Researchers Database

igarashi takashi

    Anestheesiology Professor
Last Updated :2022/01/13

Researcher Information


  • (BLANK)(Jichi Medical University)

J-Global ID

Research Interests

  • 硬膜外腔内視鏡   Epiduroscopy   

Research Areas

  • Life sciences / Anesthesiology

Association Memberships

  • 日本救急医学会   日本ペインクリニック学会   日本集中治療医学会   日本麻酔学会   


  • エピドラスコピー
    ペインクリニック  22-  41  2001  [Not refereed][Not invited]
  • Epiduroscopy
    Pain Clinic  22-  41  2001  [Not refereed][Not invited]
  • T Igarashi, Y Hirabayashi, R Shimizu, K Saitoh, H Fukuda, H Suzuki  ANESTHESIOLOGY  92-  (6)  1631  -1636  2000/06  [Not refereed][Not invited]
    Background: The spread of epidural analgesia is facilitated by pregnancy. Changes in the epidural structure during pregnancy may affect the spread of analgesia in pregnant women. To investigate the changes in the epidural space produced by pregnancy, the authors performed epiduroscopy in pregnant women. Methods: Using a flexible fiberscope, the authors evaluated the epidural space in 73 women undergoing lumbar epidural anesthesia. Patients were classified into three groups: a nonpregnant group (n = 21), a first trimester pregnant group (8-13 weeks, n = 23), and a third-trimester pregnant group (27-39 weeks, n = 29). A 17-gauge Tuohy needle was inserted using the paramedian technique and the loss-of-resistance method with 5 mi air. The epiduroscope was introduced into the lumbar epidural space via the Tuohy needle and was advanced approximately 10 cm in a cephalad direction from the needle tip within the epidural space. The differences in the epidural space among the three groups then was evaluated. Results: The epiduroscopy showed that the epidural pneumatic space, after injection of a given amount of air, was narrower and the density of the vascular network greater in the third-trimester group than in the other two groups. The amount of engorged blood vessels was greater in the third and first trimester groups than in the nonpregnant group. The amount of bleeding at the needle tip and the amount of fatty and fibrous connective tissue did not differ among the three groups. Conclusions: Epidural blood vessels become engorged in the first trimester; the density of the vascular networks increase in the third trimester, These changes in the epidural space during pregnancy may affect the spread of epidural analgesia in pregnant women.

Awards & Honors

  • 1996 第25回日本私立大学麻酔科教授会優秀論文賞

Research Grants & Projects

  • 麻酔,集中治療,ペインクリニック,救急
  • 麻酔に関する研究
  • 腰痛に関する研究
  • 硬膜外腔内視鏡に関する研究
  • Study on anesthesia
    The Other Research Programs
  • Study on epiduroscopy
    The Other Research Programs

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