David A Graham MD

Recommended Articles

• What Is a Bubble Study?

  What is a bubble study?A bubble study is a type of echocardiogram, which is the ultrasound of the heart. An echocardiogram is done to visualize the heart and its surrounding areas. Better images of the heart can be produced when a “contrast” is used during the echocardiogram. In a bubble study,...

• Stress Can Directly Affect a Woman's Heart

  Results of a study presented in the Experimental Biology 2012 meeting in San Diego showed that coping with mental stress is harder on a  woman's heart, when compared to that of men. Researcher Chester Ray, PhD, professor of medicine, and cellular and molecular physiology at Penn State's College of...

• What are the Stages of Congestive Heart Failure?

  Once a heart failure is diagnosed, it is evaluated. To commence the proper evaluation of heart failure, it is essential to share a complete and accurate history of what you are experiencing and what you have experienced so far with your doctor. Providing a complete and accurate history of your...

• How Atrial Fibrillation Is Diagnosed

  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 Are the Triggers of Atrial Fibrillation?

  What are the Triggers of Atrial Fibrillation?Atrial fibrillation (A-Fib) is a condition that affects the upper chambers of the heart, also known as the atria.In a healthy human heart, the electrical impulses pass through the atria through a contraction to the ventricles and fibers to complete a...

• Heart Palpitations: What Is It and What Are the Causes?

  Our heart rate is automatically controlled by the autonomic nervous system (ANS) that has two divisions: sympathetic and parasympathetic. The part of the ANS that is responsible for raising a person’s heart rate through the sympathetic plexus is the sympathetic division. The parasympathetic...