Key result
Permanent pacemaker implantation occurred in 6.6% of patients undergoing aortic valve replacement and was associated with higher 30-day mortality compared to controls (4.2% vs 1.0%, P=0.046).
Why the study?
What are the independent risk factors for permanent pacemaker implantation following aortic valve replacement?
Case-Control (n=425)
No
What are the independent risk factors for permanent pacemaker implantation following aortic valve replacement?
Absolute Event Rate: 4.2% vs 1%
p-value: p=0.046
Concomitant severe mitral valve insufficiency, CABG, subaortic stenosis, and re-do operations are independent predictors of permanent pacemaker implantation after aortic valve replacement, which is associated with increased 30-day mortality.
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May aid preoperative risk assessment in AVR; leaves open prospective validation before guiding practice.
Schurr et al. (2010) conducted a case-control in Aortic valve replacement (n=425). Permanent pacemaker implantation vs. No permanent pacemaker implantation was evaluated on 30-day mortality (p=0.046). Permanent pacemaker implantation occurred in 6.6% of patients undergoing aortic valve replacement and was associated with higher 30-day mortality compared to controls (4.2% vs 1.0%, P=0.046).
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