[Coronary ectasis: another form of atherosclerosis]

Area of Science:

• Cardiology
• Vascular Biology

Background:

• Coronary artery disease (CAD) is a leading cause of mortality worldwide.
• Coronary ectasia, characterized by abnormal dilation of coronary arteries, is a less common finding.
• Understanding the prevalence, morphology, and clinical associations of coronary ectasia is crucial for patient management.

Purpose of the Study:

• To determine the prevalence and characteristics of coronary ectasia.
• To classify ectatic lesions based on morphology.
• To investigate the clinical presentation of patients with coronary ectasia, particularly isolated forms.

Main Methods:

• Retrospective review of 3,693 coronary angiographies.
• Identification and evaluation of patients with coronary ectasia.
• Classification of ectasia lesions using Ducceschi's morphological criteria.
• Analysis of clinical data, including angina presentation.

Main Results:

• Coronary ectasia was identified in 69 patients (1.86%) out of 3,693 angiographies.
• A total of 96 ectasia lesions were found, with the right coronary artery being the most common site.
• Diffuse lesions were the most prevalent morphological type.
• Patients with isolated ectasia showed a significantly higher incidence of atypical angina presentation.

Conclusions:

• Coronary ectasia is an uncommon finding in patients undergoing coronary angiography for suspected CAD.
• The right coronary artery is the most frequently affected vessel.
• Morphological classification reveals diffuse lesions as the predominant type.
• Isolated coronary ectasia may present with atypical angina, warranting further clinical investigation.