RESUMEN
Laser hair removal (LHR) has been established as a safe and efficient method for eliminating unwanted hair. This study aimed to investigate the frequency of LHR complications and assess the contributing factors. During one year, 16,900 patients undergoing LHR therapy were evaluated for complications. For each case, two external controls were selected (matched based on age, sex, Fitzpatrick skin type (FST) III-IV, and the treated anatomical region). To assess the impact of anatomical region on complication occurrence, each patient was used as their internal control if another area was treated during the same session. GEE analysis was used for statistical analysis.The incidence of LHR complications was calculated to be 0.69%. The most common complications were petechia, purpura, and ecchymosis (31.66%) followed by pigmentation changes (20.0%). LHR complications were most commonly observed in the lower limbs (32.0%), face and neck (23.3%), and genitalia and thighs (22.3%), respectively. Possible risk factors were younger age (OR = 0.74, P-value ≤ 0.001), operating LHR in the head and neck (OR = 5.8, P-value = 0.022), utilization of the alexandrite laser (OR = 2.32, P-value = 0.011), and fluence in the Alexandrite laser (OR = 3.47, P-value = 0.003).Overall, the results of this study indicate that LHR is generally a safe method for removing unwanted hair. However, factors such as younger age, treatment of the facial area, and use of the alexandrite laser especially with higher fluence levels in patients with FST III-IV were identified as potential risk factors.
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Remoción del Cabello , Láseres de Estado Sólido , Humanos , Remoción del Cabello/efectos adversos , Remoción del Cabello/métodos , Femenino , Estudios de Casos y Controles , Masculino , Adulto , Factores de Riesgo , Persona de Mediana Edad , Láseres de Estado Sólido/efectos adversos , Láseres de Estado Sólido/uso terapéutico , Adulto Joven , Equimosis/etiología , Equimosis/epidemiología , Centros de Atención Terciaria , Púrpura/etiología , Complicaciones Posoperatorias/etiología , Complicaciones Posoperatorias/epidemiología , Adolescente , Terapia por Láser/efectos adversos , Terapia por Láser/métodosRESUMEN
BACKGROUND: Alexandrite laser is more adapted for lighter hair but not for darker skin, while the Nd:YAG laser is more suitable for darker skin but not for lighter hair. OBJECTIVE: To evaluate both laser used as single treatment and in simultaneous emission for axillary hair removal. METHOD: Ten patients (18-40 years old) were selected for this study. The spot size and pulse time were kept constant for all patients, 14 mm and 5 ms, respectively. The fluences were 20 to 28 J/cm2, 16 to 25 J/cm2, and 14-8 J/cm2 to 25-13 J/cm2 for Nd:YAG, alexandrite and the combined alex/YAG, respectively. Three treatment sessions were performed at 6-week interval, and patients were reviewed 4 months after the last session. RESULTS: The median number of hairs reduced from 46.00 to 33.00 (p = .022) for alexandrite, from 44.50 to 30.00 (p = .02) for Nd:YAG and from 56.00 to 19.50 (p = .005) for alexandrite-Nd:YAG, equivalent to 46.70%, 27.74% and 70.12% median hair reduction, respectively. CONCLUSIONS: The simultaneous emission of both 755 nm and 1064 nm Nd:YAG laser is significantly more effective than a single laser treatment. Future studies are needed to confirm the good results of this innovative technique.
