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 ...

Atypical chest pain usually feels like a burning or stabbing pain in your chest. Your heart isn’t always responsible. Lung conditions, acid reflux, or cartilage inflammation can also cause chest pain.

Susan Russell, MD, is a board-certified pulmonologist and Medical Director of Medical Intensive Care Unit (MICU) for Northwestern Memorial Hospital's Medical ICU. Muscle strain commonly causes chest ...

Experts generally define atypical chest pain as any pain that does not have the same characteristics as typical chest pain. Typical chest pain presents as follows: A person will have chest discomfort ...