Navegando por Palavras-chave "laser therapy"
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- ItemAcesso aberto (Open Access)Analgesia com laser terapêutico após tonsilectomia(Sociedade de Pediatria de São Paulo, 2010-09-01) Neiva, Felipe Costa [UNIFESP]; Vieira, Fernando Mirage Jardim [UNIFESP]; Figueiredo, Claudia Regina [UNIFESP]; Stamm, Aldo Eden Cassol [UNIFESP]; Weckx, Luc Louis Maurice [UNIFESP]; Pignatari, Shirley Shizue Nagata [UNIFESP]; Universidade Federal de São Paulo (UNIFESP)OBJECTIVE: The postoperative period of a tonsillectomy is usually very painful, requiring the use of pain-relieving drugs. The aim of this study was to evaluate the efficacy of low-level laser therapy in post-tonsillectomy pain control. METHODS: 18 children aged 5 to 15 years undergoing adenotonsillectomy between June 2005 and October 2006 were randomized to receive either local application of therapeutic laser immediately after surgery and 24 hours postoperatively (n=9) or routine analgesic drug therapy, if necessary. Pain was assessed by visual analog scale scores, need for analgesics, and acceptance of diet during the postoperative period. RESULTS: Patients undergoing laser applications had lower median pain scores and required less analgesic medication postoperatively than the control group. Acceptance of diet was similar in both groups. CONCLUSIONS: Preliminary results showed that low-level laser therapy is effective in the reduction of post-tonsillectomy pain, minimizing the need of analgesic medication in children and adolescents.
- ItemAcesso aberto (Open Access)Eficiência do laser diodo 980 nm em comparação à da glicose a 75% na oclusão de veias da orelha de coelhos(Sociedade Brasileira de Angiologia e de Cirurgia Vascular (SBACV), 2011-06-01) Lima, Paulo Roberto da Silva [UNIFESP]; Araújo, Marcelo; Pitta, Guilherme Benjamin Brandão; Oliveira, Andressa Feitosa Bezerra de; Pereira, Guilherme Costa Guedes; Baptista-Silva, José Carlos Costa [UNIFESP]; Universidade Estadual de Santa Cruz; Universidade Estadual de Ciências da Saúde de Alagoas; Universidade Federal da Paraíba; Universidade Federal de São Paulo (UNIFESP)BACKGROUND: The laser is a new treatment to varicose veins and there is several myths and doubts in relation to its efficacy; then, there is the need to compare it with the most commonly sclerosing solution (hypertonic glucose) used in our specialty. OBJECTIVE: To compare the efficiency of the diode laser 980nm to the glucose 75% in the occlusion of veins from the ear of rabbits. METHODS: Aleatory trial in laboratory animals during 21 days. The sample consisted of ears from male adult rabbits. Group L (laser): 15 ears treated with laser; group G (glucose 75%): 15 ears treated with glucose 75%. Primary variables: sclerotic and/or occluded veins. Complementary variables: volume of the managed substance, complications and weight of rabbit. The sample size was estimated in 30 ears. The statistical analysis was carried out by Fisher''s exact test associated to the Relative Risk (RR), calculating the confidence interval of 95% for the mentioned variables. RESULTS: The incidence of sclerosis or venous occlusion in group G was 53% (8/15; 95%CI: 27-79) and in group L was 20% (3/15; 95% CI: 4-49). Two-tailed p was 0.1281, RR using the approximation of Katz was 2.66; 95%CI: 0.87-8.15. CONCLUSION: The efficiency of the diode laser 980 nm in comparison to glucose 75% in occlusion of veins in this experimental model was equivalent.
- ItemSomente MetadadadosLaser de diodo 975 (nm) no tratamento fototermico da flacidez cervicofacial(Universidade Federal de São Paulo (UNIFESP), 2016-10-31) Wolfenson, Moises [UNIFESP]; Ferreira, Lydia Masako Ferreira [UNIFESP]; Universidade Federal de São Paulo (UNIFESP)Introduction:.New devices have been developed to repair deformities in cervicofacial region by means of photothermal effect of laser radiation. Objective: To evaluate the fototermólise laser therapy 975 ? (nm) on sagging skin on the face and neck. Methods: This is a prospective interventional only center study. Forty two postmenopausal women were included, submitted to photo-thermal diode laser therapy to correct sagging on cervical-facial region. The laser fluency was 3 kj/100 cm² in skin used as security parameter to calculate the ideal cumulative energy for the regions treated. Direct antropometry was performed as: four cervico-facial lines were measured before, immediately after and after three months, with a caliper. The measurements were compared through Wilcoxon test. Fifteen patients underwent biopsies by needling of regions with sagging, before and 90 days after the laser. These tissue was subjected to morphometry and compared by Wilcoxon test. Results: A significant retraction of the skin was observed in all patients three months after the procedure, with reduction of length of four cervical-facial lines (p<0.001). The results of the morphometries indicated quantitative increase of collagens I and III in the treated regions (p<0.001). Conclusion: The use of a laser diode ?975 resulted in reduction of sagging skin.
