scholarly journals Single Centre Experience with Anaconda Custom-made Fenestrated Stent Graft in the Endovascular Repair of the Juxtarenal Aneurysms

2019 ◽  
Vol 13 (1) ◽  
pp. 31-36
Author(s):  
Milan Lisy ◽  
Guenay Kalender ◽  
Guido Rouhani ◽  
Matthias Schwarzbach ◽  
Wolf Stelter
Keyword(s):  
Stent Graft ◽  
Covered Stent ◽  
Aortic Aneurysms ◽  
Release Mechanism ◽  
Type I ◽  
Aortic Pathology ◽  
Single Centre Experience ◽  
Custom Made ◽  
Fenestrated Stent Graft ◽  
The Mean

Aim: The fenestrated Anaconda custom-made stent graft is one of the recently widely accepted fenestrated devices for managing complex juxta- and pararenal aortic pathology. This study showed its feasibility for treatment of challenging juxtarenal anatomy of the abdominal aorta. Methods: Over the period of 12 months, 9 patients with juxtarenal aortic aneurysm underwent fenestrated stent graft implantation in our institution. The graft fenestrations were customized on the basis of computerized tomography (CT-Angiography; CTA). Selected visceral ostia were protected with covered balloon-expandable stents after partial stent graft deployment. The perioperative and short term data were collected prospectively. Results: The mean aneurysm diameter was 58.4 mm (range 46-73 mm). The mean infrarenal neck length was 3.5 mm (range 0-7 mm), no patient had a severe (>60°) angulation of proximal neck. 18 fenestration for renal arteries, 1 for SMA and 3 for coeliac´s were treated with Advanta V12 covered stent. All the target vessels were cannulated successfully through fenestrations and all the stent grafts were successfully deployed in patients with no technical issue in the release mechanism. All the patients have undergone 6 month follow-up, no aneurysm related or aneurysm-unrelated deaths were reported. On the CTA scan, 3 of the patients had a weak type IIb endoleak; no type I or Type III endoleak was demonstrated. All target vessels were open without an instance of branch-stent stenosis/occlusion. No reintervention was needed. Conclusion: The usage of custom-made Anaconda fenestrated stent graft for endovascular treatment of juxtarenal aortic aneurysms is feasible with acceptable intermediate-term results.

Intraoperative Proximal Endoleaks during AAA Stent-Graft Repair: Evaluation of Risk Factors and Treatment with Palmaz Stents

2001 ◽  
Vol 8 (3) ◽  
pp. 268-273 ◽  
Author(s):  
Nuno V. Dias ◽  
Timothy Resch ◽  
Martin Malina ◽  
Bengt Lindblad ◽  
Krassi Ivancev
Keyword(s):  
Stent Graft ◽  
Therapeutic Option ◽  
Balloon Dilation ◽  
Aortic Aneurysms ◽  
Type I ◽  
Aneurysm Neck ◽  
Custom Made ◽  
Type I Endoleak ◽  
Stent Graft Repair ◽  
Palmaz Stents

Purpose: To study factors that might contribute to intraoperative proximal type I endoleak and to evaluate the placement of giant Palmaz stents as a therapeutic option. Methods: Thirty-three patients (30 men; median age 72 years, range 50–85) with abdominal aortic aneurysms underwent implantation of fully supported Gianturco Z-stent—based endografts (12 custom-made aortomonoiliac and 21 bifurcated Zenith devices). Ten (30%) patients were treated for intraoperative proximal endoleaks. Stent-graft oversizing and neck angulation, length, and shape were compared between patients with and without leaks. Results: In 9 cases, the endoleaks were successfully treated with intraoperative placement of Palmaz stents without complications. In 1 patient, a leak that was resolved intraoperatively with balloon dilation reappeared 1 month later; a Palmaz stent was deployed successfully. Stent-graft oversizing did not differ significantly between patients who developed proximal endoleaks and those who did not (median 4.0 mm in both groups, p = 0.47). Median neck length was 21.0 mm in patients with endoleak and 28.0 mm in those without (p > 0.99). Median neck angulation was 30° in both groups (p = 0.33), and the presence of a conical aneurysm neck was not significantly different (2/10 versus 6/23, p > 0.99). All aneurysms remained excluded at a median follow-up of 13 months (range 6–24). Conclusions: Stent-graft oversizing and neck morphology (length, angulation, and conical shape) do not seem to correlate with the incidence of proximal type I endoleaks. Palmaz stent placement appears to be a feasible and safe treatment option for this complication.

