ISSN:
1433-3023
Keywords:
Catheter obstructive effect
;
Urodynamic parameters
;
Uroflowmetry
Source:
Springer Online Journal Archives 1860-2000
Topics:
Medicine
Notes:
Abstract In order to evaluate the obstructive effects of microtip transducer catheters on flowmetry parameters, 156 patients had a spontaneous uroflowmetry (SU) followed by an instrumented uroflowmetry (IU), with intravesical pressure recording for comparison of maximum flow rate (Qmax), corrected maximum flow rate for volume voided (Qmax.corr.), time to maximum flow rate (TQmax), and flow curve patterns. With SU and IU, Qmax values were 26±11 ml/s compared with 21±11 ml/s (P〈0.001), Qmax.corr. as 29±10 m/s compared with 21±11 ml/s (P〈0.0001) and TQmax values were 11±9 s compared with 30±52 s (P〈0.0001). Vesical opening pressure (VOP) was higher in patients with a low TQmax (〈 15 s) (23 cmH2O±20) than with a higher TQmax (17 cmH2O±16) (P〈0.04). Curve patterns with both methods show good correlations in 71% of patients, no correlations in 14% and doubtful correlations in 15%. The occlusive effect of the catheter during micturition induces a decrease in Qmax and Qmax.corr. and an increase in TQmax values, due to a lowered VOP in many patients, but little difference in curve pattern interpretation.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00372736
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