• Journal of cardiology · Oct 2018

    Influence of obesity and metabolic syndrome on clinical outcomes of ST-segment elevation myocardial infarction in men undergoing primary percutaneous coronary intervention.

    • Seung Hun Lee, Myung Ho Jeong, Ju Han Kim, Min Chul Kim, Doo Sun Sim, Young Joon Hong, Youngkeun Ahn, Shung Chull Chae, In Whan Seong, Jong Sun Park, Jei Keon Chae, Seung Ho Hur, Kwang-Soo Cha, Hyo-Soo Kim, Hyeon Cheol Gwon, Ki Bae Seung, Seung Woon Rha, and other Korea Acute Myocardial Infarction Registry (KAMIR) Investigators.
    • Department of Cardiology, Chonnam National University Hospital, Gwangju, Republic of Korea.
    • J Cardiol. 2018 Oct 1; 72 (4): 328-334.

    BackgroundThe correlation between obesity and metabolic syndrome (MetS) and its impact on cardiovascular disease remains unclear. This study aims to investigate the impact of metabolic status and obesity on clinical outcomes of male patients with ST-segment elevation myocardial infarction (STEMI).MethodsData from the Korea Acute Myocardial Infarction Registry-National Institutes of Health registry were used to evaluate the impact of obesity and MetS on patients undergoing primary percutaneous coronary intervention (PPCI) from November 2005 to November 2015. Patients were grouped according to the presence or absence of obesity and MetS ('obese-/MetS-', 'obese-/MetS+', 'obese+/MetS-', or 'obese+/MetS+', respectively). All-cause death and major adverse cardiac events (MACE) were recorded during 12 months of follow-up.ResultsA total of 14,357 patients were included. Multivariate analysis showed that the presence of MetS was an independent risk factor for all-cause death (HR 2.08, 95% CI 1.30-3.31, p=0.002) and cardiovascular death (HR 2.44, 95% CI 1.33-4.46, p=0.004) at 12 months among normal weight patients. The protective effect of obesity was observed, compared with the obese-/MetS+ group, in terms of all-cause death (HR 0.50, 95% CI 0.31-0.81, p=0.005) and cardiovascular death (HR 0.52, 95% CI 0.28-0.96, p=0.038; vs. total obese individuals), but it might have disappeared compared with the obese-/MetS- group. The rate of MACE did not differ significantly according to category by obesity and MetS.ConclusionsThe obesity paradox has not been observed between obese and normal weight patients without MetS. Risk stratification on the basis of the presence or absence of MetS is not a clinically useful indicator of outcome in obese male patients with STEMI after PPCI.Copyright © 2018 Japanese College of Cardiology. Published by Elsevier Ltd. All rights reserved.

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