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Background: Burn scars are a major clinical challenge. The aim of this study was to determine the effectiveness and safety of one treatment with the ablative fractional CO 2 laser (AFL-CO 2 ) compared to standard burn scar treatment., Method: From December 2014 to October 2018 patients were prospectively recruited and treatment effects analyzed by assessing various outcome parameters from the date of first consultation and after treatment. A case control study was conducted looking at the impact of one AFL-CO 2 treatment compared to a cohort subjected to conventional conservative treatment. Adverse effects were noted at follow up., Results: 187 patients were included, with 167 in the AFL-CO 2 , and 20 in the control cohort. Baseline demographics and scar characteristics showed no significant differences. Ultrasound measured scar thickness as well as the Vancouver Scar Scale (VSS) revealed a significant reduction in the treatment cohort, but no significant improvement in the control group. The POSAS-O was significantly improved in both cohorts. Subjective parameters (POSAS-P, DN4-Pain, and modified D4Pruritus scores) decreased significantly in the AFL-CO 2 cohort but remained unchanged in the control group. The BSHS-B quality of life score increased significantly in the AFL-CO 2 group, but worsened at the follow up of the untreated patients. Sub-domain analyses found the biggest differences in Affect, Body Image, Heat Sensitivity, Treatment and Work. Complications occurred in 5 patients (2.9%)., Conclusions: This study demonstrates that AFL-CO 2 is an effective and safe treatment modality for burn scars improving thickness, symptoms and quality of life of burn survivors when compared to conventional scar treatment., (Copyright © 2020 Elsevier Ltd and ISBI. All rights reserved.)

Background and Objective: To investigate whether the depth of ablative fractional CO 2 laser (CO 2 -AFL) penetration of pathological burn scars influences clinical outcomes., Study Design/materials and Methods: All patients presenting to the Concord Repatriation General Hospital (CRGH) Scar Clinic received ultrasound measurement at the thickest point of their burn scars. Subsequently, the effect of various CO 2 -AFL settings (energy which correlates to penetration depths) on different outcome parameters was analysed. Patients were divided into five groups depending on minimal scar penetration depth., Results: Seventy-eight patients (158 scars) had complete data allowing for analysis. Median scar thickness was 3,400 μm and median laser scar penetration depth was 900 μm. Scar penetration categories were as follows: 0-25% (n = 40), 25-50% (n = 67), 50-75% (n = 31), 75-100% (n = 8), >100% (n = 3) of scar thickness. The median reduction in maximum scar thickness was 800 μm following one treatment (P < 0.001). However, this effect depended on scar penetration depth, whereby scars that were penetrated ≥75% showed no significant improvement in scar thickness and those penetrated >100% indicated a tendency to become worse. Other assessed outcome parameters included: the Vancouver Scar Scale, the Patient and Observer Scar Assessment Scale, a neuropathic pain score (DN4 Pain Questionnaire), and a pruritus score (modified D4 Pruritus Score). All these factors showed significant improvement in the categories up to 75% scar penetration depth., Conclusions: CO 2 -AFL scar penetration depth significantly influences subjective and objective pathologic burn scar modulation. The penetration depth of 51-75% achieves the greatest reduction in scar thickness. Lasers Surg. Med. © 2019 Wiley Periodicals, Inc., (© 2019 Wiley Periodicals, Inc.)

Background: The introduction of ablative fractional CO 2 lasers (CO 2 -AFL) for burn scar management shows promising results. Whilst recent studies have focused on objective scar outcomes following CO 2 -AFL treatment, to date no data on patient subjective factors such as quality of life are available., Methods: A prospective study was initiated to analyze the safety and efficacy of the CO 2 -AFL. Various objective and subjective outcome parameters were prospectively collected from the date of first consultation and follow-up following treatment. Objective factors include the Vancouver Scar Scale (VSS), the Patient and Observer Scar Assessment Scale (POSAS), and ultrasound measurements of the thickness of the scar. Subjective parameters included the assessment of neuropathic pain and pruritus, as well as the evaluation of improvement of quality of life following CO 2 -AFL with the Burns Specific Health Scale (BSHS-B). For treatment effect analysis, patients were stratified according to scar maturation status (> or <2 years after injury)., Results: 47 patients with 118 burn scars completed at least one treatment cycle. At a median of 55 days (IQR 32-74) after CO 2 -AFL treatment all analyzed objective parameters decreased significantly: intra-patient normalized scar thickness decreased from a median of 2.4mm to 1.9mm (p<0.001) with a concomitant VSS-drop from a median of 7 to 6 (p<0.001). The overall POSAS patient scale decreased from a median of 9 to 5 (p<0.001) with similar effects documented in POSAS observer scales. Both pain and pruritus showed significant reduction. Quality of life increased significantly by 15 points (median 120 to 135; p<0.001). All of the identified changes following CO 2 -AFL were equally significant irrespective of scar maturation status., Conclusion: Our preliminary results confirm significant improvement in thickness, texture, colour, and symptoms following treatment with CO 2 -AFL. Foremost, quality of life of patients with both immature and mature scars (up to 23 years after injury) improved significantly after just one treatment session. To our knowledge, this is the first study to document such holistic treatment effects in burn patients treated by CO 2 -AFL., (Copyright © 2016 Elsevier Ltd and ISBI. All rights reserved.)

Current evidence suggests awaiting for scars to fully mature before engaging surgical reconstruction unless acute indications to prevent secondary damage, such as microstomia and eyelid ectropion are apparent. To evaluate the efficacy of ablative fractional CO2 laser intervention early in the acute treatment of panfacial burn injury. A 39-year-old Asian male with 60% TBSA flame burns including panfacial involvement was developing microstomia and upper and lower eyelid ectropion early proceeding epithelialization. At 6-weeks postinjury, ablative fractional CO2 laser treatment was commenced while still in the intensive care unit, and subsequently delivered at regular intervals. Nonsurgical scar contracture management was provided concurrently as per site specific standard protocols. Measurements and photographic data relative to deficits in eye and mouth competence were obtained at rest, as well as maximal opening at baseline and routinely until scar stabilization was reached. The outcomes were subsequently compared with facial burn patient historical data within our facility. No significant difference was identified in the functional ROM for mouth and eye regions; treatment duration was, however, shorter and aesthetic outcomes were considered superior to their surgical reconstruction counterparts in the historical cohort. This case report reveals that early ablative fractional CO2 resurfacing treatment, coalesced with nonsurgical scar management is an efficacious interventional approach to abate contractures to the face, accelerates and enhances scar maturation processes and may alleviate the need for surgical scar reconstructions. Moreover, optimal aesthetic outcomes may be achieved compared with traditional reconstructive methods. [ABSTRACT FROM AUTHOR]