Author + information
- Oral Waldo,
- Shuang Liu,
- Tripta Kaur,
- Ali Ahoui,
- Luis Scott and
- Tasneem Naqvi
Background: Guidelines indicate Biv pacemaker (PM) in pts with left ventricular (LV) EF <35% who need >40% right ventricular (RV) pacing. We examined the effect of chronic RV pacing in pts with baseline LVEF >50%.
Methods: 80/220 pts with insertion of RV PM for bradycardia b/w 2006-16, and baseline LVEF >50%, were retrospectively evaluated. We compared the first 40 pts in a 1:1 for ≥ 50% vs < 50% RV pacing.
Results: Data are shown in Table 1 and Figure 1. Pts with >50% RV pacing had decreased deceleration time (DT) at follow-up (240ms ±76) vs (197±50) (P=0.001). No change in DT was seen in the <50% PM group (232±58) vs (225±65) (P=0.017).
Conclusions: Pts with normal LVEF, with >50% RV pacing have worse diastolic and systolic function, & increased CHF admissions. This suggests the need for revision of criteria for Biv pacing.
Moderated Poster Contributions
Heart Failure and Cardiomyopathies Moderated Poster Theater, Poster Hall, Hall C
Sunday, March 19, 2017, 9:45 a.m.-9:55 a.m.
Session Title: Leading Us Astray? Pacemakers in Cardiomyopathies
Abstract Category: 14. Heart Failure and Cardiomyopathies: Therapy
Presentation Number: 1308M-03
- 2017 American College of Cardiology Foundation