前立腺推定容積,最大尿流率,残尿量及びI-PSSによる下部尿路閉塞の推定  [in Japanese] The prediction of bladder outlet obstruction with prostate volume, maximum flow rate, residual urine and the international prostate symptom score in patients with lower urinary tract symptoms  [in Japanese]

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Abstract

前立腺推定容積,最大尿流率,残尿量及び国際前立腺症状スコア(I-PSS)をパラメーターとして,どの程度下部尿路閉塞を予測できるかという点について,50歳以上の外来受診男患者のうち,I-PSSが8点以上で生活の質の指標(QOL index)が2点以上の114例を対象として検討した.対象に対してI-PSSによる下部尿路症状の定量化に加え,経直腸的前立腺超音波検査による前立腺推定容積の測定(0.523×横径×縦径×前後径)及び圧-流量検査(PFS)を行った.PFSにより,最大尿流率,最大尿流率時排尿筋圧及び残尿量を測定した."下部尿路閉塞あり"の症例の割合が90%以上となる条件は,前立腺推定容積が35ml以上,最大尿流率8ml/sec以下,残尿量110ml以上,I-PSSは30点以上であった.これらのいずれかの条件に当てはまる症例は全体の58.8%を占めた.即ち,下部尿路症状を有する症例は59%の症例においては,これらのパラメーターにより90%の信頼度で推定が可能であった

We determined whether prostate volume (PV), maximum flow rate (Qmax), residual urine (RU) and the International Prostate Symptom Score (I-PSS) predicted bladder outlet obstruction in patients having lower urinary tract symptoms (LUTSs). The study consisted of 114 patients aged 50 years or older with LUTSs who had scores of 8 or more on the I-PSS and 2 or more for the quality of life index. All patients received transrectal ultrasonography for estimation of PV and pressure-flow study (PFS). When PFS showed an obstruction grade of 2 or more in Schafer's p/Q diagram, the result was defined as bladder outlet obstruction. When we examined which criteria indicated that 90% of patients had bladder outlet obstruction (positive predictive value: 90%), we found that PV of 35 ml or more, Qmax of 8 ml/sec or less, RU of 110 ml or more, and I-PSS of 30 or more did so. Fifty-nine percent of patients met at least one of these criteria. The results suggested that 59% of patients with LUTSs had bladder outlet obstruction with a 90% positive predictive value based on the value of PV, Qmax, RU or I-PSS.

Journal

  • 泌尿器科紀要

    泌尿器科紀要 47(12), 843-847, 2001-12

    泌尿器科紀要刊行会

Cited by:  1

Codes

  • NII Article ID (NAID)
    120002142227
  • NII NACSIS-CAT ID (NCID)
    AN00208315
  • Text Lang
    JPN
  • Article Type
    Journal Article
  • ISSN
    0018-1994
  • Data Source
    CJPref  IR 
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