A ten year follow-up study of the Mobin-Uddin filter for vena cava interruption.

Forty-seven Mobin-Uddin interruption filters were successfully placed and observed for an average of four years. One patient had a recurrent nonfatal pulmonary embolus. One patient died as a direct result of filter placement, secondary to retroperitoneal hemorrhage. Postoperative venous sequellae were evident in 17 of 33 patients observed for long term follow-up study, eight of whom required symptomatic therapy. Ultimate venous sequellae correlate primarily with preoperative venous conditions.