This study states that Iliocaval stenting is becoming an increasingly prevalent modality in the treatment of chronic venous disease. Although there are numerous reports on the salutary benefits of venous stenting, these reports are mostly of early-stage outcomes, and studies regarding longer term clinical outcomes are scarce. This study aimed to identify and to assess these patients at 3, 4, and 5 years after initial stent placement.

We retrospectively reviewed our single-institution database of 466 patients who underwent iliocaval vein stenting for proximal venous outflow obstruction from January 2013 to August 2016. Follow-up times were determined from the last documented appointment in the patient’s electronic medical record. Long-term follow-up was defined as having at least 3 years of regularly scheduled appointments with the senior investigator. Clinical outcomes were measured using our group’s Clinical Assessment Score (CAS; worsened symptoms, −1; no change in symptoms, 0; minor improvement in symptoms, 1; significant improvement in symptoms, 2; complete resolution of symptoms, 3) at 30 days, 6 months, and 1 year and then at yearly intervals up to 5 years after the index procedure. Reinterventions were defined as return to the operating room for venography, intravascular ultrasound, deep venous thrombosis (DVT) treatment, balloon angioplasty, or additional stent placement.

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