“…3,[18][19][20] Pulmonary emboli also have resulted from clot forming on the cardiac side of the filter and breaking loose. 7 ' 815 This is more likely to happen if the filter is placed too far below the renal veins, creating a cul-de-sac between the filter and renal veins and thus setting up stasis and sub- Other complications that have occurred with the Mobin-Uddin filter have been: retroperitoneal hemorrhage; 7,16,17 perforation of the duodenum without abscess formation; 5,21 perforation of the right ureter; 5,6 distal migration after cardiac arrest; 22 misplacement into the suprarenal inferior vena cava and hepatic, renal, and iliac veins; 6,7,9,14,16 failure of insertion; 6,7 breakage; 23 sepsis; 7,17 and perinephric abscess. 17 The injuries of adjacent organs were secondary to perforation of the vena caval wall and surrounding tissue by the spokes.…”