Echocardiographic Anatomical Risk Factors for Permanent Pacemaker Implantation After Transcatheter Aortic Valve...

Area of Science:

• Cardiology
• Interventional Cardiology
• Cardiac Surgery

Background:

• Transcatheter aortic valve replacement (TAVR) is a transformative treatment for aortic valve disease.
• Pacemaker implantation is a frequent complication following TAVR procedures.
• Identifying patients at high risk for pacemaker implantation is crucial for optimizing TAVR outcomes.

Purpose of the Study:

• To estimate the incidence of permanent pacemaker implantation after TAVR.
• To identify preoperative and echocardiographic risk factors associated with pacemaker implantation.
• To develop a predictive model for pacemaker implantation post-TAVR.

Main Methods:

• Retrospective cohort study of 234 adult patients undergoing TAVR.
• Comparison of patients who received a pacemaker versus those who did not.
• Evaluation of preoperative and echocardiographic factors, including implantation depth.
• Development of a predictive model using multiple logistic regression.

Main Results:

• The pacemaker implantation rate was 14% in the study cohort.
• Significant risk factors included older age, female sex, larger body surface area, right bundle branch block, first-degree atrioventricular block, and deeper implantation depth.
• The predictive model showed strong performance with an AUC of 0.934.

Conclusions:

• A robust predictive model for pacemaker implantation after TAVR was developed.
• The model incorporates six independent risk factors, combining classic risk factors with echocardiographic measurements.
• This model can aid in identifying patients at higher risk for pacemaker implantation post-TAVR.