Right now, more than
17,000 people are on the waiting list for liver transplants in this country.
This year, fewer than 5,000 of them will get a liver, and more than 1,000
will die. But doctors like Lewis Teperman, the director of the transplant
program at New York University Medical Center, are working on a new solution.
Taking advantage of the liver's unique ability to regenerate itself, surgeons
have been cutting out large chunks of live donors' livers and transplanting
them into adults. Both parts of the tag-team process -- removing most
of the donor's liver and installing it in the recipient -- are grueling,
daylong surgical marathons, taking more than twice as long as a kidney
transplant. The removal is the more harrowing, because it means risking
a healthy person's life, a prima facie violation of the Hippocratic directive
to do no harm.
This is how Lew
Teperman and his surgical team harvested their 21st liver.
1.
Isolate the vessels. Early on the morning of Feb. 20, Teperman strode
into Operating Room 16 in Tisch Hospital at N.Y.U. Medical Center. Before
him, etherized, lay Risa Machuca, 24, an assistant to a music-video director
in Los Angeles. Upstairs in the transplant unit, her mother, Gail Schlanger,
a former waitress from Liberty, N.Y., and a recovering alcoholic with
end-stage cirrhosis, waited for the right lobe of her daughter's liver.
Teperman, a good-natured,
solidly built man of 44, greeted the 11 nurses, residents, surgery fellows
and anesthesiologists who crowded the small, equipment-jammed room, squabbled
with them over his taste in background music, then scrubbed up. At 8:53,
with a courtly "May we start?" he picked up a scalpel, traced an enormous
wishbone shape on Risa's torso and began cutting, to the mellow-rock strains
of the Crash Test Dummies.
The
first order of business in removing a lobe of the liver is to identify,
expose and isolate the main vessels that connect it to the rest of the
body and cut away all the minor attachments. A quick anatomy lesson: the
liver consists of two conjoined lobes, a fist-size left and a much larger
right that duplicate each other's functions as filters of the blood. There
are two main roads into the liver and two main roads out. Leading in are
the portal vein, which brings blood from the intestines laden with waste
products and nutrients, and the hepatic artery, which supplies fresh,
oxygenated blood from the heart. After the liver filters out the waste
and stores nutrients, it sends the waste, along with digestive acids,
through bile ducts back to the intestines and sends the exhausted blood
back to the heart via the hepatic vein. All of these structures have separate
entrance and exit ramps for the right and left lobes.
The chief danger
in this operation is bleeding from the hundreds of blood vessels that
must be severed. The bigger vessels -- anything more than two or three
millimeters across -- are tied off or sewn shut at two points and then
cut in the middle. The smaller ones are cauterized with a yellow-handled
electrical tool called a Bovie, which looks like a miniature soldering
iron.
Teperman, leaning
over an opening into Risa's abdomen the size of a Teletubby's TV screen,
threaded silk around a vessel, tied it and snipped the vessel with scissors;
looped, tied and snipped again.
He and the senior surgical fellow, Fadi Dagher, took turns on the Bovie.
Whenever the Bovie touched fat, a small flame flared briefly in Risa's
torso. Soon the room filled with the thick, acrid scent of burning flesh.
2. Expect the unexpected. Normally, it takes about eight hours
to take out a liver lobe. But about a quarter of liver donors have anatomical
abnormalities that require extra work.
Risa had three of
them, and they were doozies. She had an extra bile duct coming off her
left liver lobe but leading into the right-duct branch. She had an extra
hepatic vein, located, very unfortunately, on the back side of the liver.
This meant Teperman had to do some cuts by feel, reaching in and holding
the liver from behind and slipping the scissors between his hand and the
back of the liver. And she had an extra hepatic artery, again crossing
over from the left lobe to the right. This forced the doctors to cut into
the left lobe, which they normally would not touch.
Everything
was tangled, and some of the tangles were stuck to each other. The doctors
knew this going into the operation, but not the extent of the problem.
"The lady has very aberrant anatomy," Teperman announced three hours into
the surgery.
None of Risa's extra
attachments could be simply sacrificed, because they were all essential
to the functioning of her liver, which had to be kept working until moments
before the lobe was removed from her body, both for her sake and her mother's.
This also complicated the process of hooking the liver up to her mother,
who had one attachment where Risa had two.
"For
every structure," Teperman said later, "you have to make the decision
of what stays with her, and it has to remain viable, and what stays with
the part that's going to the mother, and it has to remain viable,
and often it's a decision that's a matter of millimeters."
Finally, at 12:31
p.m., Teperman determined that Risa's right lobe could be safely separated
from her left. The irreversible part of the operation could begin. "Call
for the recipient," he said.
3. Stay focused. At 1:30, after snipping out Risa's gallbladder
and stitching a bile duct closed, Teperman took a 15-minute break, during
which he went downstairs, used the bathroom and drank a Coca-Cola. A friend
gave him several potato chips and a little water. This was to be his only
pause and his only sustenance during 10 1/2 hours of precision hand work,
the first nine of which were performed standing.
Teperman is in good
physical shape; he runs and lifts weights two or three times a week. But
it is the stakes of the operation that keep him focused and sharp. "You're
thinking and doing at the same time, but you're not thinking about how
dangerous it is when you're doing it," he said. "You're thinking about
what's the right move to make."
The music helps,
too, he said, especially in a stifling, windowless room that feels like
a basement even though it's on the sixth floor. "Good tunes, something
familiar," he said. "You're going through something that may be unfamiliar,
and hearing a familiar sound makes it work."
