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1.
Am J Case Rep ; 24: e942279, 2023 Dec 05.
Artigo em Inglês | MEDLINE | ID: mdl-38051696

RESUMO

BACKGROUND We report a case of late-onset chronic fistula in a decompensated cornea after multiple ocular surgeries and a recent phototherapeutic keratectomy (PTK). CASE REPORT A 73-year-old woman presented to our service with a past ocular history of bilateral chronic angle closure glaucoma and pseudophakic bullous keratopathy in the left eye. Given a history of long-term uncontrolled glaucoma with advanced disc cupping and poor visual potential, the patient underwent multiple palliative procedures, including, most recently, a PTK. Few years later she presented with a spontaneous late onset of slowly appearing corneal leak on fluorescein staining upon routine clinical examination. Corrected distance visual acuity was hand motion and intraocular pressure (IOP) was 40 mmHg in the affected eye. Serial anterior segment optical coherence tomography (AS-OCT) sections were obtained, which aided in understanding the current presentation and revealed distinctive multilayer corneal changes during the healing process. The patient was successfully managed with cyanoacrylate corneal gluing and ocular hypotensive medications, which halted the corneal leak. CONCLUSIONS We report a case of a rare finding of corneal fistula in an eye with multiple previous ocular surgeries, and provide an explanation of the possible etiopathogenesis. We also highlight the pivotal role of AS-OCT for evaluating such cases and stress the importance of early detection of similar subtle leaks in the setting of a formed anterior chamber, which can often be missed, carrying a risk of infection.


Assuntos
Córnea , Doenças da Córnea , Fístula , Lasers de Excimer , Ceratectomia Fotorrefrativa , Idoso , Feminino , Humanos , Córnea/patologia , Córnea/cirurgia , Lasers de Excimer/efeitos adversos , Lasers de Excimer/uso terapêutico , Ceratectomia Fotorrefrativa/efeitos adversos , Ceratectomia Fotorrefrativa/métodos , Tomografia de Coerência Óptica/métodos , Acuidade Visual , Fístula/diagnóstico , Fístula/etiologia , Fístula/terapia , Doença Crônica , Doenças da Córnea/diagnóstico , Doenças da Córnea/etiologia , Doenças da Córnea/terapia , Oftalmopatias/cirurgia
2.
J Cosmet Dermatol ; 21(6): 2360-2373, 2022 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-35253324

RESUMO

BACKGROUND: Segmental vitiligo (SV) is a distinctive variant of vitiligo that is usually resistant to traditional treatments. Therefore, surgical therapies are mainstay of treatment in this type of vitiligo. To date, there is no review article or systematic review that evaluates specifically efficacy of treatment modalities on SV. AIM: To evaluate current evidence regarding efficacy and safety of traditional and surgical treatment modalities in SV. METHODS: We conducted a search in PubMed, Embase, Web of science, and Google Scholar for key words of "vitiligo" AND "segmental" AND "treatment" OR "therapy" OR "surgical treatments" OR "medical treatments" OR "laser" OR "phototherapy". Inclusion criteria were English literature that investigated efficacy of different treatments on three or more cases on SV from January 2000 until July 2021. RESULTS: A total of thirty-four articles were selected for detailed assessment. Different treatment modalities include medical treatment [systemic corticosteroid (SCS), topical CS (TCS), and topical calcineurin inhibitors (TCI)], phototherapy [narrow band-ultraviolet B (NB-UVB), psoralen and UVA (PUVA) and psoralen+solar exposure (PUVASOL)], laser/lights [helium-neon and Excimer laser/light (EL)] and surgical treatments [punch graft (PG), follicular graft, suction blister epidermal grafting (SBEG), spilt-thickness skin graft (STSG), and cultured/non-cultured-melanocytes-keratinocytes transplantation (MKTP)]. CONCLUSION: There were few randomized controlled trials (RCT) evaluating the efficacy of treatments in SV. Therefore, future high quality studies are required for better assessment of various treatment modalities in SV. Results of current evidence indicate resistance of SV to traditional therapies unless in patients with short duration of vitiligo. Therefore, surgical interventions are the first-line of treatment in refractory cases, long-standing disease, or presence of leukotrichia in depigmented patches.


