Related Experiment Video
Updated: Jun 24, 2026

Ultrasound Assessment of Endothelial-Dependent Flow-Mediated Vasodilation of the Brachial Artery in Clinical Research
Published on: October 22, 2014
Endothelial dysfunction, vascular disease and stroke: the ARTICO study
1Servicio de Neurología, Hospital Universitari del Mar, Barcelona, Spain. jroquer@imas.imim.es
Insights
The Ankle-Brachial Index (ABI) may predict future cardiovascular events in patients who have had an ischemic stroke. This study investigates ABI
Area of Science:
- Cardiovascular Medicine
- Neurology
- Vascular Biology
Background:
- Endothelial dysfunction is a key factor in atherosclerosis, increasing risk for clinical events and plaque instability.
- Endothelial dysfunction is observed in stroke patients, correlating with stroke severity and outcomes.
- The Ankle-Brachial Index (ABI) indicates generalized atherosclerosis and predicts stroke incidence.
Purpose of the Study:
- To evaluate the prognostic value of a low Ankle-Brachial Index (ABI) for major cardiovascular events after acute ischemic stroke.
- To assess the predictive value of carotid intima-media thickness, carotid duplex findings, and biomarkers for cardiovascular events.
Main Methods:
- Prospective, observational, multicenter study (ARTICO) in 50 Spanish hospitals.
- Focus on patients with first-ever ischemic stroke.
- 1-year follow-up to monitor major cardiovascular events.
Main Results:
- A pathological ABI (
- Secondary analysis of carotid imaging and biomarkers for predictive value.
Conclusions:
- Data from ARTICO will enhance understanding of post-stroke outcomes.
- Improved identification of high-risk patients for stroke recurrence or cardiovascular events is anticipated.
Abstract:
Endothelial dysfunction is a fundamental step in the atherosclerotic disease process. Its presence is a risk factor for the development of clinical events, and may represent a marker of atherothrombotic burden. Also, endothelial dysfunction contributes to enhanced plaque vulnerability, may trigger plaque rupture, and favors thrombus formation. The assessment of endothelial vasomotion is a useful marker of atherosclerotic vascular disease. There are different methods to assess endothelial function: endothelium-dependent vasodilatation brachial flow-mediated dilation, cerebrovascular reactivity to L-arginine, and the determination of some biomarkers such as microalbuminuria, platelet function, and C-reactive protein. Endothelial dysfunction has been observed in stroke patients and has been related to stroke physiopathology, stroke subtypes, clinical severity and outcome. Resting ankle-brachial index (ABI) is also considered an indicator of generalized atherosclerosis, and a low ABI is associated with an increase in stroke incidence in the elderly. Despite all these data, there are no studies analyzing the predictive value of ABI for new cardiovascular events in patients after suffering an acute ischemic stroke. ARTICO is an ongoing prospective, observational, multicenter study being performed in 50 Spanish hospitals. The aim of the ARTICO study is to evaluate the prognostic value of a pathological ABI (
Related Concept Videos
Atherosclerosis II: Clinical Manifestations and Diagnostic Tests
Atherosclerosis I: Introduction
Coronary Artery Disease II: Pathophysiology
Hypertension III: Clinical Manifestations and Diagnostic Studies
Atherosclerosis III: Management
Hypertension II: Pathophysiology
