Sinai Vein Stent Registry

The Sinai Vein Stent Registry aims to establish and maintain a registry of patients who have undergone a vein stent placement procedure at The Mount Sinai Medical Center. The purpose of this study is to monitor and evaluate the long-term outcomes of venous stents placed to treat venous outflow obstruction. Outcome variables that will be assessed are: patency rate, reintervention rate, occurrence of any complications, clinical improvement, and quality of life. Venous outflow obstruction is defined as a stenosis and/or occlusion seen primarily in the ilio-femoral vein and inferior vena cava, and infrequently in the subclavian vein, brachiocephalic vein, or superior vena cava. While vein stent placement procedures are currently being performed in the United States, using stents which are commercially available and FDA-approved for use in arterial interventions, at this time there are no stents that are FDA-approved for use in veins. The placement of stents in veins holds tremendous promise as a treatment for venous outflow obstruction, but review of current literature has showed a paucity of published data on the long-term outcomes of this treatment. The study is composed of two arms, a retrospective arm and a prospective arm. Any patient over the age of 18 who has undergone or is scheduled to undergo a vein stent placement procedure is eligible for this study. A HIPAA waiver and waiver of informed consent are being requested for the retrospective arm for patients who have undergone a vein stent placement procedure from January 1st 2012 to date of study onset, as it is not possible to contact all patients in the retrospective arm (i.e., lost to follow-up, no longer follows-up with a study physician). This study is only interested in the collection and analysis of data; the clinical care and outcomes of research subjects will not be affected by their participation in this study. An IDE application has been submitted to the FDA for use of the Wallstent™ (manufactured b