Several studies demonstrate the benefits of low-power light therapy on wound
healing. However, the use of LED as a therapeutic resource remains
controversial. There are questions regarding the equality or not of biological
effects promoted by LED and LASER. One objective of this review was to determine
the biological effects that support the use of LED on wound healing. Another
objective was to identify LED´s parameters for the treatment of wounds. The
biological effects and parameters of LED will be compared to those of LASER.
Literature was obtained from online databases such as Medline, PubMed, Science
Direct and Scielo. The search was restricted to studies published in English and
Portuguese from 1992 to 2012. Sixty-eight studies in vitro and in animals were
analyzed. LED and LASER promote similar biological effects, such as decrease of
inflammatory cells, increased fibroblast proliferation, stimulation of
angiogenesis, granulation tissue formation and increased synthesis of collagen.
The irradiation parameters are also similar between LED and LASER. The
biological effects are dependent on irradiation parameters, mainly wavelength
and dose. This review elucidates the importance of defining parameters for the
use of light devices.
Introdução: A tendinite calcária do ombro é uma calcificação caracterizada pela deposição de sais de cálcio nos tendões do manguito rotador, provocando dor no ombro e perda de amplitude de movimento (ADM). O ultrassom é sugerido como alternativa promissora para facilitar a reabsorção dos depósitos de cálcio. Os mecanismos que fundamentam esse efeito são, entretanto, ainda controversos na literatura, e a utilização clínica do ultrassom na tendinite calcária tem sido baseada mais em evidências empíricas do que científicas. Objetivos: Realizar uma revisão bibliográfica sobre os efeitos biológicos e terapêuticos do ultrassom, a fim de identificar o real papel desse recurso no tratamento da tendinite calcária do ombro. Materiais e métodos: Para sua elaboração, foi feita uma busca bibliográfica em bases de dados eletrônicas e uma pesquisa manual. Resultados: Dentre os estudos selecionados, dois demonstraram redução da dor e do tamanho da calcificação e dois não apresentaram resultados positivos. Discussão: Os benefícios promovidos pelo ultrassom são dependentes dos parâmetros utilizados. Variáveis como o tamanho da área a ser tratada, diferenças teciduais, duração da aplicação e o objetivo da conduta terapêutica também devem ser considerados. Conclusão: Com base nesta revisão, pode-se afirmar que o ultrassom terapêutico é um recurso efetivo no tratamento da tendinite calcária do ombro.
Objective: to evaluate the use of realistic simulation as a strategy to promote teaching about pressure injuries. Method: This is a quasi-experimental study. A modified and translated version of the Pieper Pressure Ulcer knowledge test was applied. Kappa statistical analysis was used to assess the professionals’ knowledge in the realistic simulation using the SPSS software. A p-value <0.05 was considered significant. Results: Seventy-seven nursing professionals participated in the realistic simulation, the majority (72.7%) being nursing technicians. Regarding the knowledge of primary and secondary coverage techniques, the Kappa index went from 0.56 (p=0.002) in the pre-test to 0.87 (p=0.001) in the post-test. As for the sterile dressing technique, there was a variation from 0.55 (p=0.002) in the pre-test to 0.91 (p=0.001) in the post-test. Regarding the cleaning of pressure injuries, there was a variation from 0.81 (CI: 0.62-0.84) in the pre-test to 0.91 (0.85-0.97) in the post-test. The knowledge about the use of a sterile spatula to distribute the dressing in the wound increased from an agreement index from regular to good. Conclusion: The introduction of the realistic simulation in the clinical practice has created quality assessment indicators for the prevention and treatment of pressure injuries.
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