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Effective Treatment of Leg Vein Telangiectasia with a New 940 nm Diode Laser


  • P. Kaudewitz, MD, W. Klövekorn, MD, and W. Rother, PhD have indicated no significant interest with commercial supporters.

Address correspondence and reprint requests to: Peter Kaudewitz, MD, Department of Dermatology, Ludwig-Maximilians-University Munich, Frauenlobstrasse 9-11, D-80337 Muenchen, Germany.


Background. A variety of lasers have been used in an attempt to treat leg vein telangiectasia

Objective. To evaluate the feasibility of a new 940 nm diode laser for the treatment of leg vein telangiectasia.

Methods. Thirty-one patients with leg vein telangiectasia were treated with a diode laser; 26 of these with 940 nm, 300–350 J/cm2, 40–70 msec, 1.0 mm handpiece, one pass, and 5 of these with 940 nm, 815 J/cm2, 50 msec, 0.5 mm handpiece, one pass. Each subject had three treatments of the same site at 4-week intervals. Photographs taken before and 4 weeks after the last treatment were evaluated by two independent observers for vessel clearance.

Results. In those 26 patients treated with a fluence of 300–350 J/cm2, a vessel clearance of greater than 50% was achieved in 20 patients (76%), 12 of these patients had clearance rates greater than 75%. A clearance rate of less than 50% was obtained in six patients, with three of these patients showing responses of less than 25%. In five patients treated with a fluence of 815 J/cm2 a clearance rate of more than 75% was observed.

Conclusions. In this preliminary study a 940 nm diode laser was shown to be safe and effective for the treatment of leg vein telangiectasia.