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- Title
Use of Oxygen Saturation Index for monitoring of patients with hypoxic respiratory failure and role in predicting success of extubation in mechanically ventilated patients.
- Authors
Mohapatra, Asha Prakash; Ray, Gayatri; Pradhan, Pusparaj Aditinandan; Panda, Deshish Kumar; Rath, Saroj Shekhar
- Abstract
Background: Hypoxemic respiratory failure is an important cause of intensive care unit (ICU) admissions. Oxygen index (OI) and Oxygen saturation index (OSI) are important parameters used for diagnosing and monitoring critically ill children with hypoxic respiratory failure in ICU. Objectives: To find out the correlation between OI and OSI and to determine the reliability of OSI in predicting the success of extubation. Methods: This prospective study included children aged 1 month to 14 years requiring mechanical ventilation at a tertiary care teaching hospital over a period of 2 years. Arterial blood gas analysis was done; OI and OSI values were calculated as per protocol. Results: A total of 148 children were included (boys:girls = 2:1). Mean (± SD) OI of 4.9 ± 2.3 and OSI of 5.7 ± 2.8 were recorded with a mean difference of 0.75 ± 1.90. A good correlation was found between OI and OSI (0.73). The equation of correlation obtained was OI = 1.5 + (0.6 x OSI). A sensitivity of 89.7% at an OSI cut off of 4.15 (= OI of 4) in diagnosing P-ARDS was found. Good degree of correlation was found between predicting success of extubation and OSI (r = 0.32). Conclusions: Although good correlation exists between OI and OSI, many factors significantly affect the difference between the two. Therefore, OSI can be used as a reliable monitoring method in controlled settings after ensuring good patient selection, proper method of sampling and sample handling, good quality electronic devices and invasive monitoring facilities.
- Subjects
OXYGEN saturation; NONINVASIVE ventilation; RESPIRATORY insufficiency; ARTIFICIAL respiration; CRITICALLY ill children; PATIENT monitoring; INTENSIVE care units
- Publication
European Journal of Cardiovascular Medicine, 2024, Vol 14, Issue 2, p1163
- ISSN
2042-4884
- Publication type
Article