Your heart is a muscular organ that helps circulate your blood, which delivers oxygen and nutrients to your tissues. There are four chambers and four valves in your heart, and each ensures proper ...

A naturally occurring fat molecule reduced heart inflammation and scarring caused by diabetes, thereby improving cardiac function, according to new research. The findings open the door to developing a ...

When the heart struggles to pump efficiently, a cascade of events unfolds. Fluid accumulates in the lungs and extremities. Breathing becomes labored. Simple activities like climbing stairs or carrying ...

A heart PET scan is a noninvasive imaging test that uses a small amount of radiation. It helps doctors understand how the heart functions and whether it is healthy. Cardiac or heart PET scans create ...

In diseased hearts, low-dose radiation therapy appears to improve heart function. Cardiologists and radiation oncologists at Washington University School of Medicine in St. Louis pioneered the use of ...

A heart perfusion imaging scan, or myocardial perfusion scan, is a test that tells doctors how well a person’s heart pumps blood. Doctors may use this test when diagnosing the cause of chest pain or ...

The heart works tirelessly throughout life, pumping approximately 2,000 gallons of blood daily through a complex network of vessels that nourish every cell in the body. When this vital organ begins to ...

A new gene therapy can reverse the effects of heart failure and restore heart function in a large animal model. The therapy increases the amount of blood the heart can pump and dramatically improves ...

Accurately measuring electrical signals and calcium levels in the heart can lead to earlier treatment of potentially fatal conditions, such as heart attack or congestive heart failure. Calcium plays ...

In two large studies of heart attack survivors, beta-blocker drugs benefited those with mildly impaired heart function Contradictory trial results seen in patients without heart dysfunction More data ...