Role of the internal jugular venous valve during an increase in intrathoracic pressure

• Kotani Junichiro

  Department of Anesthesiology, Osaka Dental University

• Son Hiroki

  Department of Anesthesiology, Osaka Dental University

• Ito Tatsuhiko

  Department of Anesthesiology, Osaka Dental University

• Matsuda Yoshiko

  Department of Anesthesiology, Osaka Dental University

• Sugioka Shingo

  Department of Anesthesiology, Osaka Dental University

抄録

We investigated the ability of the internal jugular venous valve (IJVV) to buffer the transmission of pressure to the cerebral venous system during intrathoracic hypertension, by analyzing its transvalvular pressure gradients. The subjects were seven patients who underwent general anesthesia for oral surgery. After induction of anesthesia, one catheter was percutaneously inserted into the superior bulb of the internal jugular vein and another into the superior vena cava via the subclavian vein. These catheters were used to simultaneously monitor the internal jugular venous pressure (IJVP) and the superior vena caval pressure (SVCP). Pressure waves were recorded during intrathoracic hypertension caused by coughing at emergence. We examined the relationship of SVCP with the difference (⊿P) between variations in SVCP and IJVP. The SVCP had a positive linear correlation with ⊿P (⊿P mmHg=0.69 ・ SVCP-10.25, n = 101, r=0.837). Even when the SVCP increased significantly (>50 mmHg), the elevation in IJVP was suppressed, suggesting that the IJVV is usually competent during sudden increases in intrathoracic pressure.

収録刊行物

• Journal of Osaka Dental University

  Journal of Osaka Dental University 37 (1), 47-49, 2003

  大阪歯科学会

キーワード

• Internal jugular vein
• Intrathoracic pressure

詳細情報

• CRID: 1390282679939720832
• NII論文ID: 110001717449
• NII書誌ID: AA00704144
• DOI: 10.18905/jodu.37.1_47
• ISSN: 21896488
• ISSN: 04752058
• Web Site: https://search.jamas.or.jp/link/ui/2003297427
• 本文言語コード: en
• データソース種別:
  • JaLC
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可