Coronary flow velocity during coronary angioplasty in regions of myocardial infarction.
In patients undergoing angioplasty for angina after myocardial infarction, patterns of post-stenotic coronary blood flow velocity depend not only on satisfactory dilation of the flow-limiting lesion, but also on the vasoregulatory capacity of infarcted myocardium. The case examples demonstrate both normal and persistently abnormal flow velocity patterns following successful coronary angioplasty for post-infarction ischemia. Recognition of collateral flow patterns, easily available using the Doppler angioplasty guidewire, may provide valuable information predicting the viability of post-infarcted myocardium and the resolution of abnormal distal coronary flow patterns.
Moore
J A
JA
Department of Internal Medicine, St. Louis University Hospital, Missouri 63110.
Kern
M J
MJ
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D015906:Angioplasty, Balloon, Coronary; D001783:Blood Flow Velocity; D003326:Coronary Circulation; D006801:Humans; D008297:Male; D009203:Myocardial Infarction / Q000503:physiopathology* / Q000628:therapy*; D012039:Regional Blood Flow