Homemade Fenestrated Stent-Grafts for Complete Endovascular Repair of Aortic Arch Dissections

2019 ◽  
Vol 26 (5) ◽  
pp. 645-651 ◽  
Author(s):  
Ludovic Canaud ◽  
Baris Ata Ozdemir ◽  
Lucien Chassin-Trubert ◽  
Julien Sfeir ◽  
Pierre Alric ◽  
...  
Keyword(s):  
Aortic Arch ◽  
Stent Graft ◽  
Endovascular Repair ◽  
Covered Stent ◽  
Type I ◽  
Type Ii ◽  
Stent Grafts ◽  
Fenestrated Stent Graft ◽  
Type I Endoleak

Purpose: To evaluate outcomes of homemade fenestrated stent-grafts for complete endovascular aortic repair of aortic arch dissections. Materials and Methods: From July 2014 through September 2018, 35 patients (mean age 66±11 years; 25 men) underwent homemade fenestrated stent-graft repair of acute (n=16) or chronic (n=10) complicated type B aortic dissections (n=16) and dissecting aortic arch aneurysms subsequent to surgical treatment of acute type A dissections (n=9). Nineteen (54%) procedures were emergent. Results: Zone 2 single-fenestrated stent-grafts were used in 25 cases; the remaining 10 were double-fenestrated stent-grafts deployed in zone 0. Median time for stent-graft modification was 18 minutes (range 16–20). Technical success was achieved in all cases. An immediate distal type I endoleak was treated intraoperatively. Among the double-fenestrated stent-graft cases, the left subclavian artery fenestration could not be cannulated in 2 patients and revascularization was required. Partial coverage of the left common carotid artery necessitated placement of a covered stent in 3 cases. One (3%) patient had a stroke without permanent sequelae. Two type II endoleaks required additional covered stent placement at 5 and 7 days postoperatively, respectively. The 30-day mortality was 6% (2 patients with ruptured aortic arch aneurysm). During a mean follow-up of 17.6±13 months, there was no aortic rupture or retrograde dissection. One late type I endoleak was treated with additional proximal fenestrated stent-graft placement. One type II endoleak is currently under observation. One additional patient died (unrelated to the aorta); overall mortality was 9%. All supra-aortic trunks were patent. Conclusion: The use of homemade fenestrated stent-grafts for endovascular repair of aortic arch dissections is feasible and effective for total endovascular aortic arch repair. Durability concerns will need to be assessed in additional studies with long-term follow-up.

CTA Assessment of Midterm Morphological Changes to Chimney Grafts Used in the Treatment of Juxtarenal Aortic Aneurysms

2019 ◽  
Vol 26 (5) ◽  
pp. 697-703 ◽  
Author(s):  
Suteekhanit Hahtapornsawan ◽  
Konstantinos Lazaridis ◽  
Frank J. Criado ◽  
Giovanni Federico Torsello ◽  
Theodosios Bisdas ◽  
...  
Keyword(s):  
Renal Artery ◽  
Stent Graft ◽  
Morphological Changes ◽  
Aortic Aneurysms ◽  
Clinical Consequence ◽  
Type I ◽  
Aortic Stent Graft ◽  
The Mean ◽  
The Right

Purpose: To evaluate chimney stent-graft position and morphological changes of the aneurysm sac as visualized by postoperative computed tomography angiography (CTA) over a minimum 24-month follow-up period. Materials and Methods: Twenty-one patients (mean age 75.7±8.6 years; 20 men) with juxtarenal aortic aneurysms who underwent successful chimney endovascular aneurysm repair (ch-EVAR) with the Endurant stent-graft and had 2 postoperative CTAs separated by at least 24 months were included in the study. CTA-based measurements of aortic stent-graft migration, target vessel angle, and chimney angle were compared between the serial scans. Results: During a mean follow-up of 34.9 months (range 24–69.2), the mean migration of the aortic stent-grafts was under 5 mm (2.76±2.4 mm). The average migration distance per year was 1.15 mm. The aneurysm diameter reduced a mean 3.25 mm (p=0.048). The right renal artery angle moved significantly upward 6.72° (p=0.025), while the right renal chimney stent-graft moved significantly downward 7.83° (p=0.042). The left renal artery angle also moved upward 1.87° (p=0.388) and the corresponding chimney moved downward 5.68° (p=0.133). During the study period, no type I/III endoleak or chimney occlusion was observed. Conclusion: Midterm morphometric assessment of ch-EVAR using CTA showed significant aneurysm sac shrinkage and a stable 3-year position of the abdominal devices, with the mean downward migration of the aortic stent-graft being <5 mm in the majority of cases. The chimney grafts seem to be prone to take an oblique rather than parallel configuration during follow-up. However, there was no relevant clinical consequence related to this phenomenon.

scholarly journals Technical approach and outcomes of failed infrarenal endovascular aneurysm repairs rescued with fenestrated and branched endografts

