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Keywords = fenestrated endovascular repair

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16 pages, 1360 KB  
Systematic Review
Systematic Review and Meta-Analysis on the BeGraft Peripheral and BeGraft Peripheral PLUS Outcomes as Bridging Covered Stents in Fenestrated and Branched Endovascular Aortic Repair
by George Apostolidis, Petroula Nana, José I. Torrealba, Giuseppe Panuccio, Athanasios Katsargyris and Tilo Kölbel
J. Clin. Med. 2025, 14(15), 5221; https://doi.org/10.3390/jcm14155221 - 23 Jul 2025
Viewed by 358
Abstract
Background/Objective: Bridging stent optimal choice in fenestrated and branched endovascular aortic repair (f/bEVAR) is under investigation. This systematic review and meta-analysis studied the outcomes of the BeGraft peripheral and peripheral PLUS as bridging stents in f/bEVAR. Methods: The methodology was pre-registered [...] Read more.
Background/Objective: Bridging stent optimal choice in fenestrated and branched endovascular aortic repair (f/bEVAR) is under investigation. This systematic review and meta-analysis studied the outcomes of the BeGraft peripheral and peripheral PLUS as bridging stents in f/bEVAR. Methods: The methodology was pre-registered to the PROSPERO (CRD420251007695). Following the PRISMA guidelines and PICO model, the PubMed, Cochrane and Embase databases were searched for observational studies and randomized control trials, in English, from 2015 to 2025, reporting on f/bEVAR patients using the second-generation BeGraft peripheral or the BeGraft peripheral PLUS balloon expandable covered stent (BECS; Bentley InnoMed, Hechingen, Germany) for bridging. The ROBINS-I assessed the risk of bias and GRADE the quality of evidence. Target vessel technical success, occlusion/stenosis, endoleak Ic/IIIc, reintervention and instability during follow-up were primary outcomes, assessed using proportional meta-analysis. Results: Among 1266 studies, eight were included (1986 target vessels; 1791 bridged via BeGraft); all retrospective, except one. The ROBINS-I showed that seven were at serious risk of bias. According to GRADE, the quality of evidence was “very low” for primary outcomes. Target vessel technical success was 99% (95% CI 98–100%; I2 = 12%). The mean follow-up was 20.2 months. Target-vessel instability was 3% (95% CI 2–5%; I2 = 44%), occlusion/stenosis was 1% (95% CI 1–4%; I2 = 8%) and endoleak Ic/IIIc was 1% (95% CI 0–3%; I2 = 0%). The estimated target-vessel reintervention was 2% (95% CI 2–4%; I2 = 12%). Celiac trunk, superior mesenteric and renal artery instability were 1% (95% CI 0–16%; I2 = 0%;), 1% (95% CI 0–5%; I2 = 14%) and 4% (95% CI 2–7%; I2 = 40%), respectively. Conclusions: The BeGraft peripheral and peripheral PLUS BECS performed with high technical success and low instability when used for bridging in f/bEVAR. Cautious interpretation is required due to the very low quality of evidence. Full article
(This article belongs to the Special Issue Advances in Vascular and Endovascular Surgery: Second Edition)
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12 pages, 1214 KB  
Article
Quadruple Fenestrated Stentgrafts for Complex Aortic Aneurysms: Outcomes of Non-Stented Celiac Artery Fenestrations
by Daniela Toro, Kim Bredahl, Katarina Björses, Tomas Ohrlander, Katja Vogt and Timothy Resch
J. Clin. Med. 2025, 14(15), 5189; https://doi.org/10.3390/jcm14155189 - 22 Jul 2025
Viewed by 377
Abstract
Background: Fenestrated stentgrafting has become a first-line treatment for juxtarenal aneurysms, and the incorporation of all renovisceral vessels with fenestrations has become common to increase the proximal sealing zone. This increases the complexity of the repair compared to using fewer fenestrations, and [...] Read more.
