The sinoatrial (SA) node is the natural pacemaker of the heart. It generates electrical impulses that cause the heart’s chambers to contract, setting the heart rate. The SA node typically generates 60 ...
Seizures can disrupt the autonomic nervous system, potentially leading to cardiac arrhythmias, which are abnormal heart rhythms. Cardiac arrhythmias can cause convulsive syncope, a condition ...
Smartphone-based heart rhythm monitoring from home can reduce same-day cancellations and help save significant healthcare ...
Medically reviewed by Jeffrey S. Lander, MD Key Takeaways Bigeminy is an irregular heart rhythm where every normal beat is followed by an abnormal one. You should see a doctor if bigeminy causes ...