Stiffness parameter β of cardioembolism measured by carotid ultrasound was lower than other stroke subtypes

Area of Science:

• Vascular Medicine
• Neurology
• Biomedical Engineering

Background:

• Premature atherosclerosis assessment is crucial for cardiovascular risk stratification.
• Cerebral infarction (CI) encompasses diverse etiological subtypes, necessitating accurate classification.
• The stiffness parameter beta (β) value is a potential biomarker for arterial stiffness and atherosclerosis.

Purpose of the Study:

• To evaluate the clinical utility of the β value in differentiating subtypes of cerebral infarction (CI).
• To assess the relationship between β value and age across different CI subtypes and control groups.
• To determine if β value can distinguish cardioembolic stroke from other CI etiologies.

Main Methods:

• Carotid ultrasonography with echo-tracking was used to measure the β value in 31 CI patients and 38 controls.
• The β value was measured at the common carotid artery, 2.0 cm proximal to the bifurcation.
• Statistical analyses compared β values between CI subtypes and control groups, and examined age-related correlations.

Main Results:

• A positive correlation between β value and age was observed in control subjects (R=.69, P<.001), but not in CI patients (R=-.01, P=.996).
• No significant difference in β value was found between control subjects and patients with cardioembolic stroke (P=.106).
• Significantly lower β values were detected in patients with cardioembolic stroke compared to those with non-cardioembolic stroke (P=.009).

Conclusions:

• The β value is significantly lower in patients with cardioembolic stroke than in those with non-cardioembolic stroke.
• The β value demonstrates potential as a tool for risk stratification and classification of stroke subtypes.
• Further research may elucidate the role of β value in predicting stroke etiology and guiding therapeutic strategies.