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https://www.readbyqxmd.com/read/28734626/staged-treatment-of-mega-aortic-syndrome-using-the-frozen-elephant-trunk-and-hybrid-thoracoabdominal-repair
#1
Asimakis Gkremoutis, Andreas Zierer, Thomas Schmitz-Rixen, Ali El-Sayed Ahmad, Erhard Kaiser, Michael Keese, Thomas Schmandra
OBJECTIVE: We report our experience with a staged hybrid approach for the treatment of extended aortic disease, also known as "mega aortic syndrome." METHODS: A total of 15 patients (10 male, 5 female) underwent staged repair of the thoracoabdominal aorta, consisting of 3 separate stages (repair of ascending aorta and aortic arch using the frozen elephant trunk technique and hybrid thoracoabdominal repair with debranching of the renovisceral branches and stent graft implantation)...
June 24, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28734429/ascending-aorta-stenting-after-off-pump-aortic-wrapping-in-stanford-a-retrograde-aortic-dissection
#2
Dorian Verscheure, Ramzi Ramadan, Alexandre Azmoun, Julien Guihaire, Claude Angel, Philippe Brenot, Philippe Deleuze
We report 4 cases of off-pump ascending aorta wrapping combined with ascending aorta stenting in retrograde Stanford A acute aortic dissection (SAAD). Since 2008, 18 patients have undergone wrapping of the ascending aorta at our institution. Four patients had a persistent circulating false lumen in the ascending aorta after wrapping, with a threat to the aortic root. We chose an endovascular approach with ascending aorta stenting. Follow-up computed tomography showed a reapplication of the intimal flap in the reinforced aorta...
August 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28724880/immediate-and-long-term-outcomes-of-native-aortic-coarctation-and-postsurgical-aortic-recoarctation-treated-with-stent-implantation-one-center-experience
#3
Sylwia Sulik, Roland Fiszer, Giancarla Scalone, Omar Gomez Monterrosas, Jacek Białkowski, Małgorzata Szkutnik
INTRODUCTION    Stent implantation has become the treatment of choice for native and post surgical recurrence aortic coarctation in adults and adolescents.  OBJECTIVES    This study aimed to compare the immediate and long term outcomes of patients with native aortic coarctation (native CoA) and post-surgical aortic recoarctation (ReCoA) who underwent stent implantation in our center.  PATIENTS AND METHODS    The data of 136 patients with native CoA and ReCoA who underwent stent implantation between May 1999 and December 2016 were retrospectively analyzed...
June 6, 2017: Polish Archives of Internal Medicine
https://www.readbyqxmd.com/read/28712543/influence-of-overlapping-pattern-of-multiple-overlapping-uncovered-stents-on-the-local-mechanical-environment-a-patient-specific-parameter-study
#4
Shuo Wang, Yongxue Zhang, Jiaxuan Feng, Yuan Huang, Aziz Tokgoz, Umar Sadat, Jonathan H Gillard, Qingsheng Lu, Zhongzhao Teng
BACKGROUND: Multiple overlapping uncovered stents (MOUS) system has shown potentials in managing complex aortic aneurysms with side branches involvement. It promotes the development of thrombus by modulating local flow pattern that reduces the wall tension, while maintaining patency of side branches. However the modulation of local hemodynamic parameters depends on various factors that have not been assessed comprehensively. METHODS: Aneurysm 3D geometry was reconstructed based on CT images...
July 5, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/28711399/restrictive-bare-stent-prevents-distal-stent-graft-induced-new-entry-in-endovascular-repair-of-type-b-aortic-dissection
#5
Yang Zhao, Yitian Chen, Mian Wang, Liang Zheng, Zilun Li, Guangqi Chang, Henghui Yin
OBJECTIVE: Distal stent graft-induced new entry (SINE) can occur after thoracic endovascular aortic repair (TEVAR) of type B aortic dissection. This study investigated the mechanism of distal SINE and its prevention using a restrictive bare stent (RBS) technique. METHODS: From January 2013 to December 2014, 68 consecutive type B aortic dissection patients received endovascular repair at our center. The RBS technique was used with distal oversizing (between the diameter of the thoracic stent graft and the descending aorta true lumen diameter at the level of the intended distal edge of the thoracic stent graft) >20%...
