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Published on: December 23, 2014
Internal Jugular Vein Height and Inferior Vena Cava Diameter Measurement using Ultrasound to Determine Central Venous
N A Nik Muhamad1, R S Safferi2, C E Robertson3
1PPUKM, Department of Emergency Medicine, Jalan Yaacob Latif, Bandar Tun Razak, Cheras, 68000, Kuala Lumpur, Malaysia. nikazlanmuhamad@hotmail.com.
Objective:
To determine the correlation between central venous pressure (CVP) measured by conventional central venous access and ultrasonographic measurement of internal jugular vein (IJV) height and inferior vena cava (IVC) diameter.
Methods:
A prospective, cross-sectional, convenience sampling observational study.
Results:
25 patients from the Emergency Department (ED) Universiti Kebangsaan Malaysia Medical Centre (UKMMC) were studied between 1st March and 30th April 2013. The median age was 63 years (95% CI 54-67). There was a significant correlation between IJV height and CVP using central venous access (r=0.64 p<0.001). Correlation between IVC diameter in end expiration and CVP was 0.74 (p<0.001). An IJV height measurement >8cm predicted a CVP >8cm H2O (sensitivity 71.4%, specificity of 83.3%).
Conclusion:
Measurement of IJV height and IVC diameter by ultrasonography correlates well with invasive CVP and is useful for the assessment of volume status in critically ill patients in the ED.
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