Has anyone tested the relationship between inferior vena cava diameter and fluid responsiveness (stroke volume variation) during abdominal surgery?

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Loreto de caro

How do you test VC diameter variations?

Enrico Giustiniano

Actually during liver resection we ask the surgeon to measure inferior cava vein diameter and its variation by intraoperative ultrasounds. We are trying to find a correlation between it and other volemia related parameters (cardiac index, central venous pressure, stroke volume variation, fluid balance)