Why the study?
Does precordial mapping characterize the time course of Q-wave development and R-wave reduction in patients with acute anterior myocardial infarction?
Population
42 patients with acute anterior myocardial infarction (AMI)
Design
Cohort
Follow-up
48 hours
Authors
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May narrow the salvage window in anterior MI; leaves open whether precordial mapping improves outcomes in prospective trials.
Does precordial mapping characterize the time course of Q-wave development and R-wave reduction in patients with acute anterior myocardial infarction?
Precordial mapping demonstrates that Q-wave development and R-wave reduction occur rapidly (mean 9 hours) after anterior AMI, suggesting a very narrow critical period for intervention unless extension of necrosis occurs.
Essen et al. (1980) studied this question.
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