Filters used to block blood clots from passing to the lungs and creating a potentially life-threatening pulmonary embolism can save patient lives. Yet a trio of new studies suggests they don't reduce the risk of dying.
The vena cava filters may reduce the risk of mortality in patients considered "unstable" when they arrive at the hospital, however.
Always ask about the benefits and risks of potential therapies.
Paul Stein, MD, a lead...