THE VALUE OF A NEW SYMPTOM SCORE (DAN-PSS) IN DIAGNOSING URO-DYNAMIC INFRAVESICAL OBSTRUCTION IN BPH

Introduction: A new type of questionnaire for BPH, the DAN-PSS symptom score system, was used in an attempt to predict infravesical obstruct ion determined by pressure-flow study. Patients and methods: In 50 con secutive patients a reliable questionnaire and a pressure-flow was obt ained. Results: Almost none of the unobstructed patients had a total o bstructed index (TOI) of more than 6, whereas this was the case in hal f of the obstructed patients. This difference was statistically signif icant. Discussion: This study indicates, that if the total obstructed index (TOI) is more than 6, the patient most likely have an infravesic al obstruction. With this limit the DAN-PSS-score system can predict i nfravesical obstruction with a sensitivity of 42% and a specificity of 89%. Conclusion: With the new concept of combining quantity with qual ity in a symptom score system, a strong correlation between symptoms a nd objective findings has been found.