{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,27]],"date-time":"2025-11-27T10:08:36Z","timestamp":1764238116643,"version":"3.41.2"},"reference-count":13,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"6","content-domain":{"domain":["www.ahajournals.org"],"crossmark-restriction":true},"short-container-title":["Circ: Arrhythmia and Electrophysiology"],"published-print":{"date-parts":[[2016,6]]},"abstract":"<jats:sec>\n            <jats:title>Background\u2014<\/jats:title>\n            <jats:p>The implantation of left atrial appendage closure device (WATCHMAN, Boston Scientific, Natick, MA) is an alternative option to oral anticoagulation (OAC) for stroke prevention in atrial fibrillation. Patients require short-term OAC after implantation to avoid device thrombosis. The 2 clinical trials that assessed this device excluded patients thought not to be candidates for OAC. As such, little is known about the safety of this strategy in patients with previous major bleeding events.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Methods and Results\u2014<\/jats:title>\n            <jats:p>\n              All 20 consecutive patients with history of spontaneous major bleeding while on OAC who had subsequently undergone WATCHMAN device implantation at our institution were included. A newly conceived multidisciplinary Atrial Fibrillation Stroke Prevention Center evaluated patients for candidacy for device implantation and subsequent antithrombotic therapy. The primary outcome was spontaneous major bleeding while receiving short-term postprocedural OAC. Median CHA\n              <jats:sub>2<\/jats:sub>\n              DS\n              <jats:sub>2<\/jats:sub>\n              -VASc and HAS-BLED scores were 5 (quartiles 5\u20136) and 5 (quartiles 4\u20135), respectively. Previous major bleeding events were major gastrointestinal bleeding, intracranial bleeding, spontaneous hemopericardium with cardiac tamponade, and hemarthrosis in 11, 7, 1, and 1 patients, respectively. None of the patients had spontaneous major bleeding during the course of OAC after device implantation. In 1 patient, OAC was discontinued after 40 days because of mechanical fall with head trauma resulting in subdural hematoma with no associated neurological deficits; this was managed conservatively.\n            <\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Conclusions\u2014<\/jats:title>\n            <jats:p>With careful multidisciplinary evaluation, a short course of OAC after WATCHMAN device implantation in patients with previous spontaneous major bleeding events is associated with low risk of recurrent spontaneous major bleeding.<\/jats:p>\n          <\/jats:sec>","DOI":"10.1161\/circep.116.004004","type":"journal-article","created":{"date-parts":[[2016,5,26]],"date-time":"2016-05-26T04:23:56Z","timestamp":1464236636000},"update-policy":"https:\/\/doi.org\/10.1161\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":11,"title":["Initial Experience With High-Risk Patients Excluded From Clinical Trials"],"prefix":"10.1161","volume":"9","author":[{"given":"Amr F.","family":"Barakat","sequence":"first","affiliation":[{"name":"From the Department of Medicine (A.F.B.), Heart and Vascular Institute (A.A.H., W.I.S., M.B., K.T., M.K., W.J., L.L.R., R.G., B.D.L., O.M.W.), Cerebrovascular Center (M.S.H., A.R., K.U., D.W., P.R., M.B.), and Digestive Disease Institute (J.V., G.Z., D.G.), Cleveland Clinic Foundation, Cleveland, OH."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ayman A.","family":"Hussein","sequence":"additional","affiliation":[{"name":"From the Department of Medicine (A.F.B.), Heart and Vascular Institute (A.A.H., W.I.S., M.B., K.T., M.K., W.J., L.L.R., R.G., B.D.L., O.M.W.), Cerebrovascular Center (M.S.H., A.R., K.U., D.W., P.R., M.B.), and Digestive Disease Institute (J.V., G.Z., D.G.), Cleveland Clinic Foundation, Cleveland, OH."