Arterial oxygenation during one lung ventilation in obese patients
Okamoto, K.; Kochi, T.; Yoshizaki, S.; Iiyori, N.; Kochi, A.
Masui. Japanese Journal of Anesthesiology 48(2): 168-171
1999
ISSN/ISBN: 0021-4892 PMID: 10087826 Document Number: 502527
To test the hypothesis that arterial oxygenation during one lung ventilation (OLV) is impaired more in obese patients than in non-obese control patients, we performed consecutive measurements of arterial oxygen tension (EQUATION) during OLV in 48 patients scheduled for pulmonary lobectomy. Minimum value of (EQUATION) during OLV was significantly less in 16 obese patients (body mass index (BMI) > 25) compared to 32 control patients (BMI<25). Moreover, (EQUATION) value of left lung ventilation was significantly less than the value of right lung ventilation in obese patients while the difference was not statistically significant in the control group.