July 13, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28710578/four-dimensional-flow-mri-of-stented-versus-stentless-aortic-valve-bioprostheses
#6
Floortje van Kesteren, Laurens W Wollersheim, Jan Baan, Aart J Nederveen, Abdullah Kaya, S Matthijs Boekholdt, Bas A de Mol, Pim van Ooij, R Nils Planken
OBJECTIVES: To evaluate aortic velocity, wall shear stress (WSS) and viscous energy loss (EL) of stented and stentless bioprostheses using 4D flow MRI 1 year after surgical aortic valve replacement. METHODS: For this cross-sectional study 28 patients with stented (n = 14) or stentless (n = 14) bioprosthesis underwent non-contrast-enhanced 4D-flow MRI at 1.5 T. Analyses included a comparison of velocity, WSS and EL in the ascending aorta during peak systole for both spatially averaged values and a comparison of local differences using per-voxel analysis...
July 14, 2017: European Radiology
https://www.readbyqxmd.com/read/28710049/trans-anterior-communicating-artery-primary-stenting-in-acute-tandem-middle-cerebral-artery-internal-carotid-artery-occlusion-due-to-thoracic-aortic-stent-graft
#7
Sergio Nappini, Nicola Limbucci, Giuseppe Leone, Antonio Laiso, Andrea Wlderk, Salvatore Mangiafico
No abstract text is available yet for this article.
July 11, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28709623/endovascular-treatment-of-aortic-arch-aneurysm-with-a-single-branched-double-stage-stent-graft
#8
Augusto D'Onofrio, Michele Antonello, Mario Lachat, David Planer, Andrea Manfrin, Andrea Bagno, David Pakeliani, Franco Grego, Gino Gerosa
No abstract text is available yet for this article.
July 11, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28707350/midterm-to-long-term-safety-and-efficacy-of-self-expandable-nitinol-stent-implantation-for-coarctation-of-aorta-in-adults
#9
Ali Mohammad Haji Zeinali, Mohammad Sadeghian, Shakeel A Qureshi, Payam Ghazi
PURPOSE: Endovascular treatment of coarctation of aorta (CoA) by self-expandable Nitinol stents is one of the recognized treatment methods and may be an alternative to surgery or balloon-expandable stent implantation for CoA but there is little information about midterm to long term results of self-expandable stents. METHODS: Sixty-two patients with CoA (40 men), with a mean age of 30.7 ± 11 years, (range 17-63 years) underwent stent implantation with Optimed self-expandable Nitinol stents between 2005 and 2014...
July 14, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28705446/a-novel-sax-stent-method-in-treatment-of-ascending-aorta-and-aortic-arch-aneurysms-evaluated-by-finite-element-simulations
#10
M C Arokiaraj, M De Beule, G De Santis
OBJECTIVES: A novel stent method to simplify treatment of proximal ascending aorta and aortic arch aneurysms was developed and investigated by finite element analysis. Therapy of ascending aortic and aortic arch aneurysms is difficult and challenging and is associated with various complications. METHODS: A 55mm wide×120mm long stent was designed without the stent graft and the stent was deployed by an endovascular method in a virtual patient-specific aneurysm model...
February 2017: J Med Vasc
https://www.readbyqxmd.com/read/28705406/-quality-standards-for-duplex-ultrasonographic-assessment-duplex-us-of-abdominal-aortic-stent-grafts
#11
A Diard, F Becker, O Pichot
The quality standards of the French Society of Vascular Medicine for the ultrasound assessment of lower limb arteries in vascular medicine practice are based on the principle that these examinations have to meet two requirements: technical know-how (knowledge of devices and methodologies); medical know-how (level of examination matching the indication and purpose of the examination, interpretation and critical analysis of results). OBJECTIVES OF THE QUALITY STANDARDS: To describe an optimal level of examination adjusted to the indication or clinical hypothesis; to establish harmonious practices, methodologies, terminologies, results description and report; to provide good practice reference points and to promote a high quality process...
