A 76-year-old woman presents with a persistently rapid heart rate that she attributes to her pacemaker. What does the ECG show?

Mitral valve disease is a condition that affects the mitral valve, causing blood to leak backward or flow too slowly, and can ...

A ventricular septal defect (VSD) occurs when there is direct communication between the left and right ventricles. This can be a congenital anomaly or acquired as a complication of a myocardial ...

Congestive refers to fluid buildup in organs which results in symptoms such as shortness of breath and swelling in the legs, ...

The patients often experience severe organ damage or neurodevelopmental problems and some may require an organ transplant. Remarkably little is known about single ventricle heart defects ...