April 1, 1973Circulation
Immediate and Remote Prognostic Significance of Fascicular Block during Acute Myocardial Infarction
Why the study?
Does the presence of specific fascicular blocks predict acute type II A-V block and 1-year syncope or sudden death in patients with acute myocardial infarction?
Population
538 patients with acute myocardial infarction
Comparison
Presence of specific atrioventricular and… vs Patients without these specific high-risk…
Design
Cohort
Follow-up
1 year
Authors
Discussion
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Member takes
Implication
High-risk patterns in AMI may warrant monitoring; leaves open whether prophylactic pacing reduces events without RCTs.
Structured PICO
Does the presence of specific fascicular blocks predict acute type II A-V block and 1-year syncope or sudden death in patients with acute myocardial infarction?
P
Population
538 patients with acute myocardial infarction
I
Intervention
Presence of specific atrioventricular (A-V) and intraventricular (I-V) conduction disturbances (fascicular block)
C
Comparator
Patients without these specific high-risk conduction disturbances
O
Outcome
Development of type II A-V block acutely and syncope or sudden death during the first year of follow-uphard clinical
Specific fascicular block patterns during acute myocardial infarction identify patients at high risk for progression to type II AV block and subsequent sudden death, suggesting a potential role for prophylactic pacemaker insertion.
Cite This Study
Waugh et al. (1973) studied this question.