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t
has been a relatively quiet year at the American
College of Obstetricians and Gynecologists (ACOG).
The optimist in me hopes that this is the start
of a long period of mutual respect and teamwork
between our societies; the pessimist in me fears
that this is the calm before the storm.
Here is what has been happening recently at ACOG
as well as some upcoming events. I will divide this
article into a few separate sections. First, what
has been happening over the past few years (the
“good news”), and second, some of the
upcoming issues and how they may impact anesthesiologists.
Finally I will review recent events as they relate
to labor epidural-related infection and what impact
ASA and the Centers for Disease Control and Prevention
(CDC) might have in developing guidelines for practice
in this area.
I. The Good News
The “process” has been working well.
After a short period where ACOG or its representatives
made comments or published opinions not necessarily
in concert with the anesthesiology community, the
team spirit has been alive and well, and all relevant
or anesthesia-related committee opinions are once
again being reviewed by ASA representatives before
publication. Several key committee opinions have
been produced at the request of ASA members, and
all of the new committee opinions attempt to address
anesthesiology issues, including “Pain Relief
in Labor,” “Obstetric Management of
Patients with Spinal Cord Injuries,” “Safety
of Lovenox® in Pregnancy” and
“Placenta Accreta.”
Furthermore several other recent advances relating
to the ASA/ACOG relationship have been made. First,
a joint ASA/ACOG patient education brochure was
published this year and is now being distributed
to obstetricians across the country. Like the previous
ASA brochure, “Planning Your Childbirth”
also is available to ASA members through the ASA
Publications Department. The ASA logo appears next
to the ACOG logo, and, importantly, members of the
ASA Committee on Obstetrical Anesthesia were active
in helping to write this brochure.
Second, ACOG has continued to support ASA’s
position that it is beneficial to have an “Anesthesia
Update” lecture at its Annual Clinical Meeting,
and the third such lecture will occur at the ACOG
Annual Clinical Meeting this May 7-11 in San Francisco,
California. It is our hope that eventually this
lecture will become a permanent fixture rather than
one that is decided upon on a year-by-year basis.
Another example of improved communication between
ACOG and ASA is ACOG’s recent support of our
position relating to labor nurses being able to
assist in the management of epidural infusions.
ACOG Committee Opinion number 295 (July 2004) states
that “in an effort to allow the maximum
number of patients to benefit from neuraxial analgesia,
ASA and ACOG believe that labor nurses should not
be restricted from participating in the management
of pain relief during labor. Under appropriate physician
supervision, labor and delivery nursing personnel
who have been properly educated and have demonstrated
current competence should be able to participate
in the management of epidural infusions, including
adjusting dosage and discontinuing infusions.”
II. Future Issues
1. Revision of the Joint Statement and
Guidelines for Regional Anesthesia in Obstetrics
Guideline 3 of the ASA Guidelines for Regional Anesthesia
in Obstetrics currently states, “Regional
anesthesia should not be administered until: 1)
the patient has been examined by a qualified individual
and 2) a physician with obstetrical privileges to
perform operative vaginal or cesarean delivery,
who has knowledge of the maternal and fetal status
and the progress of labor and who approves the initiation
of labor anesthesia, is readily available to supervise
the labor and manage any obstetric complications
that may arise.”
ACOG has asked that ASA consider changing the language
in this paragraph of the statement as it believes
that the current wording is no longer representative
of modern practice. The ASA Committee on Obstetrical
Anesthesia believes that it is still appropriate
for an obstetrician to be the one requesting that
a parturient receive neuraxial analgesia and that
someone with operative privileges be “available”
should a problem occur. This issue will be brought
up at a future ACOG meeting and may produce several
less-than-perfect outcomes such as ASA changing
our position or having a guideline that is no longer
endorsed by ACOG.
2. Inclusion of Pediatrics in the “Vaginal
Birth After Cesarean (VBAC)” Policy
Last year’s ASA House of Delegates report
includes the following paragraph: “Unfortunately,
some administrators, insurers and risk managers
continue to look to the anesthesiologist to care
for not only the mother but, when necessary, also
the neonate if no other physician is immediately
available. Therefore, we recommend that ASA instruct
its Committee on Obstetrical Anesthesia to revisit
this issue and liaison with related specialists
such as obstetricians, pediatricians and neonatologists
to determine if more stringent guidelines should
be promulgated to address the need to have an individual,
other than the anesthesiologist attending the mother,
with the qualifications to resuscitate the severely
compromised neonate immediately available when parturients
are undergoing VBACs.” This issue has
been discussed with ACOG, and the American Academy
of Pediatrics has been asked to give its input before
a recommendation is made.
3. Clarification of the VBAC Policy
This ACOG policy needs to be clarified, especially
as it relates to the definition of the phrase “immediately
available.” This continues to be the single
most commonly questioned issue for anesthesiologists
who contact the Committee on Obstetrical Anesthesia.