4.
Cut through the lobe. "Jump in, let's go," Sheryl Crow sang at 2:07
p.m. as Teperman revved up an electric tool that vibrates at high speed
to cut through tissue and immediately sucks it away. "Lay back, enjoy
the show."
If dissecting out
the vessels around the liver was like sight-reading a Chopin étude on
a piano wired to explode if you hit a wrong note, cutting through the
liver lobe itself was more tedious but no less dangerous, like walking
a tightrope for five miles. Risa's liver had another anomaly. "She's a
wonderful lady, but her liver was huge," Teperman said -- about
20 percent larger than average. This, too, meant more work.
Teperman and another
surgeon, Glyn Morgan, began making their way a millimeter at a time through
the lobe, a chunk of meat about five inches wide, three inches high and
crisscrossed with veins of all sizes. Every time they reached a small
vein, they stapled or singed it shut. When they reached a big vein, they
had to decide where precisely along its length to cut it.
In his concentration,
Teperman grew more terse. "Clip . . . clip . . . more music . . . scissors
. . . suck here." Someone put on the Counting Crows CD for the third time.
No one objected.
At 3:24 p.m., Teperman
called in the head anesthesiologist, Marc Kanchuger. "I can't see the
monitor," Teperman said, referring to the screen on which Risa's vital
signs were displayed. "Can you move it toward me, please?"
"The more questions
he asks of me, the more nervous he is," Kanchuger said. "Whenever they
say, 'Get Kanchuger,' you know they're nervous, otherwise they'd have
the resident take care of it. But everything is fine. Her numbers are
perfect."
Just
after 5, Teperman, without pausing in his work, began catechizing a medical
student who had been observing the operation.
"How many hepatic
veins are there?" he asked her. "What's the portal triad? How many segments
is the liver divided into? Who is Couinaud?"
"Eight segments,"
replied the student, Shoshana Hort. "And Couinaud was the guy who identified
the sections of the liver."
"Very good," Teperman
said.
Across the hall,
Gail Schlanger's surgeon, Devon John, had taken his half of the operation
as far as he could. He and his crew were listening to Miles Davis and
waiting for Risa's liver.
At 5:38, behind
his bluish surgical mask, Teperman let out a big yawn.
5.
Don't drop the liver. As the operation entered the homestretch, Teperman
and Morgan picked up the pace, and their moves grew quicker and more graceful,
four hands working as two. Lift and tie, clamp and cut, tease and clip.
"It's like a well-rehearsed
orchestra," Teperman said later. "Sometimes you come out of the operating
room and just say wow, every maneuver clicked. Each person thought about
what the other one was going to do for the next move and was ready for
it."
Teperman had on
his closing music now, a quiet but rousing acoustic set by the 70's journeyman
Nils Lofgren. He used to use "Dixie Chicken," by Little Feat, but another
surgeon borrowed the CD and never brought it back. "No mercy, no quarter,"
Lofgren sang as an unattended pager beeped mournfully. "No place to hide
for me or the man."
At 6:07 p.m., with
all the clamps in place, Teperman made a couple of quick cuts and lifted
the large portion of Risa's liver out of her body. Cradling it in his
arms, he crossed the room quickly with a furtive expression on his face,
looking for all the world like a man stealing a piglet. He set the liver
down in a stainless steel bowl filled with chunks of frozen saline solution.
Teperman
and a resident sat on opposite sides of the bowl and flushed out the liver,
first with saline to get all the blood out, lest it clot before Gail could
be hooked up to it, then with a preservative solution. Teperman yanked
and tugged some of the vessels to expose them more, then sewed felt patches
onto the cut side of the liver, which looked raw with cooked spots on
it.
Teperman placed
the liver on a scale for weighing babies. "O.K., Dr. Morgan," he called
across the room. "You lost. It's 875 grams."
At
7:21, Teperman entered Operating Room 15 carrying the plat du jour,
liver on salted ice, covered tastefully with a blue towel. He set
it down on a table and announced, "The long awaited."
6. Make a final call. Eight o'clock and all was well. Risa's
liver was snug in Gail's abdomen, and Devon John was in the process of
hooking it up, which takes about five hours.
After waiting to
make sure Risa's bile ducts weren't leaking, Morgan, a resident and an
intern were closing her up. She will carry a reminder of this day in the
form of a Mercedes logo of scar tissue running from her sternum down to
her thighs. ("Depending on how it turns out," she had said two days before
the operation, "I'm thinking of getting a tattoo of a vine or some bougainvilleas.
You gotta work with what you have.")
Teperman
went downstairs to the messy canteen for a plate of chicken wings and
another Coke.
He swore he wasn't
exhausted. "I was tired when I came out," he said, his feet up on a chair.
"Now I ate something, and I'm fine."
After dinner, Teperman
went up to the transplant unit on the 14th floor to tell the family the
good news, but they were long gone. He popped an Altoid and called Gail's
husband and her sister, Linda.
"Linda,
this is Dr. Teperman. Where are you guys? We came up here looking for
you." Pause, smile. "You were hungry. Admit it." Pause. "Risa's up here;
she's fine. Gail's still on the operating table, but everything's fine.
Her new liver is in. It looks beautiful."
Andy Newman is
a reporter for the Metro section of The New York Times.
The New York Times April 8, 2001
From nytimes.com
Copyright 2001 Andy Newman. Reprinted by Permission. This material may
not be used in any manner except for personal reference without the written
permission of the author or The New York Times Company.
Copyright 2001 The New York Times Company