Background: The flashlamp-pumped dye laser is considered the treatment of choice for vascular lesions including port-wine stains. However, this treatment is associated with an intensive postoperative purpura and considerable pain.
Objective: We tested a newly developed laser device with a 532-nm neodymium:YAG laser with variable pulse widths between 2 and 10 ms.
Methods: Forty-two consecutive patients from our laser clinics were treated with the new laser system delivering energy through a chilled tip by means of circulating water (cooling temperature was between 4 and 5.5 degreesC). Forty of them had been pre-treated with an argon laser and an argon-pumped dye laser.
Results: Out of the 42 patients, 1 patient had a complete clearing, 11 had an excellent result (more than 80% clearing), 21 patients had a good result (51-75% clearing), weak responses were seen in 9 patients. Significant success was already seen after 1 or 2 treatments. Side effects were rare. There was no purpura after treatment. Local anesthesia was only applied in 6 out of 42 patients.
Conclusion: The variable pulse width frequency doubled neodymium:YAG laser seems to be an alternative to the flashlamp-pumped dye laser and deserves to be investigated in comparative trials.