NCIt definition : An electrocardiographic finding in leads V1 or V2 of an initial R wave duration greater
than or equal to 40 ms, R wave greater than S wave, and upright T wave, which is suggestive
of myocardial infarction of the posterior wall of the left ventricle. Evidence of
inferior or lateral myocardial infarction is usually also present. (CDISC);
Alternative definition : CDISC: An electrocardiographic finding in leads V1 or V2 of an initial R wave duration
greater than or equal to 40 ms, R wave greater than S wave, and upright T wave, which
is suggestive of myocardial infarction of the posterior wall of the left ventricle.
Evidence of inferior or lateral myocardial infarction is usually also present.;