International journal of cardiology
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To assess the relationship between heart rate response and exercise tolerance in adults with systemic right ventricle (sRV) after atrial switch repair for Transposition of the Great Artery (TGA) in addition to other physiological parameters. ⋯ Exercise limitation is related to the inability to increase cardiac output during exercise and is notably due to the degree of chronotropic incompetence.
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Admission blood glucose (BG) has demonstrated contradictory association with 30-day mortality in acute heart failure (AHF) hospitalization. To explore these contradictory findings, we aimed to determine if admission BG reflects an acute change from chronic glucose control and investigate the association between the admission and chronic BG change (ΔBG) with 30-day mortality in AHF. ⋯ Admission BG predominantly reflects chronic glycemic status. Increased change in admission from chronic BG was associated with increased 30-day mortality.
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The recent PARTNER S3i trial compared transcatheter aortic valve implantation (TAVI) using the third-generation SAPIEN 3 device to surgical aortic valve replacement (SAVR) in intermediate-risk patients with severe symptomatic aortic stenosis. Using data from PARTNER S3i, we performed a contemporary cost-effectiveness analysis of current-generation TAVI versus SAVR from the Australian healthcare system perspective. ⋯ TAVI is likely to be highly cost-effective compared to SAVR in intermediate-risk patients with severe aortic stenosis.
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The myocardial contraction fraction (MCF: stroke volume to myocardial volume) is a volumetric measure of left ventricular myocardial shortening. We examined the relationship of MCF, measured by cardiac magnetic resonance imaging (cMRI), to incident cardiovascular (CV) events within the Multi-Ethnic Study of Atherosclerosis (MESA). ⋯ MCF is a novel measure that can be measured using cMRI. In this multi-ethnic cohort, MCF is a measure that can be used to predict incident CVD events.