Abstract
Nerve conduction block by high-frequency stimulus has been used as a method to modulate the contractile force of skeletal muscles. This paper describes the effect of block stimulus on the modulation of urethral closure pressure in dogs. Tetanic stimulus was applied through a pair of electrodes wrapped about the bilateral pudendal nerves and high-frequency stimulus was superimposed through another pair of electrodes wrapped about 1 cm distalward along the nerves. Urethral closure pressure was measured through a transurethral UPP catheter. High-frequency stimulus over 300 Hz reduced elevated urethral closure pressure, which was induced by tetanic stimulus, up to 30-45%.
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