Prevalence of Asymptomatic Critical Carotid Artery Stenosis in Korean Patients with Chronic Atherosclerotic Lower Extremity Ischemia: Is a Screening Carotid Duplex Ultrasonography Worthwhile?.
10.3346/jkms.2010.25.8.1167
- Author:
Woo Sung YUN
1
;
Young Nam RHO
;
Ui Jun PARK
;
Kyung Bok LEE
;
Dong Ik KIM
;
Young Wook KIM
Author Information
1. Division of Vascular Surgery, Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea. ywkim@skku.edu
- Publication Type:Original Article
- Keywords:
Duplex ultrasonography;
Peripheral Vascular Diseases;
Carotid Stenosis
- MeSH:
Adult;
Age Factors;
Aged;
Aged, 80 and over;
Atherosclerosis/complications;
Carotid Stenosis/complications/epidemiology/*ultrasonography;
Chronic Disease;
Coronary Artery Disease/diagnosis;
Demography;
Female;
Humans;
Ischemia/complications;
Lower Extremity;
Male;
Middle Aged;
Peripheral Arterial Disease/*complications/surgery;
Predictive Value of Tests;
Prevalence;
Republic of Korea/epidemiology;
Risk Factors;
*Ultrasonography, Doppler, Duplex
- From:Journal of Korean Medical Science
2010;25(8):1167-1170
- CountryRepublic of Korea
- Language:English
-
Abstract:
This study aimed to investigate prevalence of asymptomatic carotid artery stenosis (ACAS) in Korean patients with peripheral arterial disease (PAD) and identify predictive factors of ACAS in patients with PAD. Between 1994 and 2008, 546 patients who underwent bypass surgery due to PAD were identified in a single tertiary teaching hospital. Of those, 409 patients underwent preoperative screening carotid duplex ultrasonography (CDUS). Patients who had an episode of cerebrovascular event or previous carotid artery intervention were excluded and then a retrospective analysis was made of 340 patients. The degree of internal carotid artery (ICA) stenosis was determined by the criteria of Society of Radiologists in Ultrasound Consensus Conference. To determine the risk factors of ACAS, demographic, coexisting medical condition and lesion characteristics were tested with binary logistic regression model. The prevalence of > or =70% ICA stenosis was 14%. ICA occlusion was detected in 7.1%. Multivariate analysis revealed age >65 yr (OR: 2.610, 95% CI: 1.197-5.691) and coronary artery disease (CAD, OR: 2.333, 95% CI: 1.169-4.657) are predictive factors of > or =70% stenosis. A PAD patient who needs revascularization, particularly, >65 yr or has a concomitant CAD, can be a good candidate of screening CDUS.