2019 ◽  
Vol 2 (1) ◽  
Author(s):  
Jesse Manunga ◽  
Larissa I. Stanberry ◽  
Peter Alden ◽  
Jason Alexander ◽  
Nedaa Skeik ◽  
...  
Keyword(s):  
Adverse Events ◽  
Stent Graft ◽  
Graft Patency ◽  
Hospital Length ◽  
Aortic Aneurysms ◽  
Hospital Length Of Stay ◽  
Type I ◽  
Technical Success ◽  
Vessel Patency ◽  
Major Adverse Events

Abstract Background Endovascular rescue of failed infrarenal repair (EVAR) has emerged as an attractive option to stent graft explantation. The procedure, however, is underutilized due to limited devices accessibility and the challenges associated with their implantation in this patient population. The purpose of this study was to report our outcomes and discuss our approach to rescuing previously failed infrarenal endovascular aneurysm repairs (EVAR) with fenestrated/branched endografts (f/b-EVAR). Methods A retrospective analysis of prospectively collected data of consecutive patients with failed EVAR rescued with f/b-EVAR at our institution from November 2013 to March 2019 was conducted. The study primary end point was technical success; defined as the implantation of the device with no type I a/b or type III endoleak or conversion to open repair. Secondary endpoints included major adverse events (MAEs), graft patency and reintervention rates. Results During this time, 202 patients with complex aortic aneurysms were treated with f/b-EVAR. Of these, 19 patients (Male: 17, mean age 79 ± 7 years) underwent repair for failed EVAR. The median time from failed repair to f/b-EVAR was 48 (30, 60) months. Treatment failure was attributed to stent graft migration in 9 (47.4%) patients, disease progression in 5 (26.3%), short initial neck in 3 (15.8%) and unable to be determined in 2 (10.5%). Three patients were treated urgently with surgeon modified stent graft. Technical success was achieved in 18 patients (95%), including two who had undergone emergent repair for rupture. Seventy-two targeted vessels (97.3%) were successfully incorporated. Sixteen (84.2%) patients required a thoracoabdominal repair to achieve a durable seal. Major adverse events (MAEs) occurred in 3 patients (15.7%) including paralysis and death in one (5.3%), compartment syndrome and temporary dialysis in another and laparotomy with snorkeling of one renal and bypass of the other in the third patient. Median (IQR) hospital length of stay was 3 (2, 4) days. Late reintervention, primary target vessel patency and primary assisted patency rates were 5.3%, 98.6% and 100%, respectively. Conclusion Implantation of f/b-EVAR in patients with failed previous EVAR is a challenging undertaking that can be performed safely with a high technical success and low reintervention rates.

Acute Type A Aortic Dissection Treated Using a Tubular Stent-Graft in the Ascending Aorta and a Multibranched Stent-Graft in the Aortic Arch

2016 ◽  
Vol 24 (1) ◽  
pp. 75-80 ◽  
Author(s):  
Tilo Kölbel ◽  
Christian Detter ◽  
Sebastian W. Carpenter ◽  
Fiona Rohlffs ◽  
Yskert von Kodolitsch ◽  
...  
Keyword(s):  
Aortic Dissection ◽  
Stent Graft ◽  
Open Surgery ◽  
Type A ◽  
Ascending Aorta ◽  
Type I ◽  
Acute Type ◽  
Stent Grafts ◽  
Type A Aortic Dissection ◽  
Custom Made

Purpose: To describe the combined use of a tubular stent-graft for the ascending aorta and an inner-branched arch stent-graft for patients with acute type A aortic dissection. Technique: The technique to deploy these modular, custom-made stent-grafts is demonstrated in 2 patients with acute DeBakey type I aortic dissections and significant comorbidities precluding open surgery. Both emergent procedures were made possible by the availability of suitable devices manufactured for elective repair in other patients. After preliminary carotid-subclavian bypass, a long Lunderquist guidewire was introduced from the right femoral artery to the left ventricle for delivery of the Zenith Ascend and Zenith Branched Arch Endovascular Grafts under inflow occlusion. Bridging stent-grafts were delivered to the innominate and left common carotid arteries to connect to the 2 inner branches; the left subclavian artery was occluded. Both cases were technically successful and resulted in exclusion of the false lumen in the ascending aorta. The operating and fluoroscopy times did not exceed those of comparable elective procedures. The patients were rapidly extubated shortly after the procedure and without serious immediate complications. One patient survived 11 months with a satisfactory repair; the other succumbed to complications of recurrent pneumonia after 23 days. Conclusion: Endovascular treatment of patients with acute type A aortic dissection using a combination of tubular and branched stent-grafts in the ascending aorta is feasible and offers an alternative strategy to open surgery.

scholarly journals E-nside Off-the-Shelf Inner Branch Stent Graft: Technical Aspects of Planning and Implantation