- ItemAcesso aberto (Open Access)Laser therapy in the treatment of dentine hypersensitivity(Fundação Odontológica de Ribeirão Preto, 2004-01-01) Ladalardo, Thereza Christinna Cellos Gonçalves Pinheiro [UNIFESP]; Pinheiro, Antonio; Campos, Roberto Augusto de Carvalho [UNIFESP]; Brugnera Júnior, Aldo; Zanin, Fátima; Mangabeira-Albernaz, Pedro Luiz [UNIFESP]; Weckx, Luc Louis Maurice [UNIFESP]; Universidade Federal de São Paulo (UNIFESP); Federal University of Bahia School of Dentistry Laser Center; Camilo Castelo Branco University Laser CenterCervical dentine hypersensitivity is the most frequent complaint among reported odontalgias. Thus, this study evaluated the effectiveness of two types of lasers (660 nm wavelength red, and 830 nm wavelength infrared) as dentine desensitizers, as well as both the immediate and late therapeutic effects in individuals 25 to 45 years of age. A total of 40 teeth with cervical exposure were treated in 4 sessions. They were divided into 2 groups according to treatment. A 660 nm wavelength red diode laser and an 830 nm wavelength infrared diode laser were used. Dentine sensitivity to cold nociceptive stimulus was evaluated by means of a pain numeric scale from zero to 10 before each treatment session, at 15 and 30 min after irradiation, and in a follow-up period of 15, 30 and 60 days after the end of treatment. Significant levels of dentinal desensitization were only found in patients ranging in age from 25 to 35 years. The 660 nm red diode laser was more effective than the 830 nm infrared laser and a higher level of desensitization was observed at the 15 and 30 minute post-irradiation examinations. The immediate and late therapeutic effects of the 660 nm red diode laser were more evident in 25-35-year-old patients compared with those of the 830 nm infrared diode laser, in terms of the different age groups.
- ItemAcesso aberto (Open Access)Therapeutic Assessment of Vulvar Squamous Intraepithelial Lesions with CO2 Laser Vaporization in Immunosuppressed Patients(Federacao Brasileira Soc Ginecologia & Obstetricia-Febrasgo, 2018) Lascasas Ribalta, Julisa Chamorro [UNIFESP]; Mateussi, Mariana Vendramin [UNIFESP]; de Gois Speck, Neila Maria [UNIFESP]Objective A vulvar squamous intraepithelial lesion is deemed to be a preceding lesion to vulvar cancer, especially in women aged under 40 years, holders of an acquired or idiopathic immunosuppression. Several treatments have been used to treat these lesions. One of the aesthetically acceptable therapeutic methods is the CO2 laser vaporization. Methods In a transversal study, 46 records of immunosuppressed women bearing a vulvar low grade and/or high grade squamous intraepithelial lesion were selected out of the retrospective analysis, computing age, date of record, date of vulvar lesion treatment with CO2 laser, the time elapsed between the first and the last visit (in months), the number of visits, the presence or absence of condylomatous lesions in other female lower genital tract sites and whether or not recurrences and persistence of intraepithelial lesions have been noticed during the follow-up. Results Patients bearing vulvar high-grade squamous intraepithelial lesion and immunosuppressed (serumpositive for human immunodeficiency virus [HIV] or with solid organs transplantation) have shown a higher level of persistence of lesions and a higher chance of having other areas of the female lower genital tract involved. Conclusion While the CO2 laser vaporization is the most conservative method for the treatment of vulvar high-grade intraepithelial lesions, it is far from being the ideal method, due to the intrinsic infection features considered. The possibility of persistence, recurrences and spontaneous limited regression indicates that a closer surveillance in the long-term treated cases should be considered, in special for immunosuppressed patients.