DR P. MARAZZI / SCIENCE PHOTO LIBRARY DR P. MARAZZI / SCIENCE PHOTO LIBRARY
Aorta surgery. Surgeon using an electric saw to open a patient's chest during heart surgery. He is cutting through the breastbone, or sternum. This surgery is being carried out to replace an aorta (the body's main artery) that has become dilated due to a bicuspid aortic heart valve (BAV). A BAV is a congenital defect of the aortic valve where it has two cusps (sealing flaps) rather than the usual three. This can reduce the strength of the descending aorta, leading to an increased risk of dilation or aneurysm.
Model release available. Property release not required.