In some scenarios, obstetricians have defined “immediately
available” for VBAC as 30 minutes, and in
other instances, the hospitals have required an
anesthesiologist to be present on the labor floor
even if no other cases are occurring (and occasionally
in hospitals where the obstetrician is not available).
Until now ACOG has not clarified its definition
of “immediately available” other than
saying that “immediately means immediately”
and that it is a “local decision.” Perhaps
further clarification will be possible in the future.
4. Use of Epidural Analgesia in Early Labor
A potential new ACOG committee opinion may need
to be considered regarding the use of early epidural
analgesia in labor based on recently published data.
A 2000 ACOG task force on cesareans suggested that
one of the factors involved with the increasing
cesarean rates involved placement of epidurals in
early labor. Based on strong opposition from ASA,
ACOG released a committee opinion in 2002 stating,
“Various studies report conflicting data with
regard to the level of risk of cesarean delivery
for nulliparous women who receive epidural analgesia
before 5 cm of cervical dilatation. As a result,
some institutions are requiring that laboring women
reach 4-5 cm of dilatation before receiving epidural
analgesia. The American College of Obstetricians
and Gynecologists wishes to reaffirm the opinion
published jointly with the American Society of Anesthesiologists
that while under a physician’s care, in the
absence of a medical contraindication, maternal
request is a sufficient medical indication for pain
relief during labor. Decisions regarding analgesia
should be coordinated among the obstetrician, the
anesthesiologist, the patient, and support personnel.”
Recent literature, however, including a landmark
study by Wong et al. published in the February 17,
2005, New England Journal of Medicine,
provides evidence that early epidurals do not cause
increased cesareans. It is my hope that at some
point in the future, ACOG will revisit this issue
and update its committee opinion.
III. Infection Following Neuraxial Analgesia in
Labor
ACOG informed ASA that it had received reports of
several recent cases of maternal mortality due to
infections in parturients who received neuraxial
blocks and asked that this be reviewed by ASA and
discussed with CDC. Though there is no central repository
to be able to specifically know either the numerator
or denominator, there do appear to be more anecdotal
reports of catheter-related morbidity and mortality
related to epidural or spinal abscess and meningitis.
While these cases might suggest that the number
of epidural/spinal infections appears to be increasing,
there is no definitive data to support this conclusion.
Preliminary discussions with CDC have occurred,
and at this point, it has been suggested that, as
a first step, ASA should attempt to evaluate this
issue in greater detail. It is clear that more information
is necessary before definitive conclusions or guidelines
can be proposed. Although there is a plethora of
information and guidelines regarding placement of
many different varieties of intravascular catheters,
there is no such information regarding neuraxial
catheters. Since there are currently no standards
or guidelines for antisepsis relating to initiating
epidurals or spinals in any patient (obstetrics
or nonobstetrics), this may have a large impact
on the practice of anesthesiology.
What guidelines exist elsewhere? Some foreign countries
require that a hat and mask be worn by anesthesiologists
placing epidurals or that hands be washed (or the
most extreme case, that anesthesiologists wear surgical
gowns). Why are the cases in obstetrics getting
more press? There are lots of possible reasons.
First, these cases may be more sensationalistic
or more likely to result in a lawsuit. They also
may be more likely to get published if submitted
to an anesthesiology journal. In addition, while
anesthesiologists performing neuraxial blocks for
surgery are forced to wear a hat and mask because
they are in the operating room, the same cannot
be said for labor epidurals when these blocks are
performed in a standard room on the labor and delivery
floor.
Furthermore there appears to be no standard regarding
disinfecting the skin of the back prior to epidural
placement. Most U.S. anesthesiologists use povidone
iodine (PI), and most of those using PI prefer single-use
bottles or packets rather than multiuse bottles.
Some, though, use two swabs, some three; some let
it dry while others wipe it off; and some continue
to use multiuse bottles of PI. Some anesthesiologists
use alcohol alone, some use alcohol plus PI, and
some use other agents such as DuraPrep™. Still
others in the United States (and most Europeans)
use chlorhexidine.
What is next? We need more information, and if any
of you has any ideas about how this should be handled
(or firsthand knowledge of cases that involve infection
following neuraxial blockade), please let me know.
The best way to reach me is via e-mail at <dbirnbach@med.miami.edu>.
I believe that we as a Society would probably benefit
from guidelines (especially ones that are written
by us as opposed to CDC). Before that can happen,
however, more information and a better method of
collecting data about these cases will be necessary.
Who should take the lead, ASA or CDC? I believe
that ASA and its subspecialty representatives are
best equipped to follow this up but that CDC should
be used as a valuable resource.
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David J. Birnbach, M.D., is Professor and Executive
Vice-Chair, Department of Anesthesiology, Miller
School of Medicine, University of Miami, Miami,
Florida. |
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