May 2017: J Med Vasc
https://www.readbyqxmd.com/read/28705072/short-and-long-term-results-after-endovascular-management-of-vascular-complications-during-transfemoral-aortic-valve-implantation
#12
Thomas Heger, Stefanie Strauß, Erwin Blessing, Martin Andrassy, Christian Erbel, Oliver J Müller, Emmanuel Chorianopoulos, Sven Pleger, Florian Leuschner, Grigorios Korosoglou, Raffi Bekeredjian, Hugo A Katus, Britta Vogel
Background Vascular injury and access site complications in the contemporary setting of transcatheter aortic valve implantation (TAVI) are known to be associated with increased mortality and morbidity. The aim of our study was to analyse the feasibility and safety of percutaneous treatment of such vascular complications using a stent graft. Methods Between January 2010 and April 2013, 36 TAVI patients developed severe access site complications and underwent subsequent interventional treatment with a covered stent...
July 14, 2017: Acta Cardiologica
https://www.readbyqxmd.com/read/28701057/treatment-of-serious-complications-following-endovascular-aortic-repair-for-type-b-thoracic-aortic-dissection
#13
Zhao Liu, Yepeng Zhang, Chen Liu, Dian Huang, Ming Zhang, Feng Ran, Wei Wang, Tao Shang, Tong Qiao, Min Zhou, Changjian Liu
Objective This study aimed to describe treatment of serious complications after primary thoracic endovascular aortic repair (TEVAR) in type B aortic dissection. Methods From June 2008 to March 2016, serious complications occurred in 58 patients without Marfan syndrome who received TEVAR for type B aortic dissection. Results Complications included endoleak, distal true lumen collapse, retrograde dissection, stroke, stent-graft (SG) migration and mistaken deployment, lower limb ischaemia, and SG fracture. Treatment included endovascular repair, surgical procedures, or conservative medication...
January 1, 2017: Journal of International Medical Research
https://www.readbyqxmd.com/read/28698423/-early-structural-valve-deterioration-of-trifecta-biological-prosthesis-report-of-a-case
#14
Atsushi Tamura, Takamichi Yoshizaki, Sho Kusadokoro
Trifecta valve is a 3rd-generation, stented bioprosthesis which is made from one bovine pericardial sheet. A 77-years-old male patient had undergone combine aortic valve replacement (AVR) using a 23-mm Trifecta valve and ascending aorta replacement for severe aortic valve regurgitation and ascending aorta aneurysm. The postoperative period was uneventful. However, he presented with dyspnea on effort and severe aortic valve regurgitation 31 months after operation. Re-do AVR with a new bioprosthetic valve was performed via 2nd sternotomy...
July 2017: Kyobu Geka. the Japanese Journal of Thoracic Surgery
https://www.readbyqxmd.com/read/28697941/early-outcomes-of-the-conformable-stent-graft-for-acute-complicated-and-uncomplicated-type-b-aortic-dissection
#15
Ting Zhu, Yi Si, Yuan Fang, Bin Chen, Jue Yang, Junhao Jiang, Jianing Yue, Weiguo Fu
OBJECTIVE: The objective of this study was to evaluate the safety, efficacy, and outcomes of the conformable thoracic endograft (Conformable TAG Thoracic Endoprosthesis [CTAG]; W. L. Gore & Associates, Flagstaff, Ariz) for acute complicated and uncomplicated type B aortic dissection (TBAD). METHODS: Between February and October 2016, 52 consecutive patients with acute complicated or uncomplicated TBAD were treated with a CTAG device. We assessed safety, complications, and device conformability using intraoperative angiography and computed tomography angiography...
