Introduction: -  Hemodynamic assessment is a critical aspect of patient care, particularly in situations where accurate estimation of central venous pressure (CVP) is essential for guiding clinical management. Traditional methods of CVP measurement involve invasive procedures that can lead to complications and are often time-consuming. In recent years, point-of-care ultrasound (POCUS) has emerged as a valuable tool for non-invasive hemodynamic assessment. Specifically, the collapsibility indices of the internal jugular vein (IJV) and inferior vena cava (IVC) have gained attention as reliable indicators of CVP. This comparative study aims to evaluate the effectiveness of IJV collapsibility index and IVC collapsibility index, as determined through POCUS, in estimating CVP when compared with direct CVP estimation methods.

Material & methods: - This single-centre, observational, comparative study designed to assess whether IJV measurements would correlate with that of IVC measurements and invasively monitored CVP in critically ill patients.