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 ...

Second-degree heart block is a potentially serious but treatable condition affecting the heart’s electrical system. Treatment may require a pacemaker to stabilize the heart’s rhythm. Electrical ...

Medically reviewed by Christopher Lee, MDMedically reviewed by Christopher Lee, MD Heart block is a delay or disruption within the heart's electrical conduction system that controls the rhythm and ...

Dear Dr. Roach: My husband had a stress test done several years ago, and at the time, it was discovered that he had a bundle branch block in his heart. No one mentioned it until recently, after he had ...

Jessika Seward, then 22, felt a jolt of pain in her chest while working an overnight shift as a cardiac nurse in April 2023. At first, she brushed it off. But the pangs continued for a half hour and a ...

They’re getting to the heart of the issue. Doctors say a simple “three-pronged” blood test can accurately predict a patient’s risk of heart attack and stroke 30 years ahead of time. At present, medics ...