Background: Fenestrated stentgrafting has become a first-line treatment for juxtarenal aneurysms, and the incorporation of all renovisceral vessels with fenestrations has become common to increase the proximal sealing zone. This increases the complexity of the repair compared to using fewer fenestrations, and stenting of the celiac artery (CA), in particular, can be technically challenging. Objective: This study evaluates the mid-term outcomes of leaving the celiac artery unstented during quadruple fenestrated stentgrafting for complex aortic aneurysms. Additionally, it explores the clinical and anatomical factors that influence the decision to not stent the celiac artery. Methods: A retrospective review was conducted of patients with complex aortic aneurysms who underwent elective fenestrated endovascular aneurysm repair (FEVAR) between 2018 and 2023. Custom Cook Zenith grafts were used, and all patients underwent preoperative computed tomography angiography (CTA) as well as follow-up CTA to assess the celiac artery. This study evaluated celiac artery anatomic factors, such as proximal and distal diameter; presence of stenosis (<50% or >50%) and patency; length of any CA stenosis; CA takeoff angulation, CA tortuosity, early CA division; calcification; and presence of CA aneurysm or ectasia anatomical abnormalities. Recorded outcomes of CA instability included any stent stenosis, target vessel occlusion, reintervention, or endoleak (types 1C and 3). Results: A total of 101 patients underwent FEVAR, with 72 receiving a stent in the celiac artery and 29 not receiving it. Rates of technical success (96.5% vs. 100%), intervention times (256 min vs. 237 min), and lengths of hospital stay (5.1 vs. 4.7 days) were similar between unstented vs. stented groups. At one year, no significant difference in celiac artery instability was noted (17.2 vs. 5.5%; p = 0.06). Risk factors for CA occlusion on univariate analysis included a steep takeoff angle (≥140°), length of stenosis >6.5 mm, proximal diameter ≤6.5 mm, preoperative stenosis ≥50%, and celiac artery tortuosity. Conclusions: Anatomical features of the CA impact the ability to achieve routine CA stenting during FEVAR. Selectively not stenting the celiac artery during FEVAR might simplify the procedure without compromising patient safety and mid-term outcomes. Full article
(This article belongs to the Special Issue Aortic Aneurysms: Recent Advances in Diagnosis and Treatment)
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10 pages, 536 KB  
Article
Suitability of Endovascular Materials for Physician-Modified Fenestrated Endografts in Urgent Juxtarenal and Pararenal Aortic Pathologies
by Mario Lescan, Aleksandar Dimov, Davide Turchino, Alexandru Toma, Johannes Scheumann, Tim Berger, Maximilian Kreibich, Roman Gottardi, Martin Czerny and Stoyan Kondov
J. Clin. Med. 2025, 14(14), 4830; https://doi.org/10.3390/jcm14144830 - 8 Jul 2025
Viewed by 417
Abstract
Background/Objectives: Physician-modified endografts (PMEGs) have emerged as a treatment option for complex aortic pathologies. Uncertainty remains regarding the modification techniques and the most suitable materials for customization of fenestrated endografts. The aim of this study was to evaluate CE-marked endovascular aortic repair [...] Read more.
Background/Objectives: Physician-modified endografts (PMEGs) have emerged as a treatment option for complex aortic pathologies. Uncertainty remains regarding the modification techniques and the most suitable materials for customization of fenestrated endografts. The aim of this study was to evaluate CE-marked endovascular aortic repair (EVAR) devices and suitable materials for device modification in PMEGs for juxtarenal and pararenal aortic pathologies. Methods: This single-center observational study included patients treated with the physician-modified TREO (Terumo Aortic, Inchinnan, UK) device between April and December 2024. All patients had aortic ruptures or symptomatic aneurysms and unfavorable anatomy or severe comorbidities, making standard EVAR and open repair unsuitable. Procedural data were recorded and analyzed, including in-hospital outcomes. The “wire visibility” and “sheath–wire contrast” of endografts were assessed under fluoroscopy, and different resheathing techniques were compared. Results: Technical success was achieved in all five patients. The number of fenestrations per patient was 2.6 (range: 1–4). In one patient (1/5), type Ib and type IIIc endoleaks were observed postoperatively, requiring reintervention. No in-hospital mortality occurred. The ICU and hospital stay were 24 h (range: 18–40 h) and 8 days (range: 6–20 days), respectively. Moreover, the One SNARE wire was identified as the wire with the highest “wire visibility”, and Endurant II showed the best “sheath–wire contrast”. Resheathing with the dedicated crimping device was superior to the tape-assisted method. Conclusions: The TREO platform, in synergy with suitable additional materials, offers a viable solution for urgent aortic pathologies requiring PMEGs. Continued refinement of materials and procedural standardization could enhance the long-term outcome. Full article
(This article belongs to the Section Cardiovascular Medicine)
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22 pages, 5786 KB  
Review
Narrative and Pictorial Review on State-of-the-Art Endovascular Treatment for Focal Non-Infected Lesions of the Abdominal Aorta: Anatomical Challenges, Technical Solutions, and Clinical Outcomes
by Mario D’Oria, Marta Ascione, Paolo Spath, Gabriele Piffaretti, Enrico Gallitto, Wassim Mansour, Antonino Maria Logiacco, Giovanni Badalamenti, Antonio Cappiello, Giulia Moretti, Luca Di Marzo, Gianluca Faggioli, Mauro Gargiulo and Sandro Lepidi
J. Clin. Med. 2025, 14(13), 4798; https://doi.org/10.3390/jcm14134798 - 7 Jul 2025
Viewed by 657
Abstract
The natural history of focal non-infected lesions of the abdominal aorta (fl-AA) remains unclear and largely depends on their aetiology. These lesions often involve a focal “tear” or partial disruption of the arterial wall. Penetrating aortic ulcers (PAUs) and intramural hematomas (IMHs) are [...] Read more.