Assuntos
Furocumarinas , Vitiligo , Humanos , Lasers de Excimer/efeitos adversos , Melanócitos/transplante , Fototerapia/efeitos adversos , Resultado do Tratamento , Vitiligo/cirurgia
3.
Dermatol Ther ; 34(5): e15079, 2021 09.
Artigo em Inglês | MEDLINE | ID: mdl-34333826

RESUMO

The objective of this study was to evaluate optimal treatment regimen of 308-nm excimer laser for palmoplantar pustulosis (PPP). 77 patients with PPP were randomly assigned to receive low dose (2-fold of MED as initial dose), medium dose (4-fold of MED as initial dose) and high dose group (6-fold of MED as initial dose) and the MED of each patient depended on the ultraviolet light sensitivity of individual's skin which ranged from 0.1 to 0.25 J/cm2 . All group received 308-nm excimer laser treatment three times weekly for 8 weeks. Clinical evaluation based on the Palmoplantar Pustular Psoriasis Area and Severity Index (PP-PASI) and Dermatology Life Quality Index (DLQI) score. All treatment groups achieved satisfied efficacy at the end of the treatment period with more obvious reduction of PP-PASI score in high dose group (16.05 ± 4.26) than low and medium dose group (23.67 ± 7.16, p < 0.01; 22.04 ± 5.74, p < 0.01). Improvement of DLQI score was greatest at week 4 for all patients in each group, while DLQI improved more quickly in high/medium dose group than low dose group. Adverse effects of erythema, blistering and erosions were more common with the higher dose regimen. High dose of 308-nm excimer laser could achieve a better efficacy in PPP treatment, reduce the severity of the disease in patients and improve the life quality of patients. Meantime, the incidence of adverse reactions should be aware of and it's necessary to evaluate the skin and lesion type before the dose selection.


Assuntos
Exantema , Psoríase , Terapia Ultravioleta , Humanos , Lasers de Excimer/efeitos adversos , Estudos Prospectivos , Psoríase/diagnóstico , Resultado do Tratamento
4.
Photodermatol Photoimmunol Photomed ; 36(6): 460-469, 2020 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-32745343

RESUMO

BACKGROUND: The excimer laser/light (EL) has been reported to be effective for alopecia areata (AA), but its treatment response has not been systematically reviewed. OBJECTIVE: To determine the treatment response and safety of EL treatment of AA. METHODS: A comprehensive search of the Medline, EMBASE, Cochrane library, and Web of Science (from inception to December 31, 2018) was conducted to identify prospective clinical studies assessing the treatment response of EL for AA. The primary outcome was cosmetically acceptable hair regrowth (hair regrowth ≥75%); random-effects meta-analyses using generic inverse variance weighting were performed to estimate treatment responses. The study was registered with PROSPERO (CRD42019121092). RESULTS: Of 52 records initially identified, 13 full-text articles were finally assessed in terms of eligibility. A total of 9 prospective clinical studies (129 AA patients) including 5 controlled clinical trials were identified. Cosmetically acceptable hair regrowth was achieved in 50.2% (95% confidence interval 31.5%-68.9%; 8 studies). EL treatment significantly improved hair regrowth compared with untreated controls (relative risk 7.83; 95% confidence interval 2.11-29.11; 5 controlled clinical trials). No serious adverse effect was noted. CONCLUSIONS: EL treatment appeared to produce a favorable therapeutic response in AA patients. The use of EL should be encouraged for AA patients with the advantages of the non-invasiveness and no systemic effect.


Assuntos
Alopecia em Áreas/radioterapia , Lasers de Excimer/uso terapêutico , Terapia com Luz de Baixa Intensidade , Cabelo/crescimento & desenvolvimento , Humanos , Lasers de Excimer/efeitos adversos , Terapia com Luz de Baixa Intensidade/efeitos adversos , Resultado do Tratamento
5.
Dermatol Ther ; 33(3): e13408, 2020 05.
Artigo em Inglês | MEDLINE | ID: mdl-32304121

RESUMO

Segmental vitiligo (SV) is considered to be relatively less responsive form of vitiligo to medical treatment. While excimer light (EL) has shown great promise in treating localized vitiligo especially on face and neck, its efficacy in SV is not reported so commonly. We conducted a retrospective study on patients of childhood SV who had received EL therapy from January 2016 to December 2018 at our institute. Data of all such cases who had received at least 10 doses of EL treatment or achieved complete repigmentation were selected for analysis. Records of 26 children with SV satisfied the selection criteria. Excellent response (>75% repigmentation) was documented in 65.4% (17/26) patients with 7.7% (2/26) patients showing partial (50%-75%) repigmentation. Response to treatment was seen to correlate inversely with the duration of SV. Patients with SV of <6 months reported better results with all 10 cases achieving complete or near complete (>75%) repigmentation. In contrast, only 44% patients (7/16) with disease duration of >6 months were seen to have achieved >75% repigmentation.


