Changes in the dimensions of the venae cavae.
D001790:Blood Physiological Phenomena; D001794:Blood Pressure / Q000502:physiology*; D001795:Blood Pressure Determination; D006801:Humans; D011312:Pressure; D014684:Venae Cavae / Q000502:physiology*
BLOOD PRESSURE/physiology; VENAE CAVAE/physiology