Key result
Following cardiac surgery, 1.4% of patients required permanent pacemaker implantation, with left bundle branch block and aortic valve replacement identified as significant predictors (P<0.001).
Why the study?
What are the predictors for permanent pacemaker requirement and long-term dependency following cardiac surgery?
Population
4,999 patients undergoing cardiac surgery between 1993 and 2005, mean age 64 +/- 12 years, 71% male.
Design
Cohort
Follow-up
72 +/- 32 months (late follow-up)
Authors
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May guide closer post-op monitoring in LBBB or AVR patients; leaves open impact on long-term dependency.
Cohort (n=4,999)
What are the predictors for permanent pacemaker requirement and long-term dependency following cardiac surgery?
p-value: p=<0.001
Preexisting left bundle branch block and aortic valve replacement are significant predictors for requiring a permanent pacemaker after cardiac surgery, with about two-thirds remaining pacemaker dependent long-term.
Merin et al. (2008) conducted a cohort in Cardiac surgery (n=4,999). Left bundle branch block and aortic valve replacement vs. Absence of these predictors was evaluated on Requirement of permanent pacemaker implantation after surgery (p=<0.001). Following cardiac surgery, 1.4% of patients required permanent pacemaker implantation, with left bundle branch block and aortic valve replacement identified as significant predictors (P<0.001).
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