scholarly journals Influence of endoleak positions on the pressure shielding ability of stent-graft after endovascular aneurysm repair (EVAR) of abdominal aortic aneurysm (AAA)

2016 ◽  
Vol 15 (S2) ◽  
Author(s):  
Jie Li ◽  
Xiaopeng Tian ◽  
Zhenze Wang ◽  
Jiang Xiong ◽  
Yubo Fan ◽  
...  
Keyword(s):  
Abdominal Aortic Aneurysm ◽  
Aortic Aneurysm ◽  
Stent Graft ◽  
Endovascular Aneurysm Repair ◽  
Abdominal Aortic ◽  
Aneurysm Repair

Fatal Complications of New-Onset Complicated Type B Aortic Dissection After Endovascular Abdominal Aortic Aneurysm Repair: Report of 2 Cases and Literature Review

2018 ◽  
Vol 53 (3) ◽  
pp. 255-258 ◽  
Author(s):  
Yoshikatsu Nomura ◽  
Kanetsugu Nagao ◽  
Shota Hasegawa ◽  
Motoharu Kawashima ◽  
Takanori Tsujimoto ◽  
...  
Keyword(s):  
Abdominal Aortic Aneurysm ◽  
Aortic Aneurysm ◽  
Aortic Dissection ◽  
Stent Graft ◽  
Endovascular Aneurysm Repair ◽  
Type B ◽  
Type B Aortic Dissection ◽  
Abdominal Aortic ◽  
Aneurysm Repair ◽  
New Onset

New-onset antegrade Stanford type B aortic dissection (TBAD) after endovascular aneurysm repair (EVAR) for abdominal aortic aneurysm (AAA) is rare. The extension of aortic dissection leads to various symptoms and affects the stent graft. Moreover, various symptoms may arise owing to a stent graft being present. We describe 2 cases of complicated acute TBAD occurring after EVAR, which were ultimately fatal. The case in which rupture occurred could not be treated and the patient died. In another case with bilateral lower extremity malperfusion caused by collapse and occlusion of the endograft, extra-anatomical bypass was performed. Although the collapsed endograft gradually re-expanded, the patient ultimately died because of multiorgan failure. We have reviewed the literature and analyzed the treatment of complicated TBAD after EVAR.

3D printing guiding stent graft fenestration: A novel technique for fenestration in endovascular aneurysm repair

Vascular ◽  
2016 ◽  
Vol 25 (4) ◽  
pp. 442-446 ◽  
Author(s):  
Jianhua Huang ◽  
Gan Li ◽  
Wei Wang ◽  
Keming Wu ◽  
Tianming Le
Keyword(s):  
Abdominal Aortic Aneurysm ◽  
3D Printing ◽  
Aortic Aneurysm ◽  
Stent Graft ◽  
Endovascular Aneurysm Repair ◽  
Novel Approach ◽  
Abdominal Aortic ◽  
Bilateral Renal Artery ◽  
Aneurysm Repair ◽  
Aneurysm Model

Objective To describe a novel approach, 3D printing guiding stent graft fenestration, for fenestration during endovascular aneurysm repair for juxtarenal abdominal aortic aneurysm. Methods A 69-year-old male with juxtarenal abdominal aortic aneurysm underwent endovascular aneurysm repair with “off the label” fenestrated stent graft. To precisely locate the fenestration position, we reconstructed a 3D digital abdominal aortic aneurysm model and created a skin template covering this abdominal aortic aneurysm model. Then the skin template was physically printed and the position of the visceral vessel was hollowed out, thereby helping in locating the fenestration on stent graft. Results and conclusions With the help of this 3D printed skin template, we fenestrated the stent graft accurately and rebuilt the bilateral renal artery successfully. This is the first clinical case that used 3D printing guiding stent graft fenestration, which is a novel approach for precise fenestration on stent graft on the table during endovascular aneurysm repair.

Affect of Abdominal Aortic Aneurysm Stent-Graft Design on Arterial Haemodynamics

2008 ◽  
Author(s):  
David S. Molony ◽  
Anthony Callanan ◽  
Barry J. Doyle ◽  
Liam G. Morris ◽  
Michael T. Walsh ◽  
...  
Keyword(s):  
Abdominal Aortic Aneurysm ◽  
Aortic Aneurysm ◽  
Stent Graft ◽  
Large Diameter ◽  
Endovascular Aneurysm Repair ◽  
Abdominal Aortic ◽  
Repair Procedure ◽  
Arterial Haemodynamics ◽  
Surgical Treatments ◽  
Aneurysm Repair

