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Fractional Laser (fractional + laser)

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Medical Sciences100%

Terms modified by Fractional Laser

  • fractional laser treatment
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    Selected Abstracts

    Treatment of Surgical Scars with Nonablative Fractional Laser Versus Pulsed Dye Laser: A Randomized Controlled Trial

    DERMATOLOGIC SURGERY, Issue 8 2009
    EMILY TIERNEY MD
    OBJECTIVE Comparison of the efficacy of nonablative fractional laser (NAFL) and the V-beam pulsed dye laser (PDL) for improvement of surgical scars. METHODS A randomized blinded split-scar study. Fifteen scars in 12 patients were treated a minimum of 2 months after Mohs surgery. Patients were treated on half of the scar with a 1,550-nm NAFL and on the contralateral half with the 595 nm PDL. MAIN OUTCOME MEASURE(S) A nontreating physician investigator evaluated the outcome of the scar in terms of scar dyspigmentation, thickness, texture, and overall cosmetic appearance (5-point grading scale). RESULTS After a series of four treatments at 2-week intervals, greater improvements were noted in the portion of surgical scars treated with NAFL (overall mean improvement 75.6%, range 60,100%, vs. PDL, 53.9%, range 20,80%; p<.001). CONCLUSION These data support the use of NAFL as a highly effective treatment modality for surgical scars, with greater improvement in scar appearance than with PDL. It is likely that the greater depth of penetration and focal microthermal zones of injury with NAFL, inducing neocollagenesis and collagenolysis, account for its greater improvement in scar remodeling. These encouraging results lead us to recommend that NAFL be added to the current treatment armamentarium for surgical scars. [source]

    Clinical Trial of Dual Treatment with an Ablative Fractional Laser and a Nonablative Laser for the Treatment of Acne Scars in Asian Patients

    DERMATOLOGIC SURGERY, Issue 7 2009
    SANGEUN KIM MD
    BACKGROUND Many methods have been proposed for the treatment of acne scars, with variable cosmetic results. Nonablative skin resurfacing is one method that has been proposed. Because of a need for more noticeable clinical improvements, the ablative fractional laser was recently introduced. OBJECTIVE To reduce complications and improve the results of ablative fractional laser resurfacing by combining this treatment of acne scars with nonablative lasers. METHODS A series of 20 patients (skin phototypes IV,V) with atrophic facial acne scars were randomly divided into two groups that received three successive monthly treatments with an ablative fractional laser using high (group A) and low (group B) energy on one facial half and an ablative fractional laser with low energy plus a nonablative resurfacing laser on the other facial half. Patients were evaluated using digital photography at each treatment visit and at 3 months postoperatively. Clinical assessment scores were determined at each treatment session and follow-up visit. RESULTS Although the use of the ablative fractional laser with high energy resulted in an improvement in patients' acne scars, the combination of ablative fractional laser resurfacing and nonablative laser resurfacing yielded the best results, as assessed in photographs as well as by the overall appearance of the acne scars. With the combination method, fewer complications were observed. [source]

    Treatment of Surgical Scars with Nonablative Fractional Laser Versus Pulsed Dye Laser: A Randomized Controlled Trial

    DERMATOLOGIC SURGERY, Issue 8 2009
    EMILY TIERNEY MD
    OBJECTIVE Comparison of the efficacy of nonablative fractional laser (NAFL) and the V-beam pulsed dye laser (PDL) for improvement of surgical scars. METHODS A randomized blinded split-scar study. Fifteen scars in 12 patients were treated a minimum of 2 months after Mohs surgery. Patients were treated on half of the scar with a 1,550-nm NAFL and on the contralateral half with the 595 nm PDL. MAIN OUTCOME MEASURE(S) A nontreating physician investigator evaluated the outcome of the scar in terms of scar dyspigmentation, thickness, texture, and overall cosmetic appearance (5-point grading scale). RESULTS After a series of four treatments at 2-week intervals, greater improvements were noted in the portion of surgical scars treated with NAFL (overall mean improvement 75.6%, range 60,100%, vs. PDL, 53.9%, range 20,80%; p<.001). CONCLUSION These data support the use of NAFL as a highly effective treatment modality for surgical scars, with greater improvement in scar appearance than with PDL. It is likely that the greater depth of penetration and focal microthermal zones of injury with NAFL, inducing neocollagenesis and collagenolysis, account for its greater improvement in scar remodeling. These encouraging results lead us to recommend that NAFL be added to the current treatment armamentarium for surgical scars. [source]

