Abstract
Objective: To compare a new index of voiding dysfunction (D) based purely on free uroflow vs. Abrams-Griffiths (A-G) number obtained from intubated flow, for classification of bladder outlet obstruction in men. Patients and Methods: Urodynamic tracings of 60 non-neurological patients (30 before transurethral resection of the prostate and of 30 men suspected of benign prostatic hyperplasia included in a medical therapy trial) were retrospectively analyzed. The Valentini-Besson-Nelson model was used to evaluate the value of the D index. A-G was obtained from intubated flows. Obstruction was defined as D > 32.5 cm H2O (translation of A-G criterion). Results: D showed 82.05% sensitivity with 66.66% specificity; the positive predictive value was 82.05% and the negative predictive value 66.66% for the whole population, 83.3 vs. 80.9% sensitivity with 58.3 vs. 77.7% specificity for pre-transurethral resection of the prostate vs. medical therapy group. Conclusion: D index which can be obtained from a free uroflow appears as a valuable alternative to invasive urodynamic investigations when the diagnosis of bladder outlet obstruction needs to be more solidly established before a treatment decision or in men suspected of benign prostatic hyperplasia who elect for watchful waiting.
Original language | English (US) |
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Pages (from-to) | 124-128 |
Number of pages | 5 |
Journal | Current Urology |
Volume | 6 |
Issue number | 3 |
DOIs | |
State | Published - Jan 2013 |
Keywords
- Benign prostatic hyperplasia
- Bladder outlet obstruction
- Free uroflow
- Non invasive testing
- Voiding dysfunction index
ASJC Scopus subject areas
- Reproductive Medicine
- Oncology
- Urology