Also known as complete heart block, third-degree heart block is the most serious type of heart block. Considered a medical emergency, it can be fatal without prompt treatment. The steady beating of ...

First-degree heart block is the mildest type and often requires no treatment. Third-degree heart block is the most severe and often needs a pacemaker to regulate the heartbeat. Many different causes ...

Heart blockage, also known as coronary artery disease, occurs when plaque buildup narrows heart arteries, leading to symptoms like chest pain and potentially severe complications, and can range in ...

Lyme disease is a bacterial infection that can sometimes cause Lyme carditis. This condition commonly involves heart block. Symptoms can include lightheadedness, shortness of breath, chest pain, and ...