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1.
Aesthetic Plast Surg ; 2024 Jun 05.
Article En | MEDLINE | ID: mdl-38839613

INTRODUCTION: The study investigates the impact of social media reviews and brand identity on consumer preferences in the non-surgical aesthetics products across different generations. It highlights the evolving landscape of aesthetic medicine and surgery, driven by technological advancements and a cultural shift towards individual well-being. The research aims to explore the interplay between generational preferences, the influence of social media, and the role of brand identity in shaping consumer decisions. METHODS: A cross-sectional study design was employed, with a sample size of > 5000 participants stratified across various generational cohorts. The study utilized an online questionnaire to capture both quantitative and qualitative insights into consumer behaviour, with statistical analysis performed to identify patterns and relationships. RESULTS: Analysis of 5850 responses revealed distinct generational preferences and behaviours. Social media engagement varied significantly across generations, with younger cohorts placing a higher emphasis on online reviews. The study also found that brand identity's influence is diminishing in decision-making processes, with consumers increasingly relying on peer reviews and social media content. CONCLUSION: The findings highlight a pivotal shift in the non-surgical aesthetics consumer market, emphasizing the growing importance of social media and peer reviews over traditional brand identities. Importantly, the study underscores the critical need for integrating patient safety and evidence-based practice within marketing strategies. As consumer preferences evolve towards valuing transparency and authenticity, non-surgical aesthetics providers must prioritize these elements, ensuring that their services are not only appealing but also grounded in safety and scientific validity. LEVEL OF EVIDENCE IV: "This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 ."

2.
BMC Psychol ; 12(1): 231, 2024 May 09.
Article En | MEDLINE | ID: mdl-38725022

BACKGROUND: Disability marginalises a large portion of Bangladesh's population. Global pre- and post-pandemic research evidently states that, this group is more prone to develop mental health problems, which increases the risk of self-harm and suicide among them. It is crucial to comprehend and mitigate the mental health challenges among the people with disabilities which in turn can promote their greater participation in community, and in national socioeconomic development. However, currently there is limited information available, regarding the suicidal behaviour of this group in Bangladesh. Therefore, this study aimed to investigate the prevalence and contributing factors of suicidal behaviour among people with disabilities. METHOD: A cross-sectional survey was conducted during September and October 2022, among the participants who had selected disabilities, by using probability proportional to size sampling technique across all eight divisions of Bangladesh. A semi-structured questionnaire comprising information about sociodemographic, lifestyle, health; and Suicidal Behaviour Questionnaire-Revision (SBQ-R) was used. The association between the determinants and mental health outcome was investigated using the Chi-square test, and the contributing factors were investigated using the multiple binary logistic regression. RESULT: About 10.45% of the participants reported to have suicidal behaviour (e.g., suicidal ideation, attempts, completed suicide), considering the cut-off score as 7 for the SBQ-R in the study period. Approximately, 40% respondents mentioned suicidal ideation in their lifetime, whereas, 9.01% had suicidal ideation over the past 12 months. Additionally, 8.87% of the person with disabilities, mentioned about their suicidal intent to the family members, and 5.94% reported the likelihood of suicide in the future. Being female, having multiple disabilities, and not being connected with family and friends were found to be significantly associated with suicidal behaviour. CONCLUSION: This research demonstrates the significance of treating mental health issues and expanding accessibility to pre-existing services to lessen the impact of the limitations generated by disabilities. Policymakers can utilize this baseline findings to design large scale research and develop measures for suicide prevention, and management for at-risk groups.


Disabled Persons , Self Report , Suicidal Ideation , Humans , Bangladesh/epidemiology , Female , Male , Cross-Sectional Studies , Adult , Disabled Persons/statistics & numerical data , Disabled Persons/psychology , Prevalence , Young Adult , Middle Aged , Adolescent , Suicide, Attempted/statistics & numerical data , Suicide, Attempted/psychology , Risk Factors
3.
BMC Health Serv Res ; 24(1): 270, 2024 Mar 04.
Article En | MEDLINE | ID: mdl-38433239

