Abstract
Introduction: BOON (Bladder Outlet Obstruction Number) is based upon non-invasively obtained parameters and selects men with LUTS suggestive of BPH in whom infravesical obstruction is most likely. Aim was to investigate the proportion of agreement between treatment choice based upon diagnostics including the non-invasively obtained BOON, and treatment choice based upon diagnostics including the invasively obtained Schäfer's obstruction grade. Methods: From 114 men with LUTS for each patient two summaries of relevant medical data were made. One summary included the BOON and the other one included the Schäfer's grade. Each case was evaluated separately twice by an experienced and by a starting urologist. Results: There was moderate (Schäfer's grade) to fair (BOON) agreement between both observers. For both urologists a fair to substantial agreement existed between the evaluation on time 1 and the evaluation on time 2. Agreement in choice of treatment between BOON and Schäfer's grade was substantial for the experienced urologist and fair for the starting urologist. For BOON ≥-20 (31% of all men: probability of obstruction 70% or higher) percentages of agreement for both urologists were 85% or more. Conclusion: Replacing Schäfer's grade by BOON in the diagnostics of men with LUTS suggestive of BPH does not result in significant changes in treatment choices.
| Translated title of the contribution | The diagnostic value of the BOON versus the Schäfer-classification in men older than 50 years with LUTS due to benign prostatic hyperplasia |
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| Original language | Dutch |
| Pages (from-to) | 127-133 |
| Number of pages | 7 |
| Journal | Nederlands Tijdschrift voor Urologie |
| Volume | 10 |
| Issue number | 4 |
| Publication status | Published - Sept 2002 |