Coronary Microvascular Dysfunction and Hypertension: A Bond More Important than We Think

Area of Science:

• Cardiology
• Hypertension Research
• Vascular Biology

Background:

• Coronary microvascular dysfunction (CMD) is a significant factor in cardiac morbidity and mortality, often linked to hypertension.
• Hypertension induces functional and structural microvascular changes, leading to microvascular angina through endothelial dysfunction and capillary rarefaction.
• CMD is associated with myocardial changes like left ventricular hypertrophy and diastolic dysfunction, serving as a marker for heart failure with preserved ejection fraction.

Purpose of the Study:

• To review the pathophysiological mechanisms of CMD in hypertensive patients.
• To provide an integrated diagnostic approach for CMD.
• To offer an overview of current therapeutic strategies for CMD.

Main Methods:

• Comprehensive literature review focusing on CMD pathophysiology, diagnosis, and treatment in hypertensive individuals.
• Analysis of diagnostic modalities, including non-invasive and invasive techniques.
• Evaluation of therapeutic options and their impact on prognosis.

Main Results:

• Hypertension significantly contributes to CMD via endothelial dysfunction and capillary rarefaction.
• CMD is an early indicator of end-organ damage and heart failure, particularly in hypertensive patients.
• Numerous diagnostic tools exist to assess CMD severity and guide treatment.

Conclusions:

• CMD in hypertensive patients is a critical clinical entity requiring thorough investigation.
• Screening for microvascular angina is essential in hypertensive patients with chest pain and no obstructive coronary artery disease.
• An integrated diagnostic and therapeutic approach is vital for managing CMD and improving patient outcomes.