Short- and long-term reproducibility of cystometry.

We investigated 8 male patients, age 28-51 years, mean 35, with symptoms of bladder neck dysfunction by means of repeated water-cystometry. We made four cystometries with different patient positions and filling rates followed by a further two cystometries after an interval of 8 days. We found no difference in bladder volumes at first sensation and maximal capacity between the different investigations, irrespective of patient position and filling rate. It was concluded that data obtained by water cystometry may be regarded as absolute.