Resurfacing of Different Types of Facial Acne Scar with Short-Pulsed, Variable-Pulsed, and Dual-Mode Er

YAG Laser

Sang Hyuk Woo, Jae Hong Park, Young Chul Kye

Research output: Contribution to journalArticle

40 Citations (Scopus)

Abstract

BACKGROUND. Laser skin resurfacing has become a popular therapeutic modality for the correction of acne scars, but it is not always effective in all types of acne scars. OBJECTIVE. To evaluate the clinical effects of resurfacing with the short-pulsed Er:YAG laser, the variable-pulsed Er:YAG laser, and the dual-mode Er:YAG laser for each type of facial acne scars. METHODS. One hundred fifty-eight patients with facial acne scars were included in this study. Eighty three patients (18 deep boxcar scars, 8 ice-pick scars, 11 rolling scars, and 46 shallow boxcars) were treated with the 350-μs short-pulsed Er:YAG laser at the setting of 12.5 to 15%/cm2. Thirty-five patients (8 deep boxcar scars, 4 ice-pick scars, 12 rolling scars, and 11 shallow boxcars) were treated with the variable-pulsed Er:YAG laser at the setting of 7.0 to 7.5%/cm2 and 7-ms pulse duration. Forty patients (8 deep boxcar scars, 4 ice-pick scars, 17 rolling scars, and 11 shallow boxcars) were treated with the dual-mode Er:YAG laser with 350-μ ablation mode at 17.5%/cm2 and 8-ms coagulation mode at 3.15%/cm 2. Facial photographs were obtained at baseline and at 2- to 4-week intervals postoperatively. Acne scars were classified into four types, and clinical improvements of facial acne scars were evaluated. RESULTS. Resurfacing with the short-pulsed Er:YAG laser shows good to excellent results for ice-pick and shallow boxcar scars, fair to good for deep boxcar scars, and poor to fair for rolling scars. Resurfacing with the variable-pulsed laser shows good to excellent results for ice-pick and shallow boxcar scars, fair to good for deep boxcar scars, and good for rolling scars. Resurfacing with the dual-mode laser shows good to excellent results for ice-pick, shallow, and rolling scars and produced good results on deep boxcar scars. CONCLUSION. Shallow boxcar and ice-pick scars can be treated successfully using any types of Er:YAG laser. In cases of rolling and deep boxcar scars, however, Er:YAG laser with a long-pulse duration for a thermal effect is needed for successful treatment.

Original languageEnglish
Pages (from-to)488-493
Number of pages6
JournalDermatologic Surgery
Volume30
Issue number4 I
DOIs
Publication statusPublished - 2004 Apr 1

Fingerprint

Solid-State Lasers
Acne Vulgaris
Cicatrix
Ice
Lasers

ASJC Scopus subject areas

  • Surgery
  • Dermatology

Cite this

Resurfacing of Different Types of Facial Acne Scar with Short-Pulsed, Variable-Pulsed, and Dual-Mode Er : YAG Laser. / Woo, Sang Hyuk; Park, Jae Hong; Kye, Young Chul.

In: Dermatologic Surgery, Vol. 30, No. 4 I, 01.04.2004, p. 488-493.

Research output: Contribution to journalArticle

@article{36d423d6fe3b4280bdce916186e800c0,
title = "Resurfacing of Different Types of Facial Acne Scar with Short-Pulsed, Variable-Pulsed, and Dual-Mode Er: YAG Laser",
abstract = "BACKGROUND. Laser skin resurfacing has become a popular therapeutic modality for the correction of acne scars, but it is not always effective in all types of acne scars. OBJECTIVE. To evaluate the clinical effects of resurfacing with the short-pulsed Er:YAG laser, the variable-pulsed Er:YAG laser, and the dual-mode Er:YAG laser for each type of facial acne scars. METHODS. One hundred fifty-eight patients with facial acne scars were included in this study. Eighty three patients (18 deep boxcar scars, 8 ice-pick scars, 11 rolling scars, and 46 shallow boxcars) were treated with the 350-μs short-pulsed Er:YAG laser at the setting of 12.5 to 15{\%}/cm2. Thirty-five patients (8 deep boxcar scars, 4 ice-pick scars, 12 rolling scars, and 11 shallow boxcars) were treated with the variable-pulsed Er:YAG laser at the setting of 7.0 to 7.5{\%}/cm2 and 7-ms pulse duration. Forty patients (8 deep boxcar scars, 4 ice-pick scars, 17 rolling scars, and 11 shallow boxcars) were treated with the dual-mode Er:YAG laser with 350-μ ablation mode at 17.5{\%}/cm2 and 8-ms coagulation mode at 3.15{\%}/cm 2. Facial photographs were obtained at baseline and at 2- to 4-week intervals postoperatively. Acne scars were classified into four types, and clinical improvements of facial acne scars were evaluated. RESULTS. Resurfacing with the short-pulsed Er:YAG laser shows good to excellent results for ice-pick and shallow boxcar scars, fair to good for deep boxcar scars, and poor to fair for rolling scars. Resurfacing with the variable-pulsed laser shows good to excellent results for ice-pick and shallow boxcar scars, fair to good for deep boxcar scars, and good for rolling scars. Resurfacing with the dual-mode laser shows good to excellent results for ice-pick, shallow, and rolling scars and produced good results on deep boxcar scars. CONCLUSION. Shallow boxcar and ice-pick scars can be treated successfully using any types of Er:YAG laser. In cases of rolling and deep boxcar scars, however, Er:YAG laser with a long-pulse duration for a thermal effect is needed for successful treatment.",
author = "Woo, {Sang Hyuk} and Park, {Jae Hong} and Kye, {Young Chul}",
year = "2004",
month = "4",
day = "1",
doi = "10.1111/j.1524-4725.2004.30161.x",
language = "English",
volume = "30",
pages = "488--493",
journal = "Dermatologic Surgery",
issn = "1076-0512",
publisher = "Wiley-Blackwell",
number = "4 I",

