Multilayer flow modulator stents in aortic aneurysms: an overview based on preliminary experience




Omer Tanyeli, Department of Cardiovascular Surgery, Meram Faculty of Medicine, Konya, Turkey
Sefer Kaya, Department of Cardiovascular Surgery, Tayfur Ata Sökmen Faculty of Medicine, Hatay Mustafa Kemal University, Hatay, Turkey
Metin O. Onur-Beyaz, Department of Cardiovascular Surgery, Tayfur Ata Sökmen Faculty of Medicine, Hatay Mustafa Kemal University, Hatay, Turkey
Íbrahim Demir, Department of Cardiovascular Surgery, Faculty of Medicine, Istanbul University, Istanbul. Turkey
Iyad Fansa, Department of Cardiovascular Surgery, Tayfur Ata Sökmen Faculty of Medicine, Hatay Mustafa Kemal University, Hatay, Turkey
Ahmet Kırbaş, Department of Cardiovascular Surgery, Health Science University Ümraniye Education and Research Hospital, İstanbul, Turkey
Niyazi Gormus, Department of Cardiovascular Surgery, Meram Faculty of Medicine, Konya, Turkey


Objective: Analyze the approach of the multilayer flow modulator (MFM) based on the results obtained in patients treated with Stena MFM® (S-MFM). Methods: It was evaluated 6-month follow-up outcomes of 12 patients (nine men and three females; mean age 60 years, range 34-79 years) underwent aneurysm repair with the S-MFM between July 2022 and December 2022. All patients undergoing S-MFM were patients at high risk of mortality and/or morbidity for open surgical repair and endovascular aneurysm repair , including thoracic Endovascular Aortic Repair (TEVAR) or fenestrated endovascular aortic repair (FEVAR). Results: The control angiograms confirmed successful patency in the lumen of the main aorta and the branches in all cases. Complete aneurysm thrombosis was detected in all patients on computed tomography angiography at 6-month follow-up. The technical success was 100%, and no case required immediate intervention. Significant complications, such as ruptures, stent migrations, retractions, thrombosis, fractures were not observed. Conclusions: The present data show the MFM approach may be an attractive alternative for complex aortic aneurysms. While it shrinks the aneurysm sac and protects the side branch blood flow, it reduces mortality and morbidity risks.



Keywords: Aortic aneurysm. Multilayer flow modulator. Peripheral arterial diseases.