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Randomized Controlled Trial
. 2025 Mar 5;27(3):euaf029.
doi: 10.1093/europace/euaf029.

Biventricular vs. right ventricular pacing devices in patients anticipated to require frequent ventricular pacing (BioPace)

Affiliations
Randomized Controlled Trial

Biventricular vs. right ventricular pacing devices in patients anticipated to require frequent ventricular pacing (BioPace)

Reinhard C Funck et al. Europace. .

Erratum in

Abstract

Aims: Right ventricular (RV) pacing may promote left ventricular (LV) dysfunction. Particularly in patients with preserved LV ejection fraction (LVEF), narrow QRS, and anticipated high ventricular pacing burden (HVPB), evidence is missing that biventricular (BiV) pacing can improve clinical outcome. We therefore evaluated whether implantation of a BiV pacing device (BiVPD) compared with a RV pacing device (RVPD) may improve clinical outcome in predominantly this kind of patients.

Methods and results: In the Biventricular Pacing for atrioventricular Block to Prevent Cardiac Desynchronization (BioPace) trial [multicentre, single-blinded (patients), randomized, parallel group], patients were equally allocated to either receive a BiVPD or a RVPD. Co-primary endpoints were (i) the composite of time to death or first heart failure hospitalization and (ii) survival time. We analysed 1810 randomized patients (median age: 73.5 years; female sex: 31.7%; mean LVEF 55.4%; mean QRS 118.4 ms), 902 to BiV and 908 to RV pacing. During mean follow-up of 68.8 months, the difference in the primary composite endpoint between both groups [346 vs. 363 events, hazard ratio (HR) 0.878; 95% confidence interval (CI) 0.756-1.020; P = 0.0882) or in mortality (305 vs. 307 deaths, HR 0.926; 95% CI 0.789-1.088; P = 0.3492) was smaller than 20%.

Conclusion: In patients, predominantly with preserved LVEF, narrow QRS, and HVPB, superiority of implanting BiVPDs compared with RVPDs could not be proven. Right ventricular pacing may be less harmful for this kind of patients than often suggested and primary BiV pacing does not clearly improve their clinical outcome.

Clinical trial registration: Registered in ClinicalTrials.gov, number NCT00187278 (https://clinicaltrials.gov/ct2/show/study/NCT00187278).

Keywords: Biventricular pacing; Cardiac pacing; Heart failure; Mortality; Pacing-induced cardiomyopathy; Right ventricular pacing.

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Conflict of interest statement

Conflict of interest: R.C.F. received consultancy/lecture fees and refunding of travel cost/congress registration fees from Abbott CRM with respect of the conduct of the study. H.-H.M. received refunding of travel costs from Abbott with respect of the conduct of the study. M.L. received grants and consultancy/lecture fees from Abbott. M.D.C. received personal fees from Abbott. M.W. received grants and personal fees from Abbott with respect to the conduct of the study. G.H. received research grants through the Heart Center Leipzig from Abbott.

Figures

Graphical Abstract
Graphical Abstract
Figure 1
Figure 1
Trial profile representing patient randomization, device implantation, re-implant attempts, hardware status, and functional status at 3 months after initial implant. * Successful LV lead implant during second attempt within 3 months after initial implant attempt. ** LV lead deactivated right after implantation (patient received BiV device despite having been randomized to RV). *** Upgrade to BiV within first 3 months after initial implant (physician´s decision). **** Loss of left ventricular capture and re-implantation of LV lead 2 days after initial implantation. BiV, biventricular; LV, left ventricular; RV, right ventricular; WIC, written informed consent.
Figure 2
Figure 2
(A) Time to death or first hospitalization. (B) Survival time. Kaplan–Meier estimates are shown for the comparison of patients with RV and BiV pacing. BiV, biventricular; CI, confidence interval; RV, right ventricular.

References

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