Lower blood return temperature than core temperature as a causal factor of decreased cardiac output assessed by transpulmonary thermodilution during blood purification.

Therapeutic Apheresis and Dialysis : Official Peer-reviewed Journal of the International Society for Apheresis, the Japanese Society for Apheresis, the Japanese Society for Dialysis Therapy
Tomoyuki NakamuraOsamu Nishida

Abstract

We aimed to evaluate whether cardiac output assessed by transpulmonary thermodilution during blood purification is affected by the difference between the blood return temperature and core temperature. We applied different blood return temperatures using a thermostat bath during blood purification in four pigs. After the blood return temperature stabilized and blood purification process stopped, the cardiac output assessed by transpulmonary thermodilution was measured. The thermostat bath was set at 35°C, 40°C, 45°C, and 50°C, with the order changed at random; four measurements were made at each temperature. Cardiac function was evaluated by echocardiography when ice-cold saline was administered in a pig. A decrease in the blood return temperature resulted in decreased cardiac output assessed by transpulmonary thermodilution, whereas an increase resulted in increased cardiac output assessed by transpulmonary thermodilution. Echocardiography revealed that the change in the blood return temperature did not affect the left ventricular ejection fraction.

References

Dec 1, 1995·American Journal of Respiratory and Critical Care Medicine·M HallerK Peter
Feb 27, 2010·Anesthesia and Analgesia·Daniel A ReuterHolger K Eltzschig
Sep 10, 2014·Therapeutic Apheresis and Dialysis : Official Peer-reviewed Journal of the International Society for Apheresis, the Japanese Society for Apheresis, the Japanese Society for Dialysis Therapy·Friederike ComptonTimm Westhoff
Sep 10, 2014·Acta Veterinaria Scandinavica·Urszula PaslawskaPiotr Ponikowski
Jun 20, 2017·Critical Care : the Official Journal of the Critical Care Forum·Xavier Monnet, Jean-Louis Teboul
May 12, 2018·Therapeutic Apheresis and Dialysis : Official Peer-reviewed Journal of the International Society for Apheresis, the Japanese Society for Apheresis, the Japanese Society for Dialysis Therapy·Takahiro KawajiOsamu Nishida

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