Evidence of use of multilayer flow modulator stents in treatment of thoracoabdominal aortic aneurysms and dissections

Oderich, Gustavo S.

doi:10.1016/j.jvs.2016.12.092

Cited by 24 publications

(19 citation statements)

References 38 publications

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“…On the other hand, multilayer flow‐diverting stents represent a new concept of aneurysm exclusion with reconstruction of the parent vessel. The stagnant blood flow within the aneurysm sac leads to thrombosis and perfusion is maintained to the side branches of the parent vessel . In emergent cases, these stents are available off‐the‐shelf in a wide range of sizes without the need for customization …”

Section: Endovascular Aneurysm Repair Techniquesmentioning

confidence: 99%

“…The stagnant blood flow within the aneurysm sac leads to thrombosis and perfusion is maintained to the side branches of the parent vessel. 40 In emergent cases, these stents are available off-theshelf in a wide range of sizes without the need for customization. 41 While vessel embolization is the treatment of choice for persistent Type II endoleaks, 48 excellent results have also been reported with translumbar aneurysmal sac embolization and obliteration (fluoroscopic-guided percutaneous access to the aneurysmal sac and injection of glue, coil, or thrombin).…”

Section: Snorkel/chimney Techniquementioning

confidence: 99%

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Percutaneous endovascular abdominal aneurysm repair: State‐of‐the art

Jabbar

Chanda

White

et al. 2019

Cathet Cardio Intervent

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Endovascular repair of abdominal aortic aneurysms emerged initially as an alternative treatment strategy for patients considered to be inoperable or high risk for surgery. The evolution of endovascular techniques has made this technology a safe and less invasive alternative to open surgery for patients with suitable aortic anatomy. This manuscript reviews the current state of the art for endovascular AAA repair techniques, clinical outcomes, guideline recommendations, and future applications.

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Section: Endovascular Aneurysm Repair Techniquesmentioning

confidence: 99%

Section: Snorkel/chimney Techniquementioning

confidence: 99%

Percutaneous endovascular abdominal aneurysm repair: State‐of‐the art

Jabbar

Chanda

White

et al. 2019

Cathet Cardio Intervent

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“…It has a 3D design and consists of a wire-mesh with interconnected layers, which can expand spontaneously. 1 It is made of a cobalt/chrome alloy (Phynox). It can be used in the endovascular repair of all aneurysms with any dimension and diameter.…”

Section: Introductionmentioning

confidence: 99%

Results of a three-year follow-up after endovascular therapy with multilayer flow modulator in complex thoracoabdominal aortic aneurysm: A case report

Kankılıç

Aydın

2020

Vascular

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Objectives Studies on the short-, medium and long-term effects of flow guiding stents are still limited. In this case report, we present three-year follow-up of the multilayer flow modulator stent in a 55-year-old patient with Crawford Type 2 thoracoabdominal aortic aneurysm. Methods A 55-year-old male patient with Crawford Type 2 thoracoabdominal aortic aneurysm had applied to our medical center. The aneurysm involved coeliac truncus and superior mesenteric artery and extended to the renal artery ostia. Multilayer flow modulator stent was successfully placed, and follow-up CT (Computed tomography) angiographic examination images recorded intermittently (36 months). Results After three years, it was observed that the left renal artery was thrombosed and the left kidney went to atrophy. Other major vascular branches were observed to be open. During this time, the aneurysm was completely closed with thrombus, but the diameter of the aneurysm continued to increase. Conclusions Multilayer flow modulator stents are safe in complex aortic aneurysms. The device increases the thrombus load in the aortic aneurysm and maintains the flow of the main vascular branches. But re-interventions, dilatation of the aneurysm sac and visceral branch obstructions are still challenging for multilayer flow modulator stents.

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“…The concept of flow diversion involves a commercial multilayer MFM stent that has been used to treat TAD in situations where the patients were not suitable for standard endovascular repair . Unlike a conventional stent graft, flow diversion acts as a passive barrier by reducing blood flow into the false lumen and subsequently creates a natural hemodynamic environment to promote false lumen thrombosis, which is conducive for the activation and aggregation of platelets within the false lumen . Moreover, the stent can fully maintain the patency of important branch vessels and avoids organ ischemic infarction and spinal ischemia.…”

Section: Introductionmentioning

confidence: 99%

“…6 Unlike a conventional stent graft, flow diversion acts as a passive barrier by reducing blood flow into the false lumen and subsequently creates a natural hemodynamic environment to promote false lumen thrombosis, which is conducive for the activation and aggregation of platelets within the false lumen. 7,8 Moreover, the stent can fully maintain the patency of important branch vessels and avoids organ ischemic infarction and spinal ischemia. The purpose of the current study was to analyze midterm follow-up outcomes in 26 patients who were treated for DeBakey type I and type III TAD using MSG.…”

mentioning

confidence: 99%

Endovascular repair during complex thoracic aortic dissection using a micropore stent graft: Midterm follow‐up clinical outcomes

Wang

et al. 2019

Cathet Cardio Intervent

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Objective This study explored the clinical efficacy and hemodynamic effects of the micropore stent graft (MSG) that could promote aortic remodeling and preserve important organ branches. Methods We conducted a retrospective analysis of 26 patients who underwent endovascular repair using an MSG for DeBakey types I and III TAD at our center between December 2014 and December 2017. The main efficacy parameters were rupture of the false lumen or dissection‐related death, conversion to open repair, secondary reintervention, branch vessel patency, and the hemodynamic effects of TAD at 12 months. Results Dissection rupture, dissection‐related mortality, conversion to open repair, and secondary reintervention rates at 12 months were 0, 3.9, 0, and 0%, respectively. In the 24 patients with more than 6 months of follow‐up, micropore stents were implanted to cover 39 openings in aortic arch branches, 91.7% (22/24) presented with complete thrombosis in the false lumen, 8.3% (2/24) presented with partial thrombosis in the false lumen, 35.2% (6/17) presented with a thrombus in the false lumen that was completely absorbed, and all 39 branches were patent. After surgery, pressure peak value and fluctuation along with the degree and range of unstable blood flow in the aortic lumen decreased. Conclusions For type I and type III thoracic artic dissection, endovascular treatment with an MSG may be a safe and effective treatment option with a good midterm outcome.

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Evidence of use of multilayer flow modulator stents in treatment of thoracoabdominal aortic aneurysms and dissections

Cited by 24 publications

References 38 publications

Percutaneous endovascular abdominal aneurysm repair: State‐of‐the art

Percutaneous endovascular abdominal aneurysm repair: State‐of‐the art

Results of a three-year follow-up after endovascular therapy with multilayer flow modulator in complex thoracoabdominal aortic aneurysm: A case report

Endovascular repair during complex thoracic aortic dissection using a micropore stent graft: Midterm follow‐up clinical outcomes

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