of Biostatistics and Bioinformatics, Emory University Rollins School of Public Health, Atlanta, GA (M.J.L., B.F.L.); the Department of Neurological Surgery and the Dotter Interventional Institute (S.L.B.) and the Department of Neurology (H.L.L.),..."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Michel T.","family":"Torbey","sequence":"additional","affiliation":[{"name":"From the Department of Neurosurgery, State University of New York, Stony Brook, NY (D.F.); Mallinckrodt Institute of Radiology and the Departments of Neurology and Neurosurgery, Washington University School of Medicine, St Louis, MO (C.P.D.); the Department of Biostatistics and Bioinformatics, Emory University Rollins School of Public Health, Atlanta, GA (M.J.L., B.F.L.); the Department of Neurological Surgery and the Dotter Interventional Institute (S.L.B.) and the Department of Neurology (H.L.L.),..."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zoran","family":"Rumboldt","sequence":"additional","affiliation":[{"name":"From the Department of Neurosurgery, State University of New York, Stony Brook, NY (D.F.); Mallinckrodt Institute of Radiology and the Departments of Neurology and Neurosurgery, Washington University School of Medicine, St Louis, MO (C.P.D.); the Department of Biostatistics and Bioinformatics, Emory University Rollins School of Public Health, Atlanta, GA (M.J.L., B.F.L.); the Department of Neurological Surgery and the Dotter Interventional Institute (S.L.B.) and the Department of Neurology (H.L.L.),..."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Harry J.","family":"Cloft","sequence":"additional","affiliation":[{"name":"From the Department of Neurosurgery, State University of New York, Stony Brook, NY (D.F.); Mallinckrodt Institute of Radiology and the Departments of Neurology and Neurosurgery, Washington University School of Medicine, St Louis, MO (C.P.D.); the Department of Biostatistics and Bioinformatics, Emory University Rollins School of Public Health, Atlanta, GA (M.J.L., B.F.L.); the Department of Neurological Surgery and the Dotter Interventional Institute (S.L.B.) and the Department of Neurology (H.L.L.),..."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tanya N.","family":"Turan","sequence":"additional","affiliation":[{"name":"From the Department of Neurosurgery, State University of New York, Stony Brook, NY (D.F.); Mallinckrodt Institute of Radiology and the Departments of Neurology and Neurosurgery, Washington University School of Medicine, St Louis, MO (C.P.D.); the Department of Biostatistics and Bioinformatics, Emory University Rollins School of Public Health, Atlanta, GA (M.J.L., B.F.L.); the Department of Neurological Surgery and the Dotter Interventional Institute (S.L.B.) and the Department of Neurology (H.L.L.),..."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bethany F.","family":"Lane","sequence":"additional","affiliation":[{"name":"From the Department of Neurosurgery, State University of New York, Stony Brook, NY (D.F.); 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Scott","family":"Janis","sequence":"additional","affiliation":[{"name":"From the Department of Neurosurgery, State University of New York, Stony Brook, NY (D.F.); Mallinckrodt Institute of Radiology and the Departments of Neurology and Neurosurgery, Washington University School of Medicine, St Louis, MO (C.P.D.); the Department of Biostatistics and Bioinformatics, Emory University Rollins School of Public Health, Atlanta, GA (M.J.L., B.F.L.); the Department of Neurological Surgery and the Dotter Interventional Institute (S.L.B.) and the Department of Neurology (H.L.L.),..."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marc I.","family":"Chimowitz","sequence":"additional","affiliation":[{"name":"From the Department of Neurosurgery, State University of New York, Stony Brook, NY (D.F.); Mallinckrodt Institute of Radiology and the Departments of Neurology and Neurosurgery, Washington University School of Medicine, St Louis, MO (C.P.D.); the Department of Biostatistics and Bioinformatics, Emory University Rollins School of Public Health, Atlanta, GA (M.J.L., B.F.L.); the Department of Neurological Surgery and the Dotter Interventional Institute (S.L.B.) and the Department of Neurology (H.L.L.),..."}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"276","reference":[{"key":"e_1_3_3_2_2","doi-asserted-by":"publisher","DOI":"10.1056\/NEJMoa1105335"},{"key":"e_1_3_3_3_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jstrokecerebrovasdis.2011.05.001"},{"key":"e_1_3_3_4_2","doi-asserted-by":"publisher","DOI":"10.1212\/01.wnl.0b013e3181a1863c"},{"key":"e_1_3_3_5_2","doi-asserted-by":"publisher","DOI":"10.1212\/01.wnl.0000306308.08229.a3"},{"key":"e_1_3_3_6_2","doi-asserted-by":"publisher","DOI":"10.1161\/01.STR.0000257963.65728.e8"},{"key":"e_1_3_3_7_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0735-1097(01)01344-4"},{"key":"e_1_3_3_8_2","doi-asserted-by":"publisher","DOI":"10.1016\/0735-1097(95)00299-5"},{"key":"e_1_3_3_9_2","first-page":"313","article-title":"Acute myocardial infarction in the young\u2014the role of smoking. 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