Risk factors of carotid stenosis in first-ever ischemic stroke in Taiwan: a hospital-based study
Chien-Hung Chang1, Yeu-Jhy Chang, Tsong-Hai Lee
1Department of Neurology, Chang Gung Memorial Hospital, Linkou Medical Center, Chang Gung University School of Medicine, Taoyuan, Taiwan.
Insights
Age and smoking are key risk factors for extracranial carotid atherosclerosis in patients experiencing their first ischemic stroke. Identifying these factors aids in stroke prevention strategies.
Area of Science:
- Neurology
- Vascular Medicine
- Epidemiology
Background:
- Extracranial carotid atherosclerosis is a significant contributor to ischemic stroke.
- Understanding its risk factors is crucial for effective primary prevention.
Purpose of the Study:
- To identify independent risk factors for extracranial carotid atherosclerosis in patients with first-ever ischemic stroke.
- To inform primary prevention strategies for ischemic stroke in Taiwan.
Main Methods:
- A cohort of 541 patients with first-ever ischemic stroke was analyzed.
- Clinical and laboratory data were assessed for relevance to carotid atherosclerosis.
- B-mode ultrasonography was used to diagnose the degree of carotid stenosis.
Main Results:
- The study included 325 men and 216 women.
- 20% of patients had a carotid stenosis of 50% or greater.
- Advanced age (OR=2.15) and smoking (OR=1.52) were significantly associated with severe carotid stenosis (> or = 50%).
Conclusions:
- Age and smoking are identified as independent risk factors for carotid atherosclerosis.
- These findings enhance understanding for the primary prevention of ischemic stroke.
- The results have implications for public health initiatives in Taiwan.
Objective:
The aim of this study is to identify the risk factors of extracranial carotid atherosclerosis in patients with first-ever ischemic stroke.
Material And Methods:
A total of 541 consecutive first-ever ischemic stroke patients were enrolled in the present study. We examined clinical and laboratory factors that were potentially relevant to extracranial carotid artery atherosclerosis. The degree of carotid stenosis was diagnosed based on B-mode ultrasonography.
Results:
The sample contained 325 men and 216 women. Among these patients, 80% had a < 50% carotid stenosis and 20% had a > or = 50% carotid stenosis. Multiple logistic regression analysis revealed that age (odds ratio = 2.15, 95% CI = 1.06-1.11, P < 0.001) and smoking (odds ratio = 1.52, 95% CI = 1.17-3.54, P = 0.012) were significantly associated with > or = 50% carotid stenosis.
Conclusions:
In the present study, age and smoking are found to be the independent risk factors for carotid atherosclerosis. The identification of these risk factors may improve our knowledge in the primary prevention of ischemic stroke in Taiwan.
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