Treatment of benign and atypical nevi with the normal-mode ruby laser and the Q-switched ruby laser: clinical improvement but failure to completely eliminate nevomelanocytes.
Treatment of benign and atypical nevi with the normal-mode ruby laser and the Q-switched ruby laser: clinical improvement but failure to completely eliminate nevomelanocytes.
复制标题
使用正常模式红宝石激光和 Q 开关红宝石激光治疗良性和非典型痣:临床改善,但未能完全消除痣黑素细胞。
作者:
Daniella Duke;H. Randolph Byers;A. Sober;R. Anderson;J. Grevelink
OBJECTIVE
To evaluate the effect of normal-mode and Q-switched ruby laser light (694 nm) on nevomelanocytes of benign, atypical, and congenital nevi.
DESIGN
Half of the lesion of each of 31 nevi was treated with either the Q-switched ruby laser or the normal-mode ruby laser or both; the other half of the lesion was covered with aluminum foil and was not treated.
SETTING
A university-affiliated, hospital-based laser center.
PATIENTS
Sixteen patients with a total of 31 melanocytic nevi were enrolled in the study.
INTERVENTIONS
All nevi were evaluated by at least 2 dermatologists to assess the degree of clinical atypia. Photographs were taken before and immediately after treatment and at each follow-up visit. The digital imaging system was used to evaluate the number of melanocytes in a measured length of basement membrane zone.
MAIN OUTCOME MEASURE
Three individual readings (number of melanocytes per unit length) were taken on both the control and treated halves and then compared to quantitate treatment effect. All analyses used averages from 3 measurements. A Student paired t test was used to compare the treated and untreated sides.
RESULTS
Sixteen (52%) of the nevi showed a clinically visible decrease in pigment on the treatment side at the 4-week follow-up visit.
CONCLUSION
No lesions had complete histologic removal of all nevomelanocytes. Therefore, 1 or 2 laser treatments are not sufficient to cause complete removal of a lesion either clinically or histologically.
影响因子:
13.8
作者:
Taylor,CR;Flotte,TJ;Gange,RW;Anderson,RR
通讯作者:
Anderson,RR
影响因子:
39.2
作者:
Greene,MH;ClarkJr,WH;Tucker,MA;Kraemer,KH;Elder,DE;Fraser,MC
通讯作者:
Fraser,MC
DOI:
--
发表时间:
1992
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Maytin,EV
通讯作者:
Maytin,EV