A Non-invasive method for assessment of intravascular fluid status: Inferior vena cava diameters and collapsibility index

Sinan Karacabey, Erkman Sanrı, Ozlem Guneysel

Abstract


Objective: To evaluate the correlation between central venous  pressure (CVP) and inferior vena cava (IVC) diameters measured by ultrasonography (Ultrasound) in critically ill patients.

Methods: Intubated critically ill patients were enrolled. The CVP values were measured using a U-tube manometer and were compared to the IVC diameters and collapsibility index, which were measured by bedside Ultrasound. Patients younger than 18 years old, who were not intubated, who had an abdominal pressure greater than 12 mmHg, and/or who were admitted for trauma were excluded from the study.

Results: Eighty three patients with a mean age of 73.6±11.2 years were enrolled. The most common diagnosis was sepsis (21 patients, 25.30%). IVC inspiration measurements were statistically significantly correlated with CVP measurements (p0.05, r: 0.1). IVC collapsibility measurements showed a negative correlation with CVP measurements (p<0.01, r: 0.68).

Conclusions: There is a strong correlation between CVP and IVC diameters and the collapsibility index. This is a new formula for evaluating CVP, based on our statistical analyses.

doi: http://dx.doi.org/10.12669/pjms.324.10290

How to cite this:Karacabey S, Sanri E, Guneysel O. A Non-invasive method for assessment of intravascular fluid status: Inferior vena cava diameters and collapsibility index . Pak J Med Sci. 2016;32(4):836-840.   doi: http://dx.doi.org/10.12669/pjms.324.10290

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


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