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Axila , Remoción del Cabello , Láseres de Estado Sólido , Humanos , Remoción del Cabello/métodos , Remoción del Cabello/instrumentación , Láseres de Estado Sólido/uso terapéutico , Adulto , Estudios Prospectivos , Adulto Joven , Femenino , Adolescente , Terapia por Luz de Baja Intensidad/métodos , Terapia por Luz de Baja Intensidad/instrumentación , MasculinoRESUMEN
CONTEXT: Laser hair removal treatment for hairlines with an unsatisfactory appearance often leads to an unnatural appearance; however, few studies have reported treatment outcomes. OBJECTIVE: To explore the satisfaction rate of laser hair removal involving the hairline. DESIGN: Retrospective analysis. SETTING: Data from 5 clinical institutions. PATIENTS: Patients (915; 630 female and 285 male) who underwent laser hair removal. INTERVENTIONS: Issues associated with hair removal were classified, and their proportions were calculated. Hair transplantation was performed to improve the appearance of different hairline issues. MAIN OUTCOME MEASURES: Relevant indicators of hair transplantation and postoperative effects. RESULTS: Overall, 82 patients were unsatisfied with their hairline appearance; of these patients, 58 underwent hair transplantation to improve the hairline. Additionally, demographic statistics showed that 68% and 32% of patients were in the 20 to 30 and 30 to 40 years age groups, respectively; there were no patients in the 40 to 50 years age group. Among female patients who underwent hair transplantation, 25% had a poor hairline position, 64% had a stiff hairline appearance, and 11% experienced both issues. Among male patients, 50% had a stiff hairline appearance, 28% had temporal absence, and 22% experienced both issues. Surgical treatment included moving the hairline forward and rebuilding the frontal curves. All patients were satisfied with hair transplantation outcomes. CONCLUSIONS: Laser hair removal can result in diverse types of unnatural hairlines. Hair transplantation has been proven to effectively improve the aesthetic appearance of the hairline.
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Remoción del Cabello , Cabello , Satisfacción del Paciente , Humanos , Femenino , Masculino , Estudios Retrospectivos , Adulto , Remoción del Cabello/métodos , Persona de Mediana Edad , Cabello/trasplante , Resultado del Tratamiento , Adulto Joven , Terapia por Láser/métodos , AdolescenteRESUMEN
Laser hair removal is a commonly used method in dermatology which is based on selective thermolysis and utilizes the appropriate wavelength, pulse width, and energy density to damage hair follicles. Given the prevalence of skin diseases such as psoriasis, dermatitis, and vitiligo, and the increasing popularity of laser hair removal, the aim of this study was to investigate the safety of laser hair removal in individuals with skin diseases. This retrospective study was conducted at the laser department of Razi Hospital on 99 patients who underwent laser hair removal. The exacerbation of disease after laser therapy was significantly associated with active skin disease (p = .021) and laser treatment at the site of the disease (p < .001). The incidence of Koebner phenomenon was significantly associated with age (p = .017) and the number of sessions with the ND-YAG device (p = .034). It is crucial to exercise caution when performing laser treatment on individuals with active skin disease and to avoid treating the affected area were possible. If necessary, it is recommended to delay laser treatment until the disease is under control for patients with active skin disease or those who wish to receive laser treatment at the site of the disease.
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Remoción del Cabello , Láseres de Estado Sólido , Humanos , Estudios Retrospectivos , Remoción del Cabello/efectos adversos , Remoción del Cabello/métodos , Femenino , Masculino , Adulto , Persona de Mediana Edad , Láseres de Estado Sólido/uso terapéutico , Láseres de Estado Sólido/efectos adversos , Enfermedades de la Piel/radioterapia , Enfermedades de la Piel/etiología , Adulto Joven , Psoriasis/radioterapia , Terapia por Luz de Baja Intensidad/efectos adversos , Terapia por Luz de Baja Intensidad/métodos , Terapia por Luz de Baja Intensidad/instrumentación , Vitíligo/radioterapia , Adolescente , AncianoRESUMEN
OBJECTIVES: Hidradenitis suppurativa (HS) is a chronic inflammatory condition characterized by painful nodules, draining tunnels, and fibrotic scarring in intertriginous, hair-bearing areas. The pathogenesis involves follicular occlusion and subsequent rupture, leading to uncontrolled inflammation. Treatment options for HS are limited and lack universal effectiveness. Laser hair removal (LHR) has been explored as a potential treatment; however, the efficacy and appropriate laser modalities remain unclear. This systematic review examined the efficacy and adverse effects of LHR in HS. METHODS: A comprehensive literature search was conducted from inception to September 2023 in Ovid MEDLINE, Ovid Embase, and The Cochrane Library (Wiley) with predefined inclusion and exclusion criteria, and a meta-analysis was conducted. RESULTS: Ten studies were selected (n = 227 total patients) and included six randomized controlled trials, two nonrandomized experimental studies, and two case series. Various laser modalities, including long-pulsed neodymium-doped yttrium aluminum garnet (Nd:YAG) (n = 115), intense pulsed light (n = 18), Alexandrite (n = 54), intralesional 1064 nm diode (n = 20), and combined fractional CO2 and long-pulsed Nd:YAG laser (n = 20), consistently demonstrated significant improvement in HS disease severity, irrespective of the disease scoring method used. Minimal adverse effects (primarily mild pain and erythema) were reported. A meta-analysis of three studies utilizing long-pulsed Nd:YAG laser demonstrated a standardized mean difference in disease severity of -1.68 (95% confidence interval: -2.99; -0.37), favoring treatment with LHR for HS. CONCLUSIONS: Hair follicles are key in HS pathogenesis and all included studies showed a significant improvement in HS disease severity after LHR regardless of the laser device used, likely related to hair follicle unit destruction. HS is a complex and heterogenous condition, and multiple disease scoring methods complicate outcome comparisons across studies. However, LHR, utilizing various techniques, is an effective treatment option for HS with minimal adverse effects.
