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Comparative study between the efficacy of fractional CO2 laser, Q-switched Nd:YAG laser (1064 nm), and both types in treatment of keratosis pilaris
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Comparative study between the efficacy of fractional CO2 laser, Q-switched Nd:YAG laser (1064 nm), and both types in treatment of keratosis pilaris
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Comparative study between the efficacy of fractional CO2 laser, Q-switched Nd:YAG laser (1064 nm), and both types in treatment of keratosis pilaris
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Journal Article
Comparative study between the efficacy of fractional CO2 laser, Q-switched Nd:YAG laser (1064 nm), and both types in treatment of keratosis pilaris
2020
Overview
The aim of this study was to assess and compare the efficacy of fractional CO2 laser, Q-switched Nd:YAG laser (1064 nm), and their combined use in treatment of keratosis pilaris. The study included twenty female patients. For each patient, three areas were randomly assigned to treatment by either fractional CO2 laser (area A) or Q-switched laser (1064 nm) (area C), or both types of laser (area B). All patients were assessed by digital photography at baseline and 1 month after the last session. Assessment was done by two non-blinded and two blinded investigators (blinded investigators do not know which area is treated with which machine and non-blinded knows). Patients reported the degree of satisfaction or any adverse effects also after 1 month from the last session. The three treatment modalities led to overall improvement in the KP lesions. According to patients’ score and investigator two, area B showed statistically significant improvement compared to areas A and C (
p
=0.001 and
p
=0.039, respectively). The first blinded investigators’ assessment revealed that there was statistically significant improvement in area C compared to A and B (
p
= 0.023). The assessment of both investigator one and the second blinded investigator revealed that there was improvement in the three areas with no statistically significant difference between them. Both fractional CO2 and Q-switched Nd:YAG laser (1064 nm) proved to be safe and effective in the treatment of keratosis pilaris regarding not only pigmentation but also follicular prominence; their combination may have an additive effect.