July 8, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28697693/pivotal-study-of-a-next-generation-balloon-expandable-stent-graft-for-treatment-of-iliac-occlusive-disease
#16
Jean Bismuth, Bruce H Gray, Andrew Holden, Christopher Metzger, Jean Panneton
PURPOSE: To evaluate the safety and efficacy of a next-generation balloon-expandable stent-graft for the treatment of arterial occlusive disease in patients with de novo or restenotic lesions in the common and/or external iliac arteries. METHODS: A prospective, multicenter, single-arm safety and efficacy study ( ClinicalTrials.gov identifier: NCT02080871) of the VBX Stent Graft for treatment of de novo or restenotic lesions in the iliac arteries was conducted under an Investigational Device Exemption at 26 US sites and 1 New Zealand center...
July 1, 2017: Journal of Endovascular Therapy
https://www.readbyqxmd.com/read/28694402/renal-artery-occlusion-in-the-late-postoperative-period-managed-with-renal-artery-stenting-after-endovascular-abdominal-aortic-aneurysm-repair-and-renal-function-salvage
#17
Mustafa Serkan Karakaş, Necmettin Korucuk, Cemal Kemaloğlu, Refik Emre Altekin, İbrahim Demir
Endovascular aneurysm repair (EVAR) of abdominal aorta is a valuable treatment option in selected patients with abdominal aortic aneurysm. Renal artery occlusion is a serious complication after EVAR and may progress to permanent renal injury requiring hemodialysis. In this report, case of unexpected renal artery occlusion after EVAR treated with renal artery stenting in the late postoperative period is described.
July 2017: Türk Kardiyoloji Derneği Arşivi: Türk Kardiyoloji Derneğinin Yayın Organıdır
https://www.readbyqxmd.com/read/28693049/hybrid-repair-techniques-for-complex-aneurysms-and-dissections-involving-the-aortic-arch-and-thoracic-aorta
#18
Rami Tadros, Scott R Safir, Peter L Faries, Daniel K Han, Rajiv K Chander, James F McKinsey, Michael L Marin, Allan S Stewart, Sharif Ellozy
Aortic aneurysms involving the ascending aorta, aortic arch, and descending thoracic aorta have been a challenging entity to surgically treat for over 60 years. Despite the mortality of the disease, early open surgical procedures also had significant morbidity and mortality. The inherent risk in treating multiple anatomic segments simultaneously led to the innovation of the staged elephant trunk (ET) approach by Borst in 1983. To avoid the thoracotomy and associated complications related to the second stage of the procedure, an endovascular completion paradigm was begun by Volodos in 1991...
July 11, 2017: Surgical Technology International
https://www.readbyqxmd.com/read/28693048/the-use-of-branched-endografts-for-the-aortic-arch-in-the-endovascular-era
#19
Rami O Tadros, Scott R Safir, Peter L Faries, Daniel K Han, Rajiv K Chander, Cherrie Z Abraham, Michael L Marin, Allan S Stewart
The endovascular realm has steadily increased its footing in the treatment of the aorta and all of its territories since the foundational case in 1990 by Parodi. The aortic arch, however, continues to be one of the last bastions for treatment via open surgery, which remains the gold standard. Significant comorbidity and prior cardiac surgery prevent open surgery from being the only preferred option, allowing novel endovascular procedures to be considered. Since 1999, more advanced endovascular systems have been created by companies such as Cook Medical, Bolton Medical, Medtronic, Endospan, Gore Medical, and, recently, Kawasumi...
July 11, 2017: Surgical Technology International
https://www.readbyqxmd.com/read/28691909/fracturing-mechanics-before-valve-in-valve-therapy-of-small-aortic-bioprosthetic-heart-valves
#20
Peter Johansen, Henrik Engholt, Mariann Tang, Rasmus F Nybo, Per D Rasmussen, Jens Erik Nielsen-Kudsk
AIMS: Patients with degraded bioprosthetic heart valves (BHV) who are not candidates for valve replacement may benefit from transcatheter valve-in-valve (VIV) therapy. However, at smaller sized surgical BHV the resultant orifice may become too narrow. To overcome this, the valve frame can be fractured by a high-pressure balloon prior to VIV. However, knowledge on fracture pressures and mechanics are prerequisites. The aim of this study is to identify the fracture pressures needed in BHV, and to describe the fracture mechanics...
July 11, 2017: EuroIntervention
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