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Prevalence of carotid artery stenosis in neurologically asymptomatic patients undergoing coronary artery bypass grafting for coronary artery disease: Role of anesthesiologist in preoperative assessment and intraoperative management


1 Department of Cardiac Anesthesiology, All India Institute of Medial Sciences, New Delhi, India
2 Department of Cardiac Radiology, All India Institute of Medial Sciences, New Delhi, India
3 Department of Cardiothoracic Surgery, All India Institute of Medial Sciences, New Delhi, India

Correspondence Address:
Sameer Taneja
Department of Cardiac Anaesthesiology, All India Institute of Medial Sciences, New Delhi - 110 029
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0971-9784.173024

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Year : 2016  |  Volume : 19  |  Issue : 1  |  Page : 76-83

 

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Objective(s): This study aimed to determine the prevalence of carotid artery stenosis (CAS) due to atherosclerosis in neurologically asymptomatic patients undergoing coronary artery bypass grafting (CABG) for coronary artery disease (CAD). It contemplated a greater role for the cardiac anesthesiologist in the perioperative management of such patients with either previously undiagnosed carotid artery disease or towards re-assessment of severity of CAS. Design: Prospective, observational clinical study. Setting: Operation room of a cardiac surgery centre of a tertiary teaching hospital. Participants: A hundred adult patients with New York Heart Association (NYHA) classification I to III presenting electively for CABG. Interventions: All patients included in this study were subjected to ultrasonic examination by means of acarotid doppler scan to access for presence of CAS just prior to induction of general anesthesia. Measurements and Main Results: Based on parameters measured using carotid doppler, the presence of CAS was defined using standard criteria. The prevalence of CAS was found to be as high as 38% amongst the patients included in our study. The risk factors for CAS were identified to be advanced age, history of smoking, diabetes mellitus, dyslipidaemia and presence of a carotid bruit. Conclusion: This study points towards the relatively wide prevalence of carotid artery disease in neurologically asymptomatic patients undergoing CABG for CAD in the elective setting. It highlights the need to routinely incorporate carotid ultrasonography in the armamentarium of the cardiac anesthesiologist as standard of care for all patients presenting for CABG.






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1 Department of Cardiac Anesthesiology, All India Institute of Medial Sciences, New Delhi, India
2 Department of Cardiac Radiology, All India Institute of Medial Sciences, New Delhi, India
3 Department of Cardiothoracic Surgery, All India Institute of Medial Sciences, New Delhi, India

Correspondence Address:
Sameer Taneja
Department of Cardiac Anaesthesiology, All India Institute of Medial Sciences, New Delhi - 110 029
India
Login to access the Email id

Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0971-9784.173024

Rights and Permissions

Objective(s): This study aimed to determine the prevalence of carotid artery stenosis (CAS) due to atherosclerosis in neurologically asymptomatic patients undergoing coronary artery bypass grafting (CABG) for coronary artery disease (CAD). It contemplated a greater role for the cardiac anesthesiologist in the perioperative management of such patients with either previously undiagnosed carotid artery disease or towards re-assessment of severity of CAS. Design: Prospective, observational clinical study. Setting: Operation room of a cardiac surgery centre of a tertiary teaching hospital. Participants: A hundred adult patients with New York Heart Association (NYHA) classification I to III presenting electively for CABG. Interventions: All patients included in this study were subjected to ultrasonic examination by means of acarotid doppler scan to access for presence of CAS just prior to induction of general anesthesia. Measurements and Main Results: Based on parameters measured using carotid doppler, the presence of CAS was defined using standard criteria. The prevalence of CAS was found to be as high as 38% amongst the patients included in our study. The risk factors for CAS were identified to be advanced age, history of smoking, diabetes mellitus, dyslipidaemia and presence of a carotid bruit. Conclusion: This study points towards the relatively wide prevalence of carotid artery disease in neurologically asymptomatic patients undergoing CABG for CAD in the elective setting. It highlights the need to routinely incorporate carotid ultrasonography in the armamentarium of the cardiac anesthesiologist as standard of care for all patients presenting for CABG.






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