Assuntos
Vitiligo , Criança , Terapia Combinada , Humanos , Lasers de Excimer/efeitos adversos , Fototerapia , Estudos Retrospectivos , Resultado do Tratamento , Vitiligo/diagnóstico , Vitiligo/terapia
6.
J Drugs Dermatol ; 19(2): 176-183, 2020 Feb 01.
Artigo em Inglês | MEDLINE | ID: mdl-32129962

RESUMO

Background: Phototherapy is a safe and effective modality for the treatment of mild to moderate psoriasis. Objectives: To compare the efficacy and safety of the 650-microsecond, 1064-nm pulsed YAG laser with the excimer laser for the treatment of mild to moderate psoriasis vulgaris of the arms and legs. Methods: Eligible subjects (n=15) aged 54.3 ± 11.7 years enrolled in a randomized, investigator-blinded study. Psoriatic plaques on one side of the body were treated with the 650-microsecond laser and plaques on the other side were treated with the 308-nm excimer laser. Subjects made up to 15 visits, twice weekly, or fewer if full clearance was achieved. Efficacy and tolerance were evaluated by the mPASI scores and local skin reactions, respectively. Results: Both devices showed efficacy in treating psoriatic plaques. Differences between the two devices were not significant for redness, thickness, scaliness, mPASI scores for arms and legs, and overall mPASI scores for the treated psoriatic plaques on each side of the body. The investigator-assessed scores for erosion/ulceration, vesicles, erythema, scaling, edema, and atrophy were low and identical for both sides of the body. Conclusion: The efficacy and tolerance of the 650-microsecond laser is equivalent to that of the excimer laser for the treatment of mild to moderate psoriasis vulgaris of the arms and legs. J Drugs Dermatol. 2020;19(2)176-183. doi:10.36849/JDD.2020.4769


Assuntos
Lasers de Excimer/uso terapêutico , Lasers de Estado Sólido/uso terapêutico , Psoríase/cirurgia , Adulto , Idoso , Superfície Corporal , Feminino , Humanos , Lasers de Excimer/efeitos adversos , Lasers de Estado Sólido/efeitos adversos , Masculino , Pessoa de Meia-Idade , Índice de Gravidade de Doença
7.
Dermatol Ther ; 30(5)2017 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-28833900

RESUMO

Oral lichen planus (OLP) is a chronic inflammatory disease, has prolonged courses, repeated attacks and resistance to treatment. The traditional narrow spectrum UVB treatment has an established efficacy on skin lichen planus, and high safety. However, most of ultraviolet phototherapy devices have a huge volume, thereby cannot be used in the treatment of OLP. Lymphocytic infiltration is evident in the lesions of lichen planus, and the direct irradiation of 308-nm excimer laser can induce apoptosis of the T lymphocytes in skin lesions, thereby has a unique therapeutic effect on the diseases involving T lymphocytes. This study aims to investigate the efficacy of 308-nm excimer laser in the treatment of OLP. A total of six OLP patients were enrolled into this study, and further pathological diagnosis was conducted, then 308-nm excimer laser was used in the treatment. The efficacy of 308-nm excimer laser in the treatment of OLP was satisfactory. The clinical symptoms of five patients were significantly improved. In two patients, the erosion surface based on congestion and the surrounding white spots completely disappeared, and clinical recovery was achieved. Three patients achieved partial remission, that is, the erosion surface healed, congestion and white spot area shrunk by more than 1/2 of the primary skin lesions. In the remaining one patient, the erosion surface had not completely healed after treatment, and congestion and white spot area shrunk by less than 1/2 of the primary skin lesions. Only one patients had developed mild pain during the treatment, and this symptom alleviated by itself. The 308-nm excimer laser therapy can serve as a safe and effective treatment for OLP.


Assuntos
Apoptose/efeitos da radiação , Lasers de Excimer/uso terapêutico , Líquen Plano Bucal/radioterapia , Adulto , Idoso , Feminino , Humanos , Lasers de Excimer/efeitos adversos , Líquen Plano Bucal/patologia , Masculino , Pessoa de Meia-Idade , Indução de Remissão/métodos , Linfócitos T/efeitos da radiação , Resultado do Tratamento
8.
J Dermatol ; 43(12): 1412-1416, 2016 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-27130559

RESUMO

Three hundred and eight nanometer excimer light therapy has recently been reported to be effective against patchy alopecia areata (AA) in several clinical studies. However, these studies only included a few patients with severe forms of AA, and all of them exhibited poor outcomes. We further investigated the use of excimer light as a therapeutic option for cases of alopecia universalis (AU) that are resistant to other treatments. Eleven treatment-resistant AU patients were treated with a 308-nm excimer light at 2-week intervals for more than 16 sessions. Four patients achieved good responses and two patients exhibited poor responses. Three patients had Japanese skin type 1 and all of them achieved good responses. The radiation dose was increased until the patients exhibited marked erythema. The patients with Japanese skin type 3 who achieved good responses exhibited strong pigmentation at the irradiated sites. In conclusion, 308-nm excimer light therapy has significant effects on some AU patients who are resistant to other treatments and may be an alternative therapeutic option for AU. During the treatment of AU, high doses of radiation should be administrated until a strong inflammatory skin reaction is seen.


