Cosmetic and Reconstructive Surgery: Botox Injections & Laser Hair Removal

Botox injections

With the recent nod of approval from the Food and Drug Administration (FDA), the popularity of Botox injections has surged. Spas, shopping malls, walk-in clinics and even parties advertise the availability of this age-defying treatment. Even before FDA approval, the use of Botox was on the rise, increasing 61% between 2000 and 2001, according to the American Society of Plastic Surgeons.

Botox, the trade name for botulinum toxin type A, is used to lessen the telltale signs of aging by softening frown lines on the forehead and brow, crow's feet at the corners of the eye, and other wrinkles. But what is this toxin, how does it work, and who should be administering the procedure?

Botulinum toxin type A is one of several proteins secreted by the bacterium Clostridium botulinum. These proteins are neurotoxins; they attack nerve cells and paralyze the affected muscles. Ingestion of botulinum toxins causes the infamous food poisoning botulism. But when the purified form of botulinum toxin type A is injected into the muscles below the skin in very low doses, the result is a reduction in wrinkling.

As we age, our skin becomes less elastic and wrinkles remain even when the muscles controlling the skin are relaxed. Botulinum toxin lessens wrinkles by attaching itself to nerve endings in the muscle and preventing the release of the neurotransmitter acetylcholine. This blocks the nerve signals transmitted from the brain to the muscles and paralyzes or weakens the muscle controlling the wrinkled skin. The result is the smoothing out of the skin from disuse — if it can't move, it can't wrinkle.

Botox injections are done in a quick and easy procedure lasting less than 30 minutes. The toxin takes effect within a week. The results are temporary, however, so retreatment is necessary within three to six months. Botox may be used in conjunction with or as an alternative to other facial skin rejuvenation procedures such as chemical peels or laser skin resurfacing. When performed by an experienced physician, the most common adverse side effects of the procedure include headache, respiratory infection, flu syndrome, and nausea.

With the potential results and relative ease, it is easy to forget Botox is a prescription drug and not just an injection. However, the results of the procedure largely depend on the injector's knowledge of the complex muscular anatomy of the face, the effects of the drug, and the principles of aesthetics. Each face must be treated differently. An inexperienced or careless injector may introduce the toxin into parts of the face that result in droopy eyelids or brows. Injections in several parts of the face at the same time can result in excessive paralysis, leading to a "frozen" or unexpressive look that may take a few months to disappear.

For the best results, anyone considering this procedure should find a dermatologist or dermatologic surgeon with training and experience in the technique. The physician should also spend adequate time with the patient discussing the desired results and the patient's medical history. A patient must understand the risks, benefits, alternatives, and reasoning for the procedure. The injections should be performed in an appropriate setting such as a medical office with medical personnel and equipment ready to deal with potential complications.

The injections are on the pricey side, though, costing an average of $400.

December 2002 Update

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Laser Hair Removal

American men and women have long been preoccupied with hair removal. There are a number of ways to remove unwanted hair. The most common method is by shaving, which is fast, cheap, and effective, but the results smooth, hair-free skin are only temporary. Electrolysis can permanently end hair growth, but it is time-consuming because each hair must be targeted individually. In this technique, needles are inserted into hair follicles to destroy them. Once the hair follicle has been treated, the hair shaft is easily removed. However, because hair grows in cycles, dormant hairs can be missed when the procedure is done.

In 1997, the FDA began to put its stamp of approval on laser hair removal. Lasers work by emitting light at various wavelengths. The light is absorbed by melanin, a pigment in hair follicles, and heat is generated. The heat damages the follicle and spares the surrounding skin.

A study reported in the January 2000 issue of Dermatologic Surgery compared Alexandrite laser hair removal to electrolysis. The researchers used electrolysis to remove unwanted hair from the right side of 12 patients, and used lasers for hair removal on the left. After six months, 74% of hairs were completely removed by lasers, while only 35% were removed by electrolysis. The researchers determined laser hair removal is more expensive than electrolysis, but it was 60 times faster and less painful. Fewer sessions were needed and, according to the study participants, the results were better. When questioned, the participants said they found laser hair removal to be more effective and less painful, and that they preferred it to electrolysis.

For information about other hair-removal options, see page 557 of the Family Health Guide.

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