Heart failure is a progressive disease that is associated with repeated exacerbations and
hospitalizations. The rapid increase in the number of heart failure patients is a global health …

The Japanese Circulation Society (JCS) published the “Guidelines for Pharmacological
Treatment of Arrhythmia” in 2004, and a revised edition was published in 2009. 1 Both …

Brugada syndrome (BrS) is one of the main inherited arrhythmia syndromes causing
ventricular fibrillation (VF) and sudden cardiac death in young to middle-aged men …

In 2009, the “Guidelines for diagnosis and treatment of myocarditis (JCS 2009)” were issued
by the Japanese Circulation Society (JCS). 1 Although this guideline has been widely used …

In 2019, the Guidelines for non-pharmacotherapy of cardiac arrhythmias (JCS/JHRS 2019)
were published, covering areas such as treatment using cardiac electrical implantable …

Computed tomography (CT) is often used in the diagnosis of sarcopenia. In this study, we
validated the assessment of sarcopenia by the psoas muscle volume using versatile …

Objectives This study aimed to compare acute hemodynamic improvements and responses
to His bundle pacing (HBP) and conventional biventricular pacing (BVP). Background HBP …

Background Left atrial (LA) conduction velocity (CV) is an electrical remodeling parameter of
atrial fibrillation (AF) substrate. However, the pathophysiological substrate of LA-CV and its …

Atrial fibrillation (AF) poses a serious healthcare burden on society due to its high morbidity
and the resulting serious complications such as thrombosis and heart failure. The principle …

Background: The incidence of sudden cardiac death (SCD) after discharge in Japanese
acute myocardial infarction (AMI) patients with reduced left ventricular ejection fraction …