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Clinical TrialAvailable online 12 May 2017

JOURNAL：Cardiovasc Revasc Med. Article Link

Correlation and prognostic role of neutrophil to lymphocyte ratio and SYNTAX score in patients with acute myocardial infarction treated with percutaneous coronary intervention: A six-year experience

Zuin M, Rigatelli G, Roncon L et al. Keywords: Cardiovascular mortality; Myocardial infarction; Neutrophils-lymphocyte ratio

ABSTRACT


BACKGROUND/PURPOSE - The neutrophil/lymphocyte ratio (NLR) has been proposed as a prognostic marker in acute myocardial infarction (AMI). The aim of our study is to demonstrates the correlation between SYNTAX score (SXs) and NLR and its association with 1-year cardiovascular (CV) mortality in patients with ST-segment elevation myocardial infarction (STEMI) or non-ST-segment elevation myocardial infarction (NSTEMI) treated with percutaneous coronary intervention (PCI).


METHODS/MATERIALS - Over 6 consecutive years, (1st January 2010 and 1st January 2016) 6560 patients (4841 males and 1719 females, mean age 64.36±11.77years) were admitted for AMI and treated with PCI within 24-h. The study population was divided into tertiles based on the SXs.


RESULTS - Both in STEMI and NSTEMI groups, neutrophils and the SXs were significantly higher (p<0.0001) in upper versus lower among NLR tertiles and a significant correlation was found between the NLR and SXs (r=0.617, p<0.0001 and r=0.252, p<0.0001 for STEMI and NSTEMI groups, respectively). One-year CV mortality significantly raised up among the NLR tertiles in both STEMI and NSTEMI patients (p<0.0001). Multivariate analysis revealed that, after adjusting SXs and PAD, an NLR (≥3.9 and ≥2.7 for STEMI and NTEMI patients, respectively) was an independent significant predictor of 1-year CV mortality (OR 2.85, 95% CI 1.54-5.26, p=0.001 and OR 2.57, 95% CI 1.62-4.07, p<0.0001 for STEMI and NSTEMI respectively.) CONCLUSIONS: NLR significantly correlates with SXs and is associated with 1-year CV mortality in patients with STEMI or NSTEMI treated with PCI within 24-h.

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