ALEXANDER TSIARAS / SCIENCE PHOTO LIBRARY ALEXANDER TSIARAS / SCIENCE PHOTO LIBRARY
Paediatric heart transplant surgery. Close-up of surgery to close the endocardial tissue & chest wall in the final stages of the operation. The patient, a boy aged 48 days, was suffering from a potentially fatal congenital heart defect. For the course of the operation, the function of the heart & lungs was taken over by a machine, & the boy's body temperature cooled to 15 degrees C. The original heart was removed & replaced by a donor organ; connections to blood vessels were made using sutures 1/3 the size of a human hair. With the heart in place, body temperature was gradually restored to normal; warm blood flushed into the new heart caused it to begin to beat.
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