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Updated: Sep 2, 2025

Author Spotlight: Assessing the Cardiovascular Profile of Patients with Metabolic Syndrome
Published on: September 27, 2024
Cardiac and Vascular Causes of Syncope and Atherosclerosis
Rose Mary Ferreira Lisboa da Silva1, Josep Brugada2
1Department of Internal Medicine, Faculty of Medicine, Federal University of Minas Gerais, Avenue Alfredo Balena, 190, room 246, Centro, ZIP Code 30.130-100, Belo Horizonte, MG, Brazil. roselisboa@uol.com.br.
Insights
Cardiac syncope, often caused by arrhythmias and ischemic heart disease, is linked to atherosclerosis. Early identification of warning signs is crucial for risk stratification and improving patient outcomes in cardiac syncope.
Area of Science:
- Cardiology
- Geriatrics
- Vascular Medicine
Background:
- Cardiac syncope is a significant concern, particularly in elderly populations, with a reported frequency of up to 34%.
- Atherosclerosis is a key underlying factor in many cardiac and vascular syncope cases, involving arrhythmias or structural heart and artery issues.
Purpose of the Study:
- To review the primary causes of cardiac and vascular syncope linked to atherosclerosis.
- To explore epidemiological and clinical aspects, warning signs, and initial management strategies for syncope.
Main Methods:
- This is a review article, synthesizing existing literature on cardiac and vascular syncope.
- Focuses on atherosclerosis-related etiologies, clinical presentation, and prognostic indicators.
Main Results:
- Cardiac syncope, especially when linked to myocardial ischemia (e.g., ventricular tachycardia, AV block), is associated with increased mortality.
- Concentric remodeling and aortic stenosis are identified as significant prognostic factors in cardiac syncope.
- Cardiac syncope exhibits high recurrence and mortality rates, necessitating careful risk stratification.
Conclusions:
- Atherosclerosis-related cardiac and vascular syncope requires thorough evaluation due to its high mortality and recurrence.
- Recognizing red flag alerts is essential for accurate risk stratification and timely intervention.
Purpose Of Review:
Among the most common causes of cardiac syncope are arrhythmias and ischemic heart disease, both of which can coexist. The purpose of this review is to discuss the main causes of cardiac and vascular syncope related to atherosclerosis, its epidemiological and clinical aspects, warning signs, and initial approach.
Recent Findings:
Cardiac syncope may have a frequency of up to 34% in elderly people. Atherosclerosis-related causes of cardiac and vascular syncope may be due to cardiac arrhythmia and/or structural impairment of the heart or arteries. Late ventricular tachycardia and late-onset high-grade atrioventricular block associated with myocardial ischemia may occur with syncope, which is related to higher mortality. Besides ventricular dysfunction, concentric remodeling is also a prognostic factor. In calcific degenerative aortic stenosis, syncope carries a worse prognosis than the other cardinal signs. Cardiac syncope has a high recurrence and mortality rate. There are red flag alerts that must be considered in risk stratification.
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