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More
about Botox® Injection
FDA-approved
uses:
- Strabismus and
blepharospasm, approved in 1989
- Cervical dystonia,
approved in 2000
- Hyperfunctional
facial lines, approved in 2002
Therapeutic
off-label uses:
- Focal dystonia
- Spasticity
- Stroke
- Cerebral palsy
- Spinal cord injury
- Multiple sclerosis
- Hyperhidrosis
- Tics and tremors
- Localized muscle
spasms and pain
- Chronic low back
pain
- Temporomandibular
joint disorder
- Headaches (migraine
and tension)
FDA
Approval for Botox Cosmetic Underscores Need for Expanded Physician Understanding
The
Food and Drug Administration's recent approval for the cosmetic application
of botulinum toxin type A (BTX-A) finally made official a longstanding
off-label use of the neurotoxin. Derived from the bacterium clostridium
botulinum and produced and distributed in the United States by Allergan,
Inc., BTX-A has been in use for years for a wide range of conditions such
as focal dystonia, spasticity and other disorders relating to involuntary
muscle activity Not until 1989 did the FDA grant approval for the use
of BTX-A. That approval applied only to the treatment of strabismus essential
blepharospasm and hemifacial spasm. Cervical dystonia was added to the
list of approved uses in late 2000. These approved neurological conditions
represent only a small number of the disorders found to respond to BTX-A,
while physicians continue to demonstrate the new applications of the neurotoxin.
Approved use
limited to glabellar lines, but many facial muscles are found to respond
In
the exploration of off-label uses of Botox, facial plastic surgeons found
that its acetylcholine-blocking action worked to minimize the effects
of contracting facial muscles–contractions that over time cause
wrinkles and furrows on the skin, particularly between the brows. In fact,
the FDA approval for BTX-A is limited to only treating those glabellar
lines that result from corrugator and/or procerus muscle hyperactivity,
though the treatment has also been used to combat transverse forehead
lines, lateral canthal wrinkles and for treatment of hypertrophic platysma
bands, among other locations on the face.
The
simplicity of the minimally invasive, in-office procedure, limited contraindication
and risk, ease of recovery and the often dramatic results produced with
Botox have made it the most popular cosmetic procedure performed in the
United States. With FDA approval, Allergan, Inc. has already begun its
media blitz to promote the cosmetic use of Botox, and demand for the procedure
is sure to increase. Healthcare professionals can best help patients who
desire Botox cosmetic procedures by becoming familiar with the indications
and risks and, perhaps most importantly, by communicating the fact that
the procedure should be performed only by a specialist with a deep understanding
of the musculature of the face.
Who benefits
most from cosmetic Botox?
The best candidate
for BTX-A is under the age of 65, generally has thin skin and has wrinkling
that is caused by hyperfunctioning facial muscles rather than photoaging.
Patients should also have no scarring around the injection sites, no preexisting
motor neuron disease and no history of hypersensitivity to the toxin.
Pregnant or lactating women should avoid the procedure.
Risks & complications
BTX-A injections are
extremely safe. Reported side effects are generally minimal and transient.
Patients may report a stinging sensation at the injection site, particularly
around the eyelids, and as with any injection, some bruising may occur.
A somewhat common adverse effect is the paralysis of muscles adjacent
to those injected, but this is temporary Rare adverse effects include
asymmetry in the face and ptosis resulting from injections given too close
to the brow or eyelid. This effect on the eyelid can also lead to an improper
blink response and/or epiphora. Double vision (diplopia) can also result
if an extraocular muscle is affected.
Experience
is number-one criterion in selecting a source for treatment
A quick and simple
procedure to perform, BTX-A treatment still requires the skill and experience
of a specialist. The most common complication, toxin that migrates to
surrounding muscles, may be more easily avoided by a surgeon who has expertise
with these muscles. Patients in the Madison, Eau Claire, Friendship and
Oshkosh areas who desire a Botox procedure can benefit from one of the
pioneers of Botox, Bradley N. Lemke, MD, FACS.
Dr. Lemke is an eye
plastic surgeon who is board-certified by the American Board of Ophthalmology
and by the American Board of Cosmetic Surgery in Facial Cosmetic Surgery.
His expertise in the use of botulinum toxin type A began with his role
in the development of Botox for the treatment of blepharospasm. In private
practice and at the University of Wisconsin Medical School, Dr. Lemke
participated in the original clinical trials for Botox nearly two decades
ago. Today he remains a pioneer in its use for ophthalmologic conditions
and cosmetic uses. He is pleased to talk with you concerning the needs
of your patients who are interested in Botox and may be reached by phoning
800.404.FACE.
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