INTRODUCTION: Bangladesh is a developing country where 11% of the population has at least one disability, but no community-level mental health service is available. There is limited evidence of the burden of mental health issues and health-seeking behaviour among this population. This study assessed the feasibility of a training intervention for persons with disabilities, where peer support providers provided community-based disability-inclusive mental health services. METHODS: Four stakeholder groups participated in this qualitative study: peer responders (trained persons with disabilities), trainers, representatives of organisations of persons with disabilities and disability-specific organisations, and officials of international and national non-governmental organisations. Two types of qualitative interviews were used to collect data, and thematic analysis techniques were utilised. RESULT: Stakeholders perceived the peer responder training programme as acceptable for persons with disabilities to develop themselves as peer support providers, with potential benefits including increased mental health literacy, ensuring accessible mental health services, and improving the well-being of persons with disabilities. Potential challenges included receiving training and delivering services. Increased training duration, more fieldwork, supervision opportunities, and refresher training were recommended to mitigate training challenges. Financial support and formal community recognition were deemed necessary for training delivery. CONCLUSION: The peer responder training programme was feasible to ensure accessible mental health services for persons with disabilities, build a workforce to screen for mental health conditions, and provide appropriate referrals. A multi-sectoral collaboration of government and non-governmental institutions is recommended to policy advocates to expand the peer responder training programme in the mainstream mental healthcare system.


Disabled Persons , Mental Health Services , Humans , Bangladesh , Feasibility Studies , Mental Health
4.
Facial Plast Surg Clin North Am ; 31(4): 443-452, 2023 Nov.
Article En | MEDLINE | ID: mdl-37806678

Understanding translational biochemistry of the skin is an essential component in mastering non-invasive aesthetic treatments. Collagen is the most abundant protein in the animal kingdom and plays a significant role in maintaining structural function in biologically healthy human skin. Collagen degradation and synthesis occurs throughout human life. Upregulation of collagen synthesis remains the mainstay of non-invasive aesthetic skin treatments. Elastin is a smaller yet significant component in the skin's ability to maintain biologically healthy stretch and recoil. Multi-Omics represents a relatively nascent field in the optimization and development of therapies aimed at the aesthetic improvement of the skin.


Collagen , Skin , Animals , Humans , Collagen/metabolism
5.
Dermatol Surg ; 48(2): 195-200, 2022 Feb 01.
Article En | MEDLINE | ID: mdl-35050945

BACKGROUND: The Fraxel Dual laser system (Solta Medical, Inc., Bothell, WA) contains a 1,550 and 1,927 nm wavelength single handpiece with different indications for each wavelength. OBJECTIVE: To discuss treatment setting recommendations and best practices for select on-label and investigational applications of the 1,550 and 1,927 nm dual laser system. MATERIALS AND METHODS: Eight board-certified dermatologists with 10 or more years of experience with the 1,550 and 1,927 nm laser system completed an online survey about their clinical experience with the system and then participated in a roundtable to share clinical perspectives and best practices for using the laser system. RESULTS: For all Fitzpatrick skin types, treatment recommendations were described for selected approved indications for the 1,550 and 1,927 nm laser system, including both lasers in combination. Treatment recommendations were also reached for investigational applications with the 1,550 nm laser and 1,927 nm laser. Best practices for using the lasers during the treatment session to achieve optimal outcomes and decrease the post-treatment recovery time were compiled. CONCLUSION: The 1,550 and 1,927 nm dual laser system is effective for a wide range of aesthetic and therapeutic applications, on and off the face and across all Fitzpatrick skin types.


Laser Therapy , Lasers, Solid-State , Erbium , Esthetics , Face , Humans , Lasers, Solid-State/therapeutic use , Thulium , Treatment Outcome
6.
J Drugs Dermatol ; 20(11): 1150-1157, 2021 Nov 01.
Article En | MEDLINE | ID: mdl-34784135

