Aims of Study In the investigation of lower urinary tract symptoms many cases can be reliably assessed from a good history and a simple measurement of maximum flow rate (Q-max) alone. To obtain a reliable flow rate patients must void a reasonable volume, as flow is dependent on voided volume [1]. Clinical trials have demonstrated that the reliability of Qmax can be improved by bladder instillat...

For the needs of bladder urinary volume noninvasive monitoring in clinical, we present a noninvasive bladder urinary volume monitoring system based on bio-impedance. The system uses a four-electrode structure, which is composed of a pair of excitation electrodes and a pair of measurement electrodes. The Direct Digital Frequency Synthesis (DDS) is applied to generate a 50 kHz sine current excita...

The effects of dopamine receptor agonists on urinary bladder function were evaluated in normal and 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-lesioned parkinsonian cynomolgus monkeys to investigate the therapeutic efficacy in the treatment of urinary symptoms in Parkinson's disease. Under ketamine anesthesia, cystometrograms exhibited significant reduction in the volume threshold for t...

BACKGROUND To evaluate the effects of combined bladder neck preservation and posterior reconstruction techniques on early and long term urinary continence in patients treated by robotic assisted radical prostatectomy (RARP). METHODS Two-hundred ninety-two patients who previously underwent radical prostatectomy were retrospectively selected for a case-control study, excluding those with anasto...

Somatostatin has profound effects on both splanchnic and portal vascular beds. The effects of intravenous somatostatin (100 micrograms/h) on urinary volume, effective renal plasma flow, and glomerular filtration rate were compared with the effects of a control infusion of physiological saline in six normal subjects. Renal plasma flow and glomerular filtration rate were measured by primed consta...

PURPOSE We report on our experience with the Memotherm stent implanted in high-risk patients who had an indwelling catheter. PATIENTS AND METHODS Seventeen patients (mean age 80.6 years, range 55 to 93) who had an indwelling catheter were treated by placement of the Memotherm stent. The mean duration time of indwelling catheter were 12.7 months (range 1 to 60). The methods of implantation was...

Recent data suggest possible net transport of urinary constituents across mammalian urinary tract epithelia (urothelia). To evaluate the effect of animal hydration status on such transport, we instilled urine collected during 2-day water deprivation, water loading, or ad libitum water intake into isolated in situ bladder(s) of groups of rats undergoing one of the same three hydration states. Af...

1. The urinary F1 activation peptide of prothrombin is the predominant protein incorporated into calcium oxalate crystals precipitated from human urine. The aim of this study was to examine the effect of pure urinary prothrombin F1 on calcium oxalate crystallization in human urine. 2. Urinary prothrombin F1 was purified from demineralized calcium oxalate crystals precipitated from human urine, ...

Ab btract. To study the relationship between vasopressin and the renal kallikrein-kinin system we measured the rate of excretion of kinins into the urine of anesthetized rats during conditions of increased and decreased vasopressin level. The excretion of immunoreactive kinins in Brattleboro rats with hereditary diabetes insipidus (DI) (24±3 pg min-' kg-') was lower than in the control Long Eva...