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Impact of multipoint pacing on projected battery longevity in cardiac resynchronization therapy. An IRON‐MPP study sub‐analysis
Author(s) -
Forleo Giovanni B.,
Gasperetti Alessio,
Ricciardi Danilo,
Curnis Antonio,
Bertaglia Emanuele,
Calò Leonardo,
Pignalberi Carlo,
Calzolari Vittorio,
Ribatti Valentina,
Lavalle Carlo,
Potenza Domenico,
Tondi Lara,
Natale Veronica,
Notarstefano Pasquale,
Viecca Maurizio,
Morani Giovanni,
Biffi Mauro,
Giammaria Massimo,
Za Francesco,
Santini Luca
Publication year - 2019
Publication title -
journal of cardiovascular electrophysiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.193
H-Index - 138
eISSN - 1540-8167
pISSN - 1045-3873
DOI - 10.1111/jce.14254
Subject(s) - cardiac resynchronization therapy , medicine , cardiology , longevity , ventricular pacing , battery (electricity) , implantable cardioverter defibrillator , heart failure , ejection fraction , gerontology , power (physics) , physics , quantum mechanics
Background Multipoint pacing (MPP) may improve clinical outcomes in patients with cardiac resynchronization therapy defibrillators (CRT‐D), but its impact on battery longevity in a real‐world population has not been investigated in large trials. Objective Compare projected battery longevity in CRT‐D patients with and without MPP during long‐term follow‐up. Methods The Italian registry on multipoint left ventricular pacing (IRON‐MPP) is a prospective, multicenter registry of patients implanted with MPP‐capable CRT‐D devices. Projected battery longevity during follow‐up was compared for patients with MPP (MPP ON) vs single‐site (MPP OFF) left ventricular pacing at CRT‐D implantation. A sub‐analysis excluded crossover patients with MPP activation or deactivation occurring after implantation. A second sub‐analysis excluded patients with a right or left ventricular pacing amplitude >2.5 V. Results Out of 237 CRT‐D patients (71 ± 9 years, 81% male) followed for 1.9 ± 0.8 years, 102 (43%) had MPP ON at implantation. Programmed atrial and ventricular outputs and percentage of pacing were similar between groups. MPP was associated with a 0.44 years reduction in projected battery longevity ( P = .03) during long‐term follow‐up. Results were similar for the first and second sub‐analyses, with a 0.57 years ( P < .001) and 0.71 years ( P < .001) reduction in projected longevity, respectively. Conclusion In this long‐term real‐world registry, early MPP activation is associated with less than a 1‐year reduction in projected battery life compared to single‐site biventricular pacing.