BACKGROUND: Fractional laser treatment was introduced in 2004 as a non-invasive technique to treat sun-damaged and aging skin. Since then, numerous ablative and non-ablative photothermolysis technologies and devices have been introduced, increasing the options for clinicians and patients but also increasing the complexity regarding which system to use and the techniques to optimize outcomes. No two devices are the same and the user-manuals preset dosimetry does not address many clinical situations, which can create confusion for new and inexperienced users. METHODS: An online survey addressing use of a 1550 nm /1927 nm dual wavelength, non-ablative, fractional laser was sent to eight (8) US board certified dermatologists with extensive experience in the use of the device. The survey included 39 questions, addressing experience, best practices and recommendations for use. RESULTS: The survey data suggests that the device can be used to treat patients of all ages and skin types for indications including photoaging and photodamage, periorbital wrinkles, freckles, (ephelides), solar lentigines, poikiloderma, scarring due to acne or surgery. It can be used on both facial and non-facial areas, including neck, chest, hands, arms, abdomen, legs, and buttocks. Unexpected and adverse effects were rarely reported and those that did were mild and transient. CONCLUSIONS: This position paper provides practical real-world guidelines resulting from a small survey of experienced users, for new and early uses of the novel 1550 nm /1927 nm dual wavelength, non-ablative, fractional laser. J Drugs Dermatol. 2021;20(11):1150-1157. doi:10.36849/JDD.6181.


Acne Vulgaris , Laser Therapy , Lasers, Gas , Lasers, Solid-State , Skin Aging , Acne Vulgaris/therapy , Cicatrix , Hand , Humans
7.
J Obstet Gynaecol India ; 70(6): 497-502, 2020 Dec.
Article En | MEDLINE | ID: mdl-33417628

CONTEXT: The accuracy of colposcopy has recently been called into question particularly with regard to determining the site requiring biopsy. The technique of colposcopy is largely operator dependent, and the agreement between colposcopists is less reliable than once presumed. In an attempt to standardize colposcopy a new scoring system, the Swede score has been devised, which includes lesion size as a variable to be scored in addition to the 4 variables found in the modified Reids Colposcopic Index (RCI). AIM: To assess the diagnostic accuracy of Swede score for pre-invasive cervical lesion. SETTING AND DESIGN: A cross-sectional study in a tertiary care centre. METHOD: Swede score was calculated for assessment of pre-invasive cervical lesions on patients undergoing colposcopy who were suspected with pre-invasive cervical lesion. Cervical biopsy was taken if modified RCI ≥ 3 or Swede score ≥ 5. Histopathology report of the cervical biopsy was taken as gold standard. RESULTS: Swede scores of 5 or more had sensitivity, specificity, positive and negative predictive values of 94.9%, 88.4%, 75.5% and 92.9% respectively. CONCLUSION: The Swede score by just incorporating one additional variable that is size of the lesion, showed better correlation with histopathology.

9.
J Cancer Res Ther ; 15(6): 1338-1344, 2019.
Article En | MEDLINE | ID: mdl-31898670

OBJECTIVE: The aim of good management for cancer survivors should not be limited to only clinical care, but rather it should also include best quality of life (QOL). The objective of this study was to find out various factors affecting QOL in cervical cancer patients so that by modifying these factors, the best QOL can be provided to them. MATERIALS AND METHODS: This was a prospective cohort study conducted in the Department of Obstetrics and Gynaecology and Department of Radiotherapy, King George's Medical University (KGMU), Lucknow, from May 2015 to July 2016. The cases were selected from patients visiting the outpatient department or who were admitted to the Department of Obstetrics and Gynaecology and Department of Radiotherapy, KGMU. The data information was collected in the form of face-to-face interview using European Organization for Research and Treatment of Cancer general cancer QOL Score 30 (EORTC QLQ C-30) and EORTC QOL questionnaire cervical cancer module (QLQ CX-24) questionnaire. RESULTS: QOL was assessed in 85 patients. Health-related QOL was separately studied in terms of overall general QOL and cancer cervix-specific QOL, and various factors affecting QOL were studied by multivariate analysis. CONCLUSION: Education, tobacco use, degree of differentiation of tumor, and size of tumor were the independent factors found to have statistically significant effect on QOL of cervical cancer survivors.


