Partially Covered Stent-Graft Implantation in Rabbit Aorta: A New Model to Investigate Bioactive Stent-Grafts in Small Animals

2009 ◽  
Vol 16 (2) ◽  
pp. 154-160 ◽  
Author(s):  
Hongshan Zhong ◽  
Osamu Matsui ◽  
Ke Xu ◽  
Takahiro Ogi ◽  
Miho Okuda ◽  
...  
Keyword(s):  
Stent Graft ◽  
Rabbit Aorta ◽  
Covered Stent ◽  
Small Animals ◽  
Stent Grafts ◽  
New Model ◽  
Covered Stent Graft ◽  
Stent Graft Implantation ◽  
Graft Implantation ◽  
Bioactive Stent

scholarly journals Endovascular Aneurysm Sealing of a Collapsed and Thrombosed Aortic Stent-Graft With Renovisceral Chimney Stent-Grafts

2018 ◽  
Vol 26 (1) ◽  
pp. 72-75
Author(s):  
Fabien Lareyre ◽  
Claude Mialhe ◽  
Carine Dommerc ◽  
Juliette Raffort
Keyword(s):  
Stent Graft ◽  
Mesenteric Artery ◽  
Endovascular Aneurysm Repair ◽  
Stent Grafts ◽  
Aortic Thrombosis ◽  
Aortic Stent Graft ◽  
Aneurysm Repair ◽  
Stent Graft Implantation ◽  
Graft Implantation

Purpose: To report the use of the Nellix endovascular aneurysm sealing (EVAS) system in the management of proximal stent-graft collapse associated with thrombosis following endovascular aneurysm repair (EVAR). Case Report: A 76-year-old man was admitted for proximal collapse of an aortic extension following bifurcated AFX stent-graft implantation associated with chimney grafts in both renal arteries and the superior mesenteric artery 1 month prior. Imaging identified thrombosis of the aortic stent-graft and the iliac limbs. A Nellix EVAS was placed into the AFX stent-graft to recanalize the aneurysm lumen and address the aortic thrombosis. There was no endoleak, and the renovisceral chimney stent-grafts remained patent over a follow-up of 25 months. Conclusion: While further studies are required to generalize its use, EVAS appears to be feasible in the management of aortic stent-graft collapse.

Application of covered stent grafts for intracranial vertebral artery dissecting aneurysms

2009 ◽  
Vol 110 (3) ◽  
pp. 418-426 ◽  
Author(s):  
Min He ◽  
Heng Zhang ◽  
Ding Lei ◽  
Bo-Yong Mao ◽  
Chao You ◽  
...  
Keyword(s):  
Vertebral Artery ◽  
Stent Graft ◽  
Posterior Inferior Cerebellar Artery ◽  
Covered Stent ◽  
Stent Grafts ◽  
Graft Placement ◽  
Cerebellar Artery ◽  
Covered Stent Graft ◽  
Dissecting Aneurysms

Object Utilization of covered stent grafts in treating neurovascular disorders has been reported, but their efficacy and safety in vertebral artery (VA) dissecting aneurysms needs further investigation. Methods Six cases are presented involving VA dissecting aneurysms that were treated by positioning a covered stent graft. Two aneurysms were located distal to the posterior inferior cerebellar artery, and 4 were located proximal to the posterior inferior cerebellar artery. Aspirin as well as ticlopidine or clopidogrel were administered after the procedure to prevent stent-related thrombosis. All patients were followed up both angiographically and clinically. Results Five of the 6 patients underwent successful placement of a covered stent graft. The covered stent could not reach the level of the aneurysm in 1 patient with serious vasospasm who died secondary to severe subarachnoid hemorrhage that occurred 3 days later. Patient follow-up ranged from 6 to 14 months (mean 10.4 months), and demonstrated complete stabilization of the obliterated aneurysms, and no obvious intimal hyperplasia. No procedure-related complications such as stenosis or embolization occurred in the 5 patients with successful stent graft placement. Conclusions Although long-term follow-up studies using a greater number of patients is required for further validation of this technique, this preliminary assessment shows that covered stent graft placement is an efficient, safe, and microinvasive technique, and is a promising tool in treating intracranial VA dissecting aneurysms.

