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Updated: Dec 21, 2025
04:34
A Novel Non-invasive Method for the Detection of Elevated Intra-compartmental Pressures of the Leg
Published on: May 31, 2019
9.6K
Non-Invasive Central Venous Pressure Measurement Using Enclosed-Zone Central Venous Pressure (ezCVPTM).
Takayuki Hidaka1, Yoji Sumimoto1, Yoshihiro Dohi1
1Department of Cardiovascular Medicine, Hiroshima University Graduate School of Biomedical and Health Science.
Summary
A new non-invasive technique, enclosed-zone (ezCVP) measurement, shows feasibility for estimating central venous pressure (CVP). This method offers a viable alternative to invasive catheterization for assessing fluid status.
Area of Science:
- Cardiology
- Critical Care Medicine
- Medical Devices
Background:
- Central venous pressure (CVP) is crucial for assessing intravascular fluid status.
- Invasive CVP measurement via catheterization is the gold standard but limited by invasiveness.
- A novel non-invasive technique, enclosed-zone (ezCVP) measurement, has been developed.
Purpose of the Study:
- To evaluate the feasibility of the ezCVP measurement technique.
- To determine the relationship between ezCVP and invasively measured CVP.
Main Methods:
- 291 measurements were performed on 97 patients.
- Linear regression and Bland-Altman analyses were used to compare ezCVP with invasive CVP.
- Receiver operating characteristic (ROC) curves were analyzed to assess diagnostic performance.
Main Results:
- ezCVP demonstrated a significant correlation with invasive CVP (r=0.65, P<0.0001).
- Bland-Altman analysis indicated an underestimation bias of -2.5 mmHg.
- ROC analysis showed areas under the curve of 0.81 and 0.88 for detecting specific CVP thresholds, with good sensitivity and specificity.
Conclusions:
- The ezCVP measurement technique is feasible for estimating CVP.
- ezCVP shows potential as a useful non-invasive tool for CVP assessment.
- This technique may offer a valuable alternative to invasive CVP monitoring.
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