Table 3.

Filter retrieval rates, complications, and reasons for lack of retrieval.

Filters retrieved	72
Filters with pathology documented at retrieval	8 (11%)
Clotted filter	5
Infection related to retrieval procedure	1
Thrombus noted after retrieval	1
Broken struts	1
Filters not retrieved	107
Reported reasons for not retrieving filters
Progressive disease/clinical deterioration	55 (51%)
Continued inability to anticoagulated	25 (23%)
Lost to follow-up	8 (7%)
Inability to retrieve filter	5 (5%)
Recurrence with filter in place	4 (4%)
Concern for anticoagulation compliance	2 (2%)
Unknown	8 (7%)

Percentages for filters retrieved are out of 72 and percentages for filters not retrieved are out of 107.