Endovascular treatment of extracranial carotid artery aneurysms using self-expandable covered stent grafts: A single center retrospective study

Vascular ◽  
2021 ◽  
pp. 170853812199012
Author(s):  
Peixian Gao ◽  
Jiaxin Qi ◽  
Mo Wang ◽  
Gang Li ◽  
Le Yang ◽  
...  
Keyword(s):  
Carotid Artery ◽  
Endovascular Treatment ◽  
Stent Graft ◽  
Common Carotid Artery ◽  
Covered Stent ◽  
Imaging Features ◽  
Stent Grafts ◽  
Extracranial Carotid Artery ◽  
Covered Stent Graft

Objectives This study was aimed to evaluate the safety and efficacy of endovascular treatment of extracranial carotid artery aneurysms (ECAAs) using self-expandable covered stent grafts. Methods All patients with ECAA at a single institution were reviewed from February 2014 to February 2020. Eight consecutive patients (three men, mean age 64.5 years) treated with endovascular repair with self-expandable covered stent graft were retrospectively reviewed. Patient characteristics, angiographic results, and follow-up outcomes were retrospectively recorded. Access to ECAA was gained via a femoral approach or a direct puncture of common carotid artery after surgical exposure because of kinking of the aortic arch and common carotid artery. A self-expandable covered stent graft (Viabahn; W. L. Gore, Flagstaff, AZ) was deployed to exclude the aneurysm. Results Based on imaging features, there were five peudoaneurysms and three true aneurysms. The technical success rate was 100%. Cerebral protection devices were not used in all the patients during the procedures. Immediate absolute obliteration of the ECAA with no endoleak was documented in all the patients. Perioperative complications included one internal carotid-cavernous sinus fistula, one bleeding at the puncture site, and one stroke. The mean follow-up period was 35.5 months (range, 9–72 months). All the patients were alive, with an obligation rate of 100%. No transient ischemia attack, stroke, or reoccurrence of symptoms was identified during the follow-up period. Radiological examinations identified patency of the stent grafts and revealed no endoleaks, stent fracture, stent migration, or aneurysm rupture. Conclusions Endovascular treatment of ECAAs with self-expandable covered stent grafts appears to be a safe and feasible alternative for traditional open surgery, especially in the challenging anatomy and instable physical conditions. Although cerebrovascular accidents can occur as the result of hemodynamic changes during the perioperative period, the minimal alternative can yield satisfactory midterm follow-up clinical outcomes.

scholarly journals Rare case of isolated true aneurysm in the superficial femoral artery treated with endovascular intervention: a case report

2020 ◽  
Vol 4 (1) ◽  
pp. 1-4 ◽  
Author(s):  
Seyong Chung ◽  
Ji-Yong Jang ◽  
Do-Kyun Kim
Keyword(s):  
Femoral Artery ◽  
Superficial Femoral Artery ◽  
Extracorporeal Shock Wave Therapy ◽  
Covered Stent ◽  
True Aneurysm ◽  
Extracorporeal Shock Wave ◽  
Covered Stent Graft ◽  
The Right ◽  
Stent Graft Implantation ◽  
Graft Implantation

Abstract Background  Isolated true aneurysms in the superficial femoral artery (SFA) have rarely been reported. Most cases are undiagnosed until rupture or the occurrence of complications. Case summary A 36-year-old woman presented with a palpable, pulsating mass on her right thigh which had increased in size over 2 months. She also had a swollen right leg and mild claudication (Stage II in Rutherford classification). For 2 months, the patient was treated by manual massage, acupuncture, and extracorporeal shock wave therapy in local clinics. Bed-side ultrasonography identified a 3.4-cm sized true aneurysm of the right SFA. There were no other aneurysms in arteries from head to toe. There was no evidence of atherosclerotic risk factors or connective tissue disease. The patient was successfully treated by a covered stent graft implantation without any complications. Discussion Isolated true aneurysm in the SFA is rare and tends to go undiagnosed especially in young women. Ultrasonography is an easy and useful diagnostic tool for differential diagnosis of thigh mass. In this case, endovascular treatment was safely applied for a true aneurysm without rupture.

Treatment of Thoracic Aortic Dissection with Stent-Grafts: Midterm Results

2002 ◽  
Vol 9 (6) ◽  
pp. 817-821 ◽  
Author(s):  
Won-Heum Shim ◽  
Bon-Kwon Koo ◽  
Young-Sup Yoon ◽  
Donghoon Choi ◽  
Yangsoo Jang ◽  
...  
Keyword(s):  
Aortic Dissection ◽  
Stent Graft ◽  
False Lumen ◽  
Endovascular Stent ◽  
Stent Grafts ◽  
Endovascular Stent Graft ◽  
Thoracic Aortic Dissection ◽  
Stent Graft Implantation ◽  
Graft Implantation

Purpose: To evaluate the early and midterm outcomes after stent-graft implantation for dissection in the descending thoracic aorta. Methods: Sixteen custom-made endovascular stent-grafts were implanted in 15 patients (10 men; mean age 55.9 ± 13.7 years, range 32–82) with descending thoracic aortic dissection. Indications for stent-graft implantation were persistent symptoms unresponsive to medical treatment or progressive enlargement of the false lumen. Clinical and imaging surveillance with computed tomography was performed within 1 month of the procedure and at 3 to 6-month intervals in follow-up. Results: Endovascular stent-graft implantation at the target site was successful in 14 (93%) patients; 1 device migrated, leaving the false lumen open to flow in the failed case. One (7%) patient who was treated emergently for rupture died suddenly 2 days after the procedure. Over an average follow-up of 31.5 ± 23.8 months, 1 (7%) patient died and 2 (14%) patients underwent surgical treatment due to recurrent dissection. The remaining 10 patients showed complete thrombosis of the false lumen; in 3, the false lumen completely resolved. Conclusions: Endovascular stent-graft implantation in descending thoracic aortic dissection is a feasible, safe, and effective treatment modality. However, further studies are necessary in a greater number of patients to determine if wider application of this minimally invasive procedure is justified.

