Carotid plaque characteristics and presenting symptom

Area of Science:

• Vascular Neurology
• Medical Imaging
• Cardiovascular Research

Background:

• Identifying predictors of stroke beyond stenosis degree is crucial.
• Carotid artery disease plaque characteristics are increasingly recognized as important indicators.
• This study investigated the link between carotid plaque features and patient symptoms.

Purpose of the Study:

• To assess the relationship between carotid plaque morphology and surface features and presenting symptoms in patients with significant internal carotid stenosis.
• To determine if specific plaque characteristics predict stroke occurrence or type.

Main Methods:

• Color-flow duplex imaging was used to study 285 symptomatic and 65 asymptomatic patients with 60-99% internal carotid stenosis.
• Carotid plaque morphology was classified using the Gray-Weale criteria.
• Plaque surface features (smooth, irregular, ulcerated) were assessed.

Main Results:

• Plaque Types I and II were significantly more prevalent in symptomatic patients (83% vs. 44%, P < 0.0001).
• Plaque ulceration was more common in symptomatic individuals (23% vs. 14%, P = 0.04).
• No association was found between presenting symptom type and plaque morphology or surface features (P = 0.9 and P = 0.8).

Conclusions:

• Echolucent carotid plaques (Types I and II) are associated with the presence of symptoms, but not the specific type of symptom.
• Plaque morphology did not differentiate patients experiencing stroke without warning from other symptomatic groups.
• Prospective studies on plaque morphology in asymptomatic individuals may help identify high-risk patient groups for stroke.