Publications by authors named "H Nishina"
Background: Prosthesis-patient mismatch (PPM) after transcatheter aortic valve replacement (TAVR) is of greater concern in Asians, considering their relatively smaller annular sizes compared with Westerners. However, the prognostic significance of PPM in Asian populations has not been demonstrated.
Objectives: This study aimed to elucidate the prognostic value of PPM after TAVR in Asian patients.
Article Synopsis
- - The study compares the hemodynamic performance and clinical outcomes of self-expandable valves (SEV) and balloon-expandable valves (BEV) in patients with small aortic annulus (SAA) undergoing transcatheter aortic valve replacement (TAVR).
- - Results showed that SEV offered better hemodynamics, with a higher rate of severe prosthesis-patient mismatch and a greater mean pressure gradient in patients receiving BEV, while BEV had lower incidences of paravalvular leakage and new permanent pacemaker implantation.
- - Overall, both valve types had similar device success rates, indicating that SEV is superior in hemodynamic outcomes but BEV has advantages in reducing certain complications. *
Background: The Direct Oral Anticoagulant (DOAC) Score can predict bleeding risk in patients with atrial fibrillation taking DOACs; however, it lacks external validation. Therefore, this study aimed to assess the association between the DOAC Score and bleeding events in patients with atrial fibrillation who underwent transcatheter aortic valve replacement.
Methods And Results: This retrospective multicenter cohort study included patients with atrial fibrillation who underwent transcatheter aortic valve replacement, as registered in a Japanese multicenter registry.
Data concerning the clinical effect of the latest-generation self-expandable transcatheter heart valve (Evolut FX) remain limited. We aimed to assess the in-hospital outcomes of 3 bioprosthetic valves (Evolut EPO, PRO+, and FX). We analyzed data from a Japanese multicenter registry involving 634 consecutive patients who underwent transcatheter aortic valve replacement with Evolut FX up until October 2023.
View Article and Find Full Text PDFArticle Synopsis
- East Asians typically have smaller aortic valve complexes compared to Western populations, and there’s limited data on TAVI outcomes in Asian patients with large annuli.
- This study analyzes TAVI results in Asian patients, comparing outcomes between balloon-expandable valves (BEVs) and self-expandable valves (SEVs) by examining data from the OCEAN-TAVI registry.
- Findings show no significant differences in 3-year all-cause mortality, heart failure rehospitalization rates, or valve function after 2 years between BEV and SEV groups, although SEVs had higher rates of paravalvular leakage and pacemaker implantation.