The natural history of focal non-infected lesions of the abdominal aorta (fl-AA) remains unclear and largely depends on their aetiology. These lesions often involve a focal “tear” or partial disruption of the arterial wall. Penetrating aortic ulcers (PAUs) and intramural hematomas (IMHs) are examples of focal tears in the aortic wall that can either progress to dilatation (saccular aneurysm) or fail to fully propagate through the medial layers, potentially leading to aortic dissection. These conditions typically exhibit a morphology consistent with eccentric saccular aneurysms. The management of focal non-infected pathologies of the abdominal aorta remains a subject of debate. Unlike fusiform abdominal aortic aneurysms, the inconsistent definitions and limited information regarding the natural history of saccular aneurysms (sa-AAAs) have prevented the establishment of universally accepted practice guidelines for their management. As emphasized in the latest 2024 ESVS guidelines, the focal nature of these diseases makes them ideal candidates for endovascular repair (class of evidence IIa—level C). Moreover, the Society for Vascular Surgery just referred to aneurysm diameter as an indication for treatment suggesting using a smaller diameter compared to fusiform aneurysms. Consequently, the management of saccular aneurysms is likely heterogeneous amongst different centres and different operators. Endovascular repair using tube stent grafts offers benefits like reduced recovery times but carries risks of migration and endoleak due to graft rigidity. These complications can influence long-term success. In this context, the use of endovascular bifurcated grafts may provide a more effective solution for treating these focal aortic pathologies. It is essential to achieve optimal sealing regions through anatomical studies of aortic morphology. Additionally, understanding the anatomical characteristics of focal lesions in challenging necks or para-visceral locations is indeed crucial in device choice. Off-the-shelf devices are favoured for their time and cost efficiency, but new endovascular technologies like fenestrated endovascular aneurysm repair (FEVAR) and custom-made devices enhance treatment success and patient safety. These innovations provide stent grafts in various lengths and diameters, accommodating different aortic anatomies and reducing the risk of type III endoleaks. Although complicated PAUs and focal saccular aneurysms rarely arise in the para-visceral aorta, the consequences of rupture in this segment might be extremely severe. Experience borrowed from complex abdominal and thoracoabdominal aneurysm repair demonstrates that fenestrated and branched devices can be deployed safely when anatomical criteria are respected. Elective patients derive the greatest benefit from a fenestrated graft, while urgent cases can be treated confidently with off-the-shelf multibranch systems, reserving other types of repairs for emergent or bail-out cases. While early outcomes of these interventions are promising, it is crucial to acknowledge that limited aortic coverage can still impede effective symptom relief and lead to complications such as aneurysm expansion or rupture. Therefore, further long-term studies are essential to consolidate the technical results and evaluate the durability of various graft options. Full article
(This article belongs to the Special Issue Clinical Advances in Aortic Disease and Revascularization)
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18 pages, 873 KB  
Review
Beyond Endoleaks: A Holistic Management Approach to Late Abdominal Aortic Aneurysm Ruptures After Endovascular Repair
by Rafic Ramses and Obiekezie Agu
J. Vasc. Dis. 2025, 4(3), 24; https://doi.org/10.3390/jvd4030024 - 22 Jun 2025
Viewed by 451
Abstract
Late ruptures of abdominal aortic aneurysms post-endovascular aneurysm repair present a significant risk, occurring in about 0.9% of cases. The typical timeframe leading to rupture is roughly 37 months, with the primary factors often linked to endoleaks, especially types I and III, which [...] Read more.
Late ruptures of abdominal aortic aneurysms post-endovascular aneurysm repair present a significant risk, occurring in about 0.9% of cases. The typical timeframe leading to rupture is roughly 37 months, with the primary factors often linked to endoleaks, especially types I and III, which sustain pressure within the aneurysm sac. The approaches to managing late ruptures consist of endovascular approaches, open surgical interventions, and conservative care, each customised to the patient’s specific characteristics. When feasible endovascular repair is favoured, additional stent grafts are deployed to seal endoleaks and offer lower perioperative mortality rates compared to those for open surgery. Open repair is considered when endovascular solutions fail or are not feasible. Conservative management with active monitoring and supportive treatment can be considered for haemodynamically stable non-surgical patients. Endovascular repair methods like fenestrated/branched EVAR (F/BEVAR) and parallel grafting (PGEVAR) are effective for complicated anatomies and show high technical success with reduced morbidity compared to that with open repairs. Chimney techniques and physician-modified endografts may help regain and broaden the sealing zone. Limb extensions with or without embolisation, interposition endografting, and whole-body relining are helpful options for type IB and type 3–5 endoleaks. Open surgical repair carries a higher perioperative mortality but may be essential in preventing death due to rupture following failed EVAR. The choice depends on the patient’s clinical stability and fitness for surgery in the absence of a viable endovascular alternative. This article discusses the available options for treating late rupture after EVAR, emphasising the importance of individualised treatment plans and the need for rigorous postoperative surveillance to prevent such complications. Full article
(This article belongs to the Section Peripheral Vascular Diseases)
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8 pages, 429 KB  
Article
Using a Standard Infrarenal Bifurcated Device as a Quadruple-Fenestrated Physician-Modified Endograft for Complex Abdominal Aortic Aneurysms—A Simulation Study
by Artúr Hüttl, András Szentiványi, Ákos Bérczi, Bendegúz Juhos, Fanni Éva Szablics, Péter Osztrogonácz, Judit Csőre, Sarolta Borzsák and Csaba Csobay-Novák
J. Clin. Med. 2025, 14(12), 4249; https://doi.org/10.3390/jcm14124249 - 15 Jun 2025
Viewed by 563
Abstract
Background/Objectives: We sought to demonstrate the versatility and economy of physician-modified endograft (PMEG) fenestrated endovascular aortic repair (FEVAR) based on the Treo (Terumo Aortic) platform for patients referred for custom-made device (CMD) FEVAR due to a complex abdominal aortic aneurysm (CAAA). Endovascular [...] Read more.
