D&PS

Daily Issue (JAN 15. 2021)

LASER in Clinical Medicine
#15-6. Long-pulsed Alexandrite Laser

Liver spots are irradiated with the parameters of pulse duration at 0.3 to 1ms, spot size at 3mm, fluence at 30~80J/cm2, and pre & post-cooling because there are many cases where they have thicker lesions and weaker chromophores than lentigo. Once a burst of sound (‘tic’) is heard during irradiation or a lesion turns gray-white, you can go on to treatment of another lesion. Especially for thick liver spots, it is advised to first check if there is any lesion left after crusts peel away and subsequently decide whether to enter the secondary treatment, instead of trying to remove them only at a time, in order to reduce the likelihood of side effects such as red marks and pigmentation and shorten the recovery period.
For flat warts or small warts, each of lesions is irradiated with the parameters of pulse duration at 0.3ms, spot size at 2mm, and fluence at…….

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