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Fact Sheet: Tonsillectomy Procedures |
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Unfortunately, there may be a time when medical therapy
(antibiotics) fails to resolve the chronic tonsillar infections that
affect your child. In other cases, your child may have enlarged
tonsils, causing loud snoring, upper airway obstruction, and other
sleep disorders. The best recourse for both these conditions may be
removal or reduction of the tonsils and adenoids. The American
Academy of Otolaryngology—Head and Neck Surgery recommends that
children who have three or more tonsillar infections a year undergo
a tonsillectomy; the young patient with a sleep disorder should be a
candidate for removal or reduction of the enlarged tonsils.
The Tonsillectomy Today
The first report of tonsillectomy was made by the Roman
surgeon Celsus in 30 AD. He described scraping the tonsils and
tearing them out or picking them up with a hook and excising them
with a scalpel. Today, the scalpel is still the preferred surgical
instrument of many ear, nose, and throat specialists. However, there
are other procedures available – the choice may be dictated by the
extent of the procedure (complete tonsil removal versus partial
tonsillectomy) and other considerations such as pain and
post-operative bleeding. A quick review of each procedure follows:
- Cold knife (steel) dissection: Removal of
the tonsils by use of a scalpel is the most common method
practiced by otolaryngologists today. The procedure requires the
young patient to undergo general anesthesia; the tonsils are
completely removed with minimal post-operative bleeding.
- Electrocautery: Electrocautery burns the
tonsillar tissue and assists in reducing blood loss through
cauterization. Research has shown that the heat of
electrocautery (400 degrees Celsius) results in thermal injury
to surrounding tissue. This may result in more discomfort during
the postoperative period.
- Harmonic scalpel: This medical device uses
ultrasonic energy to vibrate its blade at 55,000 cycles per
second. Invisible to the naked eye, the vibration transfers
energy to the tissue, providing simultaneous cutting and
coagulation. The temperature of the surrounding tissue reaches
80 degrees Celsius. Proponents of this procedure assert that the
end result is precise cutting with minimal thermal damage.
- Radiofrequency ablation (Somnoplasty):
Monopolar radiofrequency thermal ablation
transfers radiofrequency energy to the tonsil tissue through
probes inserted in the tonsil. The procedure can be performed
in an office setting under light sedation or local anesthesia.
After the treatment is performed, scarring occurs within the
tonsil causing it to decrease in size over a period of several
weeks. The treatment can be performed several times. The
advantages of this technique are minimal discomfort, ease of
operations, and immediate return to work or school. Tonsillar
tissue remains after the procedure but is less prominent. This
procedure is recommended for treating enlarged tonsils and not
chronic or recurrent tonsillitis.
- Carbon dioxide laser: Laser tonsil ablation
(LTA) finds the otolaryngologist employing a hand-held CO2 or
KTP laser to vaporize and remove tonsil tissue. This technique
reduces tonsil volume and eliminates recesses in the tonsils
that collect chronic and recurrent infections. This procedure is
recommended for chronic recurrent tonsillitis, chronic sore
throats, severe halitosis, or airway obstruction caused by
enlarged tonsils.
The LTA is performed in 15 to 20 minutes in
an office setting under local anesthesia. The patient leaves the
office with minimal discomfort and returns to school or work the
next day. Post-tonsillectomy bleeding may occur in two to five
percent of patients. Previous research studies state that laser
technology provides significantly less pain during the
post-operative recovery of children, resulting in less sleep
disturbance, decreased morbidity, and less need for medications.
On the other hand, some believe that children are adverse to
outpatient procedures without sedation.
- Microdebrider: What is a “microdebrider?”
The microdebrider is a powered rotary shaving device with
continuous suction often used during sinus surgery. It is made
up of a cannula or tube, connected to a hand piece, which in
turn is connected to a motor with foot control and a suction
device.
The endoscopic microdebrider is used in performing a
partial tonsillectomy, by partially shaving the tonsils. This
procedure entails eliminating the obstructive portion of the
tonsil while preserving the tonsillar capsule. A natural
biologic dressing is left in place over the pharyngeal muscles,
preventing injury, inflammation, and infection. The procedure
results in less post-operative pain, a more rapid recovery, and
perhaps fewer delayed complications. However, the partial
tonsillectomy is suggested for enlarged tonsils – not those that
incur repeated infections.
- Bipolar Radiofrequency Ablation (Coblation):
This procedure produces an ionized saline layer that disrupts
molecular bonds without using heat. As the energy is transferred
to the tissue, ionic dissociation occurs. This mechanism can be
used to remove all or only part of the tonsil. It is done under
general anesthesia in the operating room and can be used for
enlarged tonsils and chronic or recurrent infections. This
causes removal of tissue with a thermal effect of 45-85 C°. The
advantages of this technique are less pain, faster healing, and
less post operative care.
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