Background/Objectives: We sought to demonstrate the versatility and economy of physician-modified endograft (PMEG) fenestrated endovascular aortic repair (FEVAR) based on the Treo (Terumo Aortic) platform for patients referred for custom-made device (CMD) FEVAR due to a complex abdominal aortic aneurysm (CAAA). Endovascular planning was performed utilizing a standardized design incorporating all visceral arteries with a low supra-celiac landing zone. The pure cost of the aortic components was compared between the PMEG and CMD designs. Methods: A total of 39 consecutive patients treated with CMD FEVAR due to a CAAA between September 2018 and December 2023 were recruited at a tertiary vascular center for a retrospective evaluation. Endovascular planning was performed on readily available computed tomography angiography (CTA) datasets using 3Mensio Vascular (Pie Medical Imaging) software. The actual cost of the major components was compared between the implanted CMD platform produced by Cook and the planned Treo-based PMEG repair. Results: A total of 155 fenestrations were planned on 3 triple-, 34 quadruple-, and two quintuple-fenestrated devices. The 90 mm distance between the proximal edge and the flow divider of the 120 mm long main body of the Treo graft allowed for the placement of all necessary fenestrations of the target arteries without the need to reduce the 3 cm supra-celiac landing zone while also preserving a safety distance of >1 cm to the flow divider. The costs of the components were EUR 33896 for CMD and EUR 8878 for a PMEG. Conclusions: This retrospective study suggests that a quadruple-fenestrated PMEG based on the Treo bifurcation is a highly versatile alternative with a significant price advantage over custom-made devices for the treatment of complex abdominal aortic aneurysms. Full article
(This article belongs to the Section Vascular Medicine)
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17 pages, 1101 KB  
Article
Proximal Landing Zone’s Impact on Outcomes of Branched and Fenestrated Aortic Arch Repair
by Petroula Nana, Konstantinos Spanos, Giuseppe Panuccio, José I. Torrealba, Fiona Rohlffs, Christian Detter, Yskert von Kodolitsch and Tilo Kölbel
J. Clin. Med. 2025, 14(10), 3288; https://doi.org/10.3390/jcm14103288 - 8 May 2025
Viewed by 468
Abstract
Background/Objectives: The impact of the proximal landing zone has not been investigated in fenestrated and branched endovascular aortic arch repair (f/bTEVAR). This study aimed to analyze the f/bTEVAR outcomes in patients with non-native (nNPAL) vs. native proximal aortic landing (NPAL). Methods: The [...] Read more.
Background/Objectives: The impact of the proximal landing zone has not been investigated in fenestrated and branched endovascular aortic arch repair (f/bTEVAR). This study aimed to analyze the f/bTEVAR outcomes in patients with non-native (nNPAL) vs. native proximal aortic landing (NPAL). Methods: The STROBE statement was followed in order to conduct a single-center retrospective analysis of patients with nNPAL vs. NPAL managed, from 1 September 2011 to 30 June 2022, with f/bTEVAR. The primary outcomes were technical success, 30-day mortality and stroke. Results: A total of 83 patients with nNPAL vs. 126 patients with NPAL were included. Among the nNPAL group, 34 (39.7%) underwent previous aortic arch replacement and the remaining underwent an ascending aortic replacement. The nNPAL patients were more commonly treated for chronic dissections (nNPAL: 70.6% vs. NPAL: 21.6%, p < 0.001), presented a more proximal disease (zone 0: nNPAL: 27.7% vs. NPAL: 7.1%, p < 0.001; zone 1: nNPAL: 50.6% vs. NPAL: 10.2%, p < 0.001) and received more triple-branch devices (nNPAL: 16.9% vs. NPAL: 3.2%, p < 0.001), with a higher rate of Ishimaru zone 0 landing (nNPAL: 86.8% vs. NPAL: 51.6%, p < 0.001). Technical success (nNPAL: 98.8% vs. NPAL: 94.4%, p = 0.07) and 30-day mortality (nNPAL: 6.0%, vs. NPAL: 11.9%, p = 0.16) were similar. Stroke was lower among nNPAL patients (nNPAL: 4.8% vs. NPAL: 13.5%, p = 0.04). A multivariate regression analysis confirmed nNPAL as an independent protector for stroke (p = 0.002). Survival (log rank: p = 0.02) was higher within the nNPAL group at 24 months. Conclusions: f/bTEVAR in patients with nNPAL zone showed encouraging outcomes. Despite more proximal landing in zone 0, stroke was significantly lower when compared to NPAL patients. Full article
(This article belongs to the Special Issue Advances in Aortic Surgery)
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15 pages, 6479 KB  
Article
A Computational Study on Renal Artery Anatomy in Patients Treated with Fenestrated or Branched Endovascular Aneurysm Repair
by Yuzhu Wang, Yuna Sang, Wendong Li, Minjie Zhou, Yushun Zhao, Xiaodong He, Chao Wang, Xiaoqiang Li and Zhao Liu
Bioengineering 2025, 12(5), 482; https://doi.org/10.3390/bioengineering12050482 - 1 May 2025
Cited by 1 | Viewed by 488
Abstract
(1) Background: Renal artery occlusion after F/B EVAR for abdominal aortic aneurysm is a serious complication that may require re-intervention, and understanding the hemodynamic mechanisms by which it occurs is essential to optimize the surgical procedure. (2) Methods: We used computational fluid dynamics [...] Read more.
