Heart failure & cardiomyopathies

Predicting all-cause mortality by means of a multisensor implantable defibrillator algorithm for heart failure monitoring

Heart RhythmPublished Prospective cohort study

Authors' conclusion

The HeartLogic algorithm provides an index that can be used to identify patients at higher risk for all-cause mortality. The index state identifies periods of significantly increased risk of death.

Study context

Population
Implantable cardioverter-defibrillator (ICD) patients with the HeartLogic heart failure (HF) monitoring feature activated, 26 centres
Participants
568 patients26 centres
Exposure
IN-alert vs OUT of alert state
Outcome
All-cause mortality
Follow-up
Median 26 months
Methodological detailsmulticentre
  • Multicentre

Main finding

As reported in the abstract

Death
IN-alert vs OUT of alertEstimate (95% CI)P value
Death
IRR 13.72(7.62–25.60)
P < 0.001
Adjusted for age, ischemic cardiomyopathy, kidney disease, AF
HR 9.18(5.27–15.99)
P < 0.001
Deaths during follow-up
55

Observational data: associations, not effects.

Further findings

Alerts · median follow-up 26 months

Alerts recorded
1200
Patients with alerts
370 (65%)
Time IN-alert, % of total observation
13% (151/1159 years)
Time IN-alert, % of follow-up in patients with alerts
20%

Original publication

Predicting all-cause mortality by means of a multisensor implantable defibrillator algorithm for heart failure monitoring. Heart Rhythm. Published 24 March 2023. doi:10.1016/j.hrthm.2023.03.026

Composed by AI from the published abstract and checked against it. How Briefs are made →

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