Raymond Daniel Merrick MD

Atrial fibrillation (AFib) is a condition that disrupts the heart's functions, specifically the heart rate or rhythm. Symptoms can be intermittent, persistent, or permanent in nature, and in some instances they disappear on their own, while other forms require medication to restore normal heart...

What is Ehlers-Danlos syndrome (EDS)?Ehlers-Danlos syndrome (EDS) is a group of genetic disorders that affect the body’s connective tissues, which are proteins that support the blood vessels, skin, bones, and other organs in the body. Connective tissues also provide elasticity and strength to the...

IntroductionDoctors who specialize in the diagnosis and treatment of conditions or diseases of the cardiovascular system (the heart and blood vessels) are called heart doctors or cardiologists. These specialists are trained to identify, treat, and help prevent heart issues. There are also different...

OrthopneaOrthopnea is a condition that causes breathing difficulties when an individual is lying down. It usually happens at night when the person is going to sleep. People with orthopnea usually experience tightness in the chest and being oxygen-deficit. The shortness of breath is due to lying down...

Heart failure, or congestive heart failure, is a chronic condition that indicates the inability of one’s heart to sufficiently fill with blood or distribute adequate amounts of blood to the entire body.Heart failure usually occurs in individuals with advancing age. However, anyone can develop the...

The American Heart Association released a new statement stating that there is no conclusive evidence to support the relationship between gum disease and heart problems, and that treating gum disease can improve heart conditions. Gum disease is a major contributor to tooth loss and decay in adults....