Alteration of coronary flow velocity during spontaneous angina in a patient with microvascular angina

Phasic coronary flow velocity in the left and right coronary artery was rec orded in a patient with microvascular angina. Coronary flow velocity during anginal attack was characterized by diminished systolic forward velocity, the appearance of systolic flow reversal, increase in diastolic flow veloci ty and its rapid deceleration. It was also accompanied with abnormal corona ry flow reserve, These findings completely recovered at follow-up examinati on, A subgroup of patients with microvascular angina may show unique and re versible coronary flow abnormalities during chest pain. (C) 2000 Wiley-Liss , Inc.