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  • Title: One-year clinical impact of cardiac arrest in patients with first onset acute ST-segment elevation myocardial infarction.
    Author: Lee KH, Jeong MH, YoungkeunAhn, Kim SS, Rhew SH, Jeong YW, Jang SY, Cho JY, Jeong HC, Park KH, Yoon NS, Sim DS, Yoon HJ, Kim KH, Hong YJ, Park HW, Kim JH, Cho JG, Park JC, Cho MC, Kim CJ, Kim YJ, KAMIR (Korea Acute Myocardial Infarction Registry) Investigators.
    Journal: Int J Cardiol; 2014 Jul 15; 175(1):147-53. PubMed ID: 24856807.
    Abstract:
    BACKGROUND: Cardiac arrest complicating acute ST elevation myocardial infarction (STEMI) is known to be associated with increased in-hospital mortality. However, little is known about the long-term outcomes after cardiac arrest complicating first onset STEMI in contemporary percutaneous coronary intervention (PCI) era. METHODS: We analyzed 7942 consecutive patients who were diagnosed with STEMI and had no previous history of MI. They were divided into two groups according to the presence of cardiac arrest (group I, patients with cardiac arrest; n=481, group II, patients without cardiac arrest; n=7641). RESULTS: In a stepwise multivariate model, previous history of chronic kidney disease, high serum level of glucose and low high density lipoprotein-cholesterol was an independent predictor of cardiac arrest complicating STEMI. Group I had significantly higher in-hospital mortality (adjusted hazard ratio [HR] 3.06, 95% confidence interval [CI] 2.08-4.51, p<0.001) and 30-day mortality after hospital discharge (adjusted HR 2.92, 95% CI 1.86-4.58, log-rank p<0.001). However, there was no significant increase in mortality beyond 30 days (6-month, adjusted HR 1.46, 95% CI 0.45-4.77, log rank p=0.382; 1-year, adjusted HR 1.84, 95% CI 0.83-4.05, log-rank p=0.107). Also, there were no significant differences in 6-month and 1-year major adverse cardiac events in 30-day survivors. Performing PCI was associated with decreased 12-month mortality in 30-day survivors. CONCLUSIONS: Although patients with cardiac arrest complicating first onset STEMI had higher in-hospital and 30-day mortality after hospital discharge, cardiac arrest itself did not have any residual impact on mortality as well as clinical outcomes.
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