Correlation Between Inferior Vena Cava Collapsibility Index And Central Venous Pressure To Assess Volume Status Of Critical Patients In Intensive Care Unit In RSUP H. Adam Malik Medan

Abstract

Introduction: Assessment of intravascular volume are essential in improving the patient s condition during critical care, but no single standard examination is ideal. Sonographic examination is emerging as a potential non-invasive diagnostic tool for assessing intravascular fluid status by measuring IVC diameter. Objective: To determine correlation between Central Venous Pressure and Inferior Vena Cava Collapsibility Index to assess volume status of critically ill patients in ICU care. Methods: This is an observational analytic study, with cross sectional method which performed at Intensive Care Unit (ICU) RSUP H. Adam Malik Medan in July-September 2020. Samples were patients aged 18-65 years, with a BMI of 18-30, hospitalized in ICU with central venous catheter. Exclusion criteria were patients with heart defects and pregnant women. The study conducted by examining value of central venous pressure in patients who were admitted to the ICU, then assessing inferior vena cava collapsibility index using Doppler ultrasound. Then, an assessment correlation inferior vena cava collapsibility index and central vena pressure was assessed using the Pearson Correlation test or independent T-test. Results: This study was followed by 31 subjects who met the inclusion criteria. Based on characteristics of sample, sample mean age was 43.45 ± 16.7 years with p = 0.069 and number of female samples was 17 samples (54.8%). There was a correlation between IVC CI and CVP with r = -0.937 and p = 0.001, which means there is a strong negative correlation between it and statistically significant. In addition, in correlation between IVC CI and CVP values on use of mechanical ventilation, there was no statistically significant difference in IVC CI values in mechanically ventilated sample with sample not using mechanical ventilation (p = 0.250). Conclusion: There is a strong negative correlation between inferior vena cava collapsibility index (IVC CI) and central venous pressure (CVP) in assessment of volume status patients hospitalized in ICU.