Transapical Access for Antegrade Catheterization of the Inner Branches of an Arch Stent-Graft Deployed Distal to an Ascending Arch Stent-Graft

2018 ◽  
Vol 25 (5) ◽  
pp. 542-546 ◽  
Author(s):  
Yuk Law ◽  
Tilo Kölbel ◽  
Johannes Schirmer ◽  
Shadi Aleed ◽  
John Mogensen ◽  
...  
Keyword(s):  
Stent Graft ◽  
Aortic Rupture ◽  
Past History ◽  
Type I ◽  
Stent Grafts ◽  
Landing Zone ◽  
Aortic Repair ◽  
History Of ◽  
Arch Aneurysm ◽  
Transapical Access

Propose: To describe a technique for antegrade cannulation and bridging of the supra-aortic branches through a transapical access in the treatment of an arch aneurysm using combined ascending and branched arch stent-grafts. Technique: An 81-year-old man with a past history of open infrarenal aortic repair, emergent endovascular aortic repair for thoracic aortic rupture, and later perivisceral 4-vessel branched endovascular repair of type I thoracoabdominal aneurysm presented for repair of a concomitant 7.5-cm arch aneurysm. Because of a 44-mm ascending aorta, a tapered 50/44-mm ascending stent-graft was delivered through a transapical access to establish an adequate landing zone before implantation of a 46-mm inner branched arch device via a transfemoral route. Innominate and left subclavian arteries were antegradely cannulated and bridged through the existing transapical path. Conclusion: Our case demonstrates the feasibility of transapical access for cannulation of an arch branched device, while introducing the theoretical possibility of completing the entire procedure through a transapical access.

Distribution of Air Embolization During TEVAR Depends on Landing Zone: Insights From a Pulsatile Flow Model

2019 ◽  
Vol 26 (4) ◽  
pp. 448-455 ◽  
Author(s):  
Vladimir Makaloski ◽  
Fiona Rohlffs ◽  
Constantin Trepte ◽  
E. Sebastian Debus ◽  
Bent Øhlenschlaeger ◽  
...  
Keyword(s):  
Stent Graft ◽  
Flow Model ◽  
Aortic Flow ◽  
Type I ◽  
Stent Grafts ◽  
Descending Aorta ◽  
Landing Zone ◽  
The Mean ◽  
The Right ◽  
Common Carotid Arteries

Purpose: To analyze the distribution of air bubbles in the supra-aortic vessels during thoracic stent-graft deployment in zones 2 and 3 in an aortic flow model. Materials and Methods: Ten identical, investigational, tubular, thoracic stent-grafts were deployed in a glass aortic flow model with a type I arch: 5 in zone 2 and 5 in zone 3. A pulsatile pump generated a flow of 5 L/min with systolic and diastolic pressures (±5%) of 105 and 70 mm Hg, respectively. The flow rates (±5%) were 300 mL/min in the subclavian arteries, 220 mL/min in the vertebral arteries, and 400 mL/min in the common carotid arteries (CCAs). The total amounts of air released in each supra-aortic branch and in the aorta were recorded. Results: The mean amounts of air measured were 0.82±0.23 mL in the zone-2 group and 0.94±0.28 mL in the zone-3 group (p=0.49). In the zone-2 group compared with zone 3, the amounts of released air were greater in the right subclavian artery (0.07±0.02 vs 0.02±0.02 mL, p<0.01) and right CCA (0.30±0.8 vs 0.18±07 mL, p=0.04). There were no differences between the groups concerning the mean amounts of air measured in the right vertebral and all left-side supra-aortic branches. The amount of air released in the descending aorta was significantly higher in the zone-3 group vs the zone-2 group (0.48±0.12 vs 0.13±0.08 mL, p<0.01). Small bubbles were observed continuously during deployment, whereas large bubbles appeared more commonly during deployment of the proximal stent-graft end and after proximal release of the stent-graft. Conclusion: Air is released into all supra-aortic branches and the descending aorta during deployment of tubular thoracic stent-grafts in zones 2 and 3 in an aortic flow model. Higher amounts of air were observed in right-side supra-aortic branches during deployment in zone 2, whereas significantly greater amounts of air were observed in the descending aorta during deployment in zone 3.

scholarly journals A Study on the Effects of Struts of Z-Shaped Stent-Grafts on Radial Forces

