Abstract
Aims. To test the significance between a validated index of detrusor contractility, vCE, the Watts Factor, Bladder Outlet Obstruction Index (BOOI), and the Detrusor Contractility Parameter, t20-80; and to test whether t20-80 depends on outflow tract resistance.
Methods. Thirty-seven pressure-flow traces from 20 male and 17 female patients were analysed and forms of the Watts Factor, t20-80 and BOOI were compared with vCE.
Results. The Detrusor Contractility Parameter, t20-80, is significantly associated with vCE for both women and men without a high degree of bladder outlet obstruction. The Watts Factor only had a significant association with vCE at the point of maximum flow in women.
Conclusions. The detrusor contractility parameter, DCP (t20-80), can be measured easily from the pressure flow curves of a urodynamic test. The Watts Factor at maximum urine flow, WFQmax, can be readily calculated, but is only applicable to women. In both women and men without a high degree of bladder outlet obstruction, DCP is better associated with true detrusor contractility than any Watts Factor analysis.
Methods. Thirty-seven pressure-flow traces from 20 male and 17 female patients were analysed and forms of the Watts Factor, t20-80 and BOOI were compared with vCE.
Results. The Detrusor Contractility Parameter, t20-80, is significantly associated with vCE for both women and men without a high degree of bladder outlet obstruction. The Watts Factor only had a significant association with vCE at the point of maximum flow in women.
Conclusions. The detrusor contractility parameter, DCP (t20-80), can be measured easily from the pressure flow curves of a urodynamic test. The Watts Factor at maximum urine flow, WFQmax, can be readily calculated, but is only applicable to women. In both women and men without a high degree of bladder outlet obstruction, DCP is better associated with true detrusor contractility than any Watts Factor analysis.
| Original language | English |
|---|---|
| Pages (from-to) | 2745-2752 |
| Number of pages | 8 |
| Journal | Neurourology and Urodynamics |
| Volume | 37 |
| Issue number | 8 |
| Early online date | 4 Jul 2018 |
| DOIs | |
| Publication status | Published - Nov 2018 |
Research Groups and Themes
- Centre for Surgical Research
Keywords
- bladder outlet obstruction
- contractility
- Wmax