Assuntos
Alopecia/terapia , Lasers de Excimer/uso terapêutico , Terapia com Luz de Baixa Intensidade/métodos , Adulto , Idoso , Eritema/etiologia , Feminino , Humanos , Hiperpigmentação/etiologia , Japão , Lasers de Excimer/efeitos adversos , Terapia com Luz de Baixa Intensidade/efeitos adversos , Masculino , Pessoa de Meia-Idade , Pigmentação da Pele/efeitos da radiação , Resultado do Tratamento , Adulto Jovem
9.
Am J Clin Dermatol ; 17(2): 125-33, 2016 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-26872953

RESUMO

Psoriasis is an inflammatory skin condition that affects approximately 2 % of people worldwide. Topical treatments, systemic treatments, biologic agents, and phototherapy are all treatment options for psoriasis. Ultraviolet (UV) B phototherapy is most appropriate for patients with >10 % affected body surface area who have not responded to topical treatments. This review outlines the use, dosage, safety, and efficacy of narrowband UVB (NB-UVB) and targeted phototherapy. NB-UVB and excimer laser are effective treatment options for psoriasis; they are administered two to three times weekly until clearance followed by maintenance treatment before discontinuation. Long-term data on NB-UVB indicate that it has a good safety profile. NB-UVB is commonly used with adjunctive topical treatments such as emollients, calcipotriene, cortico-steroids, retinoids, and tar. NB-UVB can be used in selected patients with traditional systemic agents such as methotrexate, mycophenolate mofetil, and cyclosporine, although the duration of the combined treatment should be kept to a minimum and patients need to be closely monitored. Acitretin can be safely used with phototherapy, but robust data on the combination use of biologic agents or phosphodiesterase inhibitors with phototherapy are lacking.


Assuntos
Guias de Prática Clínica como Assunto , Psoríase/radioterapia , Pele/efeitos da radiação , Terapia Ultravioleta/métodos , Acitretina/uso terapêutico , Administração Tópica , Terapia Combinada/efeitos adversos , Terapia Combinada/métodos , Contraindicações , Fármacos Dermatológicos/uso terapêutico , Relação Dose-Resposta à Radiação , Humanos , Interleucina-17/antagonistas & inibidores , Interleucina-17/imunologia , Ceratolíticos/uso terapêutico , Lasers de Excimer/efeitos adversos , Lasers de Excimer/normas , Lasers de Excimer/uso terapêutico , Terapia com Luz de Baixa Intensidade/efeitos adversos , Terapia com Luz de Baixa Intensidade/métodos , Metotrexato/uso terapêutico , Terapia PUVA , Inibidores de Fosfodiesterase/uso terapêutico , Psoríase/tratamento farmacológico , Fator de Necrose Tumoral alfa/antagonistas & inibidores , Fator de Necrose Tumoral alfa/imunologia , Terapia Ultravioleta/efeitos adversos
10.
Am J Clin Dermatol ; 17(1): 23-32, 2016 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-26520641

RESUMO

BACKGROUND: Various phototherapy methods are used to treat vitiligo; however, the recent emergence of new devices has heightened debate concerning the best treatment method. OBJECTIVE: We aimed to systematically review and meta-analyze published data comparing the efficacy and adverse effects of monochromatic excimer lamps versus excimer laser and narrowband ultraviolet B (NB-UVB) in treating vitiligo. METHODS: A systematic search of PubMed, EMBASE, LILACS, Cochrane Central Register of Controlled Trials (CENTRAL), and clinical trials registries identified randomized controlled trials that included vitiligo patients, regardless of age, sex, or study language. We evaluated studies comparing excimer lamps with excimer laser or NB-UVB phototherapy. RESULTS: The review included six studies (411 patients, 764 lesions). No study found significantly different efficacy between excimer lamps and excimer laser using the outcomes of ≥50% repigmentation [risk ratio (RR) = 0.97, 95% confidence interval (CI) 0.84-1.11] and ≥75% repigmentation (RR = 0.96, 95% CI 0.71-1.30). Likewise, no study found significant differences between excimer lamps and NB-UVB (RR = 1.14, 95% CI 0.88-1.48 for ≥50% repigmentation; RR = 1.81, 95% CI 0.11-29.52 for ≥75% repigmentation). Adverse effects were mild, including pruritus, burning sensation, and dryness, none of which interrupted treatment. CONCLUSIONS: To our knowledge, this is the first systematic review of the efficacy and safety of excimer lamp treatment for vitiligo. Excimer lamps, excimer laser, and NB-UVB are all safe and effective in repigmentation of vitiligo lesions. Safety, effectiveness, and cost are considerations when choosing treatment. PROSPERO REGISTRATION NUMBER: CRD42014015237.


