{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,18]],"date-time":"2025-11-18T09:32:57Z","timestamp":1763458377516,"version":"3.37.3"},"reference-count":37,"publisher":"Georg Thieme Verlag KG","issue":"08","license":[{"start":{"date-parts":[[2024,8,8]],"date-time":"2024-08-08T00:00:00Z","timestamp":1723075200000},"content-version":"vor","delay-in-days":7,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Arq Neuropsiquiatr"],"published-print":{"date-parts":[[2024,8]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>\n          Background\u2003There is limited data available regarding the prevalence of intracranial arterial stenosis (ICAS) among acute ischemic stroke (AIS) patients in Brazil and Latin America.<\/jats:p><jats:p>\n          Objective\u2003The present study sought to investigate the frequency and predictors of ICAS among patients with AIS or transient ischemic attack (TIA) in a Brazilian center, with transcranial color-coded duplex sonography (TCCS) technique.<\/jats:p><jats:p>\n          Methods\u2003Consecutive AIS and TIA patients, admitted to an academic public comprehensive stroke center in Brazil from February to December 2014, evaluated by TCCS were prospectively selected. Vascular narrowings\u2009&gt;\u200950% were considered as ICAS, based on ultrasound criteria previously defined in the literature.<\/jats:p><jats:p>\n          Results\u2003We assessed 170 consecutive patients with AIS or TIA, of whom 27 (15.9%) were excluded due to an inadequate transtemporal acoustic bone window. We confirmed ICAS in 55 patients (38.5%). The most common location was the proximal segment of the middle cerebral artery (28.2%), followed by the vertebral (15.4%), posterior cerebral (13.6%), terminal internal carotid (9.1%) and basilar (8.2%) arteries. On multivariate models adjusting for potential confounders, systolic blood pressure (OR: 1.03, 95%CI: 1.01\u20131.04; p\u2009=\u20090.008) was independently associated with ICAS.<\/jats:p><jats:p>\n          Conclusion\u2003We found significant ICAS in approximately \u2153 of patients admitted with symptoms of AIS or TIA in a public tertiary academic stroke center in Brazil. The TCCS is an accessible and noninvasive technique that can be used to investigate the presence of moderate and severe ICAS, especially in patients who cannot be exposed to more invasive exams, such as the use of intravenous contrast agents.<\/jats:p>","DOI":"10.1055\/s-0044-1788667","type":"journal-article","created":{"date-parts":[[2024,8,8]],"date-time":"2024-08-08T23:54:25Z","timestamp":1723161265000},"page":"001-008","source":"Crossref","is-referenced-by-count":1,"title":["High prevalence of intracranial arterial stenosis among acute ischemic stroke patients in a Brazilian center: a transcranial color-coded duplex sonography study"],"prefix":"10.1055","volume":"82","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2738-9346","authenticated-orcid":false,"given":"Let\u00edcia Januzi de Almeida","family":"Rocha","sequence":"additional","affiliation":[{"name":"Universidade Federal de Alagoas, Hospital Universit\u00e1rio Professor Alberto Antunes \u2013 EBSERH, Unidade do Sistema Neurol\u00f3gico, Macei\u00f3 AL, Brazil."},{"name":"Universidade de S\u00e3o Paulo, Faculdade de Medicina de Ribeir\u00e3o Preto, Departamento de Neuroci\u00eancias e Ci\u00eancias do Comportamento, Ribeir\u00e3o Preto SP, Brazil."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6604-0660","authenticated-orcid":false,"given":"Maria Clara Zanon","family":"Zotin","sequence":"additional","affiliation":[{"name":"Universidade de S\u00e3o Paulo, Departamento de Imagens M\u00e9dicas, Hematologia e Oncologia Cl\u00ednica, Ribeir\u00e3o Preto SP, Brazil."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7857-7008","authenticated-orcid":false,"given":"Renata da Silva Almeida","family":"Santos","sequence":"additional","affiliation":[{"name":"Universidade de S\u00e3o Paulo, Faculdade de Medicina de Ribeir\u00e3o Preto, Departamento de Neuroci\u00eancias e Ci\u00eancias do Comportamento, Ribeir\u00e3o Preto SP, Brazil."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8593-5603","authenticated-orcid":false,"given":"Milena Carvalho","family":"Libardi","sequence":"additional","affiliation":[{"name":"Universidade Federal de S\u00e3o Carlos, Hospital Universit\u00e1rio Professor Dr. Hor\u00e1cio Carlos Panepucci \u2013 EBSERH, S\u00e3o Carlos SP, Brazil."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0310-6033","authenticated-orcid":false,"given":"Millene Rodrigues","family":"Camilo","sequence":"additional","affiliation":[{"name":"Universidade de S\u00e3o Paulo, Faculdade de Medicina de Ribeir\u00e3o Preto, Departamento de Neuroci\u00eancias e Ci\u00eancias do Comportamento, Ribeir\u00e3o Preto SP, Brazil."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4422-9969","authenticated-orcid":false,"given":"Clara Monteiro Antunes","family":"Barreira","sequence":"additional","affiliation":[{"name":"Universidade de S\u00e3o Paulo, Faculdade de Medicina de Ribeir\u00e3o Preto, Departamento de Neuroci\u00eancias e Ci\u00eancias do Comportamento, Ribeir\u00e3o Preto SP, Brazil."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5934-9392","authenticated-orcid":false,"given":"Pedro Telles Cougo","family":"Pinto","sequence":"additional","affiliation":[{"name":"Universidade de S\u00e3o Paulo, Faculdade de Medicina de Ribeir\u00e3o Preto, Departamento de Neuroci\u00eancias e Ci\u00eancias do Comportamento, Ribeir\u00e3o Preto SP, Brazil."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6121-7295","authenticated-orcid":false,"given":"Suleimy Cristina","family":"Mazim","sequence":"additional","affiliation":[{"name":"Universidade de S\u00e3o Paulo, Faculdade de Medicina de Ribeir\u00e3o Preto, Departamento de Neuroci\u00eancias e Ci\u00eancias do Comportamento, Ribeir\u00e3o Preto SP, Brazil."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6171-669X","authenticated-orcid":false,"given":"Daniel Giansante","family":"Abud","sequence":"additional","affiliation":[{"name":"Universidade de S\u00e3o Paulo, Faculdade de Medicina de Ribeir\u00e3o Preto, Departamento de Neuroci\u00eancias e Ci\u00eancias do Comportamento, Ribeir\u00e3o Preto SP, Brazil."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0317-843X","authenticated-orcid":false,"given":"Octavio Marques","family":"Pontes Neto","sequence":"additional","affiliation":[{"name":"Universidade de S\u00e3o Paulo, Faculdade de Medicina de Ribeir\u00e3o Preto, Departamento de Neuroci\u00eancias e Ci\u00eancias do Comportamento, Ribeir\u00e3o Preto SP, 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