    Clinical Trial of Dual Treatment with an Ablative Fractional Laser and a Nonablative Laser for the Treatment of Acne Scars in Asian Patients

    DERMATOLOGIC SURGERY, Issue 7 2009
    SANGEUN KIM MD
    BACKGROUND Many methods have been proposed for the treatment of acne scars, with variable cosmetic results. Nonablative skin resurfacing is one method that has been proposed. Because of a need for more noticeable clinical improvements, the ablative fractional laser was recently introduced. OBJECTIVE To reduce complications and improve the results of ablative fractional laser resurfacing by combining this treatment of acne scars with nonablative lasers. METHODS A series of 20 patients (skin phototypes IV,V) with atrophic facial acne scars were randomly divided into two groups that received three successive monthly treatments with an ablative fractional laser using high (group A) and low (group B) energy on one facial half and an ablative fractional laser with low energy plus a nonablative resurfacing laser on the other facial half. Patients were evaluated using digital photography at each treatment visit and at 3 months postoperatively. Clinical assessment scores were determined at each treatment session and follow-up visit. RESULTS Although the use of the ablative fractional laser with high energy resulted in an improvement in patients' acne scars, the combination of ablative fractional laser resurfacing and nonablative laser resurfacing yielded the best results, as assessed in photographs as well as by the overall appearance of the acne scars. With the combination method, fewer complications were observed. [source]

    Non-ablative 1,550,nm fractional laser therapy versus triple topical therapy for the treatment of melasma: A randomized controlled split-face study,,

    LASERS IN SURGERY AND MEDICINE, Issue 7 2010
    Bas S. Wind MD
    Abstract Background Melasma is a uichronic, often relapsing skin disorder, with poor long-term results from all current therapies. Objective To assess efficacy and safety of non-ablative 1,550,nm fractional laser therapy (FLT) as compared to the gold standard, triple topical therapy (TTT). Study design Twenty-nine patients with melasma were included in a randomized controlled observer-blinded study with split-face design. Each side of the face was randomly allocated to either 4,5 non-ablative FLT sessions (15,mJ/microbeam, 14,20% coverage) or TTT (hydroquinone 5%, tretinoin 0.05%, triamcinolone acetonide 0.1% cream). TTT was applied once daily for 15 weeks until the last FLT session. After this last treatment, patients were asked to apply TTT twice weekly on both sides of the face during follow-up. Improvement of melasma was assessed by patient's global assessment (PGA), patient's satisfaction, physician's global assessment (PhGA), melanin index, and lightness (L -value) at 3 weeks, and at 3 and 6 months after the last treatment. Results Mean PGA and satisfaction were significantly lower at the FLT side (P<0.001). PhGA, melanin index, and L -value showed a significant worsening of hyperpigmentation at the FLT side. At the TTT side, no significant change was observed. At 6 months follow-up, most patients preferred TTT. Side effects of FLT were erythema, burning sensation, edema, and pain. Nine patients (31%) developed PIH after two or more laser sessions. Side effects of TTT were erythema, burning sensation, and scaling. Conclusions Given the high rate of postinflammatory hyperpigmentation, non-ablative 1,550,nm fractional laser at 15,mJ/microbeam is not recommendable in the treatment of melasma. TTT remains the gold standard treatment. Lasers Surg. Med. 42:607,612, 2010. © 2010 Wiley-Liss, Inc. [source]

