EuroIntervention : journal of EuroPCR in collaboration with the Working Group on Interventional Cardiology of the European Society of Cardiology
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Transcatheter aortic valve implantation (TAVI) is an alternative therapeutic option for patients with severe aortic valve stenosis (AS) and elevated surgical risk. Previous studies have suggested that the occurrence of systemic inflammatory response syndrome (SIRS) in patients undergoing TAVI is associated with an unfavourable outcome. We sought to assess the impact of different interventional access routes (transapical [TA] vs. transfemoral [TF]) and valve types (Medtronic CoreValve® [CV] vs. Edwards SAPIEN XT® [ES]) on the incidence of SIRS. In addition, the prognostic value of SIRS was evaluated. ⋯ The occurrence of SIRS in the first 48 hours post procedure is associated with impaired prognosis following TAVI, but is independent from the chosen valve type and access route.
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Arterial plaque rupture and thrombus characterise ST-elevation myocardial infarction (STEMI) and may aggravate delayed arterial healing following durable polymer drug-eluting stent (DP-DES) implantation. Biodegradable polymer (BP) may improve biocompatibility. We compared long-term outcomes in STEMI patients receiving BP-DES vs. durable polymer sirolimus-eluting stents (DP-SES). ⋯ In STEMI, BP-DES demonstrated superior clinical outcomes to DP-SES at four years. Trends towards reduced cardiac death or myocardial infarction and reduced stent thrombosis require corroboration in specifically powered trials.
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Observational Study
Improved endothelial function and decreased levels of endothelium-derived microparticles after transcatheter aortic valve implantation.
Degenerative aortic valve stenosis (AVS) is independently associated with endothelial dysfunction and increased levels of circulating endothelium-derived microparticles (EMPs) as a marker of compromised endothelial integrity. The aim of this study was to investigate whether therapy for severe AVS by transcatheter aortic valve implantation (TAVI) improves endothelial function and decreases EMPs. ⋯ Therapy for AVS by TAVI was associated with improved endothelial function and integrity indicating beneficial effects of TAVI on systemic arterial function.