Inferior vena cava (IVC) filter is an important therapeutic device used in the management of venous thrombo-embolism (VTE) in patients that are contra-indicated for anti-coagulation therapy. While there has been significant increase in the use of filters , unfortunately there are no standardized collection of data to track, compare outcomes, report safety and efficacy.

The registry is a multi-institutional bioinformatics database for the collection of data relevant to Inferior vena cava filters. Participating study centers may enroll patients and enter data in the web-based registry that include demographics, clinical features, management details and follow-up up to 48 months.

The purpose of this study is to improve our understanding of the retrieval rate, long term safety and efficacy on IVC filters placed in North America.

Inclusion Criteria:

• Data obtained in line with good clinical practice,applicable laws and regulation

No specific criteria. Data from anyone who underwent IVC Filter Placement/Retrieval will be eligible