    Comparison of a 1,550,nm Erbium:Glass fractional laser and a chemical reconstruction of skin scars (CROSS) method in the treatment of acne scars: A simultaneous split-face trial

    LASERS IN SURGERY AND MEDICINE, Issue 8 2009
    Hee Jung Kim MD
    Abstract Background and Objective Acne scarring is a common complication of acne but no effective single treatment modality has been developed. To compare the efficacy of 1,550,nm Er:Glass fractional laser and chemical reconstruction of skin scar (CROSS) method in the treatment of acne scars. Study Design/Materials and Methods A split-face trial was conducted in 20 patients (10 rolling, 10 icepick types) with acne scars. One side was treated with the 1,550,nm Er:Glass fractional laser three times with a 6-week interval. And the other side was treated with CROSS method two times every 12 weeks. Results Significant improvement was observed in both sides of the face. In rolling type, the objective and subjective improvement rates were significantly higher in the sides treated with laser than CROSS method. However, in icepick type, there were no statistically significant differences between the two treatment sides. In the laser sides, grades of pain were significantly higher than that of treated with CROSS method. However, downtimes and lasting days of erythema were significantly longer in the sides treated with CROSS method. Conclusion A 1,550,nm Er:Glass fractional laser and CROSS method are both well-tolerated and effective treatment options in the acne scars. However, there was a relatively small difference between the two treatment modalities. Therefore, dermatologists should consider the acne scar type to select the treatment options. Lasers Surg. Med. 41:545,549, 2009. © 2009 Wiley-Liss, Inc. [source]

    Clinical evaluation of a single-wavelength fractional laser and a novel multi-wavelength fractional laser in the treatment of photodamaged skin,

    LASERS IN SURGERY AND MEDICINE, Issue 6 2009
    Laurel Naversen Geraghty BA
    Abstract Background and Objectives Nonablative fractional lasers are well recognized for rejuvenating photoaged skin. We previously reported favorable outcomes with short follow-up after the use of 1,440-nm Nd:YAG laser energy used alone or in combination with a 1,320-nm laser to effect rejuvenation and wrinkle reduction. We now report longer follow-up data. Study Design/Materials and Methods Nineteen Caucasian subjects (average age 47±8.4; range 33,62) exhibiting mild-to-moderate photoaging of the face and neck were treated four times (average interval 18.1± 4.1 days; range 11,37 days) with the 1,440-nm Nd:YAG fractional laser (average fluence 3.7±0.3,J/cm2) or the 1,320/1,440-nm multiplex Nd:YAG fractional laser (1,320-nm average fluence 8.4±0.4,J/cm2; 1,440-nm average fluence 2.3±0.2,J/cm2). Outcomes were assessed by subjects and the treating physician using a quartile scale to evaluate skin tightening, surface texture, rhytids, dyschromia, erythema, and global appearance after 1, 3, and 6 months. Retroauricular punch biopsies from three patients were used to evaluate wound healing. Three patients withdrew from the study prior to evaluation, one missed the 1-month evaluation, and one missed the 6-month evaluation. Results Assessment by subjects and the treating physician revealed clinical improvement for all outcomes after 1, 3, and 6 months. The differences between the treatment groups were not statistically significant. Subjects demonstrated the greatest average 6-month improvements in surface texture and global skin appearance. Subjects treated with the multiplex laser reported more skin tightening than the group treated only with the 1,440-nm laser. Histological evaluation revealed wound healing within 10 days and significant neocollagenesis at 3 months. No adverse events were reported in any subject. Conclusion The 1,440-nm Nd:YAG and 1,320/1,440-nm multiplex Nd:YAG lasers safely and effectively produced improved surface texture, rhytids, dyschromia, erythema, global skin appearance, and skin tightening. Histopathologic findings correlated with clinical observations. Lasers Surg. Med. 41:408,426, 2009. © 2009 Wiley-Liss, Inc. [source]