Mori Hidehisa, Fukumori Tomoharu, Daizumoto Kei, Tsuda Megumi, Kusuhara Yoshihito, Fukawa Tomoya, Yamamoto Yasuyo, Yamaguchi Kunihisa, Takahashi Masayuki, Kubo Akiko, Kawanaka Takashi, Furutani Shunsuke, Ikushima Hitoshi, Kanayama Hiro-Omi
Department of Urology, Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima, Japan
Department of Urology, Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima, Japan.
In Vivo. 2017 Jul-Aug;31(4):755-761. doi: 10.21873/invivo.11127.
We assessed the change in LUTS after prostate brachytherapy to reveal factors for prolonged urination disorder.
Four hundred and four patients received prostate brachytherapy at our institution and were followed-up for at least 2 years. We evaluated the correlation of mean IPSS changes and clinical factors. Using multivariate analysis, we also evaluated clinical factors with potential to delay IPSS resolution.
In cases with prostate volume more than 30 cm, radiation dose to 90% of prostate volume (D90) more than 160 Gy, and radiation dose to 30% of the urethral volume (UD30) more than 240 Gy, mean IPSS levels were significantly higher, even 30 months after treatment. On multivariate analysis, baseline IPSS more than 8 points and D90 more than 160 Gy were significant predictors for delayed IPSS resolution.
Our data suggest that higher baseline IPSS and higher D90 were predictors for prolonged urination disorder.
我们评估了前列腺近距离放射治疗后下尿路症状(LUTS)的变化,以揭示导致排尿障碍持续时间延长的因素。
404例患者在我院接受了前列腺近距离放射治疗,并进行了至少2年的随访。我们评估了平均国际前列腺症状评分(IPSS)变化与临床因素之间的相关性。通过多因素分析,我们还评估了可能延迟IPSS恢复的临床因素。
在前列腺体积大于30 cm³、前列腺体积90%的辐射剂量(D90)大于160 Gy以及尿道体积30%的辐射剂量(UD30)大于240 Gy的病例中,即使在治疗后30个月,平均IPSS水平仍显著更高。多因素分析显示,基线IPSS大于8分和D90大于160 Gy是IPSS恢复延迟的显著预测因素。
我们的数据表明,较高的基线IPSS和较高的D90是排尿障碍持续时间延长的预测因素。