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Body grafts don’t look or work like the skin on
the face, and they can’t fully restore appearance or movement. But
recent advanced medical technologies have enabled partial and full
facial transplants of a face from a donor. The result looks and
acts far more realistic than skin grafts, but the transplant isn’t
without trepidation. |
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A very real concern to any transplant is rejection
of foreign tissue from the donor. Anti-rejection drugs developed in
the 80’s improved to the point where transplantation surgery became
quite routine and far less risky. |
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Doctors made history in 1994 when they performed
the first human face reattachment. 9 year old Sandeep Kaur’s hair
was caught in the threshing machine as she was chopping grass in
northern India, tearing her entire face, scalp and hair off.
Sandeep’s family put her face in a bag and drove her to the
hospital, where surgeons performed surgery to reattach her face and
scalp. |
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She was left with some scars and has never
regained full mobility in her face, but she’s been able to lead a
normal life. A number of more successful face reattachment
surgeries followed, including an operation at Massachusetts General
Hospital on a man whose hair was caught in a conveyer belt at
work. |
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Isabelle Dinoire is
wheeled out of the operating room after the first
face transplant surgery. Photo Michael Hugues /
AFP |
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The first recipient of the world’s first partial
face transplant from a donor was 38 year old Isabelle Dinoire in
May 2005. Dinoire took sleeping pills and passed out on her sofa,
awaking to find her Black Labrador had chewed off the lower part of
her face including her chin, lips and much of her nose, leaving her
teeth and gums completely exposed. |
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“I couldn’t believe what I was seeing — it was too
horrible.” she told the New York Times. After the incident, Dinoire
was forced to eat pureed food and wear a surgical mask to hide her
disfigured face. |
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Surgeons Bernard Devauchelle and Jean-Michael
Dubernard performed the transplant from a 46 year old female donor
who had been left brain dead from a suicide attempt, requiring two
medical teams consisting of about 50 professionals to perform the
surgery at a hospital in Amiens, France. Within a week after the 15
1/2 hour surgery, Dinoire could speak, eat and drink, but doctors
said it would likely be several months before she gained
sensitivity in her new skin. |
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Li Guoxing in July 2006,
after the first stage
of his face transplant. China Photos |
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Li Guoxing had been attacked by a bear in his
farming field, ripping away most of the right side of his face
including part of the bone in his nose and cheek. A team of 18
doctors led by Guo Shuzhong performed a 15 hour operation in 2006
to give him a new nose, upper lip, cheek and eyebrow from a
brain-dead donor. The surgery was highly successful, and Guoxing’s
new skin even sprouted facial hair and acne within days of the
operation. |
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French doctors performed a 3rd partial face
transplant in 2007 on a 29 year old man with neurofibromatosis — a
disease that causes tumors to grow on nerves throughout the body —
leaving him so disfigured he was unable to eat or speak. Doctors
gave the man a new nose, mouth, chin and cheeks over a 15 hour
operation. |
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The success of these three partial face
transplants has prompted doctors to attempt the first full face
transplant, which would include an entire face, as well as the ears
and hair. In 2004, the Institutional Review Board at the Cleveland
Clinic gave doctors there the go-ahead to proceed with the
operation. As of 2007, all that was left to do was find the right
candidate. |
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Face Transplant
Surgery
Candidates must first be physically healthy enough to undergo
surgery, and psychologically prepared to handle the emotional
stress of undergoing such a huge physical transformation. People
who undergo this operation may need counseling to regain some
normalcy in their lives. |
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Li Guoxing the day
before the second stage of his face transplant
in November 2006. China Photos |
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In order to perform
a successful face transplant the right match for donor is critical,
including similar age and skin tone, blood and tissue to avoid
rejection. The tissues must still be connected to an active blood
source, so the donor has to be alive on life support, but brain
dead with no hope of recovering.
Doctors use a test
called HLA typing to find a good match, which looks for proteins
called antigens on the surface of tissues. Antigens are what
stimulate the body’s immune system to launch an attack and reject
foreign tissue. Tissue type is based on a pattern of antigens.
Each of us has a
different pattern with the exception of identical twins. The closer
the antigens match, the less likely that the recipient will reject
the transplanted tissue. In Isabelle Dinoire’s case, doctors gave
her an infusion of bone marrow stem cells from the donor to prepare
her immune system and reduce the odds of rejection.
Surgeons first cut
and peel away the donor’s face. Depending on the extent of the
damage to the recipient’s face, the surgeons will take not only the
skin but the underlying fat, muscle, cartilage, nerves, arteries
and veins, and even bone for extreme cases.
A medical team then
transports it on ice to the recipient waiting in another hospital
operating room, where the patient is lying in wait after removal of
the damaged skin and muscle.
Using microscopic
needles and thread, surgeons first connect arteries and veins to
the new tissue to supply it with the oxygen-rich blood it needs to
live. Not all of the arteries and veins are required to be
connected; only a few will ensure that enough blood flows to the
face. Nerves and muscles are then connected so the patient has
feeling and movement. Doctors drape the donor’s face over the
recipient’s skull, adjust it to fit and sew it into place.
The patient will
have to take immunosuppressant drugs for the rest of their life to
prevent tissue rejection. Those who take immunosuppressive drugs
are more likely to develop diabetes, kidney disease, infections and
cancer.
If the surgery
fails doctors have one of three options — they can remove the face
and perform another transplant from a new donor, resurface the face
with artificial skin or cover the space with grafts of real
skin. |
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Chinese surgeons
practiced face transplants on rabbits before humans. China
Photos |
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Doctors in China
practiced on more than 50 rabbits and 10 human corpses before
operating on Li Guoxing. Similar transplantation techniques have
been tested on rats and corpses at the Cleveland Clinic, where
doctors have been gearing up to perform the first full face
transplant.
Face transplants
are still subject to controversy — ethical concerns over the donor
whose family must be willing to turn off life-support machines
while the person is still technically alive, and patients assuming
the risks of major surgery when their lives are not technically in
danger. The ultra-rich might opt for face transplants simply to
look prettier or younger.
It may be years
from now until doctors have the face transplant technique down to
perform a seamless operation to the point that the recipient has a
completely natural looking and performing face. It will also take
many years before doctors know the long-term effects of facial
transplants. |