Zrinka Bukvić-Mokoš

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La sers in Der ma tol ogy: Two-Year Ex pe ri ence at Uni ver sityDe part ment of Der ma tol ogy and Venereology, ZagrebUni ver sity Hos pi tal Cen ter, Zagreb, CroatiaThe Cen ter for La ser Ther apy in Cos metic Der -ma tol ogy was es tab lished at De part ment of Der ma -tol ogy and Venerology, Zagreb Uni ver sity Hos pi talCen ter in Oc to ber 2002. Al most all in di ca tions in cu -ta ne ous la ser sur gery are treated by four trainedder ma tol o gists us ing five different laser systems.Di ode pumped fre quency-dou bled solid state(Nd:YVO4) la ser emits green light at a wave lengthof 532 nm and there fore tar gets intravascularoxyhemoglobin to ef fect de struc tion of var i ous vas -cu lar le sions. This la ser is in tended for treat ment ofthe fol low ing cu ta ne ous le sions: telangiectasias,spi der nevi, se nile angiomas, angiokeratomas, portwine stains and some pig mented le sions such aslentigines. To date we have suc cess fully per formedmore than 650 treat ments us ing this la ser fordifferent indications.Car bon di ox ide la ser emits la ser ra di a tion at awave length of 10 600 nm. It can be mod i fied as acon tin u ous wave, superpulsed or pulsed la ser sys -tem, which makes it better adapted for cu ta ne ousla ser sur gery be cause of the abil ity to ef fect con -trolled tis sue ab la tion with lim ited coagulative ne -cro sis of nonintended neigh bor ing struc tures. Wehave used this la ser for treat ment of more than 500skin le sions which in cluded fibromas, syringomas,plane warts, com mon warts, seborrheic keratosesand hypertrophic scars.Er bium:YAG la ser pro duces a la ser beam of2940 nm wave length, which is al most com pletelyab sorbed by cu ta ne ous wa ter. It is in di cated for co -ag u la tion, va por iza tion or ab la tion of dif fer ent skinle sions such as acne scars, syringomas, wrin kles(skin re sur fac ing), adenoma sebaceum, hy per tro -phic scars and xanthelasmas. As this la ser sys temal lows su per fi cial ab la tion of the skin with min i malther mal ef fect, ex cel lent con trol of the depth of ab la -tion is en abled. About 140 treat ments have beenperformed with this laser with excellent results.Q-switched ruby la ser is a la ser sys tem whichop er ates at a wave length of 694 nm in the dark redrange, al low ing for harm less re moval of pig mentedle sions or tat toos by way of se lec tive photothermo -ly sis. We have ob tained very good re sults in re mov -ing black, blue and green tat toos, as well as in treat -ing lentigines and ephelides. Since there is a sig nif i -cant in crease in the num ber of peo ple look ing for aharm less tech nique to rid them of such un pleas antskin le sions, we have car ried out more than 1200treat ments with this laser system.A pulsed di ode 810 nm la ser sys tem is ef fec tivefor hair re moval and treat ment of some vas cu lar le -sions such as ve nous lake, phlebectases and he -man gio mas. The ap pli ca tion of this la ser has beenshown to ex tend the de lay in hair growth in bothwomen and men. In te grated cool ing de vice en ables cool ing of the skin to pre vent un wanted side ef fects. Ex cel lent re sults have been ob served af ter morethan 1000 treatments at our Center.Since la ser ther apy is now con sid ered to be thefirst line treat ment for nu mer ous skin le sions, es tab -lish ing the Cen ter at our De part ment has im provedther a peu tic op tions for var i ous skin conditions.Zrinka Bukviæ-Mokos, MD, MSc314Acta Dermatovenerol Croat 2004;12(4):314-318 NEWS AND COMMENTS

Lasers in Dermatology: Two-Year Experience at University Department of Dermatology and Venereology, Zagreb University HospitalCenter, Zagreb, Croatia

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