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Remoción del Cabello , Hidradenitis Supurativa , Humanos , Hidradenitis Supurativa/cirugía , Hidradenitis Supurativa/terapia , Remoción del Cabello/métodos , Resultado del Tratamiento , Terapia por Láser/métodos , Láseres de Estado Sólido/uso terapéuticoRESUMEN
OBJECTIVES: Melanin is considered the main chromophore for laser hair removal. Due to a lack of laser-absorbing chromophores, removing non-pigmented hair with laser is quite problematic with unsatisfactory outcomes. This problem could be solved by delivering more melanin to the area around the hair follicle and enhancing that area as a target for light absorption. The insolubility of Sepia melanin as an exogenous dye, in most solvents, limits its bioavailability and thus its clinical use. METHODS: In our study, to overcome the solubility problems and increase the bioavailability of melanin for biomedical and cosmetic applications, natural sepia melanin was loaded in different nano-delivery systems (spanlastics and transfersomes) to be delivered to the hair follicles. The different formulations of melanin were prepared and characterized. In vivo skin deposition and histopathological studies were conducted on albino mice. RESULTS: Transmission electron microscopy (TEM) showed the spherical shape of the prepared vesicles with an average particle size of 252 and 262 nm and zeta potential of -22.5 and -35 mV for melanin spanlastics and melanin transfersomes, respectively. Histopathological examination of hair follicles and pilosebaceous glands for the irradiated and non-irradiated albino mice skin was studied post the application of the prepared formulations topically and subcutaneously. Qualitative statistical analysis was conducted and melanin transfersomes and melanin spanlastics showed significant damage to pilosebaceous glands and hair follicles with a p-value of 0.031 and 0.009 respectively. CONCLUSION: Melanin nanovesicles as transfersomes and spanlastics could be considered a promising approach for the removal of non-pigmented hair.
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Folículo Piloso , Remoción del Cabello , Melaninas , Nanopartículas , Sepia , Animales , Melaninas/metabolismo , Remoción del Cabello/métodos , Ratones , Nanopartículas/química , Folículo Piloso/metabolismo , Sepia/química , Rayos Láser , Tamaño de la Partícula , Piel/metabolismo , Disponibilidad BiológicaRESUMEN
PURPOSE: Intraoral hair growth is a debilitating side effect of flap or graft-based oropharyngeal reconstruction. There is no standardized treatment, but groups have successfully eradicated unwanted hair growth with intraoral laser hair removal. This scoping review assesses the utility of laser therapy in managing this condition. METHODS: This scoping review followed PRISMA-ScR guidelines. Ovid Medline, Embase (Ovid) and Scopus were queried using index terms and keywords. Resulting articles were reviewed for inclusion by two independent reviewers against inclusion criteria and relevant data were extracted. RESULTS: The literature search yielded 297 articles, 22 of which met inclusion criteria. In total, 77 patients were treated: 38 patients with an Alexandrite laser, 19 with an Nd:YAG laser, 18 with a diode laser, and two with a CO2 laser. Complete response defined as 80% or more reduction in hair count was achieved in 70 patients (90%) and six patients (8%) achieved a partial response (10%-79% reduction in hair count). One patient (1%) with gray hair saw less than a 10% reduction in hair count. On average, 3.84 treatment sessions were needed, spaced 5.4 weeks apart. Treatments were well tolerated without major side effects. CONCLUSIONS: This is the first scoping review assessing the utility of intraoral laser hair therapy and suggests it may be a safe and effective treatment. However, surgeons should advise preoperative hair removal when clinically feasible to mitigate this side effect as much as possible.
