title: Monitoring tissue blood oxygen saturation in the internal jugular venous area using near infrared spectroscopy.
abstract: Central venous blood oxygen saturation (ScvO2) is an important monitoring index of fluid resuscitation. However, monitoring of ScvO2 is not continuous and invasive. Near infrared spectroscopy (NIRS) is an optical technology for the noninvasive detection of hemodynamic changes, with advantages of being real-time, continuous, low-cost, and portable. The present study aimed to determine whether a correlation exists between the tissue blood oxygen saturation in the internal jugular venous area (StO2) data obtained with NIRS and the ScvO2 and whether these two quantities are equivalent. Data were collected from 13 patients. We used ultrasound to locate the placement site for the NIRS light source outside the internal jugular vein. Meanwhile, a sample for blood gas analysis was obtained through the central venous catheter. A correlation analysis between the StO2 and ScvO2 of 13 samples was performed (Pearson correlation coefficient), suggesting a high correlation between them (r = 0.906, StO2 =1.0018 ScvO2 +2.8524). Bland-Altman analysis was also performed between the StO2 and ScvO2. Results were as follows: 100% of monitored points fell within the range of the mean ± 1.96 SD of the difference between the StO2 and ScvO2; range of the mean ± 1.96 SD of the difference between the StO2 and ScvO2 was 3 ± 10.2; confidence interval of the difference between the StO2 and ScvO2 was -7.2 to 13.2%. The StO2 monitored with NIRS correlated highly with the ScvO2 measured in the internal jugular vein. Therefore, the StO2 can be used for directing clinical treatment with further research.
authors: Department of Anesthesiology and Surgical Intensive Care Unit, Xin Hua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
authors: Z S
authors: ZS
authors: Ruan
authors: State Key laboratory of Electronic Thin Films and Integrated Devices and Biomedical Engineering Department, University of Electronic Science & Technology, Chengdu, China.
authors: T
authors: T
authors: Li
authors: Department of Anesthesiology and Surgical Intensive Care Unit, Xin Hua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
authors: R R
authors: RR
authors: Ren
authors: State Key laboratory of Electronic Thin Films and Integrated Devices and Biomedical Engineering Department, University of Electronic Science & Technology, Chengdu, China.
authors: Y
authors: Y
authors: Zhao
authors: State Key laboratory of Electronic Thin Films and Integrated Devices and Biomedical Engineering Department, University of Electronic Science & Technology, Chengdu, China.
authors: K
authors: K
authors: Li
authors: Department of Anesthesiology and Surgical Intensive Care Unit, Xin Hua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
authors: Y F
authors: YF
authors: Mao
authors: Department of Anesthesiology and Surgical Intensive Care Unit, Xin Hua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
authors: G
authors: G
authors: Shen
authors: Department of Anesthesiology and Surgical Intensive Care Unit, Xin Hua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China laij_laij@163.com.
authors: L
authors: L
authors: Jiang
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D001784:Blood Gas Analysis; D005260:Female; D006801:Humans; D007601:Jugular Veins / Q000378:metabolism*; D016014:Linear Models; D008297:Male; D008991:Monitoring, Physiologic / Q000379:methods*; D010100:Oxygen / Q000097:blood*; D010313:Partial Pressure; D015203:Reproducibility of Results; D019265:Spectroscopy, Near-Infrared / Q000379:methods*
chemical_list: D010100:Oxygen