Risk of supranormal left ventricular ejection fraction in patients with aortic stenosis.

Background: Cardiovascular events are increasing in patients with supranormal left ventricular ejection fraction (snLVEF). However, the effect of snLVEF in patients with aortic stenosis (AS) remains unclear, especially in patients with moderate AS.

Hypothesis: This study aimed to evaluate the prognosis of mortality and heart failure (HF) in patients with LVEF ≥ 50% and moderate or severe AS.

Clinical value of the fibrosis-4 index in predicting mortality in patients with right ventricular pacing.

Background: The fibrosis-4 (FIB-4) index has attracted attention as a predictive factor for cardiovascular events and mortality in patients with heart disease. However, its clinical value in patients with implanted pacemakers remains unclear.

Methods: This study included patients who underwent pacemaker implantation.

Relationship between left-axis deviation and onset of cardiac adverse events in right ventricular pacing.

Aims: The electrical axis shows alterations during right ventricular pacing (RVP), including a normal axis and left axis deviation; however, it remains unknown if differences in the electrical axis affect the occurrence of cardiac adverse events. The purpose of this study was to determine whether a left axis deviation increases the incidence of adverse cardiac events compared with a normal axis.

Methods: This study analysed 156 patients with RVP.

Investigation of effective invasive blood pressure control methods to prevent acute exacerbation of acute aortic dissection.

Background: Acute aortic dissection is associated with high mortality and increased risk of complications. Acute exacerbations have a relatively high frequency; however, the contributing factors are unclear. Blood pressure (BP) and heart rate control are important factors, but the ideal BP control strategy to prevent acute exacerbations under invasive arterial pressure monitoring remains unclear.