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Examination of urination difficulty by data processing

Research Project

Project/Area Number 06671610
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field Urology
Research InstitutionJICHI Medical School

Principal Investigator

NAKAMURA Syohei  School of Mcdecine, Jichi Medical School Associate proc., 医学部, 助教授 (40107636)

Project Period (FY) 1994 – 1995
Project Status Completed (Fiscal Year 1995)
Budget Amount *help
¥2,100,000 (Direct Cost: ¥2,100,000)
Fiscal Year 1995: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 1994: ¥1,600,000 (Direct Cost: ¥1,600,000)
Keywordsuroflowmetry / urination difficalty / B.P.H. / circadian change / urinary frequency / voided volume / 頻度
Research Abstract

A total of 2703 urinations from 50 patients was recorded on a 24-hour uroflowmetry system, and analyzed with respect to circadian changes in frequency, urine volume per hour (diuresis), and urine volume per urination (bladder capacity). The 50 cases included 25 cases with BPH (benign prostate hypertrophy), 8 cases with prostate cancer and 17 with other urological disease unrelated to urination difficulty. All patients were divided into two age groups : a middle-aged group (24 cases, <65 years, average 54.7 years) and an elderly group (26 cases, >66 years, average 71.6 years). The twenty-four-hour recording period was divided into 8 epochs of 3 hours each. Daytime epochs of 3 hours each between 6 : 00 a.m.and 21 : 00 p.m.were designated as D1-D5, and nocturnal epochs between 21 : 00 and 6 : 00 were designated as N1-N3.
Over a 24-hour period, the elderly group showed increased frequency and reduced bladder capacity. No difference was observed in diuresis between the two age groups. In N2 and N3, the frequency of the elderly group was significantly higher (p<0.01) compared to the middle-aged group. This increase was due primarily to the increase in diuresis in these epochs, because a strong correlation was observed between frequency and diuresis and no correlation was observed betweenfrequency and bladder capacity.

Report

(3 results)
  • 1995 Annual Research Report   Final Research Report Summary
  • 1994 Annual Research Report
  • Research Products

    (6 results)

All Other

All Publications (6 results)

  • [Publications] S.Nakamura et,al: "Circadiau changes in uvine volume in elderly men and trequsacy" J.Urol.(in press).

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 木村明ほか: "終日ウロフローメトリによるlpssの信頼性の検討" 日泌尿会誌. 86. 1728-1734 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] A.Kimura, S.Kurimoto, Y.Saiko, Y.Hosaka, T.Kitamura, K.Kawabe, S.Nakamura and T.Hamada: "Evaluation of reliability of IPSS by 24-hour uroflowmetry." Jpn.J.Urol.86. 1728-1734 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] S.Nakamura, Y.Kobayashi, K.Tozuka, A.Tokue, A.Kimura and T.Hamada: "Circadian changes in urine volume and frequency in elderly men." Journal of Urology. (in press).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] S. Nakamura et al.: "Circadian changes in urinevolume and frequency in elderly men" J. Urol. (1996)

    • Related Report
      1995 Annual Research Report
  • [Publications] 木村明ほか: "終日ウロフローメトリによるIPSSの信頼性の検討" 日泌尿会誌. 86. 1728-1734 (1995)

    • Related Report
      1995 Annual Research Report

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Published: 1994-04-01   Modified: 2016-04-21  

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