New Q waves on the presenting electrocardiogram ...
with the development of Q waves on the electrocardio- gram (ECG), ... a non-Q-wave infarction developed congestive heart failure (New York Heart Association Class 111 or IV). In con- trast, 18 % of patients with previously abnormal QRS com- plexes and non-Q-wave infarctions developed CHF, an TABLE 111 Correlation of ECG with in-hospital congestive heart failure Prevalence of class I11 or IV ... ................
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