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    Light Plus Suction Promising for Acne

    But More Study Is Needed, Expert Says
    WebMD Health News
    Reviewed by Louise Chang, MD

    April 12, 2007 -- A novel approach to treating acne, which combines light therapy with skin suction, shows promise in an early trial.

    In the small study, 15 patients with severe acne experienced significant improvements in their acne lesions after as few as two to three weekly treatments, researchers say.

    Study researcher Gilly Munavalli, MD, is slated to report the findings Friday at the 27th Annual Conference of the American Society for Laser Medicine and Surgery (ASLMS) in Grapevine, Texas.

    Known as photopneumatic therapy (PPX), the new approach combines pulsed light treatment with skin suctioning using a vacuum device. Munavalli tells WebMD that the suctioning helps clean clogged pores and intensifies the effects of the light treatment by bringing oil glands closer to the skin’s surface.

    “The suction really unclogs the pores, which allows the oil to flow more normally to the surface,” he says. “The light helps kill the bacteria that cause acne.”

    FDA Cleared

    The treatment was recently cleared by the FDA for use in several types of acne. But because laser and light therapies are procedures and not drugs, the move did not require clinical studies showing the treatment to be effective.

    The American Academy of Dermatology considers light therapies promising, but unproven, for the treatment of acne.

    A position statement posted on the Academy’s web site pointed out that the data from clinical trials are, at present, limited, and that insurance companies generally do not pay for the treatments because they are considered “emerging technologies.”

    “With time, research, and experience, laser, and light therapies may eventually be light years ahead of traditional acne therapies,” the statement reads. "... Until more is known, laser and light therapies offer an alternative for individuals whose acne has not responded to traditional acne therapies.”

    California dermatologist Wendy Roberts, MD, has used laser and light to treat acne for the past three years.

    She considers the treatments highly effective but says the new study did little to convince her that adding suction improves outcomes.

    Roberts is an assistant clinical professor of medicine at Loma Linda University Medical School, and she practices in Rancho Mirage.

    “This was not a very rigorously done study, “ she tells WebMD. “There was no way to tell if the improvements were due to the light treatments alone.”

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