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Cardiovascular Diabetology
Published in: Cardiovascular Diabetology 1/2019

Open Access 01-12-2019 | Clopidogrel | Original investigation

Incremental role of glycaemic variability over HbA1c in identifying type 2 diabetic patients with high platelet reactivity undergoing percutaneous coronary intervention

Authors: Annunziata Nusca, Dario Tuccinardi, Claudio Proscia, Rosetta Melfi, Silvia Manfrini, Antonio Nicolucci, Antonio Ceriello, Paolo Pozzilli, Gian Paolo Ussia, Francesco Grigioni, Germano Di Sciascio

Published in: Cardiovascular Diabetology | Issue 1/2019

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Abstract

Background

Diabetic patients with on-treatment high platelet reactivity (HPR) show an increased risk of thrombotic events. Whether measuring glycated haemoglobin (HbA1c) levels and/or glycaemic variability (GV) may help identifying diabetic patients at higher risk deserving tailored antiplatelet and/or glucose lowering strategies is unknown. We aimed to investigate the relationship between GV, HbA1c levels and platelet reactivity in patients with type 2 diabetes mellitus (DM) undergoing percutaneous coronary intervention (PCI).

Methods

Platelet reactivity was measured in type 2 DM patients using VerifyNow P2Y12 assay. HPR was defined as P2Y12 Reaction Unit (PRU) > 240. GV was expressed through mean amplitude of glycaemic excursions (MAGE) and coefficient of variance (CV) by using the iPro™ continuous glucose recorder.

Results

Thirty-five patients (age 70 ± 9 years, 86% male, mean HbA1c 7.2 ± 1.0%) on clopidogrel therapy were enrolled. HbA1c was independently associated with HPR (OR 7.25, 95% CI 1.55–33.86, p = 0.012). Furthermore, when factored into the model, GV indexes provided independent (OR 1.094, 95% CI 1.007–1.188, p < 0.034) and additional (p < 0.001) diagnostic significance in identifying diabetic patients with HPR.

Conclusions

Glyco-metabolic state significantly correlates with HPR in well-controlled type 2 DM patients on clopidogrel therapy. HbA1c identifies patients at higher thrombotic risk but the highest diagnostic accuracy is achieved by combining GV and HbA1c. Whether individualized antithrombotic and glucose-lowering therapies based on the assessment of these parameters may reduce the incidence of thrombotic events in patients undergoing PCI should be further investigated.
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Metadata
Title
Incremental role of glycaemic variability over HbA1c in identifying type 2 diabetic patients with high platelet reactivity undergoing percutaneous coronary intervention
Authors
Annunziata Nusca
Dario Tuccinardi
Claudio Proscia
Rosetta Melfi
Silvia Manfrini
Antonio Nicolucci
Antonio Ceriello
Paolo Pozzilli
Gian Paolo Ussia
Francesco Grigioni
Germano Di Sciascio
Publication date
01-12-2019
Publisher
BioMed Central
Keyword
Clopidogrel
Published in
Cardiovascular Diabetology / Issue 1/2019
Electronic ISSN: 1475-2840
DOI
https://doi.org/10.1186/s12933-019-0952-8

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