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. 2015 Jul 15;8(7):10586-94.
eCollection 2015.

Comparision of ultrasound-based methods of jugular vein and inferior vena cava for estimating central venous pressure

Mucahit Avcil  1 , Mucahit Kapci  1 , Bekir Dagli  1 , Imran Kurt Omurlu  2 , Emre Ozluer  1 , Kivanc Karaman  1 , Ali Yilmaz  3 , Cemil Zencir  4
Affiliations

Comparision of ultrasound-based methods of jugular vein and inferior vena cava for estimating central venous pressure

Mucahit Avcil et al. Int J Clin Exp Med. .

Abstract

Objective: The aim in this study was to compare the ultrasound estimation of the jugular vein diameter (IJVmax, IJVmin) and area (IJVarea), the height of the right internal jugular vein (CVPusg), the vena cava diameter (IVCmax, IVCmin), and the vena cava index (IVCindex) with direct estimation of central venous pressure (CVPinv).

Methods: Ultrasonography was performed on 37 nonventilated and 36 ventilated patients while monitoring central venous pressure. The IJV and IVC were measured during the respiratory cycle and the IJVarea and IVCindex were calculated. Tapering portion of the right IJV defined and height from this point to the sternal angle was used to estimate CVPusg.

Results: A CVP of 10 mmHg was chosen as a clinically significant cutoff for high CVP, and 6 mmHg was chosen for low CVP estimation. The CVPusg, IJVmax and IJVmin correlated moderately with CVPinv (R² = 0.66, 0.53, and 0.54, respectively) whereas the IVCmax, IVCmin and IVCindex showed poor correlation (R² = 0.29, 0.32 and 0.27, respectively). The CVPusg cutoff value of 7 predicted CVPinv > 10 mmHg with sensitivity of 90%, specific-ity of 67.3% and predicted CVPinv < 6 mmHg with sensitivity of 77%, specificity of 68%. IJVmax, IJVmin, IJVarea and IVCmax showed high sensitivity (90.32%, 83.87%, 90.32%, and 93.10%, respectively) for low CVP levels. The IVCindex has high sensitivity (95.2%) and poor specificity (42.9%) for high CVP levels.

Conclusion: IVCindex and CVPusg has better diagnostic performance for estimating high CVP. IJVmax, IJV area, and IVCmax showed high sensitivity and NPV for low CVP levels.

Keywords: Jugular vein; central venous pressure; ultrasound; vena cava inferior.

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Figures

Figure 1
Figure 1
Transvers view of internal juguler vein maximal diameter (IJVmax).
Figure 2
Figure 2
Sagittal view of the IJV showing the tapering portion of the vein.
Figure 3
Figure 3
Vertical distance between marked skin and sternal angle.
Figure 4
Figure 4
Ultrasonographic determination of inferior vena cava diameter.
Figure 5
Figure 5
Basic algorithm of CVP estimation via ultrasound based methods.
See this image and copyright information in PMC

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