Quality of Life , Uterine Cervical Neoplasms/epidemiology , Adult , Aged , Cancer Survivors , Factor Analysis, Statistical , Female , Humans , Middle Aged , Multivariate Analysis , Patient Outcome Assessment , Prospective Studies , Public Health Surveillance , Surveys and Questionnaires , Uterine Cervical Neoplasms/diagnosis , Uterine Cervical Neoplasms/therapy
10.
J Clin Aesthet Dermatol ; 11(8): 21-28, 2018 Aug.
Article En | MEDLINE | ID: mdl-30214663

Background: Chemoexfoliation, also known as chemical peeling, is a method of targeted cutaneous ablation using specific caustic agents that allow for rapid, predictable, and uniform thickness of chemoablation to a desired cutaneous depth, ultimately resulting in an improved appearance of skin. Objective: In this review, we provide an up-to-date analysis of all currently available chemical peels for dermatologic use, as well as a step-by-step instructional protocol for an algorithmic approach to treatment. Methods: A comprehensive search of the Cochrane Library, MEDLINE, and PUBMED databases was performed to identify relevant literature investigating chemical peeling agents. In addition, a search of all commercially available, prescription-based peeling agents was performed to identify all products currently available in the United States market. Results and Conclusion: Chemical peels are the third most commonly performed noninvasive cosmetic procedure in the United States, with over 1,300,000 procedures performed in 2016 alone. There has been a paradigm shift in recent years, with lasers largely supplanting deep peels. Despite this shift, superficial peels have proliferated in both popularity and product diversity. When used for the appropriate indication and with proper technique, nearly all peeling agents have demonstrated excellent clinical efficacy and remain an indispensable cost-effective tool in the dermatologist's aesthetic toolbox.

11.
BMJ Case Rep ; 20182018 Feb 14.
Article En | MEDLINE | ID: mdl-29444799

We present a case of a 28-year-old woman second gravida with a full-term pregnancy who presented to us in active phase of labour with third degree uterovaginal prolapse complicated by entrapment of fetal head by dystocia of cervix and fetal distress. Patient was immediately shifted to the operation theatre and prompt delivery was conducted by giving Duhrssen's incision on the highly vascular, oedematous prolapsed cervix. The outcome was an alive and healthy male baby. Duhrssen's incision was stitched with minimal blood loss. Postnatal management included antibiotics and daily intravaginal packing. Patient was discharged along with the baby in satisfactory condition.


Dystocia/surgery , Uterine Prolapse/surgery , Adult , Female , Fetal Distress/surgery , Humans , Infant, Newborn , Male , Pregnancy , Pregnancy Outcome , Uterine Prolapse/complications
12.
J Cosmet Laser Ther ; 19(5): 300-302, 2017 Oct.
Article En | MEDLINE | ID: mdl-28463045

The advent of targeted chemotherapy has led to the emergence of new dermatologic toxicities. We sought to use lasers and light devices to treat recalcitrant cutaneous adverse effects related to cancer treatment. Three stage III or IV cancer patients with cutaneous complications due to epidermal growth factor receptor (EGFR) inhibitors were treated with melanin and vascular-specific laser and light technologies. Two patients reported reduction in papulopustular eruption following pulse dye laser (PDL) treatment. Two patients noted reduction in hair growth following intense pulsed light (IPL) and/or Alexandrite laser treatments. One patient was treated with both the PDL and IPL and reported improvement of both EGFR-induced hypertrichosis and papulopustular eruption. Laser and light devices targeting melanin and hemoglobin can be utilized to mitigate the cutaneous adverse effects associated with EGFR inhibitors in patients who have failed traditional therapies. This represents a new option for the cancer patient who is suffering from chemotherapy-induced side effects.


Drug Eruptions/radiotherapy , ErbB Receptors/antagonists & inhibitors , Hypertrichosis/radiotherapy , Intense Pulsed Light Therapy , Lasers, Dye/therapeutic use , Neoplasms/drug therapy , Adult , Antineoplastic Agents/adverse effects , Antineoplastic Agents, Immunological/adverse effects , Cetuximab/adverse effects , Drug Eruptions/etiology , Erlotinib Hydrochloride/adverse effects , Female , Hemoglobins/radiation effects , Humans , Hypertrichosis/chemically induced , Male , Melanins/radiation effects , Middle Aged
13.
J Midlife Health ; 8(4): 183-188, 2017.
Article En | MEDLINE | ID: mdl-29307981

