The Japanese Journal of Urology
Online ISSN : 1884-7110
Print ISSN : 0021-5287
ISSN-L : 0021-5287
EVALUATION OF RELIABILITY OF IPSS BY 24-HOUR UROFLOWMETRY
Akira KimuraShigeharu KurimotoYasushi SaikoYoshio HosakaTadaichi KitamuraKazuki KawabeShohei NakamuraChikuma Hamada
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1995 Volume 86 Issue 12 Pages 1728-1734

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Abstract

(Background) Although the international prostate symptom score (IPSS) is now often used to assess the symptoms of BPH, whether or not patients answer the questions correctly has not been validated objectively.
(Methods) Reliability of IPSS was evaluated by 24-hour uroflowmetry in 20 hospitalized male patients. Six of them had prostatic hypertrophy or cancer, and the evaluation was performed before and after TURP or hormonal therapy in these six patients. The objective scores for frequency and nocturia were obtained from the time recorded on IC card. The objective score for intermittency was calculated from the uroflow curves.
(Results) The answer about frequency was not correct compared with the objective scores for frequency. The answers about nocturia and intermittency were almost the same as the corresponding objective scores. The answer for weak stream correlated with the average of peak flow rate. However, the threshold of peak flow rate for “weak stream” fluctuated markedly before and after the treatment in the same individuals. The answer for hesitancy had no correlation with the hesitation time. Patients seemed to understand the question translated in Japanese as “have you need force to urinate?”.
(Conclusion) Before wider use of IPSS in Japan, the correct translation of the questions and verification of the usefullness of the questions in large number of Japanese patients seem necessary.

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© Japanese Urological Association
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