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Walid I.","family":"Saliba","sequence":"additional","affiliation":[{"name":"From the Department of Medicine (A.F.B.), Heart and Vascular Institute (A.A.H., W.I.S., M.B., K.T., M.K., W.J., L.L.R., R.G., B.D.L., O.M.W.), Cerebrovascular Center (M.S.H., A.R., K.U., D.W., P.R., M.B.), and Digestive Disease Institute (J.V., G.Z., D.G.), Cleveland Clinic Foundation, Cleveland, OH."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mohammed","family":"Bassiouny","sequence":"additional","affiliation":[{"name":"From the Department of Medicine (A.F.B.), Heart and Vascular Institute (A.A.H., W.I.S., M.B., K.T., M.K., W.J., L.L.R., R.G., B.D.L., O.M.W.), Cerebrovascular Center (M.S.H., A.R., K.U., D.W., P.R., M.B.), and Digestive Disease Institute (J.V., G.Z., D.G.), Cleveland Clinic Foundation, Cleveland, OH."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Khaldoun","family":"Tarakji","sequence":"additional","affiliation":[{"name":"From the Department of Medicine (A.F.B.), Heart and Vascular Institute (A.A.H., W.I.S., M.B., K.T., M.K., W.J., L.L.R., R.G., B.D.L., O.M.W.), Cerebrovascular Center (M.S.H., A.R., K.U., D.W., P.R., M.B.), and Digestive Disease Institute (J.V., G.Z., D.G.), Cleveland Clinic Foundation, Cleveland, OH."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mohamed","family":"Kanj","sequence":"additional","affiliation":[{"name":"From the Department of Medicine (A.F.B.), Heart and Vascular Institute (A.A.H., W.I.S., M.B., K.T., M.K., W.J., L.L.R., R.G., B.D.L., O.M.W.), Cerebrovascular Center (M.S.H., A.R., K.U., D.W., P.R., M.B.), and Digestive Disease Institute (J.V., G.Z., D.G.), Cleveland Clinic Foundation, Cleveland, OH."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Wael","family":"Jaber","sequence":"additional","affiliation":[{"name":"From the Department of Medicine (A.F.B.), Heart and Vascular Institute (A.A.H., W.I.S., M.B., K.T., M.K., W.J., L.L.R., R.G., B.D.L., O.M.W.), Cerebrovascular Center (M.S.H., A.R., K.U., D.W., P.R., M.B.), and Digestive Disease Institute (J.V., G.Z., D.G.), Cleveland Clinic Foundation, Cleveland, OH."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"L. Leonardo","family":"Rodriguez","sequence":"additional","affiliation":[{"name":"From the Department of Medicine (A.F.B.), Heart and Vascular Institute (A.A.H., W.I.S., M.B., K.T., M.K., W.J., L.L.R., R.G., B.D.L., O.M.W.), Cerebrovascular Center (M.S.H., A.R., K.U., D.W., P.R., M.B.), and Digestive Disease Institute (J.V., G.Z., D.G.), Cleveland Clinic Foundation, Cleveland, OH."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Richard","family":"Grimm","sequence":"additional","affiliation":[{"name":"From the Department of Medicine (A.F.B.), Heart and Vascular Institute (A.A.H., W.I.S., M.B., K.T., M.K., W.J., L.L.R., R.G., B.D.L., O.M.W.), Cerebrovascular Center (M.S.H., A.R., K.U., D.W., P.R., M.B.), and Digestive Disease Institute (J.V., G.Z., D.G.), Cleveland Clinic Foundation, Cleveland, OH."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"M. Shazam","family":"Hussain","sequence":"additional","affiliation":[{"name":"From the Department of Medicine (A.F.B.), Heart and Vascular Institute (A.A.H., W.I.S., M.B., K.T., M.K., W.J., L.L.R., R.G., B.D.L., O.M.W.), Cerebrovascular Center (M.S.H., A.R., K.U., D.W., P.R., M.B.), and Digestive Disease Institute (J.V., G.Z., D.G.), Cleveland Clinic Foundation, Cleveland, OH."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Andrew","family":"Russman","sequence":"additional","affiliation":[{"name":"From the Department of Medicine (A.F.B.), Heart and Vascular Institute (A.A.H., W.I.S., M.B., K.T., M.K., W.J., L.L.R., R.G., B.D.L., O.M.W.), Cerebrovascular Center (M.S.H., A.R., K.U., D.W., P.R., M.B.), and Digestive Disease Institute (J.V., G.Z., D.G.), Cleveland Clinic Foundation, Cleveland, OH."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ken","family":"Uchino","sequence":"additional","affiliation":[{"name":"From the Department of Medicine (A.F.B.), 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