The heart is a muscle about the size of your fist that pumps blood around the body. When the heart is functioning properly, it has a specific rhythm controlled by a mass of specialized heart tissue ...

Sick sinus syndrome (SSS) is a heart rhythm problem that affects your heart's natural pacemaker. You may develop symptoms of SSS like dizziness, fainting, and fatigue. Treatment may include lifestyle ...

Please provide your email address to receive an email when new articles are posted on . CHICAGO — A fast-acting nasal spray safely and effectively converted episodes of paroxysmal supraventricular ...

CHICAGO, IL—Low-dose rivaroxaban reduces thromboembolic events in patients with worsening heart failure, reduced ejection fraction, CAD, and normal sinus rhythm, a post hoc analysis of the COMMANDER ...

A 31-year-old woman with no significant medical history presents with intermittent heart palpitations, dizziness, shortness of breath, and fatigue provoked by exercise. Can you make the diagnosis? A ...