AIM: The aim of the study was to assess the quality of life (QoL) in women suffering from cancer cervix before and after the treatment, to study various factors affecting the QoL in these women, and to evaluate the impact of treatment modalities on the QoL. MATERIALS AND METHODS: Women with cervical cancer attending Department of Obstetrics and Gynecology and Department of Radiotherapy who met the eligibility criteria were interviewed with a structured questionnaire of QoL, the European Organization for Research and Treatment of Cancer QLQ30, and its Cervical Cancer Module (Cx24). The baseline observations were recorded when the patient first reported, second evaluation was done at 3 months posttreatment, and the third evaluation at 6 months posttreatment. QoL domains along with sociodemographic and clinicopathological variables were analyzed. RESULTS: A total of ninety patients were included for analysis, of which 5 were lost to follow up. A statistically significant improvement was found in physical, emotional function, pain, fatigue, and vaginal symptoms of the participants; however, there was no significant improvement in social, cognitive, or role functioning, body image, sexual activity, or sexual enjoyment. Vaginal and sexual function worsened significantly. Multivariate analysis showed that young women and those with a higher level of education had better QoL. Stage and type of cancer had little impact on the general QoL, but participants with earlier stage and well-differentiated cancer had better cancer cervix-specific QoL. CONCLUSION: The QoL of the participants in terms of physical (P = 0.04) and emotional functioning (P = 0.001) improved with treatment. Women with a higher level of education and early stage of disease had better QoL.

14.
Food Nutr Bull ; 37(1): 14-26, 2016 Mar.
Article En | MEDLINE | ID: mdl-27004969

BACKGROUND: Diet diversity of pregnant women is associated with nutrition sufficiency, micronutrient adequacy, and pregnancy outcomes. However, the sociodemographic determinants of diet diversity among pregnant women in low-income countries are not well studied. OBJECTIVE: The analysis was undertaken to study the determinants of high dietary diversity and consumption of micronutrient-rich foods by pregnant women from rural Bangladesh. METHODS: Pregnant women (508) were randomly selected from southwestern Bangladesh and interviewed to collect data about diet and sociodemographic characteristics. A 24-hour recall was used to collect information about diet. Diet diversity score was calculated for 9 major food groups. All analyses were conducted using STATA SE 12. RESULT: The overall mean diet diversity score was low at 4.28 and was significantly high among pregnant women who have higher educational achievement, whose husbands' occupation was business, who live in households of 4 or more family members, and who were dwelling in a house with more than 1 room. Highest gap on knowledge and consumption was reported for 3 food groups including dairy foods, eggs, and dark green leafy vegetables. Consumption of dairy and eggs was lower among women from low socioeconomic status, but no significant association was found between sociodemographic characteristics and consumption of leafy vegetables. CONCLUSION: Our analysis has shown that diet quality of pregnant women was poor and intake of micronutrient-rich foods was low despite having knowledge about the importance of these foods, underscoring the need for promoting the diet quality in developing countries through behavior change communication programs.


Diet , Maternal Nutritional Physiological Phenomena , Adolescent , Adult , Bangladesh , Dairy Products , Developing Countries , Diet Records , Educational Status , Eggs , Family Characteristics , Female , Health Education , Health Knowledge, Attitudes, Practice , Humans , Mental Recall , Micronutrients/administration & dosage , Occupations , Pregnancy , Rural Population , Spouses , Vegetables , Young Adult
15.
J Am Acad Dermatol ; 70(5): 911-7, 2014 May.
Article En | MEDLINE | ID: mdl-24641985

BACKGROUND: Laser therapies have been Food and Drug Administration approved for temporary nail plate clearance; however, there is minimal evidence of their long-term efficacy. OBJECTIVE: We sought to evaluate the clinical and mycological clearance of toenails treated with 1064-nm neodymium:yttrium-aluminum-garnet laser versus no treatment. METHODS: This was a randomized, controlled, single-center trial comparing 2 treatments with 1064-nm neodymium:yttrium-aluminum-garnet laser (fluence of 5 J/cm(2), rate of 6 Hz) spaced 2 weeks apart versus no treatment in 27 patients (N = 125 affected nails) with clinical and mycological diagnosis of onychomycosis. At 3 months, patients were assessed with mycological cultures and proximal nail plate measurements. Patients treated with laser were also assessed with proximal nail plate measurements at 12 months. RESULTS: At 3 months, 33% of patients treated with laser achieved a negative mycological culture compared with 20% of the control group (P = .49), and had more proximal nail plate clearance compared with control subjects (0.44 vs 0.15 mm, P = .18), which was not statistically significant. At 12 months, there was no difference in nail plate clearance between laser versus control subjects (0.24 vs 0.15 mm, P = .59). LIMITATIONS: Our study was limited by the small sample size and number of treatments. CONCLUSIONS: There was no significant mycological culture or clinical nail plate clearance with 1064-nm neodymium:yttrium-aluminum-garnet laser compared with control.


