Combined 585nm Pulsed-Dye and 1,064nm Nd:YAG Lasers for the Treatment of Basal Cell Carcinoma

Background and ObjectiveBasal cell carcinomas (BCCs) have supporting vasculature that serves as a target for vascular selective lasers. The objective of this study was to determine the effect of repeated treatment with a combined 585nm pulsed dye laser (PDL) and 1,064nm Neodymium Yttrium Aluminum Garnet (Nd:YAG) laser on BCCs of superficial and nodular subtypes of varying diameters. Study Design/Materials and MethodsTen subjects with 13 biopsy-proven BCCs received four combined PDL and Nd:YAG at treatments 2-4 week intervals. None of the BCCs met the criteria for Mohs micrographic surgery. The tumor and 4mm of peripheral skin were treated using standardized parameters delivered with a 7mm spot with 10% overlap. The treated area was excised and evaluated histologically for residual tumor. The primary study endpoint was histologic clearance of tumor. The secondary study endpoint was blinded investigator assessment of clinical endpoint and adverse effects. ResultsApproximately half of all tumors showed a complete response to four combined PDL and Nd:YAG treatments (n=7/12, 58%). When stratified by size, 75% of all tumors <1cm in diameter (n=6/8) showed complete response. Tumor histologic types among the complete responders included superficial and nodular BCCs. All subjects with incompletely responding BCCs were on various forms of anticoagulation, which we hypothesize, may inhibit laser-mediated thrombosis necessary for the clinical effect. Blinded investigator assessment suggests that biopsy related erythema improves with subsequent laser treatments. ConclusionsCombined PDL and Nd:YAG laser is an effective means of reducing tumor burden in patients with BCC and may be a promising, emerging alternative therapy. Factors influencing treatment response includes the concomitant use of anticoagulation. Further studies are needed to investigate and optimize the utility of this treatment protocol. Lasers Surg. Med. 46:1-7, 2014. (c) 2013 Wiley Periodicals, Inc.