Abdominal Aortic Aneurysm is an irreversible dilation of the abdominal aorta. If left untreated the aneurysm may rupture possibly leading to death. There are currently two surgical treatments for AAA, the traditional open surgery and the minimally invasive repair also known as the endovascular aneurysm repair procedure (EVAR) [1–2]. The endovascular technique having been introduced in 1991 is still beset by problems [3]. These problems mainly consist of graft migration, endoleaks and occlusion. It has been suggested that redesigning current stent-graft devices is the best method of remedying these problems [4]. Conventional graft design has normally revolved around a constant proximal diameter which includes a sudden large diameter reduction at the iliac bifurcation. In the naturally occurring case the aorta tapers into the iliac arteries.

scholarly journals Stent graft in abdominal aortic aneurysm collapsed suddenly after thoracic endovascular aortic repair

2021 ◽  
Vol 14 (12) ◽  
pp. e246798
Author(s):  
Sho Takagi ◽  
Yoshihiro Goto ◽  
Junji Yanagisawa ◽  
Akio Nakasu
Keyword(s):  
Abdominal Aortic Aneurysm ◽  
Aortic Aneurysm ◽  
Stent Graft ◽  
Endovascular Aneurysm Repair ◽  
Rare Event ◽  
Thoracic Endovascular Aortic Repair ◽  
Endovascular Aortic Repair ◽  
Aortic Repair ◽  
Abdominal Aortic ◽  
Aneurysm Repair

Stent graft collapse due to aortic dissection is an extremely rare event. Although endovascular aneurysm repair (EVAR) and thoracic endovascular aortic repair (TEVAR) are increasingly being performed, various complications can occur. We report a case of collapse of a stent graft, which was used to repair an abdominal aortic aneurysm (AAA) after TEVAR for thoracic aortic aneurysm (TAA). A 72-year-old man with a 77 mm AAA and 60 mm TAA underwent EVAR and a TEVAR 2 months later, respectively. CT performed after the TEVAR showed thoracic aorta dissection with associated AAA stent graft collapse. The graft collapsed was due to superior mesenteric artery obstruction. An emergency TEVAR was performed, and the procedure improved the collapsed graft; however, the endoleak of the AAA stent graft persisted. The AAA expanded over several days, warranting an open repair. Our case provides an insight into the cautionary indications for endovascular therapy.

EVAR in Patients With Abdominal Aortic Aneurysm and Horseshoe Kidney: A Systematic Review

2021 ◽  
pp. 152660282110594
Author(s):  
Mauricio Gonzalez-Urquijo ◽  
Diana Paola Padilla-Armendariz ◽  
David Eugenio Hinojosa-Gonzalez ◽  
Gerardo Lozano-Balderas ◽  
Eduardo Flores-Villalba ◽  
...  
Keyword(s):  
Systematic Review ◽  
Abdominal Aortic Aneurysm ◽  
Aortic Aneurysm ◽  
Operative Time ◽  
Endovascular Aneurysm Repair ◽  
Horseshoe Kidney ◽  
Complication Rates ◽  
Abdominal Aortic ◽  
Endovascular Approach ◽  
Aneurysm Repair

Purpose: A systematic review of all patients that have been reported in the literature with abdominal aortic aneurysm (AAA) concomitant with horseshoe kidney (HSK) treated electively by endovascular aneurysm repair (EVAR) is presented. A new grouping system for describing HSK vasculature is implemented. Materials and Methods: We searched for published manuscripts using the Medical Subject Headings terms “abdominal aortic aneurysm,” “AAA,” “EVAR,” “endovascular aneurysm repair,” and “horseshoe kidney” in PubMed, Google Scholar, Scopus, and National Center for Biotechnology Information databases. Inclusion criteria include all published material of patients with AAA with HSK treated electively by an endovascular approach. We excluded patients who were treated by a hybrid or open repair or patients with ruptured AAA. Statistical analysis was carried out using SPSS Statistics version 25 (IBM Corp, Armonk, New York) software. Results: A total of 50 patients from 30 studies were included for analysis. Males made up 88% (n=44) of the population. The median age for this cohort was 70 years (range: 47–86 years). Median aneurysmal diameter was 6.0 cm (range: 4.0–10.3 cm). The median operative time for endovascular repair was 84 minutes (range: 40–332 minutes). The most common graft used was Zenith, used in 40% (n=20) of the cases, followed by Endurant in 14% (n=7). The overall complication rate was 14% (n=7). The median follow-up was 19 months (range: 1–108 months). While comorbidities did not appear to impact outcomes significantly, median operative times for smokers were higher than those in nonsmokers, 84 versus 118 minutes, respectively (p=0.048). Univariate linear regression modeling of aneurysmal size with age, operative time, and length of stay revealed a significant coefficient association between aneurysmal size and operative times. After adjusting for comorbidities and aneurysmal size, prior history of chronic kidney disease significantly increased odds for renal infarction. Conclusion: This review presents the most complete data set possible of patients with concomitant HSK and AAA treated by an endovascular approach. Furthermore, the A + B + C classification for grouping the HSK vasculature is implemented. This systematic review suggests EVAR to be an excellent option with low complication rates for the treatment of AAA in patients with HSK.

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