Coronary disease & ACSCohort study
Defective biological activities of high-density lipoprotein identify patients at highest risk of recurrent cardiovascular event
- Prospective cohort study
Authors' conclusion
Impaired CEC and elevated IL-1β synergistically increase the residual cardiovascular risk in MI patients, which could be explained by reduced HDL efflux capacity and enhanced HDL pro-inflammatory activity.
Study context
- Population
- Patients with acute STEMI undergoing primary PCI
- Participants
- 2,012 patients
- Exposure
- Low cholesterol efflux capacity (CEC)/high IL-1ß vs high CEC/low IL-1ß
- Outcome
- Recurrent MACE
- Follow-up
- 1 year
Main finding
As reported in the abstract
- Patients with major adverse cardiovascular events (MACE) had significantly lower serum CEC and higher IL-1ß vs those without; both confirmed after multivariate analysis
- Low CEC/high IL-1ß had the highest risk of recurrent MACE, additive prognostic value regardless of other clinical or biological factors
Observational data: associations, not effects.
Further findings
HDL biological functions in the two extreme subgroups
- Very high-risk subgroup: reduced HDL efflux capacity, defective ABCA1 and SR-BI, enhanced pro-inflammatory activity
- 20 patients
Original publication
Defective biological activities of high-density lipoprotein identify patients at highest risk of recurrent cardiovascular event. Eur J Prev Cardiol. Published 7 November 2024. doi:10.1093/eurjpc/zwae356
Summarised from the published abstract; every number is checked against it