Fractional photothermolysis: current and future applications

Area of Science:

• Dermatology
• Laser Medicine
• Aesthetic Surgery

Background:

• Ablative lasers (CO2, Er:YAG) are effective for photoaging but cause significant adverse effects.
• Nonablative lasers have fewer side effects but limited efficacy.
• Fractional photothermolysis (FP) offers a novel approach to laser skin treatment.

Purpose of the Study:

• To evaluate fractional photothermolysis (FP) as a treatment for various dermatologic conditions.
• To compare the efficacy and adverse effects of FP with traditional ablative and nonablative lasers.
• To highlight the advantages of FP in terms of patient downtime and cosmetic application.

Main Methods:

• Utilizes fractional photothermolysis (FP) to create microscopic thermal zones (MTZs) in the skin.
• Maintains the integrity of the stratum corneum, acting as a natural bandage.
• Requires multiple treatment sessions for optimal results.

Main Results:

• FP demonstrates significant improvement in conditions like facial rhytides, acne scars, surgical scars, melasma, and photodamaged skin.
• Minimal downtime and mild erythema allow immediate cosmetic application post-treatment.
• FP avoids the significant adverse effects associated with ablative laser devices.

Conclusions:

• Fractional photothermolysis (FP) provides an effective and safe alternative for treating photoaging and other dermatologic concerns.
• The intact stratum corneum in FP minimizes downtime and adverse effects, enhancing patient tolerance.
• FP is a versatile treatment applicable to all body areas for a range of skin conditions.