(1) Background and Objectives: Atrial fibrillation (AF) is the most common cardiac arrhythmia and is associated with increased morbidity and mortality both in the general population and heart failure patients. Inflammation may promote the initiation, maintenance and perpetuation of AF, but the impact of inflammatory molecular signaling on the association between AF and heart failure remains elusive. (2) Materials and Methods: In 111 patients with chronic stable heart failure, baseline values of conventional (IL-6 and hsCRP) and selected novel inflammatory biomarkers (IL-10, IL-6/IL-10 ratio, orosomucoid and endocan) were determined. Inflammatory biomarkers were compared with respect to the presenting cardiac rhythm. (3) Results: Patients aged below 75 years with AF had significantly higher values of IL-6 and IL-6/IL-10 ratio; IL-6 levels were a significant predictor of AF in both univariate (OR 1.175; 95%CI 1.013–1.363; p = 0.034) and multivariate logistic regression analysis when accounting for other inflammatory biomarkers (OR 1.327; 95% CI 1.068–1.650; p = 0.011). Conversely, there was no association between other novel inflammatory biomarkers and AF. (4) Conclusions: IL-6 levels and the IL-6/IL-10 ratio are associated with AF in patients with chronic stable heart failure under the age of 75 years, suggesting that inflammatory molecular signaling may play a role in the development of AF in the heart failure population.

Background and Objectives: Transcatheter heart valve (THV) selection is challenging as self-expanding valves (SEVs) are associated with lower post-procedural mean aortic gradients, while balloon-expandable valves (BEVs) have lower rates of paravalvular leak (PVL) and permanent pacemaker implantation (PPI). We aimed to compare the 30-day and 1-year outcomes following Myval BEV (Meril Life Sciences, Vapi, Gujarat, India) and intra-annular Portico SEV (Abbott, St. Paul, MN, USA) implantation. Materials and Methods: We retrospectively analyzed the data from the all-comer TAVI registry of the University Medical Centre Ljubljana, Slovenia, from October 2017 to August 2023. Safety and efficacy outcomes following Myval BEV and Portico SEV implantation were compared overall and after propensity score matching. Results: Of the total 1152 THVs implanted, 97 patients (8%) received a Myval BEV and 47 (4%) a Portico SEV. After propensity score matching, there were no significant differences between the two patient cohorts regarding 30-day (Myval 0.0% vs. Portico 2.9%, p = 1.000) and 1-year mortality (Myval 0.0% vs. Portico 5.9%, p = 0.492). Likewise, the rates of new PPI, device failure (mean aortic gradient and more than mild PVL), and periprocedural in-hospital complications were comparable between the two groups. Conclusions: In this retrospective analysis of two intra-annular THVs, the Myval BEV was associated with comparable short- and mid-term outcomes as the Portico SEV.

Background and Objectives: Transcatheter aortic valve implantation is associated with a higher risk for elevated trans-prosthetic gradients and prosthesis-patient mismatch in patients with a small aortic annulus. We aimed to assess the short-term hemodynamic performance of self-expanding transcatheter aortic valves with an intra-annular leaflet position in patients with small aortic anatomies. Materials and Methods: Consecutive patients with small aortic annuli (annular area < 430 mm²), who underwent transcatheter aortic valve implantation with a self-expanding Portico or Navitor (Abbott Medical, St. Paul, MN, USA) transcatheter aortic valve between October 2017 and August 2024 at the University Medical Centre Ljubljana, Slovenia, were analyzed. The main endpoints were the post-procedural mean trans-prosthetic gradient, the presence of moderate or severe prosthesis-patient mismatch or paravalvular regurgitation. Results: Overall, 37 patients were included in the study (29 patients with a native aortic valve and 8 patients undergoing valve-in-valve transcatheter aortic valve implantation). The mean age was 81.6 ± 4.3 years, 32 patients (86.5%) were female. The median annular perimeter was 70.8 mm (interquartile range 67.3–74.1 mm) and the median annular area was 379 mm² (interquartile range 355–412 mm²). The post-procedural mean trans-prosthetic gradient was 9.0 ± 3.5 mmHg, with no cases with a mean gradient > 20 mmHg. Moderate and severe prosthesis-patient mismatch was observed in 21.2% and 3.0% of patients, respectively. Mild paravalvular regurgitation was noted in 44.1% of patients, there were no cases of moderate or severe paravalvular regurgitation. One patient (3.0%) had moderate valvular regurgitation. Conclusions: Self-expanding transcatheter aortic valves with an intra-annular leaflet position are associated with favorable hemodynamic performance in patients with a small aortic annulus.