2017 ◽  
Author(s):  
Xuelian Gu ◽  
Kai Yu ◽  
Licheng Lu ◽  
Wenjing Tang
Keyword(s):  
Stent Graft ◽  
Endovascular Aneurysm Repair ◽  
Great Influence ◽  
Radial Force ◽  
Type I ◽  
Stent Grafts ◽  
Element Analysis ◽  
Landing Zone ◽  
Post Surgery ◽  
Aneurysm Repair

Endovascular aneurysm repair (EVAR) techniques have been widely used for the treatment of abdominal aortic aneurysm (AAA). EVAR is associated with lower postoperative morbidity and mortality than traditional surgical procedure to treat AAA [1]. However, during the patient’s follow-up, postoperative complications may occur and secondary interventions are required [2]. Stent-grafts fixation in the vessel affects the success of endovascular aneurysm repair. Researches indicate that insufficient stent-graft radial force is attributed to post-surgery complications, such as prosthesis migration and endoleak type I [3, 4]. Endoleak type I happens when there is not a complete contact between stent graft rings and vessel wall. A great radial force can prevent full obturation in the landing zone. The distal endograft fixation also has a great influence on proximal endograft migration after EVAR [5]. Therefore the radial force of the stent plays a significant role. Single stent-graft ring comprise a series of expandable Z-shaped structural elements (known as “struts”). Currently, there are series of Z-shaped stent-grafts on the market and the struts number ranges from 5 to 12. This work intends to analyze the influence of stent-graft struts number on the radial force. Finite-element analysis (FEA) and experimental method are used.

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.

Type IIIb Endoleak After Endovascular Aneurysm Repair Using the Zenith Stent Graft

2019 ◽  
Vol 53 (6) ◽  
pp. 515-519
Author(s):  
Toshiya Nishibe ◽  
Toru Iwahashi ◽  
Kentaro Kamiya ◽  
Masaki Kano ◽  
Keita Maruno ◽  
...  
Keyword(s):  
Stent Graft ◽  
Endovascular Aneurysm Repair ◽  
Aneurysm Rupture ◽  
Type I ◽  
Stent Grafts ◽  
System Type ◽  
Type Iiib ◽  
Type I Endoleak ◽  
Aneurysm Repair

We present 3 cases of type IIIb endoleak after endovascular aneurysm repair (EVAR) using the Zenith stent graft system. Type III endoleak, like type I endoleak, is a high-pressure, high-risk leak that increases sac pressure up to or even above arterial pressure, and is associated with an increased frequency of open conversions or risk of aneurysm rupture. Type IIIb endoleak is rare but there is much concern that the incidence of type IIIb endoleak is likely to increase hereafter; the mechanism of type IIIb endoleak is deterioration of graft fabric in conjunction with stent sutures. Type IIIb endoleak is difficult to diagnose before rupture. The possibility of type IIIb endoleak should be highly suspected when the continued growth of an excluded aneurysm sac without direct radiologic evidence is observed during follow-up. Type IIIb endoleak can be repaired by relining of the stent graft with additional stent grafts.

Novel Application of Custom-Made Stent Grafts with Inner Branches for Secondary Treatment After Stent Graft Migration of Previous Infrarenal Endovascular Aortic Repair

2020 ◽  
Vol 66 ◽  
pp. 665.e9-665.e15
Author(s):  
Mario D'Oria ◽  
Filippo Griselli ◽  
Davide Mastrorilli ◽  
Francesco Riccitelli ◽  
Filippo Gorgatti ◽  
...  
Keyword(s):  
Stent Graft ◽  
Endovascular Aortic Repair ◽  
Secondary Treatment ◽  
Stent Grafts ◽  
Aortic Repair ◽  
Custom Made ◽  
Graft Migration

A 3-Dimensional Printed Aortic Arch Template to Facilitate the Creation of Physician-Modified Stent-Grafts

2018 ◽  
Vol 25 (5) ◽  
pp. 554-558 ◽  
Author(s):  
Pawel Rynio ◽  
Arkadiusz Kazimierczak ◽  
Tomasz Jedrzejczak ◽  
Piotr Gutowski
Keyword(s):  
Aortic Arch ◽  
Stent Graft ◽  
Left Subclavian Artery ◽  
Thoracic Endovascular Aortic Repair ◽  
Stent Grafts ◽  
Landing Zone ◽  
3 Dimensional ◽  
Improve Accuracy ◽  
3D Printed ◽  
Radiopaque Markers

