title: Myocardial ischemia with aortocoronary artery gradient reversal during right coronary angioplasty.
abstract: Aortocoronary gradients are useful in assessing luminal obstructions and collateral supply during PTCA. Reversibility of collateral flow is demonstrated in a 51-year old angina patient.
authors.affiliation: Department of Internal Medicine, St. Louis University Hospital, Missouri.
authors.forename: Y
authors.initials: Y
authors.lastname: Shah
authors.forename: M J
authors.initials: MJ
authors.lastname: Kern
mesh_terms: D000787:Angina Pectoris / Q000503:physiopathology / Q000628:therapy*; D000792:Angiography; D000800:Angioplasty, Balloon; D003097:Collateral Circulation; D017023:Coronary Angiography; D003326:Coronary Circulation; D004562:Electrocardiography; D006801:Humans; D008297:Male; D008875:Middle Aged