Flash-lamp pulsed-dye laser (FPDL) is a nonablative technology, typically used in vascular malformation therapy due to its specificity for hemoglobin. FPDL treatments were performed in a large group of patients with persistent and/or recalcitrant different dermatological lesions with cutaneous microvessel involvement. In particular, 149 patients (73 males and 76 females) were treated. They were...

BACKGROUND AND OBJECTIVE Pulsed dye laser (PDL) treatment of cutaneous vascular lesions is associated with variable and unpredictable efficacy. Thus, alternative treatment modalities are needed. Previous in vitro and in vivo studies have demonstrated enhanced selective vascular destruction with benzoporphyrin derivative (BPD) monoacid ring A photodynamic therapy (PDT) followed immediately by PD...

An efficient method for generation of high energy pulsed ir light between 0.9 and 1.5 ltm is described. The technique uses difference frequency mixing of pulsed, visible dye and Nd:YAG laser light in a 10 mm long BBO crystal. Quantum efficiencies of up to 23% and ir pulse energies up to 4.5 mJ are demonstrated. The low shot-to-shot fluctuations of difference frequency generation in BBO make thi...

Polarization effect of the pulsed pumping laser on the lasing characteristics of the dye-doped right-handed cholesteric liquid crystal (CLC) is studied at different incident angles. At a small incident angle (<18 ), the CLC laser performance is independent of the polarization state of the pumping laser. As the incident angle exceeds 18 , the CLC laser emission strongly depends on the polarizati...

OBJECTIVE Flash lamp pulsed dye laser (FPDL) was used in a selected group of patients with hypertrophic scars and keloids. Objective of the study was to assess the efficacy on a large number of cases. BACKGROUND DATA FPDL is a nonablative technology, typically used in vascular malformation therapy because of its specificity for hemoglobin. METHODS A total of 59 patients (33 males and 26 fem...

BACKGROUND Scars represent the visible sequelae of trauma, injury, burn, or surgery. They may induce distress in the patient because of their aesthetically unpleasant appearance, especially if they are excessively raised, depressed, wide, or erythematous. They may also cause the patient symptoms of pain, tightness, and pruritus. Numerous products are marketed for scar prevention or improvement,...

introduction: klippel–trenaunay syndrome (kts) is a rare congenital mesodermal abnormality characterized by varicose veins, cutaneous capillary malformation, as well as bone and soft tissue hypertrophy. case report: a 2-week-old female infant presented to our clinic because of vascular nevus and progressive enlargement of her right extremities and trunk since birth. the patient was treated with...