(1) Background: Renal artery occlusion after F/B EVAR for abdominal aortic aneurysm is a serious complication that may require re-intervention, and understanding the hemodynamic mechanisms by which it occurs is essential to optimize the surgical procedure. (2) Methods: We used computational fluid dynamics (CFD) to analyze the impact of various parameters on blood flow. Theoretical vascular models were constructed based on the common dimensions and angles of aortic stents and branch arteries in clinical practice. Actual case models were constructed from CT image data of six patients treated with F/B-EVAR. Data were collected for analysis after simulation and calculation by FLUENT software. (3) Results: Theoretical model simulations showed that a larger tilt angle of the branch stent, smaller branch entry depth, and larger branch stent diameter were beneficial for blood flow. In the case models, a significant difference in the tilt angle of the renal artery stents was observed between the high- and low-flow groups, while the differences in entry depth and branch stent diameter were not significant. Occluded renal arteries had lower WSS values than patent ones. (4) Conclusions: This study offers valuable guidance for optimizing stent placement in F/B EVAR to mitigate renal artery occlusion risk. Full article
(This article belongs to the Special Issue Cardiovascular Hemodynamic Characterization: Prospects and Challenges)
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19 pages, 19828 KB  
Article
Blood Flow Simulation in Bifurcating Arteries: A Multiscale Approach After Fenestrated and Branched Endovascular Aneurysm Repair
by Spyridon Katsoudas, Stavros Malatos, Anastasios Raptis, Miltiadis Matsagkas, Athanasios Giannoukas and Michalis Xenos
Mathematics 2025, 13(9), 1362; https://doi.org/10.3390/math13091362 - 22 Apr 2025
Cited by 1 | Viewed by 727
Abstract
Pathophysiological conditions in arteries, such as stenosis or aneurysms, have a great impact on blood flow dynamics enforcing the numerical study of such pathologies. Computational fluid dynamics (CFD) could provide the means for the calculation and interpretation of pressure and velocity fields, wall [...] Read more.
Pathophysiological conditions in arteries, such as stenosis or aneurysms, have a great impact on blood flow dynamics enforcing the numerical study of such pathologies. Computational fluid dynamics (CFD) could provide the means for the calculation and interpretation of pressure and velocity fields, wall stresses, and important biomedical factors in such pathologies. Additionally, most of these pathological conditions are connected with geometric vessel changes. In this study, the numerical solution of the 2D flow in a branching artery and a multiscale model of 3D flow are presented utilizing CFD. In the 3D case, a multiscale approach (3D and 0D–1D) is pursued, in which a dynamically altered velocity parabolic profile is applied at the inlet of the geometry. The obtained waveforms are derived from a 0D–1D mathematical model of the entire arterial tree. The geometries of interest are patient-specific 3D reconstructed abdominal aortic aneurysms after fenestrated (FEVAR) and branched endovascular aneurysm repair (BEVAR). Critical hemodynamic parameters such as velocity, wall shear stress, time averaged wall shear stress, and local normalized helicity are presented, evaluated, and compared. Full article
(This article belongs to the Special Issue Modeling of Multiphase Flow Phenomena)
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22 pages, 6210 KB  
Review
General Information and Applications of Najuta Fenestrated Stent Grafts for Aortic Arch Aneurysms
by Seiji Onitsuka, Atsuhisa Tanaka, Hiroyuki Otsuka, Yusuke Shintani, Ryo Kanamoto, Shinya Negoto and Eiki Tayama
J. Clin. Med. 2025, 14(1), 36; https://doi.org/10.3390/jcm14010036 - 25 Dec 2024
Cited by 1 | Viewed by 1458
Abstract
Endovascular stent graft repair was developed to minimize the invasiveness of open surgery for thoracic and abdominal aortic diseases. This approach involves covering the diseased segment with a stented artificial graft. However, in thoracic endovascular aortic repair (TEVAR) for aortic arch diseases, special [...] Read more.
