When the world¡¦s first face transplant was performed in France in 2005, it pushed medical boundaries and made news. Yet the procedure¡¦s future was very much in doubt.
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The surgeons, operating on a 38-year-old Frenchwoman whose face had been mauled by her pet Labrador, had to surmount the opposition of prestigious medical societies, which declared the procedure unethical and immoral. Critics, including surgeons who had lost out in competing to do the first face transplant, said the pioneering team did not follow ethical and legal guidelines.
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But the first comprehensive review of every face transplant reported since then ¡X 28 in seven countries, counting the French case but not two done in Turkey since the review was completed ¡X has removed many of those early doubts.
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The report, published online by The Lancet in April, says the procedure is generally safe and feasible, and should be offered to more patients.
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The endorsement is cautious: The researchers note that the operation is still experimental, risky and expensive (at least $300,000), and that patients must be carefully selected. After the transplant, recipients may have risks of infection and reactions to toxic anti-rejection drugs.
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But the paper adds that for many people ¡X victims of genetic disorders, gunshots, animal bites, burns and other accidents ¡X transplants can ease or erase the grotesque deformities that leave them subject to taunts, discrimination, isolation and serious depression.
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Conventional reconstruction techniques are often inadequate, and can produce terrible scars and deformities at the sites in the patient¡¦s body from which tissue is removed and transferred to the facial area.
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By contrast, face transplants have transformed the lives of nearly all the surviving recipients. They have regained their ability to eat, drink, speak more intelligibly, smell, smile and blink; many have emerged from ostracism and depression. Four recipients are back to work or school. (Three patients died.)
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The idea of one individual wearing another¡¦s face initially frightened some critics. But the new face ¡§is a pretty unique blend of the recipient and the donor, and it is not as if you would recognize the donor walking down the street,¡¨ the review¡¦s senior author, Dr. Eduardo D. Rodriguez of NYU Langone Medical Center in New York, said in an interview. He holds degrees in medicine and dentistry, and led the team that performed a full facial transplant in 2012 when he was at the University of Maryland.
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New faces initially feel numb, as if the recipient had come from a dentist¡¦s office. But the numbness lasts for months.
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Skeptics doubted that recipients would ever regain normal facial sensations ¡X feeling a kiss or a breeze, smelling mowed grass. But some did, as early as three months after the transplant. Some critics said nerve repair would take too long to achieve functional gains, for instance in eating and swallowing, but some patients could bring their new lips together by six months and close their mouths by eight months. By three months, some were able to swallow and speak intelligibly. Smiling began later, after about two years, and continued to improve after eight years.
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Not surprisingly, the overriding reason for success was a rigorous pre-transplant effort to identify candidates who would be motivated to stick to an anti- rejection regimen and who had a strong social support system. Deciding who is and who is not a face transplant candidate can be more grueling than the surgery, which can take longer than a day.
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Surgeons can spend years training for the procedure and then spend months more seeking a donor with a compatible complexion, bone structure and other important characteristics.
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One team removes the face and underlying tissues from a donor, while a second team removes the damaged portions of the recipient¡¦s face. Bone, if needed, is attached first. Then four major arteries and veins, two on each side of the upper neck, are attached as quickly as possible. Once blood flows to nourish the new face, surgeons can take more time to stitch nerves, muscles, other soft tissues and finally the skin.
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As the graft heals and nerves regenerate, rehabilitation to relearn speaking and other tasks begins; monitoring for rejection lasts a lifetime. The early successes of hand and arm transplants, starting in 1998, helped advocates for face transplants. Because both kinds of transplants involve a mixture of bone, blood vessels, muscle, nerve and other soft tissues, skeptics said standard immunosuppressant therapy might not prevent rejection. But a three-drug regimen used for heart, liver and kidney transplants turned out to work.
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French surgeons have performed 10 face transplants. Seven transplants have been done in the United States, seven in Turkey, three in Spain, and one each in Belgium, China and Poland.
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Dr. Rodriguez said he undertook the review to help improve outcomes in future cases, and to determine how many face transplants needed to be done to convince health insurers to pay for them. The costs of surgery and anti-rejection therapy require lifelong financial support. Many recipients need post-transplant surgical revision for such problems as bone and dental realignment, which increases the risk of infection and poor wound healing.
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Government agencies have contributed to pressure for expansion. As Dr. Rodriguez said, ¡§With some victims from fire, police and military armed services, it can be argued that we have a moral imperative to restore them to society.¡¨
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