Paired extraluminal strain gauge force transducers for measuring urethral movements.

Tsuchida, Seigi; Nishizawa, Osamu; Koinuma, Nobuo; Harada, Tadashi; Moriya, Itaru; Satoh, Sadamoto; Ebina, Kenichi; Noto, Hiromitsu

doi:10.1620/tjem.141.117

Cited by 3 publications

(4 citation statements)

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“…At present two methods of urethral motility mea surement have been reported. One method using force displacement transducers was reported by Abdel-Rahman et al [6] and llassouna et al [7], We devised another method and the details were presented in a previous report [9], Paired strain gauge force transducers were implanted in the urethra to measure separately and simultaneously both longitudinal and transverse movements. This gauge is sensitive to changes as small as 0.01 mm.…”

Section: Discussionmentioning

confidence: 99%

“…To inhibit nerve reflex, the pelvic nerves were cut bilaterally proximal to the pelvic plexus, and the hypogastric nerves were cut bilaterally distal to the lower mesenteric ganglion. The paired cxtraluminal strain gauge force transducers [9] were implanted at the urethra to measure both longitudinal and transverse urethral movements. The intraluminal pressure at the same site was monitored with a 4-French microtip catheter.…”

Section: Methodsmentioning

confidence: 99%

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Effects of Autonomic Agonists on in vivo Female Canine Urethral Motility

Nishizawa¹,

Moriya²,

Satoh³

et al. 1985

Urol Int

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The response of the urethra to intra-arterially administered autonomic agonists was studied in vivo by measuring the motility and pressure changes in female dogs. Phenylephrine produced shortening along the transverse axis with an increase in urethral pressure in a dose-dependent manner. Isoproterenol produced lengthening along the transverse axis with a decrease in urethral pressure. Both acetylcholine and dimethylphenylpiperazinium did not produce consistent patterns in urethral response. It seems that adrenergic drugs act predominantly on the circular muscle layer and cholinergic drugs act equally on both the circular and longitudinal muscle layers.

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Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Effects of Autonomic Agonists on in vivo Female Canine Urethral Motility

Nishizawa¹,

Moriya²,

Satoh³

et al. 1985

Urol Int

Self Cite

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show abstract

“…The paired extraluminal strain gauge force transducers [5] were implanted at the urethra to measure both longitudinal and transverse urethral movements. Changes of the strain gauge were expressed by indicating elongation as plus, shortening as minus, and by showing recorded elongation as an upward deflection with shortening as a downward deflection.…”

Section: Methodsmentioning

confidence: 99%

Effects of the Autonomic Antagonists on Canine Urethral Reponses to Autonomic Nerve Stimulation

Nishizawa¹,

Moriya²,

Fukuda³

et al. 1985

Urol Int

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The effects of the autonomic antagonists on urethral activity was studied in female dogs. Urethral responses produced by autonomic nerve stimulation were measured with pressure and motility changes in control conditions and after administration of autonomic antagonists. Phentolamine and guanethidine reduced both hypogastric and pelvic nerve mediated responses. It seems that urethral smooth muscle function is greatly influenced by adrenergic drugs.

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“…1 shows the experimental setup. The paired extraluminal strain gauge force transducers for measuring urethral movements (Tsuchida et al 1983) were implanted in the proximal urethra. The intraluminal pressure at the same site was monitored with a 4 Fr.…”

mentioning

confidence: 99%