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Remoción del Cabello , Humanos , Remoción del Cabello/métodos , Terapia por Láser/métodos , Láseres de Estado Sólido/uso terapéutico , Resultado del TratamientoRESUMEN
Pilonidal disease and hidradenitis suppurativa affect healthy young adults, causing discomfort and pain that leads to loss of work productivity and should be approached in a personalized manner. Patients with pilonidal disease should engage in hair removal to the sacrococcygeal region and surgical options considered. Hidradenitis suppurativa can be a morbid and challenging disease process. Medical management with topical agents, antibiotics, and biologics should be used initially but wide local excision should be considered in severe or refractory cases of the disease.
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Hidradenitis Supurativa , Seno Pilonidal , Humanos , Hidradenitis Supurativa/terapia , Hidradenitis Supurativa/cirugía , Hidradenitis Supurativa/complicaciones , Hidradenitis Supurativa/diagnóstico , Seno Pilonidal/cirugía , Seno Pilonidal/terapia , Seno Pilonidal/diagnóstico , Remoción del Cabello/métodosRESUMEN
Importance: Hirsutism represents a significant concern for women with polycystic ovary syndrome (PCOS), with deleterious psychological effects warranting acknowledgment and a clear imperative to provide effective management. To our knowledge, this is the first review to exclusively examine the effectiveness of laser and light-based therapies in addressing hirsutism in women with PCOS. Objective: To synthesize the existing literature regarding the effectiveness of laser and light hair reduction therapies, either as stand-alone treatments or in combination with systemic agents, in treating hirsutism for women with PCOS. Evidence Review: A systematic literature review was performed using MEDLINE, Embase, EMCARE, and CINAHL according to the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) reporting guidelines. Articles written in English, reporting on patients who met pre-established inclusion criteria were selected. Objective and subjectively measured outcomes relating to the effect of laser or light-based hair reduction therapies on hirsutism were abstracted. Heterogeneity among included studies precluded a meta-analysis, necessitating a narrative synthesis. Findings: Six studies reporting data on 423 individual patients with PCOS who underwent laser or light-based hair reduction therapies were included: 4 randomized clinical trials and 2 cohort studies. Alexandrite laser demonstrated significant improvements in hirsutism severity and psychological outcomes, particularly at high-fluence application. Alexandrite laser was also found to be more effective than intense pulsed light (IPL). The combination of diode laser with either metformin or combined oral contraceptive pill was superior to the application of diode laser alone, just as the addition of metformin to IPL demonstrated superior results to IPL treatment alone. Overall, most interventions were well tolerated. The overall certainty of evidence across all outcomes and comparisons was limited in part due to the observational nature of some studies. Conclusions and Relevance: This systematic review highlights the potential of laser and light hair reduction therapies, both as stand-alone treatments and in combination with other pharmacological agents in PCOS. However, this review was limited by low certainty of the evidence, few studies evaluating effectiveness and safety in those with skin of color, and heterogeneity in outcome assessment. Future studies are needed to provide more robust evidence among diverse individuals with PCOS and hirsutism.
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Remoción del Cabello , Hirsutismo , Síndrome del Ovario Poliquístico , Femenino , Humanos , Terapia Combinada , Remoción del Cabello/métodos , Hirsutismo/terapia , Hirsutismo/etiología , Terapia por Láser/métodos , Terapia por Luz de Baja Intensidad/métodos , Metformina/uso terapéutico , Metformina/administración & dosificación , Fototerapia/métodos , Síndrome del Ovario Poliquístico/complicaciones , Síndrome del Ovario Poliquístico/terapia , Resultado del TratamientoRESUMEN
Previous studies have shown that cosmetic procedures and products that perpetuate Western hegemonic beauty standards among women have become increasingly popular, and pressures from sociocultural agents to utilize them are significant. However, little work has documented the relationship between perceived sociocultural pressures and use of cosmetic procedures and products among a larger age range of adult women. A community sample of 308 women aged 18-66, mean (SD) age of 35.7 (9.7), reported on the cosmetic procedures they had considered or used, as well as perceived pressures from the media, peers, romantic partners, and health and beauty professionals. Findings revealed that, among those investigated, the most frequently utilized products and procedures were supplements and hair removal. However, a significant minority reported considering more invasive procedures, including cosmetic surgery. Media was the predominant source of pressure, while partners were the least frequently endorsed. While pressure from professionals and peers had small-to-moderate associations with utilization of cosmetic products and procedures, pressure from partners had the largest association with their use. This work frames important future directions for examining the impact of sociocultural pressures on women's willingness to utilize cosmetic products and procedures that are sometimes underregulated and risky for physical and mental health.
