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A Computer-Aided Controller of Fluid Infusion Rate in Post-Operative Management of Open Heart Surgery

  • Tsuyoshi Kawamura
  • Kyouichi Ogawa
  • Yasuhiro Fukui
  • Takanori Sakamaki
Conference paper

Abstract

During the extra-corporeal circulation in open heart surgery, the circulatory blood is diluted from 45% to 20% of hematocrit by massive crystalloid fluid to get the decreased blood viscosity and increased circulatory volume without any blood transfusion. After stopping the cardio-pulmonary bypass, all bypass blood is returned into the patient, resulting in an overinfused state by massive fluid. In the post-operative managements, the overinfused state should be corrected to the normal one by the optimal adjustment of water balance between urination and fluid infusion without disturbing the hemodynamics.

Keywords

Infusion Rate Urinary Volume Open Heart Surgery Circulatory Volume Bypass Blood 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Copyright information

© Springer-Verlag Tokyo 1992

Authors and Affiliations

  • Tsuyoshi Kawamura
    • 1
  • Kyouichi Ogawa
    • 1
  • Yasuhiro Fukui
    • 2
  • Takanori Sakamaki
    • 2
  1. 1.Cardiovascular SurgeryHyogo Brain and Heart Center at HimejiJapan
  2. 2.Science and EngineeringTokyo Denki UniversitySaitamaJapan

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