Effect of bladder volume on measured intravesical pressure: a prospective cohort study

Table 1 Mean intra-bladder pressure, expressed in mmHg at different bladder instillation volumes, per individual patient obtained during bladder filling

Patient	Bladder Instillation Volume
	0 ml	25 ml	50 ml	75 ml	100 ml	125 ml	150 ml	175 ml	200 ml	225 ml	250 ml	275 ml	300 ml
1	7	7.5	8.5	8.8	9.8	10	11	11.5	12	13	13.5	14	15.5
2	7	7.5	8	9	9	9.5	10	10.5	11	11.5	12.5	13	14
3	6	9.3	13	14.7	16	19.3	22.3	25.3	28.3	32.3	37.3	42	48
4	0.5	1.5	2.5	4.5	4.5	6	8.5	12	13.5	15	17	22	27
5	4	4	5.3	5.7	6	7.7	9.7	9.7	10	11	11.7	12.7	13.7
6	0	0.5	1.5	2.5	3	3.5	4	5	6	7	7	9	11
7	12.7	13.3	13.7	14	14.7	15.3	16.3	17	17.7	18.7	19.7	21	23.3
8	6	6	7	7	8	8	8.5	9.5	10	11	12	14	15
9	6	6.5	7.5	7.5	8.5	9.5	11.5	13	15	18	21.5	25	29.5
10	12	12	13	13	13.5	15	17.5	20.5	23.5	27	31	35	39.5
11	4	6	6.7	7	8	8.7	10.3	11	12.3	13.7	15.7	17.3	21.3
12	8.5	8.5	9.5	9.5	10	10.5	11.5	12	13	13.5	15	16.5	18.5
13	6.5	7.5	8	9	10	11	12	13	15.5	17.5	20.5	23	26.5
Mean	6.2	6.9	8	8.6	9.3	10.3	11.8	13.1	14.4	16.1	18	20.3	23.3
Median	6	7.5	8	8.8	9	9.5	11	12	13	13.7	15.7	17.3	21.3

ISSN: 1364-8535