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Técnicas Cosméticas , Cosméticos , Humanos , Femenino , Adulto , Persona de Mediana Edad , Adolescente , Adulto Joven , Anciano , Técnicas Cosméticas/psicología , Belleza , Imagen Corporal/psicología , Medios de Comunicación de Masas/estadística & datos numéricos , Remoción del Cabello/psicología , Cirugía Plástica/psicología , Grupo ParitarioRESUMEN
BACKGROUND: Pubic hair grooming involves the partial or complete removal of pubic hair, and it is a common practice among men and women. Grooming is more prevalent in women, who employ various methods such as shaving, waxing and laser removal. However, it is associated with variable rates of post-grooming adverse outcomes including lacerations and sexually transmitted infections (STIs). To the best of our knowledge, this is the first systematic review and meta-analysis comparing women's sexual health outcomes between those who groom and those who don't. METHODS: We followed the MOOSE guidelines and conducted a computerized-based search using (PubMed, Web of Science, Scopus, and Ovid Medline), till June 20th, 2022, for eligible studies using the relevant keywords; (pubic hair grooming) OR (pubic hair removal OR Genital hairless OR Bikini hair removal OR pubic hair depilation). Cross-sectional studies included which compared grooming practices among women in terms of motivation and health outcomes. Women's satisfaction and incidence of STIs were pooled as standardized mean difference (SMD) and odds ratio (OR) respectively. RESULTS: Twenty-Two cross-sectional studies were included in our review with 73,091 participant.The odds of having gram-negative gonorrheal and chlamydial infection in Pubic hair groomers were found to be statistically significant (OR = 1.55, 95% CI [1.31, 1.84], P < 0.001) (OR = 1.56, 95% CI [1.32, 1.85], P < 0.001] respectively. There was no difference between groomer and non-groomer women regarding viral infections such as genital herpes (OR = 1.40, 95% CI [0.56, 3.50], P = 0.47) and Condyloma acuminata (OR = 1.75, 95% CI [0.51, 6.01], P = 0.37). The most common grooming side effect is genital itching (prevalence = 26.9%, P < 0.001). Non-electrical razor (prevalence = 69.3%, P < 0.001) is the most common grooming method. White women (prevalence = 80.2%, P < 0.001) remove pubic hair more frequently compared to black women (prevalence = 12.2%, P < 0.001). Women practice complete grooming (50.3%, P < 0.001) of the pubic hair more frequently than partial grooming (33.1%, P < 0.001). There are no differences in women's satisfaction between the two groups (SMD = 0.12, 95% CI [-0.16, 0.40], P = 0.39). CONCLUSION: This review aligns with previous observational studies regarding sexual health outcomes of pubic hair grooming. There is a need to raise awareness among women regarding the safe practice of pubic hair grooming, emphasizing the clarification of hazards and benefits.
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Remoción del Cabello , Salud Sexual , Enfermedades de Transmisión Sexual , Humanos , Femenino , Remoción del Cabello/métodos , Enfermedades de Transmisión Sexual/epidemiología , Salud de la Mujer , CabelloRESUMEN
Penile inversion vaginoplasty (PIV) is a gender-affirming surgical procedure where the skin of the penis and scrotum is reconstructed into the neovaginal lining. To prevent hair-bearing skin from becoming incorporated into the neovaginal canal, transgender patients are encouraged to undergo hair removal of their external genitalia. The goal of this preoperative hair removal is to minimize the risk of potential hair-related complications after vaginoplasty. To better support patients seeking preoperative hair removal and identify current treatment barriers, we surveyed patients about their progress and satisfaction with hair removal. A cross-sectional survey was constructed to assess patient experiences with hair removal in advance of PIV. Sixty-seven patients met the inclusion criteria, of which 46 participated (68.7%). Both laser hair removal (LHR) and electrolysis were used. Although all patients had completed some preoperative hair removal at the time of survey (average of 14 sessions), the cohort completed only two-thirds of their total expected hair clearance. Multiple peri-procedural pain management therapies were employed, but overall satisfaction with pain management was low (57.4 ± 5.0 out of 100). LHR was associated with significantly lower procedural pain compared to electrolysis (p < .001). The average global satisfaction with the hair removal process was 57.9 ± 5.7 and incidents of mistreatment were associated with a statistically significant reduction in overall satisfaction (p = .02). Most patients felt that hair removal was important prior to surgery. Overall, LHR and electrolysis were both utilized as effective preoperative hair removal modalities; however, LHR has better pain tolerability than electrolysis.
