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Background Measurements of central venous pressure (CVP), pulmonary arterial catheterization, esophageal Doppler, ultrasound, and trans-esophageal echocardiography may be used to determine the volume status of critically ill patients. Appropriate interpretation of the information offered by hemodynamic monitoring requires the integration of several variables. Echocardiography is increasingly used as a first tool to identify a problem and help select initial treatment. To improve patient management and outcome, the clinician must understand the advantages and the limitations of the various tools and parameters used during ICU stay. Aim of the Work to assess the intravascular volume by comparing between IVC diameter, IVC collapsibility index by ultrasound with central venous pressure (CVP) in critically ill patients. Patients and Methods A clinical interventional study was carried out at department of intensive care at Ain Shams University hospitals – Cairo – Egypt., during a three months (from October 2017 till December 2017).This study was approved by Ethical Committee of Faculty of Medicine, Ain Shams University, including the informed consents which were obtained from either the patient or the closest family member. Results In our study the IVC Collapsibility Index correlated well with the Central Venous Pressure. The sensitivity and specificity of IVC Collapsibility to Central Venous Pressure were also found to be highly statistically significant. The change in IVC diameters were also found to be statistically significant when compared to Central Venous Pressure. Conclusion The IVC CI% can provide a useful guide for noninvasive intravascular volume status and an alternative to CVP measurement assessment in critically ill patients.

Ultrasound Measurement of Inferior Vena Cava Diameter versus Central Venous Pressure as a Tool of Assessment of Intravascular Volume in Adult ICU Patients