Purpose: To demonstrate the utility of a 3-dimensional (3D) printed template of the aortic arch in the construction of a fenestrated and scalloped physician-modified stent-graft (PMSG). Case Report: A 73-year-old woman with descending thoracic aneurysm was scheduled for thoracic endovascular aortic repair after being disqualified for open surgery. Computed tomography angiography (CTA) revealed no proximal landing zone as the aneurysm began from the level of the left subclavian artery, so a fenestrated/scalloped PMSG was planned. To facilitate accurate placement of the openings in the graft, a 3D printed aortic arch template was prepared from the CTA data and gas sterilized. In the operating room, a Valiant stent-graft was inserted into the 3D printed template and deployed. Using ophthalmic cautery, a fenestration and a scallop were created; radiopaque markers were added. The PMSG was successfully deployed with no discrepancy between the openings and the target vessels. Conclusion: A 3D printed aortic arch template facilitates handmade fenestrations and scallops in PMSGs and may improve accuracy and quality.

scholarly journals Antegrade transapical branch deployment for endovascular aortic-arch repair by in situ fenestration

2019 ◽  
Author(s):  
Takashi Murakami ◽  
Noriaki Kishimoto ◽  
Etsuji Sohgawa ◽  
Toshihiko Shibata
Keyword(s):  
Aortic Arch ◽  
Carotid Arteries ◽  
Stent Grafts ◽  
Descending Aorta ◽  
Bilateral Carotid ◽  
Aortic Arch Repair ◽  
Sheath Insertion ◽  
Arch Aneurysm ◽  
Transapical Access

Abstract A 76-year-old man presented with an aortic arch aneurysm and was considered a candidate for endovascular aortic arch repair by in situ fenestration. Alternative access routes were explored because of atherosclerotic disease of the descending aorta and bilateral carotid arteries. Transapical deployment of both an aortic and a branched stent grafts was successfully conducted without cerebral complications. The transapical access might have the potential to reduce the risks of complications related to large bore-sheath insertion to the carotid arteries.

Methods and clinical outcomes of in situ fenestration for aortic arch revascularization during thoracic endovascular aortic repair

Vascular ◽  
2020 ◽  
Vol 28 (4) ◽  
pp. 333-341 ◽  
Author(s):  
HL Li ◽  
YC Chan ◽  
HY Jia ◽  
SW Cheng
Keyword(s):  
Stent Graft ◽  
Thoracic Endovascular Aortic Repair ◽  
Endovascular Aortic Repair ◽  
Current Evidence ◽  
Type Ii ◽  
Technical Success ◽  
Landing Zone ◽  
Short Term Result ◽  
Aortic Repair

Objective Despite endovascular advances in fenestrated and branched devices, thoracic endovascular aortic repair (TEVAR) for arch pathologies remains challenging. The aim of this study was to provide a contemporary review on the current evidence for in situ fenestration during TEVAR and to evaluate its short- and mid-term clinical outcome in the management of arch pathology. Methods A systematic literature review on in situ fenestration of thoracic aortic stent-graft from January 2003 to September 2018 was performed under the instruction of Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) Statement. Results Our initial search yielded 169 studies, of which 21 articles were relevant to the topic and were finally included. One hundred and forty-five in situ fenestration procedures in 99 patients were reviewed, involving 25 innominate arteries (17%), 33 left common carotid arteries (23%) and 87 left subclavian arteries (60%). Twelve patients (12/99, 12%) had two-vessel fenestration and three-vessel fenestration was performed in 17 patients (17/99, 17%). Technical success was achieved in 136 arteries (136/145, 93%). Talent/Valiant with monofilament twill woven polyester fabric was the most common (50/99, 51%) stent-graft used for fenestration. Three methods reported for in situ fenestration were needle, laser and radiofrequency. Needle was the most frequently used device for fenestration, which was performed in 60 patients (60/99, 61%). Three patients (3/99, 3%) died with 30 days, none were in situ fenestration TEVAR procedure-related. Perioperative complications including one (1%) retrograde type A aortic dissection, two (2%) type II endoleaks, and three (3%) strokes were reported. The pooled estimate for overall technical success, perioperative mortality and stroke was 88.3% (95% CI, 78.6%–93.9%), 5.9% (95% CI, 2.5%–13.4%) and 9.5% (95% CI, 4.1%–20.6%), respectively. Four patients (4/96, 4%) died during follow-up, none were aortic-related. All the fenestration bridging stents were reportedly patent, with only 1 (1/96, 1%) asymptomatic left subclavian stent stenosis. Two patients (2/96, 2%) with type II endoleak from left subclavian artery required secondary intervention. Conclusion In situ fenestration appeared to be a feasible and effective method to extend proximal landing zone during TEVAR. It had an acceptable short-term result with high technical success and low fenestration related morbidity. Long-term durability data were lacking, and there was no high level evidence to recommend the routine use of in situ fenestration TEVAR for the management of arch pathology.

