Save. A hookah is a type of water pipe used to smoke flavored tobacco, which is a popular social activity among young adults in the United States, the United Kingdom and the Middle East.ave. A hookah is a type of water pipe used to smoke flavored tobacco, which is a popular social activity among young adults in the United States, the United Kingdom and the Middle East.
Cardiovascular (heart) surgery is surgery on the heart or great vessels performed by cardiac surgeons.
Career Definition of a Cardiac Surgeon. Cardiac surgery is a specialization in the surgical field that is dedicated to treating heart conditions. Cardiac surgeons perform coronary artery bypass surgery, heart transplants, valve replacements and repairs of congenital heart conditions, according to the American College of Cardiology (www.acc.org).