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Remoción del Cabello , Satisfacción del Paciente , Pene , Humanos , Remoción del Cabello/métodos , Masculino , Femenino , Adulto , Pene/cirugía , Estudios Transversales , Vagina/cirugía , Cirugía de Reasignación de Sexo/métodos , Persona de Mediana Edad , Adulto Joven , Cuidados Preoperatorios/métodosRESUMEN
BACKGROUND: Several different parameters play a role in the transition of hair follicles to the anagen phase, with the role of androgens, progesterone, and estrogen hormones and receptors being significant. OBJECTIVES: The effectiveness of laser hair removal (LHR) and pain tolerance during procedure were investigated during 3 different phases of the menstrual cycle. METHODS: Forty-eight axillae were randomly divided into 3 groups: menstruation, ovulation, and luteal. Three laser sessions were performed on each axilla at a 1-month interval. Blood hormone levels were measured in the patients. An alexandrite laser was applied during LHR sessions. Before each LHR session and 1 month after the third session, hair follicles in 4-cm2 areas in the center of the axillae were counted. Patients self-assessed the pain they felt during the laser application in each session with a visual pain scale. RESULTS: The average values for hair counting in the groups were as follows (M, menstruation; O, ovulation; L, luteinization): M0 = 47.6, M1 = 27.4, M2 = 16.1, M3 = 9.9; O0 = 41.8, O1 = 21.1, O2 = 13.8, O3 = 8.6; and L0 = 49.4, L1 = 27.1, L2 = 15.1, L3 = 9.8. The average values on the visual analog scale scores in the groups were: M1 = 3.94, M2 = 3.06, M3 = 1.94; O1 = 3.50, O2 = 3.06, O3 = 1.69; and L1 = 3.63, L2 = 2.50, L3 = 1.56. Statistical analysis was conducted with Tukey post hoc analysis after analysis of variance. CONCLUSIONS: The results of LHR are not affected by changes in hormone levels during the menstrual cycle in females. Although not statistically significant, it has been observed that pain tolerance during laser application is lower during the menstruation cycle.
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Remoción del Cabello , Láseres de Estado Sólido , Ciclo Menstrual , Dimensión del Dolor , Humanos , Femenino , Remoción del Cabello/métodos , Adulto , Adulto Joven , Ciclo Menstrual/fisiología , Láseres de Estado Sólido/uso terapéutico , Resultado del Tratamiento , Folículo Piloso , Axila/cirugía , Umbral del Dolor , Dolor Asociado a Procedimientos Médicos/etiología , Dolor Asociado a Procedimientos Médicos/prevención & control , Dolor Asociado a Procedimientos Médicos/diagnósticoRESUMEN
BACKGROUND: Laser hair removal (LHR) is one of the most requested cosmetic procedures worldwide. A rare side effect is the appearance of excess hair around previously treated areas, known as paradoxical hypertrichosis. OBJECTIVES: The aim of this study was to retrospectively identify the cause of this side effect. METHODS: This study included all patients who underwent LHR at our center between November 2018 and November 2020. Alexandrite laser hair removal (HR) or diode laser super hair removal (SHR) was performed in 70% and 30% of cases, respectively. Clinical features and daily habits of patients with and without postlaser hypertrichosis were compared. RESULTS: Of the 7381 patients who received LHR, 25 patients (0.34%) demonstrated an increase in hair growth compared to baseline. Of these 25 patients, 24 had been treated with alexandrite laser HR (P < .01). The most common site was the upper arm, followed by the periareolar area. Daily sun protection was associated with a significantly lower incidence of hypertrichosis (P < .05), as was confirmed and shown to be independent of Fitzpatrick skin type by binary logistic regression analysis (odds ratio = 0.41, P < .05). CONCLUSIONS: In our clinic, we observed paradoxical hypertrichosis after laser hair removal in a small minority of cases, as described by others. We did not observe differences in incidence related to skin type, but daily sun protection and LHR with diode laser SHR were associated with significant reductions in incidence rates. In addition to previously reported common sites, we also identified the periareolar area as a high-risk region.