Assuntos
Lasers de Excimer/uso terapêutico , Terapia com Luz de Baixa Intensidade/instrumentação , Fototerapia/instrumentação , Vitiligo/terapia , Feminino , Humanos , Lasers de Excimer/efeitos adversos , Terapia com Luz de Baixa Intensidade/efeitos adversos , Masculino , Fototerapia/efeitos adversos , Ensaios Clínicos Controlados Aleatórios como Assunto , Pigmentação da Pele/efeitos da radiação , Resultado do Tratamento , Terapia Ultravioleta/efeitos adversos , Vitiligo/radioterapia
11.
Dermatol Ther ; 28(6): 383-9, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26358764

RESUMO

Vitiligo is a difficult disease to treat, socially stigmatizing its patients. Monochromatic excimer light (MEL) was developed for use in dermatology and adapted for the treatment of vitiligo. Comparing the efficacy of MEL versus topical combination therapy of vitamin D3 analogue and steroid in the treatment of nonsegmental vitiligo. Forty-four patients with localized and stable nonsegmental vitiligo participated in the present study. In each patient, two lesions were selected and divided randomly into two groups, group A was treated with daily topical combination of calcipotriol and betamethasone and group B was treated with biweekly sessions of MEL for 3 months. Efficacy based on repigmentation percentages were blindly evaluated by two independent physicians and patient's satisfaction. There was significant improvement in both treatment modalities at the end of the study, but without significant differences in both groups. There was a significant difference between both groups regarding the onset of repigmentation (p-value < 0.05), whereas group B showed early sign of repigmentation in first 4 weeks of treatment in 16 patients versus 7 patients in group A. Both treatment modalities offered encouraging results and both are promising lines for the treatment of vitiligo.


Assuntos
Betametasona/administração & dosagem , Calcitriol/análogos & derivados , Fármacos Dermatológicos/administração & dosagem , Glucocorticoides/administração & dosagem , Lasers de Excimer/uso terapêutico , Terapia com Luz de Baixa Intensidade/instrumentação , Pigmentação da Pele/efeitos dos fármacos , Pigmentação da Pele/efeitos da radiação , Vitiligo/terapia , Administração Cutânea , Adolescente , Adulto , Betametasona/efeitos adversos , Calcitriol/administração & dosagem , Calcitriol/efeitos adversos , Criança , Terapia Combinada , Fármacos Dermatológicos/efeitos adversos , Combinação de Medicamentos , Egito , Feminino , Glucocorticoides/efeitos adversos , Humanos , Lasers de Excimer/efeitos adversos , Terapia com Luz de Baixa Intensidade/efeitos adversos , Masculino , Pessoa de Meia-Idade , Fatores de Tempo , Resultado do Tratamento , Vitiligo/diagnóstico , Vitiligo/fisiopatologia , Adulto Jovem
12.
J Drugs Dermatol ; 12(4): 487-9, 2013 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-23652902

RESUMO

Little is known about the safety and effectiveness of excimer laser therapy when used in conjunction with other therapies in the treatment of mycosis fungoides (MF) lesions. We describe the use of adjunctive excimer laser therapy in combination with psoralen plus ultraviolet A (PUVA) and oral bexarotene for the treatment of recalcitrant and sanctuary plaques in a patient with MF. In our patient, this regimen successfully induced clinical and histologic resolution in MF plaques with minimal side effects limited to mild, short-lived tenderness and, rarely, local erythema. Our experience suggests that adjunctive excimer laser therapy with PUVA and oral bexarotene has the potential to be a safe, well-tolerated, and effective focal treatment regimen for cutaneous MF lesions.


Assuntos
Lasers de Excimer/uso terapêutico , Micose Fungoide/terapia , Terapia PUVA/métodos , Neoplasias Cutâneas/terapia , Tetra-Hidronaftalenos/uso terapêutico , Administração Oral , Anticarcinógenos/administração & dosagem , Anticarcinógenos/efeitos adversos , Anticarcinógenos/uso terapêutico , Bexaroteno , Terapia Combinada , Ficusina/administração & dosagem , Seguimentos , Humanos , Lasers de Excimer/efeitos adversos , Masculino , Pessoa de Meia-Idade , Micose Fungoide/patologia , Terapia PUVA/efeitos adversos , Fármacos Fotossensibilizantes/administração & dosagem , Neoplasias Cutâneas/patologia , Tetra-Hidronaftalenos/administração & dosagem , Tetra-Hidronaftalenos/efeitos adversos
13.
Lasers Med Sci ; 28(3): 1035-41, 2013 May.
Artigo em Inglês | MEDLINE | ID: mdl-22892613