}

TY - JOUR

T1 - Resurfacing of Different Types of Facial Acne Scar with Short-Pulsed, Variable-Pulsed, and Dual-Mode Er

T2 - YAG Laser

AU - Woo, Sang Hyuk

AU - Park, Jae Hong

AU - Kye, Young Chul

PY - 2004/4/1

Y1 - 2004/4/1

N2 - BACKGROUND. Laser skin resurfacing has become a popular therapeutic modality for the correction of acne scars, but it is not always effective in all types of acne scars. OBJECTIVE. To evaluate the clinical effects of resurfacing with the short-pulsed Er:YAG laser, the variable-pulsed Er:YAG laser, and the dual-mode Er:YAG laser for each type of facial acne scars. METHODS. One hundred fifty-eight patients with facial acne scars were included in this study. Eighty three patients (18 deep boxcar scars, 8 ice-pick scars, 11 rolling scars, and 46 shallow boxcars) were treated with the 350-μs short-pulsed Er:YAG laser at the setting of 12.5 to 15%/cm2. Thirty-five patients (8 deep boxcar scars, 4 ice-pick scars, 12 rolling scars, and 11 shallow boxcars) were treated with the variable-pulsed Er:YAG laser at the setting of 7.0 to 7.5%/cm2 and 7-ms pulse duration. Forty patients (8 deep boxcar scars, 4 ice-pick scars, 17 rolling scars, and 11 shallow boxcars) were treated with the dual-mode Er:YAG laser with 350-μ ablation mode at 17.5%/cm2 and 8-ms coagulation mode at 3.15%/cm 2. Facial photographs were obtained at baseline and at 2- to 4-week intervals postoperatively. Acne scars were classified into four types, and clinical improvements of facial acne scars were evaluated. RESULTS. Resurfacing with the short-pulsed Er:YAG laser shows good to excellent results for ice-pick and shallow boxcar scars, fair to good for deep boxcar scars, and poor to fair for rolling scars. Resurfacing with the variable-pulsed laser shows good to excellent results for ice-pick and shallow boxcar scars, fair to good for deep boxcar scars, and good for rolling scars. Resurfacing with the dual-mode laser shows good to excellent results for ice-pick, shallow, and rolling scars and produced good results on deep boxcar scars. CONCLUSION. Shallow boxcar and ice-pick scars can be treated successfully using any types of Er:YAG laser. In cases of rolling and deep boxcar scars, however, Er:YAG laser with a long-pulse duration for a thermal effect is needed for successful treatment.

AB - BACKGROUND. Laser skin resurfacing has become a popular therapeutic modality for the correction of acne scars, but it is not always effective in all types of acne scars. OBJECTIVE. To evaluate the clinical effects of resurfacing with the short-pulsed Er:YAG laser, the variable-pulsed Er:YAG laser, and the dual-mode Er:YAG laser for each type of facial acne scars. METHODS. One hundred fifty-eight patients with facial acne scars were included in this study. Eighty three patients (18 deep boxcar scars, 8 ice-pick scars, 11 rolling scars, and 46 shallow boxcars) were treated with the 350-μs short-pulsed Er:YAG laser at the setting of 12.5 to 15%/cm2. Thirty-five patients (8 deep boxcar scars, 4 ice-pick scars, 12 rolling scars, and 11 shallow boxcars) were treated with the variable-pulsed Er:YAG laser at the setting of 7.0 to 7.5%/cm2 and 7-ms pulse duration. Forty patients (8 deep boxcar scars, 4 ice-pick scars, 17 rolling scars, and 11 shallow boxcars) were treated with the dual-mode Er:YAG laser with 350-μ ablation mode at 17.5%/cm2 and 8-ms coagulation mode at 3.15%/cm 2. Facial photographs were obtained at baseline and at 2- to 4-week intervals postoperatively. Acne scars were classified into four types, and clinical improvements of facial acne scars were evaluated. RESULTS. Resurfacing with the short-pulsed Er:YAG laser shows good to excellent results for ice-pick and shallow boxcar scars, fair to good for deep boxcar scars, and poor to fair for rolling scars. Resurfacing with the variable-pulsed laser shows good to excellent results for ice-pick and shallow boxcar scars, fair to good for deep boxcar scars, and good for rolling scars. Resurfacing with the dual-mode laser shows good to excellent results for ice-pick, shallow, and rolling scars and produced good results on deep boxcar scars. CONCLUSION. Shallow boxcar and ice-pick scars can be treated successfully using any types of Er:YAG laser. In cases of rolling and deep boxcar scars, however, Er:YAG laser with a long-pulse duration for a thermal effect is needed for successful treatment.

UR - http://www.scopus.com/inward/record.url?scp=1942466603&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=1942466603&partnerID=8YFLogxK

U2 - 10.1111/j.1524-4725.2004.30161.x

DO - 10.1111/j.1524-4725.2004.30161.x

M3 - Article

VL - 30

SP - 488

EP - 493

JO - Dermatologic Surgery

JF - Dermatologic Surgery

SN - 1076-0512

IS - 4 I

ER -