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Master's Dissertation
DOI
https://doi.org/10.11606/D.82.2017.tde-17102017-105953
Document
Author
Full name
Valdeci Carlos Dionisio
Institute/School/College
Knowledge Area
Date of Defense
Published
Ribeirão Preto, 1998
Supervisor
Committee
Volpon, José Batista (President)
Carvalho Filho, Guaracy
Mazzer, Nilton
Title in Portuguese
O efeito do ultra-som terapêutico na vascularização pós lesão muscular experimental em coelhos
Keywords in Portuguese
Angiogênese
Lesão experimental
Músculo esquelético
Ultra-som
Abstract in Portuguese
Este estudo analisou o efeito do ultra-som terapêutico na vascularização pós lesão muscular experimental em coelhos. Foram utilizados 10 coelhos da raça Nova Zelândia, com peso médio de 2,5 kg. Os animais foram submetidos à lesão por esmagamento do músculo reto femoral em ambas as coxas e, após 24 horas um dos lados foi tratado com ultra-som terapêutico e o outro serviu como controle. A freqüência utilizada foi de 1 MHz e intensidade de 0,5 W/cm2 por 5 minutos, durante 10 dias consecutivos. Após 48 horas do término do período de tratamento, os animais foram sacrificados. Foi feita a lavagem do sistema vascular com solução fisiológica, e depois, feita a injeção de uma solução de sulfato de bário e tinta da China. Os músculos foram ressecados do fêmur e submetidos ao processo de diafanização de acordo com a técnica de Spalteholz. Depois que as peças ficaram transparentes, foram examinadas por microscópio cirúrgico. Os resultados não mostraram diferenças no padrão da vascularização (artérias e arteríolas) entre os lados tratados e não tratados, sugerindo que o ultra-som terapêutico não provocou mudanças no padrão vascular após aplicação precoce em lesão muscular.
Title in English
The effect therapeutic ultrasound in vasculature of experimental muscular lesions in rabbits
Keywords in English
not available
Abstract in English
The effects of therapeutic pulsed ultrasound was investigated on experimental muscular lesions of rabbits. Ten white New Zealand rabbits weighing 2,5 kg were operated on and a crush injury of the rectus femoris of both hind limbs was performed. Twenty-four hours later therapeutic ultrasound was applied on one side and the other side was kept as a control. The following parameters were used: frequency 1 MHz, intensity 0,5 W/cm2, treatment time 5 minutes and a whole of 10 sessions were completed. Two days after completion of the treatment the animals were killed and the arterial system of the hind limbs was injected with a mixture of barium sulphate and Indian ink. The quadriceps was harvested and processed according the Spalteholz technique. The vasculature of the specimens, specially in the local of the injury was studied. The results showed no difference in the vascular pattern between the treated and untreated sides.
 
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Publishing Date
2017-10-17
 
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