Coronary microvascular dysfunction is associated with cardiac time intervals in women with angina and no obstructive coronary artery disease: An iPOWER substudy

Background Coronary microvascular dysfunction ( CMD ) may cause angina in the absence of obstructive coronary artery disease ( CAD ) and increases the risk of future adverse cardiovascular events. Transthoracic Doppler echocardiography ( TTDE ) with pharmacological stress can assess coronary flow velocity reserve ( CFVR ), a measure of coronary microvascular function. However, simpler methods would be preferable for diagnosing CMD . Therefore,...