F-55 | Gender-Based Outcomes Following Thoracic Endovascular Aortic Repair for Acute Complicated Type B Aortic Dissection: A Meta-Analysis

Background: May-Thurner Syndrome (MTS) is characterized by extrinsic venous compression by the arterial system in the ilio-caval territory leading to venous stasis, predisposition to deep vein thrombosis (DVT), and edema.We aimed to evaluate the safety and efficacy of endovascular management in symptomatic MTS patients.Methods: We included 20 MTS patients who underwent vascular interventional procedures between 2010-2023 at our tertiary care center.Data were extracted from EMR manually.The primary outcome was symptoms resolution, along with venous patency on follow up.Results: All patients had left-sided DVT with swelling and pain as predominant symptoms.Nearly half of the patients (45%) had predisposing factors for DVT.Intravascular ultrasound and CT venogram were the major imaging modalities used to confirm MTS and there were no intraprocedural complications.The Villalta score was 0, and the patency rate was 100% at a median follow-up of 255 days.Table 1 details the patients' demographics, comorbidities, endovascular treatment strategies, discharge therapies and outcomes.Conclusions: Our study demonstrates that endovascular interventions achieve excellent short-term outcomes, including high procedural success, substantial symptom resolution, and complete venous patency.These findings underscore the importance of timely diagnosis and appropriate management of symptomatic MTS to enhance patient outcomes and prevent recurrent deep vein thrombosis.