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Related Experiment Video

Updated: Mar 18, 2026

Modified Laparoscopic Anatomic Hepatectomy: Two-Surgeon Technique Combined with the Simple Extracorporeal Pringle Maneuver
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Acute Normovolemic Hemodilution in Surgery.

L T Goodnough1, M E Brecher2, T G Monk3

  • 1a Departments of Medicine and Pathology , Washington University School of Medicine , St. Louis , MO.

Hematology (Amsterdam, Netherlands)
|July 14, 2016
PubMed
Summary

Acute normovolemic hemodilution (ANH) is a blood conservation strategy rarely used today. This review explores recent advances and its role in autologous blood procurement.

Keywords:
Hemodilutionnormovolemicsurgery

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Area of Science:

  • Anesthesiology and Perioperative Medicine
  • Transfusion Medicine
  • Surgical Blood Conservation

Background:

  • Acute normovolemic hemodilution (ANH) involves removing whole blood and replacing it with acellular fluid to maintain blood volume before surgery.
  • Despite being studied over 25 years ago and recommended by expert panels, ANH is seldom practiced and remains controversial.
  • Recent research aims to clarify the understanding and application of this blood management technique.

Purpose of the Study:

  • To review recent advancements in the understanding of Acute Normovolemic Hemodilution (ANH).
  • To explore the emerging role of ANH in autologous blood procurement strategies.
  • To provide an updated perspective on this controversial blood conservation method.

Main Methods:

  • Literature review of recent studies and expert recommendations on ANH.
  • Analysis of ANH's application in contemporary surgical settings.
  • Examination of ANH's integration with autologous blood donation protocols.

Main Results:

  • Recent studies offer new insights into the physiological effects and safety of ANH.
  • ANH is being re-evaluated for its potential in specific surgical contexts.
  • Emerging data suggests ANH can be effectively combined with other autologous blood strategies.

Conclusions:

  • ANH, though controversial, warrants re-examination based on recent scientific understanding.
  • Its role in modern surgical practice, particularly in autologous blood management, is evolving.
  • Further research and standardized protocols may help address current controversies surrounding ANH.