RESUMO

Vitiligo is a relatively common acquired disorder, characterized by progressive loss of melanocytes from the epidermis and the epidermal appendages. The disease is associated with considerable morbidity because of a major impact on the quality of life. The treatment for vitiligo is generally unsatisfactory and challenging. There are a variety of therapeutic possibilities including topical corticosteroids, topical calcineurin inhibitors, as well as phototherapy with Psoralen plus UVA (PUVA), narrow-band UVB, and a 308-nm excimer laser and/or lamps. Furthermore, surgical methods encompass grafting and transplantation while depigmentation treatments and psychological support may also be considered. The objective is to assess the effect of the 380-nm excimer laser in the treatment of vitiligo based on the available studies and case series. We searched the relevant literature about vitiligo and excimer laser published between 1990 and 2012 using the MEDLINE database. We reviewed all relevant articles about 308-nm excimer laser and light sources assessing their efficacy in the management of vitiligo as well as their side effects. The value of combination treatment methods was also analyzed. The available studies provide strong evidence that the excimer laser represents the most effective approach to treat vitiligo compared to ordinary phototherapy. Excimer laser is relatively safe and effective for localized disease. UV-sensitive areas respond best as well as a short duration of the disease. More frequent treatments achieve better results. Compared to other treatment modalities, the excimer laser most likely constitutes the treatment of choice for localized vitiligo. Its efficacy can be further improved in combination with other therapies such as corticosteroids, pimecrolimus, or tacrolimus.


Assuntos
Lasers de Excimer/uso terapêutico , Terapia Ultravioleta/métodos , Vitiligo/radioterapia , Ensaios Clínicos como Assunto , Terapia Combinada , Humanos , Lasers de Excimer/efeitos adversos , Fotoquimioterapia , Pigmentação da Pele/efeitos dos fármacos , Pigmentação da Pele/efeitos da radiação , Resultado do Tratamento , Terapia Ultravioleta/efeitos adversos , Vitiligo/tratamento farmacológico , Vitiligo/patologia
14.
Lasers Med Sci ; 28(4): 1119-24, 2013 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-23053247

RESUMO

Psoriasis is a chronic inflammatory multisystem disease involving skin and joints affecting 1-3 % of the world population. The 308-nm excimer laser has been recently used in the treatment of psoriasis, especially localized psoriasis of scalp and palm and soles. The objective of the study is to evaluate the therapeutic efficacy and safety of a 308-nm excimer laser for the treatment of scalp and palmoplantar psoriasis. A total of 41 adult patients (25 males and 16 females) were enrolled in this study, of which 26 patients had lesions localized to scalp, and 15 patients had involvement of palm and soles. The mean age was 44.5 years (range 18-73). And, the mean duration of psoriasis in our patients was 15 years. They were treated with a 308-nm excimer laser. The initial dose was based on multiples of a predetermined minimal erythema dose, twice weekly for a maximum 12 weeks. Twenty-two of the 23 patients with scalp psoriasis showed improvement, while one patient showed no change; none experienced worsening of symptoms. The mean minimal erythema dose (MED) was found to be 383 mJ/cm(2) (range 180-650 mJ/cm(2)). The cumulative dose of irradiation was 1,841 mJ/cm(2) (range 600-2,500). The percentage improvement from baseline in PSSI score was 78.57 %. Side effects were seen in 20 patients (86.96 %) mainly in the form of erythema. Four patients developed mild relapse at the end of 6 months after the therapy. In 15 patients with palmoplantar psoriasis, the mean MED was found to be 415 mJ/cm(2) (range 200-950 mJ/cm(2)). The cumulative dose of irradiation was 28.4-115.5 J cm(2) (mean 59.1 J cm(2)). The mean number of treatments to achieve clearance (equal to 90 % reduction of PSI score) was 16. Two patients relapsed at the end of 6 months after the therapy. The 308-nm excimer laser is an effective, safe, easy, and relatively quicker method for the treatment of psoriasis at difficult to treat sites, with good results in a somewhat short time.


Assuntos
Lasers de Excimer/uso terapêutico , Terapia com Luz de Baixa Intensidade/métodos , Psoríase/radioterapia , Adolescente , Adulto , Idoso , Feminino , , Mãos , Humanos , Lasers de Excimer/efeitos adversos , Terapia com Luz de Baixa Intensidade/efeitos adversos , Masculino , Pessoa de Meia-Idade , Psoríase/patologia , Couro Cabeludo , Índice de Gravidade de Doença , Resultado do Tratamento , Adulto Jovem
15.
Cutis ; 90(3): 149-54, 2012 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-23094316

