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KMID : 1036020180070010050
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지질.동맥경화학회지
2018 Volume.7 No. 1 p.50 ~ p.61
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Early Valuable Risk Stratification with Hemoglobin Level and Neutrophil to Lymphocyte Ratio in Patients with Non-ST-Elevation Myocardial Infarction Having an Early Invasive Strategy
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Jun Seung-Jin
Jeong Myung-Ho
Cho Kyung-Hoon
Ahn Young-Keun
Kim Ju-Han
Cho Jeong-Gwan
Chae Shung-Chull
Kim Young-Jo
Seong In-Whan
Chae Jei-Keon
Kim Hyo-Soo
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Abstract
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Objective: The complete blood count is the most widely available laboratory data in the early in-hospital period after acute myocardial infarction. We assessed the clinical utility of the combined use of hemoglobin (Hb) level and neutrophil to lymphocyte ratio (N/L) for early risk stratification in patients with non-ST-elevation myocardial infarction (STEMI).
Methods: We analyzed 6,157 consecutive patients with non-STEMI (65±12.4 years, male 69%) were included in the final analysis. Patients were categorized into 3 groups by using the median value of N/L (4.42) and the presence of anemia (Hb <13 mg/dL in men and <12 mg/dL in women): group I, low N/L & no anemia (n=3,170); group II, no group I or III (n=2,168); group III, high N/L & anemia (n=819).
Results: There were significant differences on clinical outcomes during 180-day follow-up among 3 groups. The prognostic discriminatory capacity of the combined use of Hb level and N/L was also significant in high-risk subgroups, such as patients with a renal dysfunction, multivessel coronary disease, low ejection fraction, and even in those having higher mortality risk based on the thrombolysis in myocardial infarction risk score. In a multi-variate logistic regression, after adjusting for multiple covariates, group III had higher incidence of major adverse cardiac events at 180-day (hazard ratio, 2.4; 95% confidence interval, 1.5?4.0;p≤0.001) compared with group I.
Conclusions: The combined use of Hb level and N/L provides valuable timely information for early risk stratification in patients with non-STEMI.
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KEYWORD
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Non-ST-elevated myocardial infarction, Blood cell count, Prognosis, Neutrophils, Lymphocytes
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