Complex ventricular arrhythmias in patients with Q wave versus non-Q wave myocardial infarction.
Why the study?
Are complex ventricular arrhythmias associated with higher 1-year mortality in patients with non-Q wave compared to Q wave myocardial infarction?
Population
777 patients with acute myocardial infarction (Non-Q wave n=191, Q wave anterior n=261, Q wave inferior n=325)
Comparison
Presence of complex ventricular arrhythmias… vs Absence of complex ventricular arrhythmias
Design
Cohort
Follow-up
1 year
Authors
Discussion
Loading...
Member takes
Implication
May signal higher mortality risk with complex PVCs in non-Q wave MI; hypothesis-generating, needs prospective confirmation before practice change.
Structured PICO
Are complex ventricular arrhythmias associated with higher 1-year mortality in patients with non-Q wave compared to Q wave myocardial infarction?
P
Population
777 patients with acute myocardial infarction (Non-Q wave n=191, Q wave anterior n=261, Q wave inferior n=325)
I
Intervention
Presence of complex ventricular arrhythmias (multiform PVCs, couplets, and ventricular tachycardia) detected on predischarge 24 hr ambulatory electrocardiographic examination
C
Comparator
Absence of complex ventricular arrhythmias
O
Outcome
1 year mortality after hospital dischargehard clinical
Complex ventricular arrhythmias are associated with a significantly higher 1-year mortality risk in patients with non-Q wave myocardial infarction compared to those with Q wave infarction.
Cite This Study
Maisel et al. (1985) studied this question.