Heart failure & cardiomyopathiesSecondary analysis

Multipoint pacing is associated with improved prognosis and cardiac resynchronization therapy response: MORE-CRT multipoint pacing (MPP) randomized study secondary analyses

EuropacePublished

  • Secondary analysis of the MORE-CRT MPP randomised trial

Authors' conclusion

In patients who do not respond to standard CRT despite the high BIV pacing percentage, MPP is associated with lower occurrence of HF hospitalizations and higher probability of reverse LV remodelling compared with BIV pacing.

Study context

Population
Cardiac resynchronization therapy (CRT) non-responders (LV end-systolic volume (LVESV) relative reduction <15% after 6 months of biventricular (BIV) pacing) with heart failure (HF), reduced EF and prolonged QRS, BIV pacing >97% before randomisation1,639 randomised
Participants
593 participants
Comparison
MPP vs BIV pacing in CRT non-responders
  • MPPn = 291
  • BIVn = 302reference
Primary endpoint
Composite of freedom from cardiac death and HF hospitalizations and LVESV relative reduction ≥15%
Follow-up
12 months

Primary result

As reported in the abstract

Hazard ratio

1.55

95% CI 1.02–2.34

P = 0.0402

Events by treatment group

MPP vs BIV
HR 1.55 (95% CI 1.02–2.34); P = 0.0402

Further findings

HF hospitalizations

IRR 50% · P = 0.0245

Reverse remodelling, dispersion of interventricular electrical delay >30 ms (subgroup)

P = 0.0335

  • Reverse remodelling, dispersion of interventricular electrical delay >30 ms (subgroup): MPP n=51, BIV n=62

Original publication

Multipoint pacing is associated with improved prognosis and cardiac resynchronization therapy response: MORE-CRT MPP randomized study secondary analyses. Europace. Published 4 October 2024. doi:10.1093/europace/euae259

Summarised from the published abstract; every number is checked against it