Kimura A, Kurimoto S, Saiko Y, Hosaka Y, Kitamura T, Kawabe K, Nakamura S, Hamada C
Department of Urology, University of Tokyo, Japan.
Nihon Hinyokika Gakkai Zasshi. 1995 Dec;86(12):1728-34. doi: 10.5980/jpnjurol1989.86.1728.
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.
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.
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?"
Before wider use of IPSS in Japan, the correct translation of the questions and verification of the usefulness of the questions in large number of Japanese patients seem necessary.
尽管国际前列腺症状评分（IPSS）现在常被用于评估良性前列腺增生（BPH）的症状，但患者回答问题是否正确尚未得到客观验证。
通过对20名住院男性患者进行24小时尿流率测定来评估IPSS的可靠性。其中6名患者患有前列腺肥大或癌症，对这6名患者在经尿道前列腺切除术（TURP）或激素治疗前后进行评估。尿频和夜尿的客观评分从IC卡记录的时间中获取。间歇性的客观评分根据尿流曲线计算得出。
与尿频的客观评分相比，关于尿频的回答不正确。关于夜尿和间歇性的回答与相应的客观评分几乎相同。关于尿流无力的回答与峰值流速平均值相关。然而，同一患者在治疗前后，“尿流无力”的峰值流速阈值波动明显。关于排尿踌躇的回答与踌躇时间无关。患者似乎理解日语翻译的问题“排尿时是否需要用力？”
在日本更广泛使用IPSS之前，问题的正确翻译以及在大量日本患者中验证问题的有效性似乎是必要的。
