Efeito da estimulação elétrica transcutânea em alta freqüência no músculo tríceps sural após esmagamento do nervo ciático em ratos Wistar
DOI:
https://doi.org/10.33233/fb.v9i1.1601Abstract
O objetivo deste estudo foi avaliar o efeito da estimulação elétrica transcutânea de alta freqüência nas alterações morfológicas do músculo tríceps sural depois da lesão nervosa periférica do nervo ciáticoem ratos. Quarentaratos foram divididos em 4 grupos: controle negativo (sem lesão), controle positivo (com lesão), lesados e tratados com 4 mA e lesados e tratados com 6 mA. Entre o grupo controle positivo (5,7 ± 2,4) e controle negativo (36,3 ± 6,15) observamos uma diminuição significativa na densidade relativa de tecido muscular e conjuntivo, demonstrando a efetividade do modelo experimental. Entre os grupos tratados não houve diferença estatística, entretanto, ocorreu um aumento significativo na densidade relativa entre os grupos tratados com 4 mA (16,35 ± 0,46) e 6 mA (14,4 ± 2,63) em relação ao grupo controle positivo (5,7 ± 2,4), indicando a diminuição da proliferação de tecido conjuntivo nas amostras analisadas. Nossos resultados indicam que a estimulação elétrica transcutânea de alta freqüência, dentro desses parâmetros, foi efetiva na diminuição da proliferação de tecido conjuntivo no grupo muscular tríceps sural de ratos após lesão nervosa periférica por esmagamento do nervo ciático.Palavras-chave: nervo ciático, estimulação elétrica transcutânea, tecido conjuntivo, ratos wistar.
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