scholarly journals Valiant NAVION Stent Graft System Application: First Asian Case Series Analysis

2020 ◽  
Author(s):  
Chi Ying Simon Chow ◽  
Yan Kit Ho ◽  
Takuya Fujikawa ◽  
Kevin Lim ◽  
Cheuk Man Chu ◽  
...  
Keyword(s):  
Hospital Stay ◽  
Stent Graft ◽  
Case Series ◽  
Thoracic Endovascular Aortic Repair ◽  
Endovascular Aortic Repair ◽  
Technical Success ◽  
Term Survival ◽  
Aortic Repair ◽  
The Mean ◽  
Aortic Pathologies

Background and aim of the study The Valiant NavionTM stent graft system is a third-generation low profile thoracic endograft designed for thoracic endovascular aortic repair. In this population analysis, we report on the first Asian all-comers experience and outcomes who underwent thoracic endovascular aortic repair with the use of this new stent graft system. Methods Between May 2019 and October 2020, 21 patients with different aortic pathologies were prospectively recruited and retrospectively analyzed. Important clinical and device-related outcomes were evaluated. The endpoints included short-term survival, technical success, access failures, major vascular and clinical complications, endoleaks, and hospital stay. Results The commonest indication of stenting was penetrating aortic ulcers (28.6%) and 6 (28.6%) patients had emergency stenting performed for aortic transection or rupture. 30 days of survival post-procedure was recorded and complete. There were no major vascular complications. Deployment accuracy was 100%, and the technical success rate was 94.7% (18/19) with 1 patient having a type 2 endoleak on follow-up imaging. No neurological complications were noted. The mean operative time was 95 +/- 73.6 mins and the mean fluoroscopy time was 16.2 +/- 10.8 mins. Mean hospital stay for elective zone 2, 3 and 4 stenting was 5.3 +/- 3.8 days, and only 1 patient post zone 1 TEVAR required a brief (0.5 days) ICU stay. All procedures were performed via the percutaneous transfemoral route with 100% success in percutaneous closure. Conclusion This first reported Asian case series demonstrated versatility, safety, and efficacy of the Valiant NavionTM stent in Asian patients with different aortic pathologies

scholarly journals Handmade stent graft fenestration to preserve left subclavian artery in thoracic endovascular aortic repair†

2019 ◽  
Vol 56 (3) ◽  
pp. 587-594 ◽  
Author(s):  
Huey-Shiuan Kuo ◽  
Jih-Hsin Huang ◽  
Jer-Shen Chen
Keyword(s):  
Carotid Artery ◽  
Stent Graft ◽  
Subclavian Artery ◽  
Common Carotid Artery ◽  
Left Subclavian Artery ◽  
Thoracic Endovascular Aortic Repair ◽  
Endovascular Aortic Repair ◽  
Technical Success ◽  
Aortic Stent Graft ◽  
Aortic Pathologies

Abstract OBJECTIVES This study aimed to evaluate the efficacy and safety of a handmade fenestrated stent graft over an aortic stent graft for preserving the left subclavian artery (LSA) in thoracic endovascular aortic repair (TEVAR). METHODS From July 2015 to October 2018, a total of 32 consecutive patients with various thoracic aortic pathologies who underwent TEVAR in which handmade fenestration over a thoracic aortic stent graft was used for LSA were included. Outcomes including technical success, procedure-related complications, perioperative mortality and morbidity and graft patency were analysed. RESULTS Twenty-four patients (75.00%) presented with aortic dissection, 5 patients (15.63%) with thoracic aortic aneurysm and 2 patients (6.25%) with penetrating aortic ulcer; 1 patient (3.13%) required re-TEVAR due to endoleak and sac expansion from previous TEVAR for thoraco-abdominal aneurysm. TEVAR was performed in a zone 2 landing with single fenestration for LSA (26 patients, 81.25%), zone 1 landing with double fenestration for both LSA and left common carotid artery (5 patients, 15.63%) or zone 1 landing with single fenestration for LSA and a chimney graft for left common carotid artery (1 patient, 3.13%). The technical success rate, defined as the successful alignment of fenestration to LSA, was 93.75%. At a mean follow-up of 17.3 months, 4 cases of endoleak and 2 cases of stent graft-induced new entry were noted, 3 of which were treated endovascularly. CONCLUSIONS Our preliminary results demonstrate the viability of preserving LSA blood flow in TEVAR using a handmade stent graft fenestration to treat various aortic pathologies in various clinical situations and the technical feasibility and short-term results that may justify the use of this method in emergency cases.

