The Comparison of Pulse Oximetry and Cardiac Catheterization in Managing the Treatment of Children with Congenital Heart Disease

Abstract

Bachground & aim: Pulse oximetry and cardiac catheterization are concerned in the treatment of children with congenital heart disease. Diagnosis of arterial oxygen saturation in patients with congenital heart disease (CHD) can be used to assess and manage their effecacy. The purpose of this study was to compare pulse oximetry and cardiac catheterizations in treatment manage of children with congenital heart disease. Methods: In the present cross sectional study, 110 patients with cyanic and non syani heart disease were studied undergoing right and left heart catheterization by pulse oximetry of index finger and simultaneously, oxygen saturation was measured by cardiac catheterization. Data were analyzed with SPSS software by using Pearson correlation and linear regression. Results: A significant correlation was seen between arterial oxygen saturation measured by pulse oximetry and arterial oxygen saturation (p<0.0001) as well as heart rate, electrocardiogram and pulse oximetry (p<0.0001) respectively. Furthermore, the presence of cyanosis (p=0.001), digital clubbing of the fingers ((p=0.001), low oxygen saturation in the superior vena cava and right atrium (p=0.002) can reduce the accuracy of pulse oximetry for detection of arterial oxygen saturation. The mean right atrial pressure can effect on accuracy of pulse oximetry to detect heartbeat (p=0.034). Maximum sensitivity and specificity for detection of pulse oximetry oxygen saturation was 88 % and 88 heart rate per minute. Conclusion: Pulse oximetric is a useful tool for estimating the arterial oxygen saturation and heart rate in children with congenital heart disease (CHD) and is a non-invasive method in comparison with cardiac catheterization. Key words: Pulse oximeter, Congenital Heart Disease, Cardiac Catheterizatio