Tessa A. Mulder MD , Linda Becude MD , Jorge E. Lopez Matta MD , Wilbert B. van den Hout PhD , David J. van Westerloo MD, PhD , Martijn P. Bauer MD, PhD
{"title":"The SONIC CENTRAL Study","authors":"Tessa A. Mulder MD , Linda Becude MD , Jorge E. Lopez Matta MD , Wilbert B. van den Hout PhD , David J. van Westerloo MD, PhD , Martijn P. Bauer MD, PhD","doi":"10.1016/j.chstcc.2024.100091","DOIUrl":null,"url":null,"abstract":"<div><h3>Background</h3><div>Estimating central venous pressure (CVP) is essential in the diagnostic evaluation and treatment guidance of most hospitalized patients. It is unknown how different noninvasive bedside methods to estimate CVP correlate with each other and which method has the best accuracy.</div></div><div><h3>Research Question</h3><div>Which noninvasive bedside method to estimate CVP has the best accuracy to detect elevated CVP?</div></div><div><h3>Study Design and Methods</h3><div>During this prospective, single-center, observational study, we included patients admitted to the ward or ICU who already had an indwelling central venous catheter and who did not undergo positive pressure ventilation. We measured height of the fluid column in the external jugular vein (EJV) according to the Lewis and Borst method (EJV height), maximum and minimum diameters and height of the fluid column of the internal jugular vein (IJV; IJV height) using ultrasound, and diameters of the inferior vena cava (IVC) throughout a respiratory cycle and sniffing. We then compared these measurements with intravenously measured CVP.</div></div><div><h3>Results</h3><div>Ninety patients were included. Twenty-seven patients (30%) showed CVP of ≥ 10 mm Hg. All measurements had a significant correlation with CVP, except for the diameter of the IJV. Areas under the receiver operating characteristic curve for IJV height, EJV height, maximum diameter, and collapsibility on inspiration of the IVC were 0.85, 0.80, 0.78, and 0.76 respectively. The interobserver agreement was good to excellent. We estimated continuous likelihood ratios for the measurements to aid clinical decision-making.</div></div><div><h3>Interpretation</h3><div>Our results indicated that EJV height, IJV height, IVC diameter, and IVC collapsibility can be used to identify an elevated CVP in hospitalized patients. Among these, ultrasonographic estimation of the height of the fluid column in the IJV is quick and easy and allows identification of an elevated CVP with the best reproducibility and accuracy.</div></div><div><h3>Clinical Trial Registration</h3><div>National Trial Register; ID: NL-OMON22937; URL: <span><span>https://onderzoekmetmensen.nl/en/trial/22937</span><svg><path></path></svg></span></div></div>","PeriodicalId":93934,"journal":{"name":"CHEST critical care","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2024-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"CHEST critical care","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2949788424000455","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
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Abstract
Background
Estimating central venous pressure (CVP) is essential in the diagnostic evaluation and treatment guidance of most hospitalized patients. It is unknown how different noninvasive bedside methods to estimate CVP correlate with each other and which method has the best accuracy.
Research Question
Which noninvasive bedside method to estimate CVP has the best accuracy to detect elevated CVP?
Study Design and Methods
During this prospective, single-center, observational study, we included patients admitted to the ward or ICU who already had an indwelling central venous catheter and who did not undergo positive pressure ventilation. We measured height of the fluid column in the external jugular vein (EJV) according to the Lewis and Borst method (EJV height), maximum and minimum diameters and height of the fluid column of the internal jugular vein (IJV; IJV height) using ultrasound, and diameters of the inferior vena cava (IVC) throughout a respiratory cycle and sniffing. We then compared these measurements with intravenously measured CVP.
Results
Ninety patients were included. Twenty-seven patients (30%) showed CVP of ≥ 10 mm Hg. All measurements had a significant correlation with CVP, except for the diameter of the IJV. Areas under the receiver operating characteristic curve for IJV height, EJV height, maximum diameter, and collapsibility on inspiration of the IVC were 0.85, 0.80, 0.78, and 0.76 respectively. The interobserver agreement was good to excellent. We estimated continuous likelihood ratios for the measurements to aid clinical decision-making.
Interpretation
Our results indicated that EJV height, IJV height, IVC diameter, and IVC collapsibility can be used to identify an elevated CVP in hospitalized patients. Among these, ultrasonographic estimation of the height of the fluid column in the IJV is quick and easy and allows identification of an elevated CVP with the best reproducibility and accuracy.
Clinical Trial Registration
National Trial Register; ID: NL-OMON22937; URL: https://onderzoekmetmensen.nl/en/trial/22937
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