The maintenance and monitoring of perioperative blood volume
1 Department of Perioperative Medicine, Division of Anesthesiology, School of Dentistry, Showa University
2 Department of Surgical Gastroenterology, Hvidovre University Hospital, Copenhagen, Denmark
3 Karolinska Institutet, Department of Clinical Science and Education, Section of Anesthesiology and Intensive Care, Södersjukhuset, Stockholm, Sweden
4 Clinic of Anesthesiology and Intensive Care, Vilnius University, Vilnius, Lithuania
Perioperative Medicine 2013, 2:9 doi:10.1186/2047-0525-2-9Published: 7 May 2013
The assessment and maintenance of perioperative blood volume is important because fluid therapy is a routine part of intraoperative care. In the past, patients undergoing major surgery were given large amounts of fluids because health-care providers were concerned about preoperative dehydration and intraoperative losses to a third space. In the last decade it has become clear that fluid therapy has to be more individualized. Because the exact determination of blood volume is not clinically possible at every timepoint, there have been different approaches to assess fluid requirements, such as goal-directed protocols guided by invasive and less invasive devices.
This article focuses on laboratory volume determination, capillary dynamics, aspects of different fluids and how to clinically assess and monitor perioperative blood volume.