Ostovari N et al. - The findings of this study showed the net positive effect of Q-switched Nd:YAG laser, either 532 nm or 1064 nm, in pigment reduction of macular amyloidosis patches, but the 532-nm laser was more effective than 1064 laser. Methods
Objective was to determine the efficiency of Q-switched Nd:YAG laser in reducing the pigmentations due to skin macular amyloidosis
20 subjects with macular amyloidosis were treated with Q-switched Nd:YAG laser: 532 nm in one part and with 1064 nm in another part of their plaques
Assessment of efficiency was done by colorimetric scores
And also by digital photographs before laser therapy and 8 wks after treatment
Results
Two lasers were effective in reducing the degree of macular amyloidosis patches pigmentation
532 nm was meaningfully more effective than 1064 nm
Photograph-based analysis showed that 90% of cases treated by 532 nm had good or very good response
In 1064 nm-treated patches, 60% of cases had the good or very good response
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