Predictors of long-term outcomes after polytetrafluoroethylene-covered stent-graft repair of peripheral arterial aneurysms, pseudo-aneurysms, and arterio-venous fistulas

Vascular ◽  
2020 ◽  
Vol 28 (4) ◽  
pp. 355-359
Author(s):  
Osman Melih Topcuoglu ◽  
Cetin Murat Altay ◽  
Ayhan Alpar ◽  
Fahrettin Kucukay
Keyword(s):  
Stent Graft ◽  
Patency Rate ◽  
Covered Stent ◽  
Primary Patency ◽  
Secondary Patency ◽  
Stent Grafts ◽  
Primary Patency Rate ◽  
Stent Diameter ◽  
Peripheral Arterial ◽  
Covered Stent Graft

Objectives To evaluate the primary patency rate at three years for the infra-aortic peripheral arterial pathologies treated with polytetrafluoroethylene-covered stent-grafts. Methods Patients treated with self-expandable polytetrafluoroethylene-covered stent-grafts for infra-aortic peripheral arterial aneurysms, pseudo-aneurysms, and arterio-venous fistulas were evaluated retrospectively. A total of 48 patients (35 male, 13 female; mean age: 53.8 ± 13.5) were included with 29.0 ± 16.5 months (median 27, range 4–70) mean follow-up period. The primary objective was to determine the primary patency rate at three years. The secondary objectives were to compare type and localization of pathology, and length and diameter of the stent-grafts with primary patency rate. Kaplan–Meier test was used as the main statistical method. Results Overall mean primary patency rate at three years was 77.10%. Polytetrafluoroethylene-covered stent-graft implantation in aneurysms had worse primary patency rate than pseudo-aneurysms and arterio-venous fistulas (66.6%, P = 0.03; 76.9%, P = 0.03; 88.2%, P = 0.01, respectively). Stent-graft location, length, and diameter are not associated with primary patency rate ( P > 0.05) but stent diameter is associated with better primary assisted and secondary patency rates ( P < 0.05). Conclusions Pathology of the lesion is associated with the long-term primary patency rate of polytetrafluoroethylene-covered stent-grafts but not the stent-graft location, length, or diameter. Stent diameter is associated with primary assisted and secondary patency rates.

scholarly journals Stent grafts implantation in patients with life-threatening aortic conditions – first experience in Kyrgyz Republic

2019 ◽  
Vol 3 (Issue 4) ◽  
pp. 208
Author(s):  
I.Z. Abdyldaev ◽  
S.D. Chevgun ◽  
M.A. Aripov ◽  
I.H. Bebezov ◽  
D. Ch. Cholponbaev ◽  
...  
Keyword(s):  
Stent Graft ◽  
Endovascular Aneurysm Repair ◽  
False Lumen ◽  
Kyrgyz Republic ◽  
Aortic Diseases ◽  
Stent Grafts ◽  
Life Threatening ◽  
Aortic Intima ◽  
Stent Graft Implantation ◽  
Graft Implantation

Objective: Aortic diseases remain an acute and debatable problem. Among all the aortic pathologies, the most dangerous are dynamic aneurysmal expansion, traumatic dissections and / or aneurysms, pure aortic intima dissections. Contemporary and less invasive treatment method is the stent graft implantation into aorta. This report describes the first experience of thoracic endovascular aortic repair (TEVAR) and endovascular aneurysm repair (EVAR) in the Kyrgyz Republic in consecutive patients with life-threatening aortic conditions. Methods: Nine patients, who underwent TEVAR and EVAR, were presented after all clinical examinations, echocardiography and computed tomography angiography with various life-threatening aortic diseases. Among the pathologies there were 2 (22.2%) dissections only, traumatic aneurysm 1 (11.1%), aneurysm without dissection 1 (11.1%), aneurysm with intimal dissection 5 (55.6%). Seven patients with dissection had type B (The Stanford classification). Results: TEVAR was performed in eight cases EVAR just in one. All patients reached the 6-month endpoint.  None of the following, such as aneurysm expansion, aneurysm thrombosis or a functioning of false lumen at the sites of the stent graft implantation have been recorded. In addition, no further progression of the false lumen below the implantation zones was visualized. Mean diameter of stent grafts was 31.4 ± 4.8 mm and  188.9 ± 34.6 mm in length. Conclusion: This modest observation showed the effectiveness of stent grafts implantation procedures in various aortic life-threatening conditions, such as aneurysm and / or aortic intima dissection.

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