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Arch Dermatol. 2004 Nov;140(11):1337-41.

Treatment of atrophic facial acne scars with the 1064-nm Q-switched Nd:YAG laser: six-month follow-up study.

Author information

1
DermSurgery Associates, Department of Dermatology, University of Texas Medical School, Houston 77030, USA. pmfriedman@dermsurgery.org

Abstract

OBJECTIVES:

To quantitatively assess improvement in acne scarring after a series of nonablative laser treatments and to determine efficacy at 1-, 3-, and 6-month follow-up after treatment.

DESIGN:

Before-after trial of consecutively selected patients.

SETTING:

Private practice at the Laser and Skin Surgery Center of New York, New York.

PATIENTS:

Eleven patients with mild to moderate atrophic acne scarring were treated.

INTERVENTIONS:

A 3-dimensional optical profiling imaging system was used to assess skin topography before, during, and after treatment. Patients were treated with a 1064-nm Q-switched Nd:YAG laser and reassessed after 3 treatment sessions and at 1, 3, and 6 months after the fifth treatment session.

MAIN OUTCOME MEASURES:

The skin roughness analysis was quantified at baseline and at each follow-up interval. Pain, erythema, and petechiae formation were assessed on 3-point scales.

RESULTS:

At midtreatment (1 month after the third treatment session), an 8.9% improvement in roughness analysis was seen. This improvement increased to 23.3%, 31.6%, and 39.2% at 1, 3, and 6 months after the fifth treatment, respectively. Patients reported mild to moderate pain with treatment. The only adverse effects noted were transient erythema and mild pinpoint petechiae.

CONCLUSIONS:

Treatment with the nonablative 1064-nm Q-switched Nd:YAG laser results in significant quantitative improvements in skin topography in patients with mild to moderate atrophic acne scars. Continued incremental improvements were noted at 1-, 3-, and 6-month follow-up, indicating ongoing dermal collagen remodeling after the treatment.

PMID:
15545542
DOI:
10.1001/archderm.140.11.1337
[Indexed for MEDLINE]

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