RESUMO

UVB phototherapy is an effective treatment modality for psoriasis. For patients with localized plaque-type lesions, 308-nm excimer laser phototherapy offers rapidly delivered, targeted, high UVB doses, while sparing adjacent healthy skin. We aimed to compare the advantages and disadvantages of the 308-nm xenon chloride (XeCI) UVB excimer laser with nontargeted broadband UVB (BB-UVB), narrowband UVB (NB-UVB), and psoralen plus UVA (PUVA) phototherapies. A PubMed search for studies evaluating the efficacy and safety of the laser versus nontargeted phototherapeutic modalities was conducted. Three prospective nonrandomized studies compared NB-UVB with excimer laser phototherapy. No head-to-head studies were found for BB-UVB or PUVA compared to excimer laser. Both the 308-nm excimer laser and nontargeted phototherapies were found to effectively clear localized psoriasis. Although it is proposed that excimer laser exclusively treats diseased skin with better response rates, split-body trials revealed no differences. Long-term studies are necessary to compare the effects of high-dose excimer laser regimens with nontargeted phototherapies.


Assuntos
Lasers de Excimer/uso terapêutico , Psoríase/terapia , Terapia Ultravioleta/métodos , Humanos , Lasers de Excimer/efeitos adversos , Terapia PUVA/efeitos adversos , Terapia PUVA/métodos , Psoríase/patologia , Resultado do Tratamento , Terapia Ultravioleta/efeitos adversos
16.
J Dermatol ; 39(7): 608-12, 2012 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-22506614

RESUMO

Ultraviolet (UV) irradiation induces skin erythema, but it is not clear which factors have the greatest effects on UV sensitivity. Six healthy Korean adult men were enrolled and their melanin index (MI) and increment of erythema index (ΔEI) were measured. In each individual, 12 different sites were selected and 36 spots were irradiated with a single shot of monochromatic excimer laser with a dose of 350 mJ/cm(2) . The sites were categorized into three groups based on the cumulative sun exposure: UZ, unexposed zones; FEZ, frequently exposed zones; and IEZ, intermittently exposed zones. The sun exposure indexes (SEI) were also calculated based on previously described methods. ΔEI, MI and SEI were measured and calculated. The ΔEI of UZ was significantly higher than that of FEZ, but lower than that of IEZ. In general, there was a significant relationship between ΔEI and MI (R(2) = 0.135). However, IEZ did not show significant results. In contrast, there was a stronger relationship between ΔEI and SEI (R(2) = 0.344). Overall, the values were significantly higher for the SEI (0.541 [UZ], 0.281 [IEZ] and 0.228 [FEZ]) than for MI (0.311 [UZ], 0.011 [IEZ] and 0.073 [FEZ]). There were significant site variations in UV sensitivity along with skin pigmentation. In addition, significant differences were observed according to the exposure frequency. The SEI was found to be strongly correlated with UV sensitivity. These results suggest that the induced level of pigmentation above the constitutive level will be a better indicator for UV sensitivity than baseline MI.


Assuntos
Eritema/etiologia , Lasers de Excimer/efeitos adversos , Pigmentação da Pele/efeitos da radiação , Adulto , Povo Asiático , Eritema/metabolismo , Humanos , Lasers de Excimer/uso terapêutico , Terapia com Luz de Baixa Intensidade/efeitos adversos , Masculino , Melaninas/metabolismo , Pessoa de Meia-Idade , Tolerância a Radiação/fisiologia , República da Coreia , Pigmentação da Pele/fisiologia , Luz Solar
17.
Skin Res Technol ; 18(2): 212-8, 2012 May.
Artigo em Inglês | MEDLINE | ID: mdl-22092772

RESUMO

BACKGROUND: Phototherapy is a cornerstone in treatment of moderate-to-severe psoriasis. Narrow-band UVB has been shown to be a potent therapeutic tool. To reduce the potential carcinogenic risk, targeted phototherapy has been developed using excimer lasers or excimer light devices (ELD). OBJECTIVE: The role of excimer light therapy in practice and modes of action are not completely understood. We wanted to investigate a 307 nm ELD for plaque psoriasis in comparison with topical dithranol therapy twice daily. METHODS: We conducted a pilot trial in 21 adult patients with moderate plaque-type psoriasis. Two target lesions of comparable size and plaque-modified Psoriasis Activity and Severity Index (PSI) scores were selected. Lesion A was treated three times using a newly developed 307 nm ELD. Lesion B was treated twice daily with dithranol ointment. The mean period of treatment was 9 days. Clinical evaluation included PSI scores, safety, time needed to treat, and patient's satisfaction. In addition, fluorescence-remission imaging technique was used for objective evaluation. RESULTS: Both treatments improved the PSI score (mean 3.0 points). The treatments were safe but ELD was more convenient for patients. The time needed to treat the target lesion was significantly shorter with ELD. Targeted UVB therapy normalized NADH fluorescence in lesional skin. CONCLUSIONS: The 307 nm excimer light therapy for plaque type psoriasis was equipotent to twice daily topical dithranol. Efficacy, safety, and convenience suggest that targeted UVB therapy with quasi monochromatic light is a new useful treatment option for patients with limited psoriatic plaques.