Endovascular stent graft repair was developed to minimize the invasiveness of open surgery for thoracic and abdominal aortic diseases. This approach involves covering the diseased segment with a stented artificial graft. However, in thoracic endovascular aortic repair (TEVAR) for aortic arch diseases, special consideration is needed to preserve the aortic arch vessels. Standard stent grafts often require additional procedures, such as bypass surgery, to reconstruct the arch vessels. The semi-custom-made Najuta fenestrated stent graft was developed to address this issue. It is a three-dimensional patient-specific stent graft with fenestrations that allow for the preservation of the arch vessels. This study discusses the unique features of the Najuta stent graft and the techniques for its deployment, and it provides an analysis of treatment outcomes based on the current literature. Full article
(This article belongs to the Special Issue Clinical Advances in Vascular and Endovascular Surgery)
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15 pages, 10127 KB  
Case Report
Endovascular Repair of Spontaneous Rupture of Stent Graft Branch in Thoracoabdominal Aortic Aneurysm—Management, Case Study, and Review
by Adam Płoński, Adam Filip Płoński, Michał Chlabicz and Jerzy Głowiński
J. Clin. Med. 2024, 13(24), 7687; https://doi.org/10.3390/jcm13247687 - 17 Dec 2024
Viewed by 1249
Abstract
Background: Stent-graft implantation is a widely recognized method for endovascular treatment of aortic aneurysms. In cases where the aneurysm involves the thoracic and abdominal aorta, repair including fenestrated and branched stent grafts provides a viable alternative. This approach, initially reserved for patients unsuitable [...] Read more.
Background: Stent-graft implantation is a widely recognized method for endovascular treatment of aortic aneurysms. In cases where the aneurysm involves the thoracic and abdominal aorta, repair including fenestrated and branched stent grafts provides a viable alternative. This approach, initially reserved for patients unsuitable for open surgery, has become preferred for anatomically appropriate thoracoabdominal aortic aneurysms. The Zenith t-Branch system has been extensively studied, demonstrating high technical success rates and acceptable mortality and morbidity. However, complications such as endoleaks, kinking, and stent-graft branch rupture remain significant challenges. Methods: We present the case of an 82-year-old male with a thoracoabdominal aortic aneurysm treated with endovascular aneurysm repair using the Zenith t-Branch. Four years post-implantation, he developed a spontaneous rupture of the stent-graft branch, leading to dangerous leakage and aneurysm sac enlargement. An urgent surgical intervention was performed, implanting additional Be-Graft into the damaged branch, restoring stent-graft continuity and revascularizing the superior mesenteric artery. Results: The procedure was completed successfully. We conducted a review of the latest literature on endovascular treatment of thoracoabdominal aortic aneurysms with particular emphasis on the possibility of repairing postoperative complications, especially endoleaks. Conclusions: While modern technologies have significantly improved outcomes, serious complications persist. Studies emphasize the importance of regular imaging follow-up for early complication detection and management. Continuous advancements in stent-graft technology aim to reduce complications further and improve outcomes. This case underscores the necessity of experienced operators in managing complex and rare complications and highlights the promising future of endovascular techniques in treating thoracoabdominal aortic aneurysms. Full article
(This article belongs to the Section Vascular Medicine)
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16 pages, 1752 KB  
Article
Custom-Made Device (CMD) for the Repair of Thoraco-Abdominal Aneurysm (TAA): Mid-Long Term Outcomes from a Single Southeast Asian Centre Experience in Singapore
by Nick Zhi Peng Ng, Jolyn Hui Qing Pang, Charyl Jia Qi Yap, Victor Tar Toong Chao, Kiang Hiong Tay and Tze Tec Chong
J. Clin. Med. 2024, 13(20), 6145; https://doi.org/10.3390/jcm13206145 - 15 Oct 2024
Cited by 1 | Viewed by 1546
Abstract
Introduction: Given the high risk of peri-operative morbidity and mortality associated with open repair, endovascular repair for thoraco-abdominal aneurysms is increasingly performed. This study aims to describe mid to long-term results for patients who were treated with COOK Custom-Made Endograft Device at a [...] Read more.
