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Updated:
December 22, 2003
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One technique used in blood
management is to take microsamples (drawing smaller amounts
of blood) for testing. |
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When Nadia F. learned of the
treatment options for her cantaloupe-sized fibroid tumor,
she did her homework and decided on surgery. She aced her
next assignment–to locate an experienced gynecologist who
would respect her wishes for a “bloodless” procedure–by finding
Dr. Winsome Parchment, an obstetrician/gynecologist at University
Hospital and an assistant professor of obstetrics and gynecology
at New Jersey Medical School.
“I
chose Dr. Parchment not only because of her commitment to
bloodless surgery,” says Ms. F., a Jehovah’s Witness, “but
because she was affiliated with a teaching hospital and had
performed the procedure many times. I was more concerned about
what type of incision she would use than the blood issue–that’s
how comfortable I was. I knew my beliefs regarding blood would
be respected.”
As
it turns out, Ms. F. lost more blood in pre-procedure testing
than during the surgery itself. By using meticulous surgical
techniques, Dr. Parchment didn’t even need the epinephrine-based
drug to constrict blood vessels or the cell-saver technology
that were available. Ms. F. left the operating room minus the
fibroid and with her desired “bikini” incision. Dr. Parchment
left the operating room knowing she had respected her patient’s
wishes, but what’s more, practiced good medicine.
A
year and a half later, Ms. F. is pleased to report she has
no scar and was back to work as a designer/decorator in a
month. She recommends Dr. Parchment to all her friends.
Bloodless
Medicine is Good Medicine
It’s common knowledge that
Jehovah’s Witnesses do not accept blood transfusions on religious
grounds. It’s also recognized that some people don’t want
transfusions because, despite more rigorous screening of donated
blood, they are concerned about the transmission of HIV or
hepatitis B or C. What might not be known is that there’s
been a mammoth change in thinking by the medical community
about blood transfusions that’s science based, with more than
500 articles as proof.
“There’s
an avalanche of data that supports bloodless medicine,” says
Dr. Edwin A. Deitch, medical director of the University Center
for Bloodless Surgery and Medicine and chairman of the Department
of Surgery at New Jersey Medical School. “We now know that
receiving donated blood can suppress the immune system, and
that the risks of transfusions can be greater than that of
anemia. Because of these developments, University Hospital
has a institution-wide commitment to bloodless medicine and
surgery that permeates every department. We study bloodless
procedures scientifically and practice them clinically.” Doctors
in more than 30 specialties are committed to bloodless care
at University Hospital.
Doctors
have fewer reasons today to transfuse blood than in the past.
There’s new thinking about how to treat anemia, a lower-than-normal
red blood count that can make a person feel tired, dizzy,
or weak. According to the National Center for Health Statistics,
about 3.4 million Americans are considered anemic, most of
them women. A complete blood count, by which a person’s hemoglobin
level can be measured, is one tool used to diagnose anemia.
Hemoglobin is the part of a red blood cell that carries oxygen;
the normal range of hemoglobin in men is 13-18 grams per 100
milliliters and in women, 12-16 grams per 100 milliliters.
Previously, when an anemic person’s hemoglobin level fell
to 10, a blood transfusion was ordered. Today, it’s widely
accepted that people can function well with lower amounts
of red blood cells, and it’s not until a level of 7 that a transfusion is even considered.
The
Bloodless Concept
The
term “bloodless” can be a stumbling block. After all, people
need blood to live. What the term refers to, in essence, is
a strategy that embraces conservation and replacement measures.
Reduce the amount of blood loss to begin with, and the chance
it will need replacement becomes more remote. Stimulate the
production of red blood cells before surgery, and anemia becomes
less of a possibility afterward. Salvage, clean and return
a person’s “lost” blood during an operation, and it’s unlikely
the patient will need anyone else’s.
“If
a patient donates her own blood before surgery and then afterward
gets it back, is that bloodless or bloodfull? Obviously, it’s
bloodfull,” says Dr. Robert Heary, a neurosurgeon, director
of The Spine Center at University Hospital, and an associate
professor of surgery at New Jersey Medical School. “As a general
rule, surgeons have always been taught to keep bleeding to
a minimum. What’s changed is the recognition that it’s in
the patient’s best interest not to transfuse blood.”
“Bloodless”
can also mean different things to different people. “Some
patients won’t accept blood transfusions or products under
any circumstances. Others will say, ‘I’d rather not have a
transfusion, but if it’s absolutely necessary, then OK,’”
says Michelle Thomas, BSN, RNC, coordinator of University
Hospital’s bloodless program, which enrolls about 500 patients
each year. “We have a protocol in place throughout the hospital
that ensures a patient’s wishes are followed. And our doctors
not only respect the beliefs of a bloodless patient, they
back it up with skill.”
One way a patient can make
her bloodless preferences known, says Ms. Thomas, is through
an advance
directive. In the event a patient can’t communicate
with a doctor, this document can state her medical wishes
on a variety of issues, from life support to blood transfusions.
