Analysis of high-resolution ECG changes during percutaneous transluminal coronary angioplasty.
The authors have hypothesized that low-level, electrocardiographic changes may accompany transient ischemia induced by percutaneous transluminal coronary angioplasty. Altered repolarization may manifest as subclinical changes in ST-T morphology. Changes in depolarization may manifest as low-amplitude notches and slurs, a phenomenon the authors term abnormal intra-QRS potentials. The initial aim of this study was to characterize changes in high-resolution electrocardiograph signals that might be linked to ischemic involvement of the ventricular myocardium.
Lander
P
P
University of Oklahoma Health Sciences Center, Oklahoma City, USA.
Gomis
P
P
Hartman
G
G
Gates
K
K
Petterson
J
J
Wagner
G
G
D015906:Angioplasty, Balloon, Coronary; D003327:Coronary Disease / Q000503:physiopathology / Q000628:therapy; D004562:Electrocardiography / Q000379:methods*; D006329:Heart Conduction System / Q000503:physiopathology; D006352:Heart Ventricles / Q000503:physiopathology; D006801:Humans; D017202:Myocardial Ischemia / Q000503:physiopathology; D012815:Signal Processing, Computer-Assisted