Evaluation of the Larval Therapy in the Healing Process of Infected Wounds with Pseudomonas Aeruginosa in Rabbits

Introduction. During the last two decades the larval therapy has reemerged as a safe and reliable alternative for the healing of cutaneous ulcers that do not respond to the conventional treatments. Objective. To evaluate the use of the larvae of Lucilia sericata as a treatment for infected wounds with Pseudomonas aeruginosa in an animal model. Materials and methods. Twelve rabbits were randomly distributed in 3 groups: the first group was treated with larval therapy; the second was treated with antibiotics therapy and to the third no treatment was applied, therefore was established as a control group. To each animal a wound was artificially induced, and then a suspension of P. aeruginosa was inoculated into the lesion. Finally, every rabbit was evaluated until the infection development was recognized and treatment was set up for the first two groups according with the protocols mentioned above. Macroscopic evaluation of the wounds was based on the presence of edema, exudates, bad odor, inflammation around the wound and the presence of granulation tissue. The healing process was evaluated by monitoring histological changes in the dermal tissue. Results. Differences in the time required for wound healing were observed between the first group treated with larval therapy (10 days) and the second group treated with conventional antibiotics therapy (20 days). Conclusion. The L. sericata larva is and efficient tool as a therapy for infected wounds with P. aeruginosa.

Biocirugía: utilización de larvas de insectos necrófagos en la curación de heridas. La terapia larval

La terapia larval es una técnica que permite aplicarlas larvas de algunas especies de dípteros sobre heridas crónicas o sobre focos de infección localizados, con la finalidad de restaurar el tejido afectado. La velocidad y la eficacia del tratamiento, sumadas a la casi nula pérdida de tejido sano durante el proceso de reparación tisular, han hecho de la terapia larval o biocirugía una alternativa viable para la curación de heridas asociadas con entidades como pie diabético, úlceras venosas, úlceras crónicas de la piel y quemaduras, así como de ciertos tipos de tumores benignos, abscesos y osteomielitis. Aunque la medicina moderna ha sido, en muchos casos, reticente a la aplicación de terapias de esta índole, eventos como la resistencia a los antibióticos y las alteraciones en el proceso de cicatrización en las heridas crónicas han permitido modificar la posición inicial de muchos médicos al respecto.

A motivação empreendedora e a satisfação com o desempenho organizacional em empresas de pequeno e médio porte de Blumenau: uma análise da indústria local

The current study arose from previous studies made by McClelland (1972), Namam; Slevin (1993), Kuratko; Hornsby; Naffziger (1997), Hoeltgebaum; Kato (2002); Hoeltgebaum;Debastini (2003), Hoeltgebaum; Santos; Loesch (2003) and Hoeltgebaum; Santos (2003). Its objective is to understand the reasons that that lead an entrepreneur to open his ownbusiness, his degree of satisfaction and to perceive if there is a relation between entrepreneurial motivation and the performance of companies. In order to concretize the objective, a descriptive qualitative/quantitative research was realized, amounting to 88 questions of a closed type, statistically ordered. Data collection was achieved by means of a questionnaire divided into 4 parts. Once responses to the questionnaires were obtained, analysis was performed on them, using LHSTAT software. Among the principal results, it was evident in the analysis of the questionnaires that there were a variety of motivations for opening a new business present among the interviewed, with a small, distinct difference in the frequency of the responses. When the satisfaction of the respondents regarding the performance of the company was analyzed, it was perceived that the greatest satisfaction derived from gross and net profit margin and return on investment. Several interdependencies between motivation and satisfactionand performance were evident in the research, with three in particular being the strongest. It was decided to include a category regarding behavioral characteristics of entrepreneurs tothe objectives of the project in which, according to the interviewees, these have a strong entrepreneurial profile; results showed that all the characteristics are well developed. It wasconcluded that the intrinsic motivations are more evident in the entrepreneurs interviewed and that the greatest satisfaction among them lies in the area of gross and net profit margin andin return over investment. It was perceived that there are clear relationships between the motivation of entrepreneurs and satisfaction with the performance of companies.