Heart failure & cardiomyopathies

Triple cardiovascular disease detection with an artificial intelligence-enabled stethoscope (TRICORDER) in the UK: a cluster-randomised controlled implementation trial

LancetPublished Cluster-randomised controlled implementation trial

Primary result · New HF diagnosis (per 1000 patient-years)Result — go to the resultIncidence rate ratio 0.94 95% CI 0.86–1.02

Authors' conclusion

Implementation of an AI stethoscope in routine primary care did not significantly increase detection of heart failure or increase community-based diagnosis after 12 months of implementation.

Study context

Population
UK primary care practices
Participants
205 practices
Comparison
Artificial intelligence (AI)-stethoscope implementation vs routine care
  • Interventionn = 96 practices [701,933 registered patients]
  • Controln = 109 practices [851,242 registered patients]reference
Primary endpoint
Incidence of any newly coded HF diagnosis (all subtypes) per 1000 patient-years (IRR); coprimary: HF detection by place of diagnosis (community vs hospital admission)
Methodological detailspragmatic, open-label (masking not feasible)
  • Pragmatic
  • Open-label (masking not feasible)

Primary result

New HF diagnosis (per 1000 patient-years)

Incidence rate ratio

0.94

95% CI 0.86–1.02

Between groups
IRR 0.94 (95% CI 0.86–1.02)

Per 1000 patient-years, as printed

As reported in the abstract

No difference in community-based or hospital-based diagnoses
P > 0.05

Secondary outcomes

OutcomeInterventionControl
AI-stethoscope use12 725 patient examinations
Clinical users972Not reported in the abstractControl: not reported in the abstract

Original publication

Triple cardiovascular disease detection with an artificial intelligence-enabled stethoscope (TRICORDER) in the UK: a cluster-randomised controlled implementation trial. Lancet. Published 28 January 2026. doi:10.1016/s0140-6736(25)02156-7

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

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