Cardiac sympathetic nerve activity trends after renal denervation in heart failure with preserved ejection fraction.

This case report describes the application of ultrasound renal denervation (uRDN) using the Paradise System in a patient with heart failure with preserved ejection fraction. Initially, the cardiac sympathetic nerve activity of the patient exhibited a late heart/mediastinum (H/M) ratio of 2.00 and a washout rate of 66.

The Impact of Deep Y Descent on Hemodynamics in Patients With Heart Failure and Preserved Left Ventricular Systolic Function.

Influence of right ventricular diastolic function on the hemodynamics of heart failure (HF). We aimed to clarify the hemodynamic features of deep Y descent in the right atrial pressure waveform in patients with HF and preserved left ventricular systolic function. In total, 114 consecutive inpatients with HF who had preserved left ventricular systolic function (left ventricular ejection fraction ≥ 50%) and right heart catheterization were retrospectively enrolled in this study.

Early Detection of Worsening Heart Failure in Patients at Home Using a New Telemonitoring System of Respiratory Stability.

Background: Early detection of worsening heart failure (HF) with a telemonitoring system crucially depends on monitoring parameters. The present study aimed to examine whether a serial follow up of all-night respiratory stability time (RST) built into a telemonitoring system could faithfully reflect ongoing deterioration in HF patients at home and detect early signs of worsening HF in a multicenter, prospective study.

Methods and results: Seventeen subjects with New York Heart Association class II or III were followed up for a mean of 9 months using a newly developed telemonitoring system equipped with non-attached sensor technologies and automatic RST analysis.

Naive Bayes Prediction of the Development of Cardiac Events in Heart Failure With Preserved Ejection Fraction in an Outpatient Clinic - Beyond B-Type Natriuretic Peptide.

Background: The heterogeneity of B-type natriuretic peptide (BNP) levels among individuals with heart failure and preserved ejection fraction (HFpEF) makes predicting the development of cardiac events difficult. This study aimed at creating high-performance Naive Bayes (NB) classifiers, beyond BNP, to predict the development of cardiac events over a 3-year period in individual outpatients with HFpEF.

Methods and results: We retrospectively enrolled 234 outpatients with HFpEF who were followed up for 3 years.

Heterogeneous reduction in regional wall stress after aortic valve replacement for aortic regurgitation: a distinct feature from aortic stenosis.

Geometric changes caused by volume reduction early after aortic valve replacement (AVR) for aortic regurgitation (AR) may not be uniform, resulting in varying regional end-systolic wall stress (ESS). This study compared changes in regional ESS between AR and aortic stenosis (AS) patients in the early phase following AVR. Computer-tomographic left ventricular (LV) angiography was performed for 10 patients with AR and 13 with AS before and three months after AVR.