2021 ◽  
pp. 152660282110479
Author(s):  
Alexander Zimmermann ◽  
Anna-Leonie Menges ◽  
Zoran Rancic ◽  
Lorenz Meuli ◽  
Philip Dueppers ◽  
...  
Keyword(s):  
Radiation Dose ◽  
Stent Graft ◽  
Patient Selection ◽  
Endovascular Therapy ◽  
Aortic Aneurysms ◽  
Implantation Technique ◽  
Stent Grafts ◽  
Middle Segment ◽  
Technical Aspects ◽  
Fenestrated Stent Graft

Purpose This article aims to present all aspects regarding patient selection, planning, and implantation technique for a new off-the-shelf pre-cannulated multi-inner branch stent graft. The stent graft comes in 4 different versions with proximal diameters of 33 and 38 mm and distal diameters of 26 and 30 mm. The 4 inner branches are located in the middle segment, which has a diameter of 24 mm. Technique With inner branch technology, the field of application for the treatment of thoracoabdominal aortic aneurysms (TAAA) has been further extended. In addition to routine use in elective cases the pre-cannulation of the inner branches predisposes especially for emergencies. Pre-cannulation is intended to reduce the time to cannulation and the radiation dose. All steps of planning, stent-graft deployment, and cannulation of the inner branches are described in detail. Conclusion The E-nside stent graft represents a promising new endovascular therapy in the treatment of acute and elective TAAA. By using inner branch technology, this endograft combines the advantages of fenestrated and branched stent grafts. Indication, planning, and implantation require experience in branched and fenestrated stent graft technology.

Anatomical Suitability of the T-Branch Stent-Graft in Patients With Thoracoabdominal Aortic Aneurysms Treated Using Custom-Made Multibranched Endografts

2013 ◽  
Vol 20 (5) ◽  
pp. 672-677 ◽  
Author(s):  
Theodosios Bisdas ◽  
Konstantinos P. Donas ◽  
Michel Bosiers ◽  
Giovanni Torsello ◽  
Martin Austermann
Keyword(s):  
Stent Graft ◽  
Aortic Aneurysms ◽  
Custom Made

Anatomical Suitability of the Aortic Arch Arteries for a 3-Inner-Branch Arch Endograft

2020 ◽  
pp. 152660282095363
Author(s):  
Konstantinos Spanos ◽  
Stephan Haulon ◽  
Ahmed Eleshra ◽  
Fiona Rohlffs ◽  
Nikolaos Tsilimparis ◽  
...  
Keyword(s):  
Aortic Arch ◽  
Left Subclavian Artery ◽  
Innominate Artery ◽  
Exclusion Criterion ◽  
Type I ◽  
Sinotubular Junction ◽  
Landing Zone ◽  
Custom Made ◽  
The Mean ◽  
Aortic Arch Arteries

Purpose: To analyze aortic arch anatomy of patients who were already treated with a 2-inner-branch arch endograft (2-IBAE) in order to assess the anatomical suitability of the supra-aortic arteries as target vessels for a 3-IBAE. Materials and Methods: Three different configurations of the Cook Zenith Arch endograft were designed with distances of 110 mm (model 1), 90 mm (model 2), and 70 mm (model 3) between the orifices of the first and third inner branches. Preoperative measurements of the aortic arch anatomy from 104 consecutive patients treated electively with custom-made 2-IBAEs at 2 European centers between 2014 and 2019 were analyzed. A previously described standard methodology with a planning sheet was used. Data and measurements included the treatment indication for the aortic arch pathology, the type of landing zone, the type of arch, and the inner and outer lengths of the ascending aorta from the sinotubular junction to the innominate artery (IA). Additionally, the diameters and clock positions of the IA, left common carotid artery (LCCA), and left subclavian artery (LSA) were assessed, along with the distances between the IA and the LCCA, the IA and the LSA, and the distal landing zone. Results: Type I was the most common arch configuration (75/104, 72%). The mean clock positions were 12:30±00:28 for the IA, 12:00±00:23 for the LCCA, and 12:15±00:29 for the LSA. The mean diameters were 14.2±2.2 mm for the IA, 8.8±1.8 mm for the LCCA, and 10.5±2 mm for the LSA. The mean distances between the IA and LCCA and between the IA and LSA were 14.7±5.8 mm and 33±9.4 mm, respectively. Model 2 (branch distance 90 mm) had the highest suitability (79%), while models 1 and 3 showed suitability rates of 73% and 68%, respectively. The most frequent exclusion criterion in all models was the diameter of the LSA, followed by the IA to LSA distance. Conclusion: The suitability for a 3-IBAE among patients who had a 2-IBAE implanted is high, favoring a 90-mm distance between the retrograde LSA branch and baseline.

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