研究目的
Investigating the efficacy and safety of neodymium‐doped yttrium aluminum garnet (Nd:YAG) laser delivered through a tilted angle for the treatment of nodular classic Kaposi's sarcoma (KS) in elderly patients.
研究成果
The study concludes that long-pulse Nd:YAG laser therapy delivered through a tilted angle is an effective, safe, and comfortable treatment option for nodular classic KS, providing excellent functional and cosmetic results with minimal discomfort and no recurrences observed at 12-month follow-up.
研究不足
The study's limitations include its small sample size (nine patients) and the potential for recurrence of KS nodules, which may require further treatment. The technique's efficacy in larger or more aggressive lesions was not explored.
1:Experimental Design and Method Selection:
The study involved treating 81 KS nodules in nine patients using Nd:YAG laser with specific parameters (5–7 mm spot, 140–200 J/cm2 fluence, 5 ms triple pulse with 10 ms delay) delivered at a tilted angle of 30° to 60° to target feeding vessels and minimize tissue damage.
2:Sample Selection and Data Sources:
Patients with biopsy-proven classic KS and nodules ranging in size from
3:5 to 3 cm were selected. Exclusion criteria included any additional regional or systemic treatment in the past 3 months. List of Experimental Equipment and Materials:
Nd:YAG laser (Synchro FT?; DEKA‐Mela, Calenzano, FI, Italy), topical keratolytics containing 20% salicylic acid for pretreatment.
4:Experimental Procedures and Operational Workflow:
Lesions were treated circumferentially at their periphery with the laser beam obliquely and tangentially oriented. Patients were reevaluated at 4-week intervals, with additional sessions if necessary.
5:Data Analysis Methods:
Treatment outcome was evaluated through clinical photographs, videodermatoscopy, and ultrasound scanning before and after treatment, and at monthly follow-up visits.
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