Incidence and predictors of permanent pacemaker implantation following transcatheter aortic valve implantation: analysis from the German transcatheter aortic valve interventions registry.

OBJECTIVES: To determine predictors of permanent pacemaker (PPM) implantation up to 30 days after transcatheter aortic valve implantation (TAVI) in a prospective multicenter registry.
BACKGROUND: Conduction disorders requiring PPM implantation are one of the most common complications seen after TAVI. Knowledge about possible predictors may help to decrease the rate of PPM implantations.
METHODS: In total, 1347 consecutive patients who underwent TAVI in 22 centers were prospectively enrolled in the German transcatheter aortic valve interventions registry. Both Medtronic CoreValve™ and Edwards Sapien™ valves were implanted. Patients with preprocedurally implanted PPM or implantable cardioverter defibrillator were excluded from the analysis (n = 199). Regression analysis of baseline and procedure characteristics of the remaining 1,147 patients was performed.
RESULTS: Procedural success was achieved in 97.4% of the cases. The rate for PPM after TAVI was 33.7%. The absence of prior valve surgery, the use of Medtronic CoreValve™ prosthesis and the presence of a porcelain aorta were identified as independent predictors for PPM after TAVI. Mortality at 30 days did not differ between patients with or without PPM necessity (6.0% vs. 8.1%, respectively; HR 0.72; CI (0.45-1.16); P = 0.17).
CONCLUSIONS: PPM is a common postprocedure requirement after TAVI. The absence of prior valve surgery, the implantation of Medtronic CoreValve™ prosthesis, and the presence of a porcelain aorta were independently associated with PPM after TAVI.