ANTONIA REEVE / SCIENCE PHOTO LIBRARY ANTONIA REEVE / SCIENCE PHOTO LIBRARY
Blood bypass tubes being used during surgery to repair an aortic aneurysm. The tubes are attached to the patient's body in the groin area (centre left), and reroute blood through a heart-lung machine during surgery. The patient's torso is off the left edge of the image. A similar bypass at the neck controls blood flow for the head. These bypasses reduce the blood flow around the heart and the aneurysm, allowing surgery without fatal internal bleeding. The aortic aneurysm (a swelling of the main body artery) is in the aortic arch, the area where the aorta leaves the heart. The aneurysm was replaced by an artificial aortic arch. For the surgery, see images M551/331-336.
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