Evaluating the Utility of Portal Vein Pulsatility Index for Detecting Fluid Unresponsiveness in the Intensive Care Unit

The primary aim of the authors’ study was to evaluate the capacity of the portal vein pulsatility index (PVP) to detect fluid unresponsiveness in patients admitted to intensive care. This was a retrospective, diagnostic accuracy study At a tertiary medical-surgical intensive care unit in Buenos Aire...

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Bibliographic Details
Published in:Journal of cardiothoracic and vascular anesthesia 2023-09, Vol.37 (9), p.1677-1682
Main Authors: Cheong, Issac, Amador, Elías Daniel Olarte, Gómez, Raúl Alejandro, Vilariño, Federico Matías Álvarez, Furche, Mariano Andrés, Tamagnone, Francisco Marcelo
Format: Article
Language:English
Subjects:
fluid responsiveness
Fluid Therapy
Humans
Intensive Care Units
POCUS
portal vein
Portal Vein - diagnostic imaging
Predictive Value of Tests
Retrospective Studies
ROC Curve
venous congestion
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Summary:The primary aim of the authors’ study was to evaluate the capacity of the portal vein pulsatility index (PVP) to detect fluid unresponsiveness in patients admitted to intensive care. This was a retrospective, diagnostic accuracy study At a tertiary medical-surgical intensive care unit in Buenos Aires, Argentina. Patients were included during usual care in the intensive care unit, who were evaluated by ultrasonography for the flow of the portal vein, calculating their PVP prior to fluid expansion. Patients who exhibited an increase of 32% predicted fluid unresponsiveness with a sensitivity of 30.8% (95% CI 17% to 47.6%) and specificity of 100% (95% CI 85.8 to 100). The positive predictive value was 100%, and the negative predictive value was 47.1% (95% CI 41.9% to 52.3%). Although PVP has limited value as the sole indicator for fluid management decisions, it can be used as a stopping rule or combined with other diagnostic tests to improve the accuracy of fluid responsiveness assessment.
ISSN:1053-0770
1532-8422
DOI:10.1053/j.jvca.2023.05.039