Foot Dermatoses/surgery , Lasers, Solid-State/therapeutic use , Onychomycosis/surgery , Adolescent , Adult , Aged , Female , Humans , Male , Middle Aged , Retreatment , Treatment Failure , Young Adult
17.
J Biomed Opt ; 14(2): 024018, 2009.
Article En | MEDLINE | ID: mdl-19405748

In vivo wound healing response post nonablative fractional laser treatment is evaluated. Seven healthy subjects receive treatments with a Fraxel re:store laser system on the forearm with pulse energies ranging from 10 to 70 mJ. The treatment sites are imaged at 1-h increments up to 40 h using confocal microscope z-stacks using 10-mum-depth spacing. At least five individual microscopic treatment zones are imaged per subject, time point, and treatment energy. Images are analyzed for tissue structure and morphology to classify each lesion as healed or not healed, depending on epidermal re-epithelialization at each time point and treatment energy. Probit analysis is used to statistically determine the ED(50) and ED(84) probabilities for a positive dose response (healed lesion) as a function of treatment energy. Confocal observations reveal epidermal keratinocyte migration patterns confirmed with histological analysis using hematoxylin and eosin (HE) and lactate dehydrogenase (LDH) staining at 10 mJ at 0, 7, 16, and 24-h post-treatment. Results indicate that more time is required to conclude re-epithelialization with larger lesion sizes (all less than 500 mum) corresponding to higher treatment energies. For the entire pulse energy range tested, epidermal re-epithelialization concludes between 10 to 22-h post-treatment for ED(50) and 13 to 28 h for ED(84).


Dermoscopy/methods , Laser Therapy/methods , Microscopy, Confocal/methods , Skin Physiological Phenomena , Skin/cytology , Wound Healing/physiology , Humans , Statistics as Topic
18.
Lasers Surg Med ; 41(2): 78-86, 2009 Feb.
Article En | MEDLINE | ID: mdl-19226572

BACKGROUND AND OBJECTIVE: Due to the significant risk profile associated with traditional ablative resurfacing, a safer and less invasive treatment approach known as fractional deep dermal ablation (FDDA) was recently developed. We report the results of the first clinical investigation of this modality for treatment of photodamaged skin. STUDY DESIGN/MATERIALS AND METHODS: Twenty-four subjects received treatments on the inner forearm with a prototype fractional CO(2) laser device (Reliant Technologies Inc., Mountain View, CA) at settings of 5-40 mJ/MTZ and 400 MTZ/cm(2). Clinical and histological effects were assessed by study investigators 1 week, 1 month, and 3 months following treatment. Thirty subjects were then enrolled in a multi-center study for treatment of photodamage using the same device. Subjects received 1-2 treatments on the face and neck, with energies ranging from 10 to 40 mJ/MTZ and densities ranging from 400 to 1,200 MTZ/cm(2). Study investigators assessed severity of post-treatment responses during follow-up visits 48 hours, 1 week, 1 month, and 3 months following treatment. Using a standard quartile improvement scale (0-4), subjects and investigators assessed improvement in rhytides, pigmentation, texture, laxity and overall appearance 1 and 3 months post-treatment. RESULTS: Clinical and histologic results demonstrated that fractional delivery of a 10,600 nm CO(2) laser source offers an improved safety profile with respect to traditional ablative resurfacing, while still effectively resurfacing epidermal and dermal tissue. Forearm and facial treatments were well-tolerated with no serious adverse events observed. Eighty-three percent of subjects exhibited moderate or better overall improvement (50-100%), according to study investigator quartile scoring. CONCLUSIONS: FDDA treatment is a safe and promising new approach for resurfacing of epidermal and deep dermal tissue targets.


