"Endothelial dysfunction is a condition characterised by an impairment in the endothelium’s vasodilatory capacity due to an abnormal response to physiological stimuli that regulate vascular tone, inflammation, permeability, and thrombosis. This dysfunction contributes to the progression of atherosclerotic disease, vasospasm, and microvascular dysfunction1."
"Another invasive option includes the use of intravascular ultrasound or strain-gauge plethysmography in combination with intra-arterial administration of vasoactive agents. These methods allow the evaluation of endothelial responses in resistance vessels but remain mainly confined to research settings due to their invasiveness3."
"Carotid Intima-Media Thickness (IMT): An increased IMT in the carotid arteries may reflect endothelial damage and serves as a marker of subclinical atherosclerosis5."
"Management of endothelial dysfunction focuses on addressing underlying risk factors and implementing targeted pharmacological strategies1:"
"higher incidence in women, especially those with cardiac syndrome X or angina without obstructive coronary disease."
"exercise intolerance, particularly in women with angiographically normal coronary arteries."
"proven myocardial ischaemia in approximately 50-70% of women and 30-50% of men are attributed to endothelial dysfunction without significant coronary obstruction 2-3"
"Among non-invasive approaches, flow-mediated dilation (FMD) of the brachial artery Doppler assessment is the most commonly used. It measures arterial diameter changes after transient occlusion-induced hyperaemia, reflecting nitric oxide–dependent endothelial function. Although widely applied, FMD requires trained personnel and can be subject to technical and biological variability."
"Invasive Techniques"
"Non-Invasive Techniques"
"Neurological Diseases"
"Pulmonary Diseases"
"Renal Disorders"
"Sexual Dysfunction"
"Lifestyle Modifications"
"Endothelial dysfunction is a functional impairment of the vascular endothelium characterised by reduced vasodilatory, anti-inflammatory, antithrombotic, and antioxidant activity. It arises from a disruption in the balance between vasodilators (primarily nitric oxide, NO) and vasoconstrictors (such as endothelin-1 and angiotensin II), leading to vascular homoeostasis breakdown. Below are the major underlying mechanisms 4:"
"ACE inhibitors: promote vasodilation and reduce blood pressure; beneficial for endothelial health"
"angiotensin II receptor blockers (ARBs): offer similar vascular protective effects as ACE inhibitors"
"Pulmonary hypertension"
"Brachial artery Doppler assessment for detecting endothelial dysfunction flow-mediated dilation (FMD): assesses the vasodilatory capacity of the brachial artery in response to reactive hyperaemia; a diminished response indicates endothelial dysfunction"
"statins: Improve endothelial function and reduce vascular inflammation"
Expected headings
"Invasive Techniques"
"Non-Invasive Techniques"
"Associations"
"Cardiovascular diseases"
"Metabolic diseases"
"Inflammatory and autoimmune diseases"
"Neurological Diseases"
"Pulmonary Diseases"
"Renal Disorders"
"Cancer"
"Sexual Dysfunction"
"Lifestyle Modifications"
"Brachial artery Doppler assessment for detecting endothelial dysfunction flow-mediated dilation (FMD): assesses the vasodilatory capacity of the brachial artery in response to reactive hyperaemia; a diminished response indicates endothelial dysfunction"
"ACE inhibitors: promote vasodilation and reduce blood pressure; beneficial for endothelial health"