Vasovagal syncope is fainting caused by a complex nerve and blood vessel reaction in the body. It's the most common cause of fainting. Unlike other causes of fainting, it's not a sign of a problem with the heart or brain.

Procedural sedation is medicine to ease discomfort, pain, and anxiety during a procedure. While you are under sedation, you will likely be awake. But you may not remember anything afterward.

Read on to learn about ovarian cysts, including treatment when one ruptures and follow-up care.

Pericardial effusion is the buildup of extra fluid in the sac around the heart. If too much fluid builds up, it can put pressure on the heart. This can prevent it from pumping normally.

A fusion is a surgery to join 2 or more bones together. During an extreme lateral interbody fusion (XLIF), this is done on the spine.

Cardioversion is a procedure that is done to return your heartbeat to a normal rhythm. It's done when the heart is beating very fast or irregular.

Percutaneous balloon pericardiotomy (PBP) is a procedure to drain extra fluid from the sac around the heart. It's done with a long, thin tube (catheter) that has a small balloon attached. A small hole is made in the sac. Fluid is then drained out through the tube.

ARVC is a rare genetic disease of the heart muscle. It replaces normal heart muscle with fatty fibrous tissue, mainly in the right ventricle.

Atrial fibrillation is the most common abnormal heart rhythm in the world. It causes the atria to quiver instead of pumping normally. This can cause blood clots and lead to stroke.

Vasovagal syncope is fainting caused by a complex nerve and blood vessel reaction in the body. It's the most common cause of fainting. Unlike other causes of fainting, it's not a sign of a problem with the heart or brain.