
The Benefits of Intravenous Anesthesia
George A. Nail, M.D., D.D.S.
Until
the advent of local anesthetics, surgery was a very traumatic and
painful experience. The very best surgeons were by no means the
gentlest; they were the fastest. General "ether" anesthetics helped
alleviate pain, but were very dangerous to administer and unpredictable
in the dosing. The advent of local anesthetics truly revolutionized
in-the-office surgery, particularly in the dental profession. Our
understanding of the anatomy of the head and neck and the efficacy of
local anesthetic nerve block has enabled dentistry to be routinely and
painlessly performed in an office setting. The advent of safe
intravenous sedation and deep sedation/general anesthetic techniques
have enabled the oral and maxillofacial surgeon to perform complicated
oral and facial surgery procedures in the comfort and convenience of
the office surgical suite, thus allowing the patient to return home
that day. Intravenous anesthetics in use today are rapid in onset, very
potent, and rapid in elimination. This assures that the patient is
completely relaxed and unaware for the surgical procedures and allows
for a rapid recovery and the ability of the patient to be discharged
home.
Our
knowledge of local anesthetic techniques coupled with our training in
intravenous sedation/deep sedation/general anesthetic techniques allows
us to perform procedures of a complexity that too often is taken for
granted. The removal of impacted wisdom teeth, for example, is usually
more difficult than the removal of tonsils, but due to the fact that it
is most often performed in an office surgical suite instead of a
hospital, it is deemed by patients and oftentimes referring clinicians
to not truly be "surgery". In fact, many procedures performed in the
hospital under general anesthetic could be much more easily,
economically, and conveniently performed in an office surgical setting
if the physician were trained in local anesthetic and intravenous
general anesthetic techniques. Due to the general lack of training
among physicians in these techniques, procedures such as the placement
of ear tubes in children, digital and extremity amputations, and soft
tissue facial plastic procedures requires the use of an
anesthesiologist and a general anesthetic or block local anesthetic
and, therefore, are performed in a hospital setting.
In
the everyday practice of dentistry, extractions are performed. While
many of these extractions are simple and can be accomplished with
minimal manipulation and quite comfortably under a local anesthetic, a
surgical extraction requiring the use of a handpiece and adequate
visualization are much more easily accomplished under a monitored deep
sedation. Such a sedation produces amnesia for the event, enables the
patient to be completely relaxed, not only emotionally, but also from a
musculoskeletal standpoint, and allows the safe completion of the
procedure. By performing procedures under deep sedations, the
procedures are almost always shorter, are almost always performed more
gently due to improved access and visualization, and produce a much
quicker recovery than when the patient is awake during the procedure
and involuntarily tensing and tightening cervical and facial muscles.
Briefer procedures produce less postoperative swelling and discomfort
and a lower incidence of infection.
These
considerations might be kept in mind in evaluating a patient for a
potential oral surgical procedure. In private practice, I have rarely
had a patient say to me after a surgical procedure that they wished
they had been awake for it, but I have had a few wish they had been
sedated. Certainly, treating a patient in a fashion in which they are
completely relaxed, comfortable, and have an uneventful recovery
promotes a happier patient for both the surgeon and the referring
clinician.
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