Abstract
To investigate which indicator is more advantageous when using arterial oxygen saturation (SaO2) and fingertip pulse oxygen saturation (SpO2) for blood oxygen detection in patients with hyperleukocytic acute leukemia (HAL). In this prospective research, the difference between SaO2 and SpO2 of 18 HAL patients (observation group) and 14 patients (control group), as well as the relationship between the difference and white blood cell (WBC) counts were analyzed. SaO2 was lower than SpO2 in the observation group (P <0.05), and SpO2-SaO2 difference was positively correlated with WBC counts (r =0.47). However, there was no statistical difference between SaO2 and SpO2 in the control group. SaO2 and PO2 showed a downward trend with the prolongation of detection time after arterial blood was collected in the observation group, but there was no statistical difference. There was no downward trend of SaO2 and PO2 in the control group. HAL patients have a phenomenon where SaO2 is lower than SpO2, that is pseudohypoxemia, and this phenomenon may be caused by excessive consumption of oxygen by the leukemia cells in vitro SpO2 can be monitored bedside in real time and is non-invasive, it is a better way to detect the blood oxygen status of HAL patients.
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