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 ...

DEAR DOCTOR K >> I recently had an ECG that showed that I have a "left bundle branch block." What does this mean? DEAR READER >> When your heart beats, it does so in response to electrical signals.

The heart works relentlessly, yet most misunderstand it until something goes wrong. From silent symptoms to emotional stress, ...

Third-degree heart block usually involves treatment with a temporary or permanent pacemaker. In some situations, treatment may include medications or synthetic hormones. Third-degree heart block, also ...

Arrhythmias, or irregular heart rhythms, are common complications of HCM. The thickened heart muscle disrupts the electrical pathways that coordinate heartbeat, leading to arrhythmias. Atrial ...

Arrhythmia is an irregular heart rhythm. The condition is usually not serious, but when it is, treatment is generally effective. Share on Pinterest Jasmin Merdan/Getty Images It’s common for children ...

Heart disease is the leading cause of death for women - for about 1 in 5 women - in the United States, according to the US Centers for Disease Control and Prevention. More than 60 million American ...