BCAA consists of the amino acids leucine, isoleucine and valine. The reason these three amino acids are called BCAA is because they branch off from the other five essential amino acids, (there are a total of eight), to create their own chain. Amino acids are responsible for the formation of proteins in the body.
An aneurysm is an abnormal bulging out or ballooning of a portion of the artery, usually due to weakness of the arterial wall. The aneurysm may enlarge and rupture, often with disastrous consequences.
Angioplasty is a procedure to open blocked or narrowed coronary (heart) arteries. It can improve blood flow, relieve chest pain, and possibly prevent a heart attack. Sometimes a small mesh tube, called a stent, is placed in the artery to keep it open after angioplasty.