Endovascular Chimney Technique for Juxtarenal Abdominal Aortic Aneurysm: A Systematic Review Using Pooled Analysis and Meta-Analysis

Li, Yue; Zhang, Tao; Guo, Wei; Chen, Duan; Ren, Wei; Ge, Yangyang; Jia, Xin; Li, Xiaoping

doi:10.1016/j.avsg.2015.02.015

Cited by 21 publications

(16 citation statements)

References 42 publications

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“…This indicates limited flow field changes due to CSGs, thus further supporting the predictability of the flow in the abdominal aorta following an implantation of two renal stent grafts. These findings reconcile with data indicating a relatively high success rate in ChEVAR procedures performed in recent years, evident both in short and long-term patient follow ups (Zhang et al, 2015).…”

Section: Flow Patternssupporting

confidence: 89%

Blood Flow in the Abdominal Aorta Post 'Chimney' Endovascular Aneurysm Repair

Gur¹,

Halak²,

Brand³

2018

Linköping Electronic Conference Proceedings

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Aortic aneurysms are a main death cause in the elderly population throughout the western world. In recent years, more aneurysm repairs are performed endovascularly using stent grafts (SGs) inserted into the aneurysm site through the arterial system (minimally invasive). In this study, we analyze the hemodynamics in an aneurysmatic abdominal aorta (AAA) endovascularly repaired by a stent graft (SG) system using the chimney technique. Computational fluid dynamics (CFD) is employed to study models of a healthy aorta versus an aorta post 'chimney' endovascular aneurysm repair (ChEVAR) using chimney stent grafts (CSG) inserted into each renal artery in parallel to the aortic SG. Results demonstrate that the presence of the CSGs results in stagnation regions and wall shear stress (WSS) modifications, yet the flow regime remains laminar. Thus, indicating the spatially contained effects of the ChEVAR technique and further supporting its merit.

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Section: Flow Patternssupporting

confidence: 89%

Blood Flow in the Abdominal Aorta Post 'Chimney' Endovascular Aneurysm Repair

Gur¹,

Halak²,

Brand³

2018

Linköping Electronic Conference Proceedings

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“…7 While the approach to RAA is not universally shared, because its treatment is strictly dependent on location and anatomical features, being controversial and technically challenging the endovascular repair of AAAs is widely described and considered feasible even in complex anatomies thanks to the development of advanced endovascular procedure such as parallel grafts. 8,9 In the case here presented, we have initially chosen a separate but simultaneous endovascular treatment of the two aneurysms, by means of EVAR for the AAA and multiple plug and coil embolizations to exclude the RAA. This strategy was Chimney technique has been successfully adopted for endovascular re-treatment because we considered it a feasible way to have more chances to reach a stable and long lasting system.…”

Section: Discussionmentioning

confidence: 99%

“…While the approach to RAA is not universally shared, because its treatment is strictly dependent on location and anatomical features, being controversial and technically challenging the endovascular repair of AAAs is widely described and considered feasible even in complex anatomies thanks to the development of advanced endovascular procedure such as parallel grafts. 8,9 In the case presented, we have initially chosen a separate but simultaneous…”

Section: Discussionmentioning

confidence: 99%

Concomitant Renal Artery and Aortic Aneurysm: Is Endovascular Surgery the Correct Approach?

Spampinato

Settembrini

Romagnoli

et al. 2019

Annals of Vascular Surgery

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Our case illustrates the concomitant presence of a giant aneurysm of the left renal artery at the ostium and an abdominal aortic aneurysm, in presence of a complex aortic anatomy. Type of approach and timing of the treatment is still not well established for the rare coexistence of these two pathologies. Endovascular therapy in case of surgical high risk patient is considered now the best choice to exclude arterial and aortic aneurysms even though the chance to do further interventions in the follow-up. For this reason we simultaneously treated both the aneurysms through an embolization with plugs and coils of renal aneurysm and endovascular exclusion of aortic aneurysm; in the follow-up renal function of the patient worsened until haemodialysis and we saw the reperfusion of renal aneurysm and the onset of endoleak I type A from above the aortic and renal aneurysm and B from iliac legs of the previous endograft. We performed a parallel graft technique on visceral vessels in order to exclude the refilling of both aneurysms and preserve visceral vascularization. Follow-up at 12 months showed the complete exclusion of the aneurysms and the patency of stents in celiac trunk and superior mesenteric artery.

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“…[110][111][112] On the contrary, the 30-day mortality and target vessel patency were 1 to 4% and 92 to 96%, respectively, with the snorkel EVAR. [113][114][115]…”

Section: Infrarenal Abdominal Aortic Aneurysmmentioning

confidence: 99%

Endovascular Treatment of Various Aortic Pathologies: Review of the Latest Data and Technologies

2018

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The technologies and innovations applicable to endovascular treatment for complex aortic pathologies have progressed rapidly over the last two decades. Although the initial outcomes of an endovascular aortic repair have been excellent, as long-term data became available, complications including endoleaks, endograft migration, and endograft infection have become apparent and are of concern. Previously, the indication for endovascular therapy was restricted to descending thoracic aortic aneurysms and abdominal aortic aneurysms. However, its indication has expanded along with the improvement of techniques and devices, and currently, it has become possible to treat pararenal aortic aneurysms and Crawford type 4 thoracoabdominal aortic aneurysm (TAAA) using the off-the-shelf devices. Additionally, custom-made devices allow for the treatment of arch or more extensive TAAAs. Endovascular treatment is applied not only to aneurysms but also to acute/chronic dissections. However, long-term outcomes are still unclear. This article provides an overview of available devices and the results of endovascular treatment for various aortic pathologies.

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Endovascular Chimney Technique for Juxtarenal Abdominal Aortic Aneurysm: A Systematic Review Using Pooled Analysis and Meta-Analysis

Cited by 21 publications

References 42 publications

Blood Flow in the Abdominal Aorta Post 'Chimney' Endovascular Aneurysm Repair

Blood Flow in the Abdominal Aorta Post 'Chimney' Endovascular Aneurysm Repair

Concomitant Renal Artery and Aortic Aneurysm: Is Endovascular Surgery the Correct Approach?

Endovascular Treatment of Various Aortic Pathologies: Review of the Latest Data and Technologies

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