Electrocardiographic diagnosis of left circumflex artery occlusion and the occlusion site.
In patients with a posteroinferior acute myocardial infarction and both ST depression (in lead V1 or V2) and ST elevation in the inferior leads, it is difficult to differentiate a left circumflex artery occlusion from a right coronary artery occlusion. Furthermore, there is no useful method to identify the obstruction site in the left circumflex artery. In a study of 52 patients with single-vessel left circumflex artery disease, ST elevation in V6 was found to be a useful indicator for left circumflex artery occlusion in such patients. Furthermore, the sum of the ST changes in leads a VF and V2 is useful for identifying the occluded site in the left circumflex artery.
Mikuriya
Y
Y
Second Department of Internal Medicine, Oita Medical University.
Tatsukawa
Y
Y
Tamura
A
A
Nasu
M
M
D000368:Aged; D000800:Angioplasty, Balloon; D003327:Coronary Disease / Q000175:diagnosis* / Q000473:pathology / Q000628:therapy; D003331:Coronary Vessels / Q000473:pathology; D004562:Electrocardiography / Q000706:statistics & numerical data; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000175:diagnosis / Q000473:pathology / Q000628:therapy; D012680:Sensitivity and Specificity