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Risk of Early Adverse Events After Clopidogrel Discontinuation in Patients Undergoing Short-Term Dual Antiplatelet Therapy: An Individual Participant Data Analysis Dual antiplatelet therapy (PEGASUS) vs. dual pathway (COMPASS): a head-to-head in vitro comparison Ticagrelor versus clopidogrel in patients with acute coronary syndromes Higher neutrophil-to-lymphocyte ratio (NLR) increases the risk of suboptimal platelet inhibition and major cardiovascular ischemic events among ACS patients receiving dual antiplatelet therapy with ticagrelor Stopping or continuing clopidogrel 12 months after drug-eluting stent placement: the OPTIDUAL randomized trial 'Ticagrelor alone vs. dual antiplatelet therapy from 1 month after drug-eluting coronary stenting among patients with STEMI': a post hoc analysis of the randomized GLOBAL LEADERS trial Ticagrelor versus clopidogrel in elective percutaneous coronary intervention (ALPHEUS): a randomised, open-label, phase 3b trial Second-generation drug-eluting stent implantation followed by 6- versus 12-month dual antiplatelet therapy: the SECURITY randomized clinical trial Effect of Ticagrelor Monotherapy vs Ticagrelor With Aspirin on Major Bleeding and Cardiovascular Events in Patients With Acute Coronary Syndrome: The TICO Randomized Clinical Trial Six-month versus 12-month dual antiplatelet therapy after implantation of drug-eluting stents: the Efficacy of Xience/Promus Versus Cypher to Reduce Late Loss After Stenting (EXCELLENT) randomized, multicenter study

Clinical Trial2010 Nov;340(5):356-9.

JOURNAL:Am J Med Sci. Article Link

Respiratory syncytial virus infection and risk of acute myocardial infarction

Guan XR, Jiang LX, Ma XH et al. Keywords: Respiratory syncytial virus, Infection, Acute myocardial infarction

ABSTRACT


INTRODUCTION - Increasing evidences have shown that pathogens may promote atherosclerosis and trigger acute myocardial infarction (AMI). There is no report on the association between respiratory syncytial virus (RSV) infection and AMI. The case-control study was used to assess the association of previous RSV infection and acute myocardial infarction.


METHODS - AMI cases and non-AMI controls were recruited from patients at a large teaching hospital in Harbin, China, during October 1, 2005, to March 31, 2006, and October 1, 2006, to March 31, 2007. Questionnaire survey was conducted to collect information on demographic characteristics and heart disease risk factors. Fasting blood sample was obtained to measure immunoglobulin G antibodies to RSV, Cytomegalovirus, herpes simplex virus type-1 and type-2, adenovirus, Rubella virus, Chlamydia pneumoniae and Helicobacter pylori and to measure the level of cholesterol, fasting serum glucose, triglycerides and high-sensitivity C-reactive protein.

RESULTS - AMI group had more smokers than controls (56.9% versus 18.0%) and were more likely to have positive immunoglobulin G antibodies to RSV (OR, 6.2; 95% CI, 3.5-10.7; P < 0.001). After adjustment for potential confounding variables, the association between RSV and AMI remained (adjusted odds ratio, 11.1; 95% confidence interval, 3.3-29.5).

CONCLUSIONS - Our study supported the hypothesis that the previous RSV infection was associated with AMI. This indicates that prevention and proper treatment of RSV infection are of great clinical importance for the reduction of AMI risk.