Effect of Radiofrequency Lesioning on Peripheral Nerve Conductivity in Relation to Distance between Lesioning Electrode and Target Tissue in Rats
Journal of the Korean Academy of Rehabilitation Medicine
; : 449-453, 2004.
Artigo
em Coreano
| WPRIM (Pacífico Ocidental)
| ID: wpr-722987
Biblioteca responsável:
WPRO
ABSTRACT
OBJECTIVE:
To investigate neurophysiologic changes of peripheral nerves, which were injured by radiofrequency thermocoagulation and evaluate an effective distance between the lesioning electrode and target nerve tissue.METHOD:
Thirty Sprague-Dawley rats were used and divided into three groups by the distance between the lesioning electrode and the sciatic nerve 2 mm, 4 mm, 6 mm for each group (10 rats for each group). Radiofrequency lesioning was performed with 1.5 Volt, 1 MHz-frequency and 1 ms duration current for 90 sec. On the first and the fifth day after radiofrequency lesioning, latencies and amplitudes of compound muscle action potential were compared with the baseline values.RESULTS:
No statistically significant latency change was observed on the first and the fifth day after lesioning. The amplitude was significantly reduced in group I and II on the first and the fifth day after lesioning, in contrast that, there was no significant change in the group III.CONCLUSION:
There was significant decrement in the amplitude after effective radiofrequency lesioning to the sciatic nerve with the distance of 4 mm or less. However, changes of the latencies was not significant. It was suggested that effective distance between raidiofrequency lesioning electrode and target peripheral nerve was 4 mm or less.
Texto completo:
Disponível
Base de dados:
WPRIM (Pacífico Ocidental)
Assunto principal:
Nervos Periféricos
/
Nervo Isquiático
/
Potenciais de Ação
/
Ratos Sprague-Dawley
/
Eletrocoagulação
/
Eletrodos
/
Tecido Nervoso
Limite:
Animais
Idioma:
Coreano
Revista:
Journal of the Korean Academy of Rehabilitation Medicine
Ano de publicação:
2004
Tipo de documento:
Artigo