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.

scholarly journals Thoracic Endovascular Aortic Repair of Esophageal Cancer-Associated Aortoesophageal Fistula: A Case Report and Literature Review

2018 ◽  
Vol 2018 ◽  
pp. 1-5 ◽  
Author(s):  
Akiko Sasaki ◽  
Hideto Egashira ◽  
Shinnosuke Tokoro ◽  
Chikamasa Ichita ◽  
Satoshi Takizawa ◽  
...  
Keyword(s):  
Esophageal Cancer ◽  
Stent Graft ◽  
Postoperative Management ◽  
Thoracic Endovascular Aortic Repair ◽  
Endovascular Aortic Repair ◽  
Stent Insertion ◽  
Aortoesophageal Fistula ◽  
Bridge To Surgery ◽  
Aortic Repair ◽  
T4 Esophageal Cancer

Background. Thoracic endovascular aortic repair of an aortoesophageal fistula is an effective emergency treatment for patients with T4-esophageal cancer, as it prevents sudden death, and is a bridge to surgery. However, the course of unresectable malignant aortoesophageal fistula treated with thoracic endovascular aortic repair alone is not well-known. Case Presentation. We report a 67-year-old Japanese man with T4-esophageal cancer who experienced a chemoradiation-induced aortoesophageal fistula and was rescued with thoracic endovascular aortic repair. He recovered after the procedure and survived for 4 additional months with management of a mycotic aneurysm and secondary aortoesophageal fistula with the exposure of the stent graft into the esophagus. Thoracic endovascular aortic repair of aortoesophageal fistula with T4-esophageal cancer extended life for nearly an average of 4 months in the reported cases. As a postoperative complication, the exposure of the stent graft into the esophagus is rare but life-threatening; the esophageal stent insertion was effective. Conclusions. With postoperative management advances, thoracic endovascular aortic repair can improve survival and increase the quality of life of patients with T4-esophageal cancer.

scholarly journals Thoracic endovascular aortic repair with branched Inoue Stent Graft for arch aortic aneurysms

2017 ◽  
Vol 66 (5) ◽  
pp. 1340-1348.e5 ◽  
Author(s):  
Junichi Tazaki ◽  
Kanji Inoue ◽  
Hirooki Higami ◽  
Nobuya Higashitani ◽  
Masanao Toma ◽  
...  
Keyword(s):  
Stent Graft ◽  
Thoracic Endovascular Aortic Repair ◽  
Aortic Aneurysms ◽  
Endovascular Aortic Repair ◽  
Aortic Repair

High Wall Stress May Predict the Formation of Stent-Graft–Induced New Entries After Thoracic Endovascular Aortic Repair

2018 ◽  
Vol 25 (5) ◽  
pp. 571-577 ◽  
Author(s):  
Claudia Menichini ◽  
Selene Pirola ◽  
Baolei Guo ◽  
Weiguo Fu ◽  
Zhihui Dong ◽  
...  
Keyword(s):  
Stent Graft ◽  
Large Population ◽  
False Lumen ◽  
Wall Stress ◽  
Ct Images ◽  
Thoracic Endovascular Aortic Repair ◽  
Endovascular Aortic Repair ◽  
Aortic Repair ◽  
Type B Dissection

Purpose: To explore the potential role of morphological factors and wall stress in the formation of stent-graft–induced new entries (SINE) based on computed tomography (CT) images after thoracic endovascular aortic repair (TEVAR). Case Report: Two female patients aged 59 years (patient 1) and 44 years (patient 2) underwent TEVAR for type B dissection in the chronic (patient 1) or subacute (patient 2) phase. CT scans at 3-month follow-up showed varying degrees of false lumen thrombosis in both patients. At 14-month follow-up, a SINE was observed in patient 1 while the dissected aorta in the other patient remained stable. Morphological and finite element analyses were performed based on the first follow-up CT images. The computational results showed that the SINE patient had higher stent-graft tortuosity than the non-SINE patient and much higher wall stress in the region close to the distal SINE. Conclusion: This case study suggests that high stent-graft tortuosity can lead to high wall stress, which is potentially linked to the formation of SINE. Further large population-based studies are needed to confirm this preliminary finding.

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