Endovascular Repair of a Complex Splenic Artery Aneurysm Using a Multilayer Stent

Müller–Eschner, Matthias; Kortes, Nikolas; Rehnitz, Christoph; Sumkauskaite, Migle; Rengier, Fabian; Böckler, Dittmar; Kauczor, Hans‐Ulrich; Radeleff, Boris

doi:10.1007/s00270-013-0788-7

Cited by 7 publications

(6 citation statements)

References 11 publications

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“…The concept of using a multilayer braid design was introduced to reduce porosity of the stent while maintaining the bending flexibility, which otherwise becomes too low in a high mesh density single layer stent to be able to conform well to the arterial wall. The use of multiple layer braided stent has been trialled in many clinical studies and is commercially available as CARDIATIS ® multilayer stent [ 101 , 102 , 103 ]. Another new design concept was reported recently which is a single layer braided structure but with two different zones/sections along its length [ 104 , 105 ].…”

Section: Textile Structures As Vascular Implantsmentioning

confidence: 99%

Medical Textiles as Vascular Implants and Their Success to Mimic Natural Arteries

Singh

Wong

Wang

2015

JFB

150

101

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Vascular implants belong to a specialised class of medical textiles. The basic purpose of a vascular implant (graft and stent) is to act as an artificial conduit or substitute for a diseased artery. However, the long-term healing function depends on its ability to mimic the mechanical and biological behaviour of the artery. This requires a thorough understanding of the structure and function of an artery, which can then be translated into a synthetic structure based on the capabilities of the manufacturing method utilised. Common textile manufacturing techniques, such as weaving, knitting, braiding, and electrospinning, are frequently used to design vascular implants for research and commercial purposes for the past decades. However, the ability to match attributes of a vascular substitute to those of a native artery still remains a challenge. The synthetic implants have been found to cause disturbance in biological, biomechanical, and hemodynamic parameters at the implant site, which has been widely attributed to their structural design. In this work, we reviewed the design aspect of textile vascular implants and compared them to the structure of a natural artery as a basis for assessing the level of success as an implant. The outcome of this work is expected to encourage future design strategies for developing improved long lasting vascular implants.

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Section: Textile Structures As Vascular Implantsmentioning

confidence: 99%

Medical Textiles as Vascular Implants and Their Success to Mimic Natural Arteries

Singh

Wong

Wang

2015

JFB

150

101

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“…Development of flow-diversion devices for treatment of aneurysm created a paradigm shift from traditional stent-grafts. Flow diversion concept of excluding aneurysm with a passive physical barrier has been successful in managing peripheral and visceral aneurysms (10)(11)(12)(13). Recently, the use of flow diversion stent device has been extended to treat complex aortic aneurysm with encouraging medium-term clinical outcomes (14-16).…”

Section: Introductionmentioning

confidence: 99%

Is Multiple Overlapping Uncovered Stents Technique Suitable for Aortic Aneurysm Repair?

Yeow

Leo

2017

Artificial Organs

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A computational fluid dynamic model to assess the impact of flow-diverter device on intra-aneurysmal flow in complex aortic aneurysm from the viewpoint of hemodynamics is presented. The aim of this study is to investigate the hemodynamic effects of an endovascular flow-diverter technique using multiple overlapping uncovered stents (MOUS) in the treatment of complex aortic aneurysm involving side branch. The placement of porous barrier such as MOUS across the aneurysm alters the blood flow pattern in the aneurysm sac. Subsequently, flow diversion effect creates a natural hemodynamic environment to promote aneurysm thrombosis, thus stabilizing the aneurysm. The study revealed that intra-aneurysmal flow was reduced and low time average wall shear stress (TAWSS), high relative residence time (RRT), and high oscillatory shear index (OSI) regions were observed in the aneurysm sac. Three to four MOUS stents produced the best hemodynamic environment for the formation of thrombus, with saccular aneurysm performing better than fusiform aneurysm from the viewpoint of hemodynamics. A result also revealed that flow in the branch vessel was not compromised suggesting the capacity of preserving patency of branch vessels while at the same time stabilizing the aneurysm. Based on the hemodynamic performance of this study coupled with existing reported clinical studies, deploying three to four MOUS stents is a feasible solution to treat aneurysm with side branch, favorably for saccular shape aneurysm.

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“…However, endovascular repair is not without its challenges. Cases of failed endovascular repair leading to complications like the Kasabach-Merritt phenomenon have been reported, underscoring the need for careful patient selection and technique refinement [ 8 ].…”

Section: Discussionmentioning

confidence: 99%

“…These stents have been employed in complex cases, offering a minimally invasive solution while ensuring the preservation of arterial flow [ 6 , 7 ]. The efficacy of such innovative approaches is well-documented, with studies reporting successful outcomes and minimal complications [ 8 ].…”

Section: Introductionmentioning

confidence: 99%

Endovascular Coil Embolization of a Large Ruptured Splenic Artery Aneurysm: A Case Report

Roditis,

Giannakopoulos,

Papaioannou

et al. 2024

Cureus

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This case report aims to elucidate the current practices and efficacy of endovascular repair in managing splenic artery aneurysms (SAAs), particularly focusing on a case of a large, partially ruptured SAA. A 66-year-old female presented with severe abdominal pain and was later diagnosed with a 53mm saccular, degenerative SAA showing signs of partial rupture. The patient underwent successful endovascular repair using a combination of interlocking detachable coils and fibered coils. Despite the initial success, a follow-up CT angiogram revealed residual issues, necessitating additional embolization. The patient recovered well, with subsequent follow-ups indicating complete aneurysm closure and no complications. The successful management of this case aligns with current trends in SAA treatment, emphasizing the shift towards endovascular repair methods. This approach, highlighted in the literature, offers a minimally invasive alternative to open surgery, with lower morbidity and mortality rates. This case underscores the importance of individualized treatment planning and vigilant follow-up, particularly in light of the potential need for secondary interventions. This report contributes to the growing body of evidence supporting endovascular repair as a safe and effective treatment for SAAs, advocating for continued research into long-term outcomes and the development of advanced endovascular technologies.

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Endovascular Repair of a Complex Splenic Artery Aneurysm Using a Multilayer Stent

Cited by 7 publications

References 11 publications

Medical Textiles as Vascular Implants and Their Success to Mimic Natural Arteries

Medical Textiles as Vascular Implants and Their Success to Mimic Natural Arteries

Is Multiple Overlapping Uncovered Stents Technique Suitable for Aortic Aneurysm Repair?

Endovascular Coil Embolization of a Large Ruptured Splenic Artery Aneurysm: A Case Report

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