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Remoción del Cabello , Hipertricosis , Terapia por Láser , Humanos , Hipertricosis/epidemiología , Hipertricosis/etiología , Remoción del Cabello/efectos adversos , Remoción del Cabello/métodos , Estudios Retrospectivos , Extremidad Superior , Rayos Láser , Terapia por Láser/efectos adversosRESUMEN
OBJECTIVE: Demodex folliculorum blepharitis is typically confirmed with lash epilation and microscopic identification of mites. However, mite counts may vary with the epilation technique. As there is no gold standard to epilating lashes for the purposes of mite counts, the aim of this study was to compare three epilation techniques. METHOD: A prospective randomized double-blind study compared three epilation techniques on lashes with cylindrical dandruff. Techniques included (A) direct pulling of the lash; (B) rotating the lash before epilation; and (C) sliding the cylindrical dandruff away, lash rotation, and epilation. Mean mite counts were analyzed using a repeated-measures analysis of variance. RESULTS: Forty (n=40) participants (20 M: 20 F, mean age of 62.3±17.1 years) revealed similar mite counts between right (1.43±1.74) and left (1.35±1.59) eyes ( P =0.63). A significant difference ( P =0.03) in mite count was noted (technique A: 1.05 ± 1.60; technique B 1.76 ± 1.80; and technique C 1.36 ± 1.54) with technique B yielding the highest mite count ( P =0.04). CONCLUSION: Demodex mite count is a key parameter in establishing infestation or to determine treatment efficacy. This study revealed that rotating the lash before epilation yielded the highest mite count. Future studies should report the epilation technique used to allow for study comparisons.
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Blefaritis , Caspa , Infecciones Parasitarias del Ojo , Pestañas , Remoción del Cabello , Infestaciones por Ácaros , Ácaros , Anciano , Animales , Humanos , Persona de Mediana Edad , Blefaritis/terapia , Método Doble Ciego , Infecciones Parasitarias del Ojo/diagnóstico , Infecciones Parasitarias del Ojo/terapia , Infestaciones por Ácaros/diagnóstico , Infestaciones por Ácaros/terapia , Estudios Prospectivos , Masculino , FemeninoRESUMEN
INTRODUCTION: Performing laser hair removal treatments on dark skin is limited by the quantity of melanin within the skin. To minimize side effects, lower values of fluence are selected when using standard 755 or 810 nm diode lasers. However, this approach may limit the effectiveness of the procedure, particularly when treating areas with thin and less pigmented hair, which is often the case in facial regions. To improve results, high-power triple wavelength diode lasers can be used. This study aims to assess the efficacy, safety, and comfort of treatments that remove facial hair with a high-power triple wavelength diode laser (810, 940, and 1060 nm) in static mode on Asian patients with thin and less pigmented hair. MATERIALS AND METHODS: A single-center retrospective cohort study was carried out using a high-power triple wavelength diode laser (810, 940, and 1060 nm), with a 2.7 cm2 spot size, on faces with thin and less pigmented hair. The study comprised 23 subjects with Fitzpatrick skin types IV and V. Effectiveness was measured by counting the hairs that appeared in high-resolution photos taken prior to and following the procedure, in addition to the Global Aesthetic Improvement Scale (GAIS). Furthermore, mathematical 3D simulations were created on the COMSOL Multiphysics® software to allow for comparisons to be made with regard to thermal damage sustained by the hair follicles and epidermal heating. Assessments were also made in relation to side effects. RESULTS: An average of 66% hair reduction was observed. Patient satisfaction was between 4 and 5 points on the GAIS scale, indicating that the treatment was very well received and tolerated. Adverse side effects were not observed. CONCLUSION: It can be concluded that the use of a high-power triple wavelength diode laser (810, 940, and 1060 nm) is safe and effective for the treatment of very fine and less pigmented facial hair on Asian skin. Furthermore, a triple wavelength (810, 940, and 1060 nm) laser is absorbed less by the melanin in the skin, enabling the use of higher fluences in stamping mode, with greater efficacy and safety for darker skin.