New microwave-based device zaps hyperhidrosis

June 1, 2012

"A new microwave-based device is achieving long-lasting results in treating hyperhidrosis, said Suzanne L. Kilmer, M.D., at this year's MauiDerm: Advances in Cosmetic and Medical Dermatology. Approved for primary axillary hyperhidrosis in January 2011, the miraDry System (Miramar Labs) essentially kills targeted sweat glands with microwave energy."

Key Points

Approved for primary axillary hyperhidrosis in January 2011, the miraDry System (Miramar Labs) essentially kills targeted sweat glands with microwave energy, says Dr. Kilmer, founding director of the Laser and Skin Surgery Center of Northern California and associate clinical professor of dermatology at the University of California, Davis.

In the device's pivotal clinical trial, in which Dr. Kilmer was an investigator, she says that after two treatments, 89 percent of patients experienced a significant decrease in hyperhidrosis disease severity scale (HDSS) scores (Glaser DA, Coleman WP 3rd, Fan LK, et al. Dermatol Surg. 2012;38(2):185-191. Epub 2012 Jan 30).

To date, 90 percent of patients have needed two treatments, Dr. Kilmer says. A few patients have required three treatments. She says that changing the treatment interval and refining the miraDry software to allow more precise overlapping of passes have resulted in fewer patients needing more than the recommended two treatments.