Endovascular treatment of isolated iliac artery aneurysms using a custom-made stent graft with proximal barb fixation: early outcome

Vascular ◽  
2013 ◽  
Vol 21 (2) ◽  
pp. 92-96 ◽  
Author(s):  
D L H Baird ◽  
K Mani ◽  
T Sabharwal ◽  
P R Taylor ◽  
H A Zayed
Keyword(s):  
Stent Graft ◽  
Iliac Artery ◽  
Perioperative Complications ◽  
External Iliac Artery ◽  
Stent Grafts ◽  
Landing Zone ◽  
Custom Made ◽  
Internal Iliac ◽  
The Mean ◽  
Isolated Iliac Artery Aneurysms

Current endovascular treatments for isolated iliac artery aneurysms (IIAAs) include the use of aortoiliac stent grafts with coverage of the distal aorta or stent grafts confined to the iliac artery without active proximal fixation. We report our experience in the use of custom-made Cook Zenith™ iliac limb stent grafts with proximal barb fixation. Patients treated from July 2009 to February 2011 were included. All imaging and patient records were assessed for perioperative and early outcomes. Nine IIAAs (seven patients) were treated. The mean patient age was 80 years (range 58-91 years). The mean aneurysm size was 48 mm (35-80 mm), and the mean length of the proximal landing zone (PLZ) was 29 mm (10-50 mm). The distal landing zone was in the external iliac artery after coil embolization of the internal iliac artery. The Mean diameter of the PLZ was 21 mm (20-24 mm). Technical success was achieved in eight cases. Perioperative complications included reoperation in one patient for groin bleeding and ischemia. On follow-up (mean 12 months, range 1-26), all aneurysms were successfully excluded from the circulation and there was no stent graft migration or thrombosis. Use of custom-made stent grafts with proximal barb fixation in treatment of IIAAs is a feasible option which may reduce the risk of migration when compared with stent grafts with lack of proximal fixation.

Results From a Nationwide Registry on Scalloped Thoracic Stent-Grafts for Short Landing Zones

2016 ◽  
Vol 24 (1) ◽  
pp. 97-106 ◽  
Author(s):  
Emma van der Weijde ◽  
Olaf J. Bakker ◽  
Ignace F. J. Tielliu ◽  
Clark J. Zeebregts ◽  
Robin H. Heijmen
Keyword(s):  
Stent Graft ◽  
Innominate Artery ◽  
Celiac Trunk ◽  
Stent Grafts ◽  
Conversion To Open Surgery ◽  
Landing Zone ◽  
Early Results ◽  
Aortic Pathology ◽  
Custom Made

Purpose: To report the perioperative results and short-term follow-up of patients treated with scalloped thoracic stent-grafts. Methods: A multicenter registry in the Netherlands captured data on 30 patients (mean age 68 years; 17 men) with thoracic aortic pathology and a short (<20 mm) proximal or distal landing zone who received a custom-made scalloped stent-graft between January 2013 and February 2016. Patients were treated for saccular (n=13) aneurysms, fusiform (n=9) aneurysms, pseudoaneurysms (n=4), or chronic type B dissections (n=4). The scallop was used to preserve flow in the left subclavian artery (LSA) (n=17), left common carotid artery (n=5), innominate artery (n=1), and celiac trunk (n=7). In 7 (23%) patients, the scallop also included the adjacent artery. Results: Technical success was achieved in 28 (93%) patients. In 1 patient, a minor type Ia endoleak was observed intraoperatively, which was no longer visible on computed tomography angiography at 3 months. In another patient, the LSA was unintentionally obstructed due to migration of the stent-graft on deployment. Concomitant carotid-carotid or carotid-subclavian bypass was performed in 4 patients. There was no retrograde type A dissection or conversion to open surgery. In-hospital mortality was 3%, and the perioperative ischemic stroke rate was 3%. At a mean follow-up of 9.7 months (range <1 to 31), 29 of 30 target vessels were patent. Conclusion: The scalloped stent-graft appears to be a safe and relatively simple alternative for the treatment of thoracic aortic lesions with short landing zones. Larger patient series and long-term follow-up are required to confirm these early results.

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