Heart failure & cardiomyopathies

Prediction of worsening heart failure in hypertrophic cardiomyopathy using plasma proteomics

HeartPublished Prospective cohort study

Authors' conclusion

The present study with comprehensive plasma proteomics profiling demonstrated a high accuracy to predict worsening HF in patients with HCM and identified the Ras-MAPK and related signalling pathways as potential underlying mechanisms.

Study context

Population
Patients with hypertrophic cardiomyopathy (HCM)4,986 proteins profiled
Participants
389 patients
Exposure
Training set vs Test set
  • Training setn = 268
  • Test setn = 121
Outcome
Prediction of worsening HF by an 11-protein plasma proteomics-based random forest model
Methodological detailsmulticentre, external validation
  • Multicentre
  • External validation

Main finding

As reported in the abstract

Worsening HF prediction (11-protein model)
GroupAUC
Test set0.87 (95% CI: 0.76 to 0.98)

Test set

AUC0.87 (95% CI: 0.76 to 0.98)

Observational data: associations, not effects.

Further findings

Pathway analysis: worsening heart failure (HF) vs no worsening HF

Ras-MAPK pathway and related pathways dysregulated in patients who developed worsening HF
False discovery rate (FDR)<0.00001
  • FDR threshold <0.001

Original publication

Prediction of worsening heart failure in hypertrophic cardiomyopathy using plasma proteomics. Heart. Published 14 July 2023. doi:10.1136/heartjnl-2023-322644

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