Cosmetic Techniques , Dermatologic Surgical Procedures , Laser Therapy/methods , Skin Aging , Adult , Aged , Humans , Middle Aged , Pilot Projects
19.
Dermatol Surg ; 33(3): 289-94; discussion 293-4, 2007 Mar.
Article En | MEDLINE | ID: mdl-17338685

BACKGROUND: Treatments for hypopigmented scars have shown limited efficacy and variable safety profiles. OBJECTIVE This study evaluated the safety and efficacy of fractional resurfacing (1,550-nm Fraxel SR laser, Reliant Technologies, Mountain View, CA) for the treatment of hypopigmented scars on the face in seven patients. MATERIALS AND METHODS: Seven patients with hypopigmented scars on the face received between two and four successive treatments at 4-week intervals with the 1,550-nm Fraxel SR laser. Energy settings ranged from 7 to 20 mJ and a total density of 1,000 to 2,500 microthermal zones per square centimeter. Digital photographs were taken before each treatment and at 4 weeks after the last treatment. Independent physician clinical assessments were performed. RESULTS: Independent physician clinical assessment 4 weeks after the final Fraxel SR laser treatment revealed improvements of 51% to 75% in hypopigmentation in six of seven patients. One patient had only 26% to 50% improvement in hypopigmentation. Additionally, clinical improvements were noted in the overall texture of the treated skin. The patient's degree of satisfaction paralleled the physician's assessment of improvement. All patients reported improvement in hypopigmentation lasting greater than 3 months after the last treatment. Side effects were limited to mild pain during the treatment and mild posttreatment erythema and edema, which resolved in 2 to 4 days. CONCLUSION: Fractional resurfacing is a potentially effective modality for the treatment of hypopigmented scarring on the face. No adverse effects were observed.


Cicatrix/surgery , Dermatologic Surgical Procedures , Hypopigmentation/surgery , Laser Therapy , Acne Vulgaris/complications , Adult , Cheek , Cicatrix/etiology , Cicatrix/pathology , Dose Fractionation, Radiation , Humans , Middle Aged , Pilot Projects , Retreatment
20.
Lasers Surg Med ; 39(2): 96-107, 2007 Feb.
Article En | MEDLINE | ID: mdl-17311274

BACKGROUND AND OBJECTIVES: A novel carbon dioxide (CO(2)) laser device employing ablative fractional resurfacing was tested on human skin in vivo for the first time. STUDY DESIGN/MATERIALS AND METHODS: An investigational 30 W, 10.6 microm CO(2) laser system was focused to a 1/e(2) spot size of 120 microm to generate an array of microscopic treatment zones (MTZ) in human forearm skin. A range of pulse energies between 5 and 40 mJ was tested and lesion dimensions were assessed histologically using hematoxylin and eosin. Wound healing of the MTZ's was assessed immediately-, 2-day, 7-day, 1-month, and 3-month post treatment. The role of heat shock proteins was examined by immunohistochemistry. RESULTS: The investigational CO(2) laser system created a microscopic pattern of ablative and thermal injury in human skin. The epidermis and part of the dermis demonstrated columns of thermal coagulation that surrounded tapering ablative zones lined by a thin eschar layer. Changing the pulse energy from 5 to 30 mJ resulted in a greater than threefold increase in lesion depth and twofold increase in width. Expression of heat shock protein (hsp)72 was detected as early as 2 days post-treatment and diminished significantly by 3 months. In contrast, increased expression of hsp47 was first detected at 7 days and persisted at 3 months post-treatment. CONCLUSION: The thermal effects of a novel investigational ablative CO(2) laser system utilizing fractional resurfacing were characterized in human forearm skin. We confirmed our previous ex vivo findings and show for the first time in-vivo, that a controlled array of microscopic treatment zones of ablation and coagulation could be deposited in human skin by varying treatment pulse energy. Immunohistochemical studies of heat shock proteins revealed a persistent collagen remodeling response lasting at least 3 months. We successfully demonstrated the first in-vivo use of ablative fractional resurfacing (AFR) treatment on human skin.


Dermatology/instrumentation , Lasers , Skin/radiation effects , Biopsy , Carbon Dioxide , Dose Fractionation, Radiation , Epithelial Cells , Forearm , HSP72 Heat-Shock Proteins/metabolism , Humans , Immunohistochemistry , Skin/injuries , Skin/pathology , Wound Healing/radiation effects
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