Plasma Lipoprotein Lipase Is Associated with Risk of Future Major Adverse Cardiovascular Events in Patients Following Carotid Endarterectomy

Joost M. Mekke, Maarten C. Verwer, Erik S.G. Stroes, Jeffrey Kroon, Leo Timmers, Gerard Pasterkamp, Gert J. de Borst, Sander W. van der Laan*, Dominique P.V. de Kleijn

*Corresponding author for this work

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Abstract

Introduction: Carotid plaque intraplaque haemorrhage (IPH) is associated with future cardiovascular events. It was hypothesised that plasma proteins associated with carotid plaque IPH are also likely to be associated with major adverse cardiovascular events (MACE) after carotid endarterectomy (CEA). Methods: In pre-operative blood samples from patients undergoing CEA within the Athero-Express biobank, proteins involved in cardiovascular disease were measured using three OLINK proteomics immunoassays. The association between proteins and IPH was analysed using logistic regression analyses. Subsequently, the association between the IPH associated plasma proteins and the three year post-operative risk of MACE (including stroke, myocardial infarction, or cardiovascular death) was analysed. Results: Within the three year follow up, 130 patients (18.9%) of 688 symptomatic and asymptomatic patients undergoing CEA developed MACE. Six of 276 plasma proteins were found to be significantly associated with IPH, from which only lipoprotein lipase (LPL) was associated with the post-operative risk of MACE undergoing CEA. Within the 30 day peri-operative period, high plasma LPL was independently associated with an increased risk of MACE (adjusted hazard ratio [HR] per standard deviation [SD] 1.60, 1.10 – 2.30), p = .014). From 30 days to three years, however, high LPL was associated with a lower risk of MACE (adjusted HR per SD 0.80, 0.65 – 0.99, p= .036). Conclusion: High LPL concentrations were found to be associated with a higher risk of MACE in the first 30 post-operative days but with a lower risk MACE between 30 days and three years, meaning that LPL has different hazards at different time points.

Original languageEnglish
Pages (from-to)700-709
Number of pages10
JournalEuropean Journal of Vascular and Endovascular Surgery
Volume65
Issue number5
DOIs
Publication statusPublished - May 2023

Keywords

  • Atherosclerosis
  • Carotid endarterectomy
  • Lipoprotein lipase
  • MACE
  • Proteomics

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