Critical Hematocrit

  • D. R. Spahn
  • T. Pasch
Conference paper
Part of the Yearbook of Intensive Care and Emergency Medicine book series (YEARBOOK, volume 1996)


Avoiding allogeneic blood transfusions is an important issue in the perioperative care of surgical patients. Thereby, hemodilution and acceptance of low hematocrit values are of paramount significance [1, 2]. A fundamental question in this context concerns the critical hematocrit, i.e. the lowest hematocrit tolerated without organ dysfunction. However, at present time, there is no generally applicable number regarding the critical hematocrit. The aim of this chapter thus is to summarize available information relevant for defining a critical hematocrit level for different organ systems, types of surgery, concomitant diseases, age of the patient and various phases of the perioperative period.


Cardiac Index Allogeneic Blood Transfusion Splanchnic Organ Acute Normovolemic Hemodilution Single Vessel Coronary Artery Disease 
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Copyright information

© Springer-Verlag Berlin Heidelberg 1996

Authors and Affiliations

  • D. R. Spahn
  • T. Pasch

There are no affiliations available

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