The right atrium is one of the four chambers of the heart. The heart is comprised of two atria and two ventricles. Blood enters the heart through the two atria and exits through the two ventricles.

Abbott published findings from the AVEIR DR i2i study evaluating the company's novel dual-chamber leadless pacemaker (LP) ...

Atrial flutter is an arrhythmia that results from an abnormal electrical circuit inside one of your heart’s two upper chambers, or atria. Most often, this faulty signal develops in the right atrium.

The tricuspid valve controls blood flow between the right atrium and right ventricle. The bicuspid or mitral valve does the same on the left. The heart consists of four chambers. The left and ...

A dual-chamber leadless pacemaker system consisting of two devices implanted percutaneously, one in the right atrium and one in the right ventricle, would make leadless pacemaker therapy a ...

This opening allows oxygen-rich blood from the left atrium to mix with oxygen-poor blood in the right atrium, forcing the heart to work harder than normal. During fetal development, several ...

St. Luke’s Heart Team pioneers first EVOQUE tricuspid valve replacement in the region, offering new hope for patients with ...

St. Luke’s Heart and Vascular team became the first in the region to perform a transcatheter tricuspid valve replacement ...

When right atrial enlargement occurs, it does not take longer for cardiac action potentials to travel through the atrial myocardium (similar to left atrial enlargement). However, the amplitude of ...

Knowing about atrial septal defect symptoms and getting treatment at the right time will benefit your child. The heart has four chambers: two atria above and two ventricles below. The two atria ...

Atrial septal aneurysm means that there is a bulge in the interatrial septum. It may not present with symptoms. However, it can occur alongside other heart problems that cause symptoms such as ...

Changes in leaflet structure and annular size and dynamics, as well as changes in right ventricular support structures or function, can disrupt tricuspid-valve function. As seen from the atrial ...