SAMUEL ASHFIELD / SCIENCE PHOTO LIBRARY SAMUEL ASHFIELD / SCIENCE PHOTO LIBRARY
Heart surgery. Medical team performing coronary bypass surgery. An anaesthetist (far right) is monitoring a heart- lung machine (pump-oxygenator). This oxygenates the patient's blood and pumps it back around the body, allowing the heart to be stopped during surgery. The operation involves grafting blood vessels onto the heart in order to bypass blocked or narrowed coronary arteries, the arteries that supply oxygen to the heart muscle. The grafted blood vessels are usually taken from the patient's leg. Blocked coronary arteries can cause angina pectoris (chest pain) and heart attacks (myocardial infarctions).
Model release available. Property release not required.