مقايسه ي دو روش پالس اكسي متري و آزمايش گازهاي خون شرياني در تعيين درصد اشباع اكسيژن خون شرياني

Background There are many risks in the post anesthesia period for children who have undergone an operation. Non-invasive control of arterial blood gas not only contravenes invasive techniques, but also reduces costs. This study was designed to compare the results of pulse oximetry and ABG for detection of oxygen saturation in arterial blood in 1-36- month children undergone heart operation and hospitalized in Pediatrics Intensive Care Unit (PICU) of Tehran Shaheed Rajai Heart Hospital in 1997. Materials and Methods: This analytical study was conducted on 50 children who were selected serially. After 4 hours of hospitalization in PICU, I ml of arterial blood was taken arterial blood gas was checked. Pulse oximetery was also conducted at the same time. The demographic data of the subjects and the results of laboratory test was collected from their fills. T-test and coefficient of Personʹs correlation were used in the data analysis. Results: 57% of cases underwent open heart operation and 43% had closed heart operation. 42% of the cases were 12-36 months old and the age of 6% of cases were less than 3 months. There was a strong correlation between the results of pulse oximetery and arterial blood gases test for detection of oxygen saturation (R=0.995%). Conclusions: Pulse oximetery can be used as a non-invasive technique for detection of oxygen saturation in children who have undergone a heart operation. The use of the obtained formula in this research, for prediction of the results of oxygen saturation by ABG from the results of pulse oximetery is recommended.