Table 3.
Comparison of the median maximum flow rate (Q max), maximum detrusor pressure (P detmax), maximum detrusor pressure during maximum flow rate (P detQmax), residual volume and flow time as obtained by pressure flow studies before and after surgery
| Before surgery, n = 17 | After surgery, N = 16a | P b | |
|---|---|---|---|
| Voided volume (in mL) | 364.0 (3.0–712.0) | 338.0 (7.0–588.0) | 0.38 |
| Q max (in mL/s) | 20.0 (5.0–55.0) | 17.0 (0.0–73.0) | 0.36 |
| P detQmax (in cm H2O) | 22.0 (0.0–73.0) | 26.0 (0.0–69.0) | 0.80 |
| P detmax (in cm H2O) | 44.0 (13.0–102.0) | 37.5 (17.0–96.0) | 0.53 |
| Residual volume (in mL) | 10.0 (0.0–707.0) | 66.0 (0.0–487.0) | 0.78 |
| Flow time (in s) | 49.5 (28.0–222.0) | 58.0 (9.0–255.0) | 0.65 |
Values are median (range)
aOne patient was unable to void during pressure flow studies after surgery
bAs calculated using Wilcoxon signed-ranks test