期刊
INTERNATIONAL JOURNAL OF CARDIOLOGY
卷 348, 期 -, 页码 1-8出版社
ELSEVIER IRELAND LTD
DOI: 10.1016/j.ijcard.2021.12.013
关键词
Coronary artery disease; Ischemic heart disease; Functional imaging; Atherosclerosis
Patients with ischemia and no obstructive coronary artery disease (INOCA) have an increased risk of adverse cardiovascular events due to underlying coronary microvascular dysfunction (CMD), leading to recurrent clinical presentations, impaired function, and high healthcare costs.
A large proportion of patients with suspected obstructive coronary artery disease (CAD) is found to have ischemia with no obstructive coronary artery disease (INOCA). Based on current evidence, these patients are at increased risk of adverse cardiovascular events, even though they have no obstructive CAD. Importantly, INOCA is associated with recurrent clinical presentations with chest pain, impaired functional capacity, reduced health-related quality of life, and high healthcare costs. Underlying coronary microvascular dysfunction (CMD), through endothelium-dependent and independent mechanisms contribute to these adverse outcomes in INOCA. While non-invasive and invasive diagnostic testing has typically focused on identification of obstructive CAD in symptomatic patients, functional testing to detect coronary epicardial and microvascular dysfunction should be considered in those with INOCA who have persistent angina. Current diagnostic methods to clarify functional abnormalities and treatment strategies for epicardial and/or microvascular dysfunction in INOCA are reviewed.
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