1. Pacing-induced cardiomyopathy in chronic right ventricular apical pacing: a midterm follow-up study
- Author
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Erdal Safak, Hüseyin Ince, Lito Gkouvatsou, Heinz-Peter Schultheiss, Jasmin Ortak, Evren Caglayan, Alper Oener, and Giuseppe D’Ancona
- Subjects
Right ventricular pacing ,Cardiomyopathy ,Left ventricular ejection fraction ,Medicine - Abstract
Abstract Background Data concerning the effect of chronic right ventricular pacing in patients with normal left ventricular ejection fraction (LVEF%) are contradictory. The aim of this study is to evaluate the prevalence of pacing-induced cardiomyopathy (PICM) at midterm follow-up after permanent pacemaker implantation (PPM). Methods A series of 170 patients were submitted to PPM within our facility. Inclusion criteria were the absence of structural heart disease and a preserved LVEF% (> 45%) at the time of PPM. A midterm clinical and echocardiographic follow-up was performed, and data were collected and analyzed retrospectively. PICM was defined as follow-up LVEF ≤ 45%, dyskinesia during RV pacing, and the absence of other known causes of cardiomyopathy. Results At a median echocardiographic follow-up of 24.5 months (IQR 10.0–43.0 months), the overall mean LVEF% decreased from a preimplantation value of 66.7% (± 8.6%) to 63.2% (± 10.6%) (p
- Published
- 2019
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