|
A new machine that combines the neodymium:YAG laser with cryogenic cooling
temporarily softens facial wrinkles while causing minimal side effects,
Dr. Michael P. Goldman said at the annual Hawaii dermatology seminar
sponsored by the Skin Disease Education Foundation.
The 1064:YAG laser selectively cools the epidermis with a blast of refrigerant,
alternating with infrared energy to briefly heat dermal tissue and
initiate a healing response. A thermal sensor makes sure the skin
temperature never rises above 40 degrees Celsius, protecting the
skin while the laser targets the collagenous layer underneath and
stimulates fibroblasts.
Studies have not yet been done to determine how much elastin and collagen is
being made by these stimulated fibroblasts after treatment, said
Dr. Goldman, a dermatologist in private practice in La Jolla, Calif.
His experience in 8 months of using the 1064:YAG - and similar results in peliminary
trials by other investigators over the past 2 years - suggest that
it can induce mild to moderate improvement in rhytids, which lasts
several months after one treatment. Only wrinkles - not skin blemishes
or other problems - are affected by the 1064:YAG's so-called thermescent
technique.
The technique does not seem to cause open wounds or pigmentation changes, regardless
of the skin type. Patients will need treatments every 8-12 weeks
to maintain benefits, "but they can go back to work immediately"
after each treatment, Dr. Goldman said at the meeting, also sponsored
by the Cleveland Clinic Foundation.
The technique eventually might attract people afraid of the pain, scarring,
expense, wounds and complications associated with other rejuvenation
techniques.
People with active lifestyles or who cannot afford 1-3 weeks of downtime may
be candidates for the technique. Dermatologists might use it to
complement light resurfacing peels or dermasanding.
State regulatory boards will face the question of who is allowed to operate
the 1064:YAG. "I believe this is something that non-MD's can
use," Dr. Goldman said.
He owns stock in Laser Aesthetics in Auburn, Calif., maker of the
laser. The 1064:YAG has been approved for general dermatologic surgery;
the company is seeking approval for other indications.
|
