A pulmonary embolism and deep vein thrombosis are the most common roads towards an IVC placement because they slow movement of blood through the veins. Recent surgery, stroke, extended travel and limited mobility, pregnancy, smoking, obesity and age are all contributing factors in needing an IVC filter.
It is often a last resort after some medication and/or activity changes. Most physicians are responsible enough to encourage non-invasive treatments before discussing this type of medical intervention – not just because of the long-term risks involved with any medical device placement, but also because of the immediate risks of any type of surgical procedure in the elderly or infirm.