Exertional syncope in a patient with aortic stenosis and right coronary artery disease.
case_report · Level V
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- Record sourced from PubMed, PMID 7744101.
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Abstract
A female with advanced aortic valvular stenosis and moderate right coronary artery disease experienced an exertional syncope during 24-h ambulatory electrocardiographic monitoring. A progressive bradycardia with 90-s sinus node arrest (cardio-inhibitory response) and premonitory angina pectoris with significant ST segment changes were demonstrated. Our report supports the concept of a neurocardiogenic (vasovagal) mechanism of exertional syncope in patients with aortic stenosis. The predominant left ventricular inferior-wall myocardial ischaemia in our patient might be an additional stimulus to left ventricular mechanoreceptors, resulting in a profound cardio-inhibitory response.
Medical subject headings
- Aortic Valve Stenosis
- Coronary Disease
- Syncope