COMPARISON OF DIFFERENT ECHOCARDIOGRAPHIC INDICES FOR PREDICTION OF FLUID RESPONSIVENESS POST OPEN CARDIAC SURGERY

Background: Superior vena cava collapsibility (SVC C), inferior vena cava distensibility (IVC D) and internal jugular vein distensibility (IJV D) can be used as dynamic parameters for assessment of fluid responsiveness.Aim: This study aimed to compare superior vena cava collapsibility, inferior vena cava distensibility and internal jugular vein distensibility as regards their efficacy for fluid responsiveness assessment post cardiac surgery.Patients and Methods: 30 patients of the American Society of Anaesthesiology (ASA) physical status II or III, of both sexes, aged 18-60 years and scheduled for on-pump CABG surgery were enrolled in the study.Results: SVC CI had a 75% sensitivity for detection of fluid responsiveness with 80% positive predictive value. It had a specificity of 78.57% with a 73.33% negative predictive value. It had an accuracy of 76.67%. IVC DI has a 68.75% sensitivity for detection of fluid responsiveness with a 68.75% positive predictive value. It had a specificity of 64.29% with a 64.29% negative predictive value. It had an accuracy of 66.67%. IJV DI had a 56.25% sensitivity for detection of fluid responsiveness with 60% positive predictive value. It had a specificity of 57.14% with a 53.33% negative predictive value. It has an accuracy of 56.67%. Conclusion: SVC CI had more sensitivity, specificity and accuracy in fluid responsiveness prediction followed by IVC DI and IJV DI respectively.