Changes in inferior vena cava area represent a more sensitive metric than changes in filling pressures during experimental manipulation of intravascular volume and tone. - Ivey‐Miranda, Juan B.; Wetterling, Friedrich; Gaul, Robert; Sheridan, Stephen; Asher, Jennifer L.; Rao, Veena S.; Maulion, Christopher; Mahoney, Devin; Mebazaa, Alexandre; Gray, Alastair P.; Burkhoff, Daniel; Cowie, Martin R.; et al. (European Journal of Heart Failure, 2022)