Novel role of platelet reactivity in adverse left ventricular remodelling after ST-segment elevation myocardial infarction: The REMODELING Trial

Yongwhi Park; Udaya S. Tantry; Jin-Sin Koh; Jong-Hwa Ahn; Min Gyu Kang; Kye Hwan Kim; Jeong Yoon Jang; Hyun Woong Park; Jeong-Rang Park; Seok-Jae Hwang; Ki-Soo Park; Choong Hwan Kwak; Jin-Yong Hwang; Paul A. Gurbel; Young-Hoon Jeong

doi:10.1160/TH16-10-0744

Thrombosis and Haemostasis, Table of Contents

Thromb Haemost 2017; 117(05): 911-922
DOI: 10.1160/TH16-10-0744

Cellular Haemostasis and Platelets

Schattauer GmbH

Novel role of platelet reactivity in adverse left ventricular remodelling after ST-segment elevation myocardial infarction: The REMODELING Trial

Authors

Yongwhi Park

¹Department of Internal Medicine, Gyeongsang National University School of Medicine and Cardiovascular Center, Gyeongsang National University Changwon Hospital, Changwon, Republic of Korea
Udaya S. Tantry

²Inova Center for Thrombosis Research and Drug Development, Inova Heart and Vascular Institute, Fairfax, Virginia, USA
Jin-Sin Koh

³Department of Internal Medicine, Gyeongsang National University School of Medicine and Gyeongsang National University Hospital, Jinju, Republic of Korea
Jong-Hwa Ahn

¹Department of Internal Medicine, Gyeongsang National University School of Medicine and Cardiovascular Center, Gyeongsang National University Changwon Hospital, Changwon, Republic of Korea
Min Gyu Kang

³Department of Internal Medicine, Gyeongsang National University School of Medicine and Gyeongsang National University Hospital, Jinju, Republic of Korea
Kye Hwan Kim

³Department of Internal Medicine, Gyeongsang National University School of Medicine and Gyeongsang National University Hospital, Jinju, Republic of Korea
Jeong Yoon Jang

¹Department of Internal Medicine, Gyeongsang National University School of Medicine and Cardiovascular Center, Gyeongsang National University Changwon Hospital, Changwon, Republic of Korea
Hyun Woong Park

³Department of Internal Medicine, Gyeongsang National University School of Medicine and Gyeongsang National University Hospital, Jinju, Republic of Korea
Jeong-Rang Park

³Department of Internal Medicine, Gyeongsang National University School of Medicine and Gyeongsang National University Hospital, Jinju, Republic of Korea
Seok-Jae Hwang

³Department of Internal Medicine, Gyeongsang National University School of Medicine and Gyeongsang National University Hospital, Jinju, Republic of Korea
Ki-Soo Park

⁴Department of Preventive Medicine, Gyeongsang National University School of Medicine, Jinju, Republic of Korea
Choong Hwan Kwak

¹Department of Internal Medicine, Gyeongsang National University School of Medicine and Cardiovascular Center, Gyeongsang National University Changwon Hospital, Changwon, Republic of Korea
Jin-Yong Hwang

³Department of Internal Medicine, Gyeongsang National University School of Medicine and Gyeongsang National University Hospital, Jinju, Republic of Korea
Paul A. Gurbel

²Inova Center for Thrombosis Research and Drug Development, Inova Heart and Vascular Institute, Fairfax, Virginia, USA
Young-Hoon Jeong

¹Department of Internal Medicine, Gyeongsang National University School of Medicine and Cardiovascular Center, Gyeongsang National University Changwon Hospital, Changwon, Republic of Korea

⁵Institute of the Health Sciences, Gyeongsang National University, Jinju, Republic of Korea

Abstract

Summary

The role of platelet-leukocyte interaction in the infarct myocardium still remains unveiled. We aimed to determine the linkage of platelet activation to post-infarct left ventricular remodelling (LVR) process. REMODELING was a prospective, observational, cohort trial including patients (n = 150) with ST-segment elevation myocardial infarction (STEMI) undergoing primary percutaneous coronary intervention. Patients were given aspirin plus clopidogrel therapy (600 mg loading and 75 mg daily). Platelet reactivity (PRU: P2Y12 Reaction Units) was assessed with VerifyNow P2Y12 assay on admission. Transthoracic echocardiography was performed on admission and at one-month follow-up. The primary endpoint was the incidence of LVR according to PRU-based quartile distribution. LVR was defined as a relative ≥ 20 % increase in LV end-diastolic volume (LVEDV) between measurements. Adverse LVR was observed in 36 patients (24.0 %). According to PRU quartile, LVR rate was 10.8 % in the first, 23.1 % in the second, 27.0 % in the third, and 35.1 % in the fourth (p = 0.015): the optimal cut-off of PRU was ≥ 248 (area under curve: 0.643; 95 % confidence interval: 0.543 to 0.744; p = 0.010). LVR rate also increased proportionally according to the level of high sensitivity-C reactive protein (hs-CRP) (p = 0.012). In multivariate analysis, the combination of PRU (≥ 248) and hs-CRP (≥ 1.4 mg/l) significantly increased the predictive value for LVR occurrence by about 21-fold. In conclusion, enhanced levels of platelet activation and inflammation determined the incidence of adverse LVR after STEMI. Combining the measurements of these risk factors increased risk discrimination of LVR. The role of intensified antiplatelet or anti-inflammatory therapy in post-infarct LVR process deserves further study.

Keywords

Myocardial infarction - LV remodelling - platelet reactivity - inflammation

Full Text

References

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