Introduction: Given the high risk of peri-operative morbidity and mortality associated with open repair, endovascular repair for thoraco-abdominal aneurysms is increasingly performed. This study aims to describe mid to long-term results for patients who were treated with COOK Custom-Made Endograft Device at a single Southeast Asian tertiary centre. Methods: Mid to long-term results of patients treated from 2012 to 2022 were retrospectively reviewed. Indications for treatment were aortic diameter > 5.5 cm, enlargement > 5 mm in 6 months or high-risk morphology. Clinical, operative, early to late complications and reintervention details were captured. The endpoints were technical success, primary patency and primary assisted patency. Results: Electronic medical records of 29 consecutive patients (64.4 ± 1.6 years old; 26/29 males 89.6%) were reviewed. 24/29 (83%) were hypertensive, and 20/29 (69%) were smokers. The mean diameter was 5.5 cm, and the majority were treated for Crawford type IV (19/29, 65.5%). Endograft deployment was 100%. Catheterisation of fenestration was successful in 109/116 (94%). 30-day mortality and morbidity were observed in 12/29 (41%), for which access site complications were most common. No significant haemorrhage or graft explant was recorded. The mean follow-up period was 32.4 months (range 1–108 months). Primary patency was 92.9% (95% CI: 83.8–100.0) at 6 months and decreased to 77.7% (95% CI: 63.4–95.2) at 24 months. Sac shrinkage or stability was noted in 17/29 (58.6%). Re-intervention was performed in 9/29 (31%) for limb occlusion (2/9, 22.2%), renal artery stent occlusion (1/9, 11.1%) and endoleaks (6/9, 66.6%). Assisted patency was maintained at 100% for 12 months before decreasing to 66.7% (95% CI: 37.9–100.0) at 24 months. Conclusions: The study reports the first mid-long-term result in this region, though limited by the sample size. Re-intervention at 30% suggests that disease and procedures remain challenging, emphasising the need to assimilate lessons and experience at high-volume centres. Full article
(This article belongs to the Special Issue Clinical Advances in Aortic Disease and Revascularization)
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13 pages, 1486 KB  
Article
Comparative Retrospective Cohort Study of Carotid-Subclavian Bypass versus In Situ Fenestration for Left Subclavian Artery Revascularization during Zone 2 Thoracic Endovascular Aortic Repair: A Single-Center Experience
by Evren Ozcinar, Nur Dikmen, Cagdas Baran, Onur Buyukcakir, Melisa Kandemir and Levent Yazicioglu
J. Clin. Med. 2024, 13(17), 5043; https://doi.org/10.3390/jcm13175043 - 26 Aug 2024
Viewed by 1610
Abstract
Background: Thoracic endovascular aortic repair (TEVAR) has become the first-line therapy for descending aortic disease. Recent studies have demonstrated that preventive revascularization of the left subclavian artery (LSA) in zone 2 TEVAR cases reduces the risk of neurological complications. However, there is no [...] Read more.
Background: Thoracic endovascular aortic repair (TEVAR) has become the first-line therapy for descending aortic disease. Recent studies have demonstrated that preventive revascularization of the left subclavian artery (LSA) in zone 2 TEVAR cases reduces the risk of neurological complications. However, there is no uniform consensus on the choice of revascularization techniques. Although carotid-subclavian bypass is considered the gold standard method, in situ fenestration techniques have also shown encouraging results. This study aims to compare the carotid-LSA bypass with in situ fenestration (ISF) for LSA revascularization and to discuss our treatment approach. Methods: We conducted a retrospective review of all patients undergoing zone 2 TEVAR with in situ fenestration (ISF) or carotid-subclavian artery bypasses for LSA revascularization at our institution between February 2011 and February 2024. Preoperative patient characteristics and primary outcomes, such as operative mortality, transient ischemic attack, stroke, and spinal cord ischemia, were analyzed between the groups. Results: During the 13-year study period, 185 patients underwent TEVAR procedures. Of these, 51 patients had LSA revascularization with zone 2 TEVAR; 32 patients underwent carotid-subclavian artery bypasses, and 19 underwent in situ fenestration. The technical success rate was 100%. Statistically, there was no significant difference between the groups in terms of primary outcomes such as stroke, transient ischemic attack, spinal cord ischemia, and death (p > 0.05). Conclusions: In situ fenestration (ISF) may be an effective and feasible method for LSA revascularization. With precise patient selection and in experienced hands, ISF appears to be associated with similar perioperative outcomes and mortality rates to the carotid-subclavian bypass. Full article
(This article belongs to the Section Cardiovascular Medicine)
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13 pages, 2033 KB  
Review
CO2 Angiography in the Standard and Complex Endovascular Repair of the Abdominal Aorta—A Narrative Review of the Literature
by Paolo Spath, Stefania Caputo, Federica Campana, Enrico Gallitto, Rodolfo Pini, Chiara Mascoli, Andrea Vacirca, Gianluca Faggioli and Mauro Gargiulo
J. Clin. Med. 2024, 13(16), 4634; https://doi.org/10.3390/jcm13164634 - 7 Aug 2024
Cited by 3 | Viewed by 1639
Abstract
Background/Objectives: Carbon dioxide digital-subtraction angiography (CO2-DSA) is an increasingly adopted technique in endovascular aortic repair (EVAR) and fenestrated/branched EVAR (F/B-EVAR); it is used to reduce the amount of iodinate contrast medium (ICM) and prevent postoperative renal function worsening (PO-RFW). Our [...] Read more.
