Permanent Pacemaker Implantation After Transcatheter Aortic Valve Implantation
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- 18 March 2014
- journal article
- research article
- Published by Ovid Technologies (Wolters Kluwer Health) in Circulation
- Vol. 129 (11), 1233-1243
- https://doi.org/10.1161/circulationaha.113.005479
Abstract
Background—: Very few data exist on the clinical impact of permanent pacemaker implantation (PPI) after transcatheter aortic valve implantation. The objective of this study was to assess the impact of PPI after transcatheter aortic valve implantation on late outcomes in a large cohort of patients. Methods and Results—: A total of 1556 consecutive patients without prior PPI undergoing transcatheter aortic valve implantation were included. Of them, 239 patients (15.4%) required a PPI within the first 30 days after transcatheter aortic valve implantation. At a mean follow-up of 22±17 months, no association was observed between the need for 30-day PPI and all-cause mortality (hazard ratio, 0.98; 95% confidence interval, 0.74–1.30; P =0.871), cardiovascular mortality (hazard ratio, 0.81; 95% confidence interval, 0.56–1.17; P =0.270), and all-cause mortality or rehospitalization for heart failure (hazard ratio, 1.00; 95% confidence interval, 0.77–1.30; P =0.980). A lower rate of unexpected (sudden or unknown) death was observed in patients with PPI (hazard ratio, 0.31; 95% confidence interval, 0.11–0.85; P =0.023). Patients with new PPI showed a poorer evolution of left ventricular ejection fraction over time ( P =0.017), and new PPI was an independent predictor of left ventricular ejection fraction decrease at the 6- to 12-month follow-up (estimated coefficient, −2.26; 95% confidence interval, −4.07 to −0.44; P =0.013; R 2 =0.121). Conclusions—: The need for PPI was a frequent complication of transcatheter aortic valve implantation, but it was not associated with any increase in overall or cardiovascular death or rehospitalization for heart failure after a mean follow-up of ≈2 years. Indeed, 30-day PPI was a protective factor for the occurrence of unexpected (sudden or unknown) death. However, new PPI did have a negative effect on left ventricular function over time.This publication has 40 references indexed in Scilit:
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