One venous puncture, rather than two, is a safe and effective approach to intravascular ultrasound-guided inferior vena cava filter placement in critically-ill patients, a new study shows.

A new study shows that one venous puncture, rather than two, is a safe and effective approach to intravascular ultrasound-guided inferior vena cava filter placement in critically-ill patients.

In the 1980s cardiologists began using the size of the inferior vena cava (IVC) as seen on ultrasound (US) as a surrogate for the right sided filling pressures of the heart.