Arteries can narrow with fatty buildup. Blood struggles to move. Oxygen drops. A heart attack can follow, and it remains the ...

Arteries become clogged. Blood flow is restricted and oxygen is cut off. The result is a heart attack, the world's leading ...

Heart attacks are often thought of as a plumbing issue, the result of a blockage preventing blood from flowing through one of ...

What Is the Heart Conduction System? The heart conduction system is made up of cells, nodes, and signals that help your heart to beat. In fact, the cardiac conduction system is responsible for our ...

Having an accelerated junctional rhythm occurs when the atrioventricular node in your heart beats too quickly. It happens as a result of damage to your heart’s primary natural pacemaker. There’s no ...

Dear Reader: Your question reminded me of something that happened many years ago. A new patient came to my office. She told me that a colleague of mine had been her doctor, but she had stopped seeing ...

Certain heart arrhythmias, particularly atrial fibrillation, can disrupt blood flow and lead to the formation of blood clots that travel to the brain, increasing the risk of stroke. While arrhythmias ...

Mobitz type I, also known as the Wenckebach block, is a subtype of second-degree atrioventricular (AV) block. Mobitz type I is a type of conduction disorder, which happens when the electrical signals ...