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Research ArticleOriginal Article
Open Access

Preoperative transcranial and carotid Doppler study in coronary artery bypass graft patients

Mehdi Farhoudi, Rezayat Parvizi, Eisa Bilehjani, Mohammad K. Tarzamni, Kaveh Mehrvar and Abdolrasool Safaiyan
Neurosciences Journal January 2007, 12 (1) 42-45;
Mehdi Farhoudi
Department of Neurology, Neurological Sciences Research Team, Imam Hospital, Tabriz University of Medical Sciences, Tabriz, Iran. Tel/Fax. +98 (411) 3342889. E-mail: [email protected] / [email protected]
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Rezayat Parvizi
Department of Neurology, Neurological Sciences Research Team, Imam Hospital, Tabriz University of Medical Sciences, Tabriz, Iran. Tel/Fax. +98 (411) 3342889. E-mail: [email protected] / [email protected]
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Eisa Bilehjani
Department of Neurology, Neurological Sciences Research Team, Imam Hospital, Tabriz University of Medical Sciences, Tabriz, Iran. Tel/Fax. +98 (411) 3342889. E-mail: [email protected] / [email protected]
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Mohammad K. Tarzamni
Department of Neurology, Neurological Sciences Research Team, Imam Hospital, Tabriz University of Medical Sciences, Tabriz, Iran. Tel/Fax. +98 (411) 3342889. E-mail: [email protected] / [email protected]
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Kaveh Mehrvar
Department of Neurology, Neurological Sciences Research Team, Imam Hospital, Tabriz University of Medical Sciences, Tabriz, Iran. Tel/Fax. +98 (411) 3342889. E-mail: [email protected] / [email protected]
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Abdolrasool Safaiyan
Department of Neurology, Neurological Sciences Research Team, Imam Hospital, Tabriz University of Medical Sciences, Tabriz, Iran. Tel/Fax. +98 (411) 3342889. E-mail: [email protected] / [email protected]
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Abstract

OBJECTIVE: To assess the correlation of postoperative neurologic complications with preoperative transcranial and carotid Doppler study findings of coronary artery bypass graft (CABG) patients.

METHODS: In a descriptive, analytic, follow up study we prospectively studied 201 patients undergoing elective and isolated CABG surgery during a 12 month period from October 2003 to September 2004 at Madani Hospital of Tabriz Medical Sciences University, Iran. Neurologic examination, intracranial cerebral arterial study using transcranial Doppler (TCD) and carotid duplex were performed preoperatively. Intraoperative and postoperative complications were followed up for one month.

RESULTS: Two hundred and one patients (158 male, 43 female) with a mean age of 57.29+/-9.67 were studied. Out of these, 131 patients had 3 coronary vessels disease, 64 had 2 vessels, 5 had one vessel, and one patient had diffuse coronary disease. A TCD was performed in 183 patients and disclosed abnormalities in 22 patients and was normal in 161 cases. The total number of involved arteries was 34. Among 154 carotid duplex studied patients, 102 had plaque, inducing <50% stenosis in 99, 50-74% stenosis in one, and 75-90% stenosis in 2 cases. Postoperative neurologic complication occurred as follows: 4 stroke, 7 delirium, and 3 amnesia. One of the operated patients died. Nine of 161 patients with normal TCD (5.6%) and 5 of 22 (22.7%) with intracranial cerebral arterial disease (ICAD) showed central nervous system (CNS) complications (p=0.015). There were significant correlations between number of involved cerebral arteries and post CABG CNS complications (p=0.0001), including stroke (p=0.007), and between diabetes mellitus history with these complications (p=0.012).

CONCLUSION: Our results suggest that lCAD is an independent risk factor for CNS complications after CABG surgery. Hence, we recommend pre-CABG evaluation of the cerebral arteries by TCD, for the risk assessment of CABG surgery.

  • Copyright: © Neurosciences

Neurosciences is an Open Access journal and articles published are distributed under the terms of the Creative Commons Attribution-NonCommercial License (CC BY-NC). Readers may copy, distribute, and display the work for non-commercial purposes with the proper citation of the original work.

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Neurosciences Journal: 12 (1)
Neurosciences Journal
Vol. 12, Issue 1
1 Jan 2007
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Preoperative transcranial and carotid Doppler study in coronary artery bypass graft patients
Mehdi Farhoudi, Rezayat Parvizi, Eisa Bilehjani, Mohammad K. Tarzamni, Kaveh Mehrvar, Abdolrasool Safaiyan
Neurosciences Journal Jan 2007, 12 (1) 42-45;

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Preoperative transcranial and carotid Doppler study in coronary artery bypass graft patients
Mehdi Farhoudi, Rezayat Parvizi, Eisa Bilehjani, Mohammad K. Tarzamni, Kaveh Mehrvar, Abdolrasool Safaiyan
Neurosciences Journal Jan 2007, 12 (1) 42-45;
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© 2025 Neurosciences Journal Neurosciences is copyright under the Berne Convention and the International Copyright Convention. All rights reserved. Neurosciences is an Open Access journal and articles published are distributed under the terms of the Creative Commons Attribution-NonCommercial License (CC BY-NC). Readers may copy, distribute, and display the work for non-commercial purposes with the proper citation of the original work. Electronic ISSN 1658-3183. Print ISSN 1319-6138.

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