[Usefulness of mixed venous oxygen saturation as a monitor of hemodynamic state during pulmonary resection].
We studied the relation between SVO2 and other hemodynamic parameter during lung resection in 28 patients. SVO2, SaO2, CI, Hb and VO2 were measured using a fiberoptic pulmonary artery catheter. SaO2 decreased significantly after collapse of a nondependent lung because of shunt effect, whereas SVO2 remained stable. VO2 and CI increased remarkably and SVO2 decreased gradually after restoration of two lung ventilation suggesting imbalance of auto-regulatory mechanism. SVO2 remained significantly low after extubation in patients whose blood loss of more than 1,000 ml was replaced by stored blood transfusion. We think that the constant number 1.38 in Fick equation should be reset below 1.38 according to the volume of transfused blood, if blood loss was replaced by stored blood.
Kubota
H
H
Department of Cardiothoracic Surgery, University of Tokyo, School of Medicine, Japan.
Yagyu
K
K
Kotsuka
Y
Y
Furuse
A
A
D000328:Adult; D000368:Aged; D005260:Female; D006439:Hemodynamics; D006801:Humans; D008175:Lung Neoplasms / Q000503:physiopathology / Q000601:surgery; D008297:Male; D008875:Middle Aged; D016343:Monitoring, Intraoperative / Q000379:methods*; D010100:Oxygen / Q000097:blood*; D011013:Pneumonectomy; D014680:Veins
D010100:Oxygen