Assuntos
Antralina/administração & dosagem , Terapia com Luz de Baixa Intensidade/métodos , Psoríase/tratamento farmacológico , Psoríase/radioterapia , Terapia Ultravioleta/métodos , Administração Tópica , Adulto , Idoso , Idoso de 80 Anos ou mais , Antralina/efeitos adversos , Fármacos Dermatológicos/administração & dosagem , Fármacos Dermatológicos/efeitos adversos , Feminino , Humanos , Lasers de Excimer/efeitos adversos , Lasers de Excimer/uso terapêutico , Terapia com Luz de Baixa Intensidade/efeitos adversos , Terapia com Luz de Baixa Intensidade/instrumentação , Masculino , Pessoa de Meia-Idade , Projetos Piloto , Índice de Gravidade de Doença , Terapia Ultravioleta/efeitos adversos , Terapia Ultravioleta/instrumentação
19.
Actas Dermosifiliogr ; 102(3): 175-86, 2011 Apr.
Artigo em Espanhol | MEDLINE | ID: mdl-21310368

RESUMO

Novel treatment strategies and new information concerning the management of moderate to severe psoriasis justify a reassessment of the role of the classic therapies in this setting. This consensus statement evaluates narrowband UV-B therapy, which is currently considered the phototherapy option of choice in psoriasis because of its risk-to-benefit ratio. The role of excimer laser and photodynamic therapies are also discussed. These targeted therapies are still only available in a small number of centers in Spain and are used principally in the treatment of localized and recalcitrant forms of psoriasis. We discuss the efficacy and safety of phototherapy as well as treatment regimens, combination therapy, and clinical considerations relating to the characteristics of the patient or the disease.


Assuntos
Lasers de Excimer/uso terapêutico , Terapia com Luz de Baixa Intensidade/métodos , Fotoquimioterapia/métodos , Psoríase/terapia , Terapia Ultravioleta/métodos , Acitretina/uso terapêutico , Corticosteroides/administração & dosagem , Corticosteroides/uso terapêutico , Adulto , Criança , Ensaios Clínicos como Assunto , Terapia Combinada , Comorbidade , Contraindicações , Eritema/etiologia , Feminino , Humanos , Lasers de Excimer/efeitos adversos , Terapia com Luz de Baixa Intensidade/efeitos adversos , Neoplasias Induzidas por Radiação/etiologia , Neoplasias Induzidas por Radiação/prevenção & controle , Terapia PUVA/efeitos adversos , Terapia PUVA/métodos , Fotoquimioterapia/efeitos adversos , Gravidez , Complicações na Gravidez/radioterapia , Psoríase/tratamento farmacológico , Psoríase/radioterapia , Dosagem Radioterapêutica , Terapia Ultravioleta/efeitos adversos
20.
Photodermatol Photoimmunol Photomed ; 27(1): 24-9, 2011 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-21198879

RESUMO

BACKGROUND: Numerous modalities have been used to treat vitiligo in children. Up to now, phototherapy and topical corticosteroids are the most commonly used treatments for adult vitiligo but studies evaluating the efficacy of these treatments in the pediatric population remain insufficient. OBJECTIVE: This study was a retrospective review to evaluate the efficacy and safety of 308-nm excimer laser treatment in 30 childhood vitiligo patients. METHODS: Thirty vitiligo patients with 40 vitiligo patches were evaluated after the cessation of 308-nm excimer laser treatment. RESULTS: Seventeen patients (56.7%) with 20 patches (50%) achieved an acceptable degree (>50%) of repigmentation at the end of the treatment, with five patches (12.5%) showing >75% of repigmentation. The treatment response showed anatomical preferences, favoring the face, neck and trunk. However, the treatment response did not correlate to the cumulative dose or duration of treatment. Side effects occurred in nine patients, but were transient and minimal. CONCLUSION: The results of this study shows that the 308-nm excimer laser can be an effective and promising device for the treatment of various vitiligo types, other than generalized, in childhood.


Assuntos
Lasers de Excimer/uso terapêutico , Terapia com Luz de Baixa Intensidade , Vitiligo/radioterapia , Adolescente , Queimaduras/etiologia , Criança , Pré-Escolar , Feminino , Foliculite/etiologia , Humanos , Lasers de Excimer/efeitos adversos , Terapia com Luz de Baixa Intensidade/efeitos adversos , Masculino , Estudos Retrospectivos , Resultado do Tratamento
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