Putting
The Tools to Work
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A "cell-saver" technology
collects blood as it is lost during surgery, cleanses
it, and places it back in the patient's body, all in a
continuous loop. |
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Bloodless medicine can be practiced
in many ways, some of which aren’t even noticeable to the
patient. When bloodwork is taken, for example, the phlebotomist
can use smaller tubes; with some blood tests, smaller amounts
of blood are needed than before. A “bloodless” oncology patient
might be started on red blood cell-boosting drugs sooner in
treatment than other oncology patients, says Ms. Thomas.
When
a surgery is planned, there are many bloodless approaches
that can be used. There can be measures taken to bolster the
patient’s red blood count ahead of time--the use of iron supplements
and erythropoieten, a medicine that stimulates production
of red blood cells, for example.
The
anesthesiologist also has a pivotal role in bloodless care,
with such options as hypotensive anesthesia, which lowers
the patient’s blood pressure and results in reduced blood
loss. The surgeon can use surgical lasers and argon beam coagulators,
practice careful cutting techniques, and clamp blood vessels
to minimize bleeding. When there is excess bleeding, “cell
saver” technology can collect the blood, cleanse it, and place
it back in the patient’s body.
Laparoscopic,
or minimally invasive, surgeries significantly reduce the
amount of bleeding. Instead of a large incision, several small
openings are made so that special instruments can be placed
within the patient’s body.
“There’s
very little blood lost in most routine decompressive spine
surgeries when minimally invasive techniques are used,” notes
Dr. Heary. "But for ‘open’ reconstructive procedures,
I recommend that patients donate their own blood if their
beliefs allow them to do so. If not, we then would use hemodilution
more aggressively." Hemodilution is a technique where
one or more units of blood are taken from a patient immediately
before surgery and replaced with IV fluids to compensate for
the missing blood. The patient’s blood is diluted, so fewer
red blood cells are lost. The blood that was drawn is slowly
returned to the patient through a continuous circuit.
As
an ob/gyn, Dr. Parchment says it’s important for her to know
early on if her patients have bloodless preferences. “I need
to be aware what products they will and won’t accept, and
especially in the case of pregnant women, maximize hemoglobin
levels,” she says. “Because miscarriage can occur at any time
in a pregnancy, the bloodless patient needs to seek medical
help at any sign of bleeding.”
If
a woman is hemorrhaging after the birth of her baby, there
are several ways to stop the bleeding, Dr. Parchment says–repair
of lacerations within the uterus or vagina, vigorous uterine
massage, medications that cause the uterus to contract and
thus press down on bleeding vessels, and arterial embolization,
where through interventional radiology, a catheter is placed
and small particles are delivered to stop the bleeding in
a vessel.
Bloodless
in the E.R.
Planning ahead is a key element of bloodless medicine and
surgery. But what happens during an emergency? Dr. David Livingston,
chief of trauma at University Hospital and professor of surgery
at New Jersey Medical School, says the trauma team focuses
on minimizing blood loss in all situations. “One way to do
that in select patients without resorting to a traditional
operation is by the use of angiography and arterial embolization,”
explains Dr. Livingston. "This is especially useful for
patients with liver and spleen injuries or pelvic fractures.
In patients that will accept blood, we can minimize the need
to give donated blood by collecting the patient's own
blood that’s been lost and autotransfuse it back into the
patient’s body.”
When
the trauma doctors and nurses know that a patient does not
want to receive a transfusion, those wishes are respected.
But in an emergency situation, the patient is often unable
to speak for himself. “On a rare instance, we have started
a transfusion, but a family member arrived and told us that
the patient did not want blood, so we stopped,” says Dr. Livingston.
“When a patient is identified as bloodless, the system is
in place and works well. People should understand that
following an accident, your wallet or purse indicating your
wishes may not arrive in the Emergency Department with you.”
A person’s bloodless status, he adds, can be noted on an emergency
medical bracelet.
While
many of the bloodless techniques used for planned procedures
are used in the trauma center, one notable exception is the
drug used to stimulate production of red blood cells. “Procrit
doesn’t seem to work well in trauma applications, and that’s
an area we are researching with support of a National Institutes
of Health grant,” says the trauma surgeon.
Commitment
to Bloodless
Today,
University Hospital is one of the few hospitals in the country
to have a bloodless medicine and surgery program. In time,
says Dr. Deitch, that will change. “Bloodless procedures and
techniques are being taught in medical schools today,” he
says. “In the next 10 to 20 years, I see bloodless practices
becoming the norm, rather than a rarity.”
“And
while the equipment and technology make bloodless medicine
and surgery possible, I truly believe that they are secondary
to the mindset of why we have them: to practice the best medicine
we can.”
For more information
on the Center for Bloodless Surgery & Medicine at University
Hospital, call 1-888-BLD-LESS (1-888-253-5377) or visit our
web site at:
http://www.theuniversityhospital.com/bloodless
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