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S-317 Influence of Additional Ballooning after Stent Implantation in Acute Myocardial Infarction.
( Hanna Joung ),( Ju Yeol Baek ),( Yong Mo Yang ),( Won Ik Lee ),( Seung-woon Rha ),( Byoung Geol Choi ),( Seung Won Jin ),( Byung Ryul Cho ),( Moo Hyun Kim ),( Doo-il Kim ),( Myung-ho Jeong ),( Sang 대한내과학회 2016 대한내과학회 추계학술발표논문집 Vol.2016 No.1
Objective:?Most studies evaluating the benefit and risk of additional ballooning after stent implantation have involved patients with stable angina. However, it may be questionable in the context of patients presenting with acute myocardial infarction (AMI). We evaluated the clinical outcomes of additional ballooning after stent implantation in the patients who underwent AMI. Methods:?A total of 1618 AMI patients in the Korea TRI registry, a retrospective multicenter registry with 4890 patients who underwent percutaneous coronary intervention in 2009 at 12 centers were grouped according to performing additional ballooning (AB; N=814) and non-additional ballooning (Non-AB; N=804) after stent implantation. We compared TLR MACE at 12 month follow up, defined as total mortality, any myocardial infarction (MI), target vessel revascularization (TVR) between two groups.?Results:?After adjustment using 1:1 propensity score stratification, the incidence of TVR MACE at 12 month follow up was similar between both groups. However AB group had higher mortality (5.0% vs 2.4%; hazard ratio 2.15; 95% confidence interval 1.01 to 4.57; p=0.046) and the incidence of myocardial infarction (0.9% vs 1.6%; p=0.363) and TVR (3.8% vs 5.7%; p=0.195) were similar between two groups.?Conclusions: In patients with AMI, clinical result of AB after stent implantation could be similar with it of Non-AB in the 12month TVR MACE. However AB could be associated with significantly higher total mortality at 12 month follow up.