{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,29]],"date-time":"2026-08-29T00:38:13Z","timestamp":1787963893465,"version":"build-2784847793"},"reference-count":29,"publisher":"FapUNIFESP (SciELO)","issue":"3","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J. vasc. bras."],"abstract":"<jats:p>Abstract Background Carotid endarterectomy (CEA) and carotid artery stenting (CAS) have both been proposed for treatment of critical atherosclerotic stenosis located at the carotid bifurcation. Monitoring of hyperintense microembolic signals (MES) by transcranial Doppler ultrasound (TCD) is considered a method of quality control, both in CEA and in CAS. Objective To analyze temporal distribution of MES throughout both semi-eversion CEA and CAS procedures and to evaluate changes in mean velocity of blood flow through the ipsilateral middle cerebral artery (MCA). Method Thirty-three procedures (17 CEA and 16 CAS) were prospectively monitored using TCD and the data were related to three different stages of surgery (pre-cerebral protection, during cerebral protection and post-cerebral protection). Chi-square, Mann-Whitney, ANOVA and contrast tests were used for statistical analysis. Results The MES were uniformly distributed in the CEA group, but not in the CAS group (p = 0.208). The number of MES was higher in the CAS group in all stages. The average flow in the MCA was similarly lower in both groups during the protection stage. Conclusion CEA provoked a lower incidence of MES per procedure than CAS in all stages. The behavior of the averages of the mean of blood flow through the MCA was similar in both groups.<\/jats:p>","DOI":"10.1590\/1677-5449.003316","type":"journal-article","created":{"date-parts":[[2016,10,22]],"date-time":"2016-10-22T20:56:43Z","timestamp":1477169803000},"page":"197-204","source":"Crossref","is-referenced-by-count":4,"title":["A comparative analysis of transcranial Doppler parameters acquired during carotid stenting and semi-eversion carotid endarterectomy"],"prefix":"10.1590","volume":"15","author":[{"given":"Germano da Paz","family":"Olveira","sequence":"first","affiliation":[{"name":"Universidade Estadual de Campinas, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ana Terezinha","family":"Guillaumon","sequence":"additional","affiliation":[{"name":"Universidade Estadual de Campinas, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"S\u00e9rgio Clementino","family":"Benvindo","sequence":"additional","affiliation":[{"name":"Centro Universit\u00e1rio Uninovafapi, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Joana Mayra Teixeira","family":"Lima","sequence":"additional","affiliation":[{"name":"Universidade Federal do Piau\u00ed, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"S\u00e9rgio Ricardo Freire","family":"Barreto","sequence":"additional","affiliation":[{"name":"Universidade Estadual de Campinas, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wagner Mauad","family":"Avelar","sequence":"additional","affiliation":[{"name":"Universidade Estadual de Campinas, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Fernando","family":"Cendes","sequence":"additional","affiliation":[{"name":"Universidade Estadual de Campinas, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"530","published-online":{"date-parts":[[2016,10,24]]},"reference":[{"issue":"4","key":"ref1","doi-asserted-by":"crossref","first-page":"489","DOI":"10.1161\/CIR.0b013e31820d8d78","article-title":"2011 ASA\/ACCF\/AHA\/AANN\/AANS\/ACR\/ASNR\/CNS\/SAIP\/SCAI\/SIR\/SNIS\/SVM\/SVS guideline on the management of patients with extracranial carotid and vertebral artery disease: executive summary. 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