The Complete Cancellation of Abnormal Q Waves Due to an Old Anteroseptal Infarction Following Subsequent Acute Posterior Myocardial Infarction

• Published in: Japanese Heart Journal Vol. 28; no. 5; pp. 805 - 810
• Main Authors: SAIKAWA, Tetsunori, ABE, Mayumi, NAKAGAWA, Mikiko, OMURA, Ichiro, TAKAKURA, Takeshi, HORITA, Shoichi, ITO, Sukenobu, TAKAKI, Ryosaburo, ITO, Morio
• Format: Journal Article
• Language: English
• Published: Tokyo International Heart Journal Association 1987; Japanese Heart Journal Association
• Subjects: Abnormal Q wave; Aged; Biological and medical sciences; Cardiology. Vascular system; Coronary heart disease; Creatine Kinase - blood; Disappearance of Q wave; Electrocardiography; Heart; Humans; Isoenzymes; Male; Medical sciences; Multiple infarction; Myocardial Infarction - enzymology; Myocardial Infarction - pathology; Myocardial Infarction - physiopathology; Recurrence; Human; Electrodiagnosis; Abnormal Q wave; Infarct; Posterior infarct; Myocardium; Cardiovascular disease; Anterior infarct; Coronary heart disease
• ISSN: 0021-4868; 1348-673X
• DOI: 10.1536/ihj.28.805

A rare case of multiple infarction is described. An abnormal Q wave due to an old anteroseptal infarction was completely masked by a new contralateral posterior myocardial infarction. Coronary angiogram revealed multiple stenoses of segments 1 (100%), 7 (99%), 12 (90%) and 13 (99%). Left ventriculography also showed akinesis of segments 2, 3, 4 and 6, and reduced wall motion in segments 1, 5 and 7. These findings, together with electrocardiographic changes from before the present attack reinforce the above interpretation.