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Original ResearchVolume 13, Issue 1, January 2020

JOURNAL:JACC Cardiovasc Interv. Article Link

Long-Term Outcomes of Biodegradable Versus Second-Generation Durable Polymer Drug-Eluting Stent Implantations for Myocardial Infarction

JC Choe, KS Cha, Korea Acute Myocardial Infarction Registry-National Institutes of Health Investigators et al. Keywords: acute myocardial infarction; biodegradable polymer drug-eluting stent; clinical outcome; second-generation durable polymer drug-eluting stent

ABSTRACT

OBJECTIVES - This study sought to compare outcomes between biodegradable polymer drug-eluting stent (BP-DES) and second-generation durable polymer drug-eluting stent (DP-DES) implantations for acute myocardial infarction (MI) using a nationwide dataset.

 

BACKGROUND - Data regarding outcomes of BP-DES versus second-generation DP-DES are inconclusive.

 

METHODS - Among 13,104 patients with acute MI in a nationwide registry who underwent percutaneous coronary intervention (November 2011 to December 2015), BP-DES and second-generation DP-DES were implanted in 2,261 (21.7%) and 8,182 patients (78.3%), respectively. Major adverse cardiac events (MACE) (all-cause death, recurrent MI, or any revascularization) were compared in multivariable Cox regression, propensity score (PS) matched, and underwent PS-adjusted analyses.

 

RESULTS - MACE occurred in 1,492 (14.3%) patients during a median 723-day follow-up. MACE were less frequent with BP-DES implantation than with second-generation DP-DES implantation (entire cohort hazard ratio [HR]: 0.845; 95% confidence interval [CI]: 0.740 to 0.965; PS-matched HR: 0.669; 95% CI: 0.550 to 0.814). Risk of all-cause death (entire cohort HR: 0.831; 95% CI: 0.692 to 0.997; PS-matched HR: 0.752; 95% CI: 0.495 to 0.931), cardiac death (entire cohort HR: 0.685; 95% CI: 0.542 to 0.865; PS-matched HR: 0.613; 95% CI: 0.463 to 0.872), recurrent MI (entire cohort HR: 0.662; 95% CI: 0.466 to 0.941; PS-matched HR: 0.611; 95% CI: 0.427 to 0.898), and heart failure readmission (entire cohort HR: 0.625; 95% CI: 0.447 to 0.875; PS-matched HR: 0.584; 95% CI: 0.385 to 0.887) was less with BP-DES implantation. There were no significant group differences in the incidences of any revascularization, stroke, and definite or probable stent thrombosis.

 

CONCLUSIONS -  In patients with acute MI who underwent percutaneous coronary intervention, BP-DES implantation is associated with improved outcomes compared with second-generation DP-DES implantation.