Jens Christian Djurhuus

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The diurnal variation of plasma vasopressin (AVP), urinary excretion rate, urinary osmolality, and serum osmolality was studied twice in 15 patients with enuresis and in 11 age, weight, and sex matched nonenuretic normal subjects. A diurnal rhythm of AVP with constant levels during the day (8 AM-10 PM) and a highly significant increase during the night (10(More)
PURPOSE We investigated the circadian variation in urine output, plasma angiotensin II, aldosterone, atrial natriuretic peptide, arginine vasopressin and blood pressure. MATERIALS AND METHODS We studied 17 elderly men with nocturia and lower urinary tract symptoms, and 10 age matched controls without nocturia. RESULTS Of the 17 patients studied 11 had a(More)
PURPOSE We evaluated the intra-individual variability and reproducibility of nighttime urine production on wet nights and functional bladder capacity estimated by long-term home recordings of monosymptomatic nocturnal enuresis. In particular, the intention was to evaluate the validity of 1 versus 2 weeks of recording when estimating urine volume on wet(More)
Twenty-five patients with pain in the knee or hip were examined by means of bilateral intraosseous phlebography, intraosseous pressure measurements and 99mTechnetium polyphosphate scintigraphy. All patients with typical rest pain--either due to osteoarthritis or to the intraosseous engorgement-pain syndrome--showed venous stasis and increased pressure in(More)
AIMS To investigate the feasibility of conditional short duration electrical stimulation of the penile/clitoral nerve as treatment for detrusor hyperreflexia, the present study was initiated. METHODS Ten patients with spinal cord injury, 4 women and 6 men, with lesions at different levels above the sacral micturition center had a standard cystometry(More)
The effect of acute unilateral complete ureteral obstruction (UUO) on renal hemodynamics has been examined in a pig model. Pigs were operated on under general anesthesia, electromagnetic flow probes were inserted around renal arteries, and catheters were implanted in renal veins and aorta for blood sampling. The influence of 15 h of obstruction on the(More)
The transition from day to night is associated with a pronounced decline in diuresis with reductions in the amount of excreted water, electrolytes, and other end products of our metabolism. Failure to do so leads to a large urine output at night, a condition known as nocturnal polyuria, encountered in a large proportion of children with nocturnal enuresis.(More)
The diurnal antidiuretic hormone levels were studied in eleven enuretics and related to urine production and functional bladder capacity. A fluid deprivation test monitoring antidiuretic hormone levels was undertaken in four patients. The study suggests that the normal increase in nighttime antidiuretic hormone levels is absent in enuretics, who show a(More)