Vascular stenosis

Vascular stenosis refers to the pathological narrowing of blood vessels, most commonly arteries, due to atherosclerosis (plaque buildup of cholesterol, fats, and other substances), leading to restricted blood flow, reduced oxygen and nutrient delivery to tissues, and strain on the cardiovascular system. This condition manifests in specific forms such as carotid artery stenosis (increasing stroke risk), aortic valve stenosis (causing heart strain and potential failure), coronary artery stenosis (leading to ischemia), renal artery stenosis (contributing to hypertension and kidney damage), and peripheral artery stenosis (causing limb pain and ischemia). It arises from risk factors like high cholesterol, hypertension, smoking, diabetes, and aging, progressively worsening if untreated and potentially resulting in severe complications including heart attack, stroke, organ failure, or limb loss. Diagnosis relies on imaging like ultrasound, CT angiography, or MRI to measure stenosis severity (e.g., >50-60% narrowing often prompts intervention). Treatments emphasize lifestyle changes, medical therapy to manage risk factors (statins, antiplatelets), and revascularization procedures such as carotid endarterectomy (CEA), stenting (CAS), or transcarotid artery revascularization (TCAR) for significant blockages. While effective, these interventions carry risks like perioperative stroke or restenosis, with guidelines favoring early action in symptomatic cases. Overall, vascular stenosis underscores the need for cardiovascular risk prevention, as it is not a discrete molecular target but a multifocal disease process amenable to mechanical and conservative management.

Other names

Blood vessel narrowingarterial stenosisvascular narrowing