Fig. 4

Anesthetic record. The pulsatile waveforms were maintained on ABP. When the patient was placed in the left lateral decubitus position, CVP increased from 12 mmHg to 20 mmHg (A). After insertion of the access ports, SpO2 decreased to 91% at FiO2 of 1.0, and the CVP reached 20 mmHg, although the mean ABP was maintained at approximately 85 mmHg (B). ABP: arterial blood pressure, CVP: central venous pressure, SpO2: saturation of percutaneous oxygen, FiO2: fraction of inspiratory oxygen, OLV: one-lung ventilation. X: start and completion of anesthesia, ◎: start and completion of surgery, ▽: intubation, △: extubation