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Int J Angiol. 2015 Jun;24(2):127-32. doi: 10.1055/s-0035-1544178.

Blood Leukocyte Count on Admission Predicts Cardiovascular Events in Patients with Acute Non-ST Elevation Myocardial Infarction.

The International journal of angiology : official publication of the International College of Angiology, Inc

Surya Dharma, Rosmarini Hapsari, Bambang B Siswanto, Arnoud van der Laarse, J Wouter Jukema

Affiliations

  1. Department of Cardiology and Vascular Medicine, Faculty of Medicine, University of Indonesia, Jakarta, Indonesia.
  2. Department of Cardiology and Clinical Chemistry and Laboratory Medicine, Leiden University Medical Center, Leiden, The Netherlands.
  3. Department of Cardiology, Leiden University Medical Center, Leiden, the Netherlands.

PMID: 26060384 PMCID: PMC4452600 DOI: 10.1055/s-0035-1544178

Abstract

We aim to test the hypothesis that blood leukocyte count adds prognostic information in patients with acute non-ST-elevation myocardial infarction (non-STEMI). A total of 585 patients with acute non-STEMI (thrombolysis in myocardial infarction risk score ≥ 3) were enrolled in this cohort retrospective study. Blood leukocyte count was measured immediately after admission in the emergency department. The composite of death, reinfarction, urgent revascularization, and stroke during hospitalization were defined as the primary end point of the study. The mean age of the patients was 61 ± 9.6 years and most of them were male (79%). Using multivariate Cox regression analysis involving seven variables (history of smoking, hypertension, heart rate > 100 beats/minute, serum creatinine level > 1.5 mg/dL, blood leukocyte count > 11,000/µL, use of β-blocker, and use of angiotensin-converting enzyme inhibitor), leukocyte count > 11,000/µL demonstrated to be a strong predictor of the primary end point (hazard ratio = 3.028; 95% confidence interval = 1.69-5.40, p < 0.001). The high blood leukocyte count on admission is an independent predictor of cardiovascular events in patients with acute non-STEMI.

Keywords: acute non-STEMI; cardiovascular event; leukocyte count; predictor

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