Heart failure & cardiomyopathies

A multiparametric heart failure score at baseline is associated with long-term outcome in patients with remotely monitored implantable cardioverter-defibrillators: A pooled analysis of 9 clinical trials

Heart RhythmPublished Pooled analysis of 9 clinical trials

Pooled result · Death or WHFHResult — go to the resultAdjusted hazard ratio 2.05 95% CI 1.54–2.71

Authors' conclusion

Based on a retrospective analysis of clinical trial data with adjudicated events, baseline HF Score derived from device-monitored variables was able to stratify patients at higher long-term risk of death or WHFH.

Study context

Population
ICD patients with preimplantation EF ≤35%, NYHA class II/III, no long-standing AF, remotely monitored (HeartInsight algorithm)
Participants
1,841 patients · 9 clinical trials
Comparison
High vs low baseline heart failure (HF) Score
Outcome
Composite of:
  • Death
  • Worsening HF hospitalization (WHFH)
Follow-up
Median 631 days (IQR 385-865 days)
Methodological detailsretrospective, adjudicated events
  • Retrospective
  • Adjudicated events

Pooled result

Death or WHFH

Adjusted hazard ratio

2.05

95% CI 1.54–2.71

P < 0.0001

High HF Score vs Low HF Score
adjusted HR 2.05 (95% CI 1.54–2.71); P < 0.0001

As reported in the abstract

Primary end point occurred (overall)
265 patients (14.4%)

Further pooled results

All-cause death · median follow-up 631 days

ComparisonHR (CI)P value
High baseline HF Score2.37 (1.56–3.58)P < 0.0001

CV death · median follow-up 631 days

ComparisonHR (CI)P value
High baseline HF Score2.19 (1.14–4.22)P = 0.019

WHFH · median follow-up 631 days

ComparisonHR (CI)P value
High baseline HF Score1.91 (1.35–2.71)P = 0.0003
All-cause death — Deaths, overall cohort
122 (6.6%)
CV death — CV deaths, overall cohort
52 (42.6%) of deaths
WHFH — worsening heart failure hospitalizations (WHFHs), overall cohort
243 WHFHs in 173 patients (9.4%)

Hierarchical outcome: all-cause death (highest priority), then repeated WHFHs

Win ratio
2.47 (CI, 1.89-3.24; P < .0001)

Parts of this Brief are withheld: the automatic checks could not confirm them against the abstract.

Original publication

A multiparametric heart failure score at baseline is associated with long-term outcome in patients with remotely monitored implantable cardioverter-defibrillators: A pooled analysis of 9 clinical trials. Heart Rhythm. Published 9 October 2024. doi:10.1016/j.hrthm.2024.10.005

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

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