Background/Objectives: Carbon dioxide digital-subtraction angiography (CO2-DSA) is an increasingly adopted technique in endovascular aortic repair (EVAR) and fenestrated/branched EVAR (F/B-EVAR); it is used to reduce the amount of iodinate contrast medium (ICM) and prevent postoperative renal function worsening (PO-RFW). Our aim is to report results from the literature on EVAR and F/B-EVAR procedures using CO2-DSA, together with wider applications in aortic endovascular treatment. Methods: We performed a literature review by searching electronic databases for published data on CO2-DSA during EVAR and F/B-EVAR procedures. The endpoints were postoperative renal function worsening (PO-RFW) and efficacy of intraoperative arterial visualization. Further, applications of CO2 for thoracic endovascular aortic repair (TEVAR) were described. Results: Seventeen studies reporting results on CO2-DSA in EVAR (644 patients) were retrieved. Overall, 372 (58%) procedures were performed with CO2 alone, and 272 (42%) were performed with CO2+ICM. Eight studies analyzed the effect of CO2-DSA angiography on PO-RFW; four studies showed a significantly lower rate of PO-RFW compared to ICM. Five studies (153 patients) analyzed intraoperative arterial visualization with CO2-DSA; renal and hypogastric arteries were effectively visualized in 69% and 99% of cases, respectively. The use of CO2-DSA in F/B-EVAR has not been widely investigated. The largest series reported that PO-RFW was lower in the CO2 vs. ICM group. Conclusions: Carbon dioxide is widely applied in modern aortic endovascular treatment. CO2-DSA for EVAR and F/B-EVAR is an efficient technique for reducing PO-RFW while allowing acceptable arterial intraoperative visualization. Full article
(This article belongs to the Special Issue Aortic Aneurysm: Latest Insights into Therapeutic Approaches)
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13 pages, 2826 KB  
Article
Comparative Evaluation of the Short-Term Outcome of Different Endovascular Aortic Arch Procedures
by Artis Knapsis, Melik-Murathan Seker, Hubert Schelzig and Markus U. Wagenhäuser
J. Clin. Med. 2024, 13(16), 4594; https://doi.org/10.3390/jcm13164594 - 6 Aug 2024
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Abstract
Objectives: There are several endovascular treatment options to treat aortic arch and thoracic aortic pathologies with custom-made or surgeon-modified aortic stent grafts. This study seeks to assess endovascular treatment methods for aortic arch and thoracic aortic pathologies with no acceptable proximal landing [...] Read more.
Objectives: There are several endovascular treatment options to treat aortic arch and thoracic aortic pathologies with custom-made or surgeon-modified aortic stent grafts. This study seeks to assess endovascular treatment methods for aortic arch and thoracic aortic pathologies with no acceptable proximal landing zone for standard thoracic endovascular aortic repair (TEVAR), comparing different treatment methods and evaluating technical success, intraoperative parameters and short-term outcomes. Methods: All patients undergoing elective or emergency endovascular treatment of aortic arch and thoracic aortic pathologies, with no acceptable landing zone for standard TEVAR, between 1 January 2010 and 31 March 2024, at the University Hospital Düsseldorf, Germany were included. An acceptable landing zone was defined as a minimum of 2 cm for sufficient sealing. All patients were not suitable for open surgery. Patients were categorized by an endovascular treatment method for a comprehensive comparison of pre-, intra- and postoperative variables. IBM SPSS29 was used for data analysis. Results: The patient cohort comprised 21 patients, predominantly males (81%), with an average age of 70.9 ± 9 years with no acceptable proximal landing zone for standard TEVAR procedure. The most treated aortic pathologies were penetrating aortic ulcers and chronic post-dissection aneurysms. Patients were sub-grouped according to the applied procedure as follows: five patients with chimney thoracic endovascular aortic repair (chTEVAR), seven patients with in situ fenestrated thoracic endovascular aortic repair (isfTEVAR), six patients with custom-made fenestrated thoracic endovascular aortic repair (cmfTEVAR) and three patients with custom-made branched thoracic endovascular aortic repair (cmbTEVAR). Emergency procedures involved two patients. There were significant differences in the total procedure and fluoroscopy time, as well as in contrast agent usage among the treatment groups. cmfTEVAR had the shortest total procedure time, while chTEVAR exhibited the highest contrast agent usage. The overall mortality rate among all procedures was 9.5% (two patients) and 4.7% for elective procedures, respectively. Deaths were associated with either retrograde type A dissection or stent graft infection. Both patients were treated with chTEVAR. There was one minor and one major stroke; these patients were treated with isfTEVAR. No endoleak occurred during any procedure. The reintervention rate for chTEVAR was 20% and 0% for all other procedures during the in-hospital stay. The patients who were treated with cmfTEVAR had no complications, the shortest operating and fluoroscopy time, and less contrast agent was needed in comparison with other treatment methods. Conclusions: Complex endovascular procedures of the aortic arch with custom-made or surgeon-modified aortic stent grafts offer a safe solution, with acceptable complication rates for patients who are not suitable for open aortic arch repair. In terms of procedure-related parameters and complication rates, a custom-made fenestrated TEVAR is potentially advantageous compared to the other endovascular techniques. Full article
(This article belongs to the Special Issue Thoracic and Thoracoabdominal Aortic Pathologies)
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