Publications by authors named "Yoh Masue"
Article Synopsis
- - The Embo-Abl study aims to compare the rates of cerebral embolisms following catheter ablation (CA) for atrial fibrillation (AF) using cryoballoon (CB) versus radiofrequency (RF) techniques, as both are commonly used therapies with notable risks.
- - The study will involve 230 patients from various centers in Japan and will use MRI to detect clinically silent cerebral embolisms (SCEs) within 1-3 days post-ablation, with participants randomly assigned to either CB or RF groups.
- - This research is significant as it is the first of its kind to prospectively evaluate and compare the incidence of cerebral embolisms related to these two different ablation methods for AF. *
Background: The utility of late potentials on signal-averaged electrocardiography (SAECG) for risk stratification in patients with Brugada syndrome (BrS) remains controversial. Late potentials on conventional SAECG with Frank leads may be insufficiently sensitive to detect site-specific late potentials in right precordial leads.
Objective: The purpose of this study was to evaluate the utility of site-specific late potentials using a novel unipolar Holter-SAECG system for risk stratification in patients with BrS.
Article Synopsis
- Catheter ablation is a procedure used to treat a heart problem called atrial fibrillation (AF), and it can be riskier for people with heart failure (HF).
- The CRABL-HF study is testing two types of ablation methods, cryoballoon (CB) and radiofrequency (RF), to see which one works better and is safer for patients with HF.
- Researchers will look at how often patients have heart rhythm problems after a year and track other health details to understand the safety of each method.
Background: If the threshold at implant of leadless transcatheter pacemakers (LTPs) is less than 2.0 V, pacing thresholds reportedly decrease significantly by 1 month and maintain an optimal value of less than 1.0 V by 6 months.
View Article and Find Full Text PDFObjective: Angiotensin-converting enzyme (ACE) inhibitors and angiotensin receptor blockers (ARBs) effectively interfere with the sympathetic nerve activity in patients with left ventricular (LV) dysfunction. The aim of this study was to examine the effect of ARBs on sympathetic nerve activity and baroreflex function in patients with LV dysfunction already receiving ACE inhibitors.
Methods: Twenty patients with LV dysfunction already treated with ACE inhibitor (enalapril 5 mg/day) were randomly divided into two groups: treatment with 10 mg/day enalapril (control group) or 5 mg/day enalapril plus 80 mg/day valsartan (combination group).
Background: Sympathetic nerve overactivity and reduced exercise tolerance are characteristic features of patients with heart failure. However, to what extent sympathetic nerve overactivity contributes to limiting exercise tolerance has not been clearly defined.
Methods: Myocardial iodine 123-metaiodobenzylguanidine (MIBG) scintigraphy, muscle sympathetic nerve activity (MSNA), and cardiopulmonary exercise testing were performed within 3 days in 30 patients with left ventricular dysfunction (LVD).