• Ayten Saraçoğlu, Esra Yamansavcı Şirzai, Bedrettin Yıldızeli, Mustafa Yüksel, and Zeynep Zuhal Aykaç.
• Department of Anesthesiology and Intensive Care, Marmara University, Pendik Training and Research Hospital, İstanbul, Turkey.
• Turk J Med Sci. 2021 Oct 21; 51 (5): 241324192413-2419.

Background/AimContinuous oxygen reserve index (ORI) measurement with multiple wave pulse co-oximetry is a noninvasive measurement. The decrease in the ORI trend provides a prediction for the development of hypoxemia and provides info rmation on hyperoxia. Our aim is to determine the effect of ORI-guided oxygen titration on hyperoxemia-mediated morbidity.Materials And MethodsConsecutive 120 ASA I-III patients, 18–70 years of age, without severe obstruction or restriction, undergoing one lung ventilation (OLV), were included in the study. Patients were divided into 4 groups. Oxygen titration without ORI monitoring with low-flow anesthesia (1 L/min, Group 1, n = 25) and high-flow anesthesia (4 L/min, Group 2, n = 28). Oxygen titration by ORI monitoring with low flow anesthesia (1 L/min, Group 3, n = 25) and high flow anesthesia (4 L/min, Group 4, n = 25). FiO2 increased up to 100% if necessary. OLV time, duration of surgery and anesthesia, FiO2 applied during OLV, oxygen application time (T) over 60%, vital signs, hospital and ICU stay time, and complications were recorded.ResultsThere was a statistically significant difference in terms of FiO2 used during OLV (p < 0.05). There was no difference in ORI values (p < 0.05). In Group 3, both PaO2 and SpO2 were significantly lower than the others both before and during OLV. There was no significant difference in terms of ORI parameters between low flow and high flow anesthesia groups. There was a strong, positive correlation between the duration of hospital stay and FiO2 used above 80% during OLV.ConclusionWe concluded that ORI-guided thoracic anesthesia may reduce hospital stay and increase patient safety.This work is licensed under a Creative Commons Attribution 4.0 International License.

24 keywords...

hide…