INTEREST OF 532 rm WAVE-LENGTH TO TREAT PORT WINE STAINS

Successful treatment of adenoma sebaceum with the potassium titanyl phosphate laser

“…The 532 nm wavelength, however, corresponds to another absorption peak and has thus been used successfully to treat portwine stains and tattoos. [15][16] The unique advantage of the KTP laser is that its pulse width can be varied between 1 and 10 msec, thus enabling it to match the thermal relaxation times of vessels with varying diameters, with the consequent maximal destruction of these vessels and surrounding fibrous tissue. Indeed, it has been calculated that the optimum pulse width for the treatment of port-wine stains is between 1 and 10 msec, [17][18] such that it seems likely that the also very vascular angiofibromas will respond similarly.…”