Scientific Session 3: Iliac Stenting, IVUS and DVT Outcomes

Iliofemoral Stenting and Stent Anticoagulation

Matthew Bergamo found iliofemoral stenting resolved deep vein reflux in a third of patients who had it beforehand without inducing new reflux in most others, while Peter Pappas found anticoagulation did not improve nonthrombotic stent patency, with thrombus layering traced to stent oversizing rather than clotting risk.

Rethinking the 50 Percent Stenosis Criterion

Arjun Jayaraj’s 480 patient study found the arterial derived 50 percent stenosis threshold did not predict baseline severity, clinical improvement, quality of life gains, patency, or reintervention after stenting, suggesting symptomatic patients merit treatment even below that threshold.

Sex Differences in Long-Term DVT Outcomes

A review of 1043 patients found men more often received catheter directed thrombolysis while women more often received systemic thrombolysis, and despite similar disease severity, women experienced higher VTE related mortality and more bleeding over two years of follow up.

Stent Histopathology and Intraoperative IVUS

A histopathology study of 254 vein stents found organizing thrombus evolving into diffuse intimal thickening over time, while a review of 172 limbs found adjunct IVUS reduced 30 day and two year stent failure versus venography alone.