Bladder function in healthy volunteers: ambulatory monitoring and conventional urodynamic studies.

OBJECTIVE

To obtain data on conventional artificial filling cystometry and ambulatory monitoring in healthy asymptomatic control populations.

SUBJECTS AND METHODS

Seventeen healthy volunteers were assessed by means of artificial filling cystometry (CMG), filling at rates of 50 ml/min (CMG 50) and 100 ml/min (CMG 100), and ambulatory monitoring (AM).

RESULTS

Significant differences were found between AM and CMG with respect to: the pressure rise on filling (P < 0.02), voided volumes (P < 0.01) and maximum detrusor pressure on micturition (P < 0.01). Detrusor instability was found in 38% of volunteers on AM, in 17% on CMG 50, but in none on CMG 100.

CONCLUSION

A range of baseline urodynamic values has been established which could provide the basis for future studies of ambulatory monitoring.