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https://www.readbyqxmd.com/read/27916829/in-vitro-study-of-a-superhydrophilic-thin-film-nitinol-endograft-that-is-electrostatically-endothelialized-in-the-catheter-prior-to-the-endovascular-procedure
#1
Mahdis Shayan, Yanfei Chen, Puneeth Shridhar, Colin P Kealey, YoungJae Chun
Electrostatic endothelial cell seeding has evolved as an exceptional technique to improve the efficiency of cell seeding in terms of frequency of attached cells and the amount of cell adhesion for the treatment of vascular diseases. In the recent times, both untreated and superhydrophilic thin film nitinol (TFN) have exhibited strong prospects as substrates for creation of small-diameter endovascular grafts due to their hallmark properties of superelasticity, ultra low-profile character, and grown hemocompatible oxide layer with the presence of a uniform endothelial layer on the surface...
November 29, 2016: Journal of Functional Biomaterials
https://www.readbyqxmd.com/read/27908819/endovascular-treatment-of-a-traumatic-thoracic-aortic-injury-in-an-eight-year-old-patient-case-report-and-review-of-literature
#2
Maen Aboul Hosn, Rachael Nicholson, Joseph Turek, William J Sharp, Luigi Pascarella
Traumatic aortic injuries in children and adolescents are rare. Although endovascular repair has become the preferred approach for such injuries in adults, open repair has endured as the gold standard in children owing mainly to the smaller aortic and access vessel diameter and the scarcity of long term follow up data. We report a successful endovascular repair of a traumatic thoracic aortic injury in an eight year old girl using a Zenith Alpha thoracic endograft (Cook Medical, Bloomington, Ind). We also review the literature on endovascular treatment of traumatic aortic injuries in the pediatric population...
November 28, 2016: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/27908804/custom-made-conical-endograft-in-the-treatment-of-saccular-abdominal-aortic-aneurysms-with-tight-and-calcified-distal-neck-thinking-out-of-the-box
#3
Efstratios Georgakarakos, Christos Argyriou, Nikolaos Schoretsanitis, George S Georgiadis
PURPOSE: to describe the use of the combination of a conical custom-made TREO® (TREO CM) stent-graft in the treatment of a saccular abdominal aortic endograft (AAA) with long but tight and calcified distal neck. TECHNIQUE: A 65-year female patient was treated for a saccular 5.2 cm AAA with a 3cm-long but calcified and tight (16mm) distal neck, precluding the safe use of a bifurcated endograft. Since the patient refused an open surgery, a conical TREO CM endograft was manufactured with 20% proximal oversizing, whereas the 3cm caudal sealing segment demonstrated a conical configuration comprised of a 2cm and 1cm nitinol-supported zones of 20% and 10% oversizing, respectively, in order to avoid excessive strain and incomplete expand at the most distal calcified area, leading ultimately to an insidious infolding and consequent type Ib endoleak...
November 28, 2016: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/27908677/haemodynamic-variations-of-flow-to-renal-arteries-in-custom-made-and-pivot-branch-fenestrated-endografting
#4
J Ou, A Y S Tang, T L Chiu, K W Chow, Y C Chan, S W K Cheng
OBJECTIVE: This study aimed to investigate variation of blood flow to renal arteries in custom-made and pivot branch (p-branch) fenestrated endografting, using a computational fluid dynamics (CFD) technique. METHODS: Idealised models of custom-made and p-branch fenestrated grafting were constructed on a basis of a 26 mm stent graft. The custom-made fenestration was designed with a 6 mm diameter, while the 5 mm depth renal p-branch was created with a 6 mm inner and 15 mm outer fenestration...
November 28, 2016: European Journal of Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/27903485/endovascular-repair-of-thoraco-abdominal-aortic-aneurysm-in-high-surgical-risk-patients-fenestrated-and-branched-endografts
#5
E Gallitto, M Gargiulo, A Freyrie, C Bianchini Massoni, R Pini, C Mascoli, G L Faggioli, S Ancetti, A Stella
AIM: To report early and mid-term results of endovascular repair of thoraco-abdominal aneurysms (TAAA) by using of Cook-Zenith fenestrated/branched endografts (FB-EVAR) in high-surgical risk patients unfit for open repair (OR). METHODS: Between January 2012 and April 2015, all the patients with TAAA, considered at high-surgical risk for OR and treated by Cook-Zenith FB-EVAR, were prospectively enrolled. Patients were studied using a thoraco-abdominal computer tomography angiography (CTA) and dedicated software for advanced vessels analysis...
November 26, 2016: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/27903476/rapid-aneurysmal-sac-expansion-following-endovascular-repair-of-a-dissecting-thoracoabdominal-aneurysm
#6
Pau Bargay-Juan, Teresa Martin-Gonzalez, Rachel Clough, Rafaëlle Spear, Jonathan Sobocinski, Stephan Haulon
Endovascular repair of dissecting thoracoabdominal aneurysms (TAAA) is challenging and often requires multiple procedures. A 61-year-old man with a dissecting type-II TAAA treated first by placement of a thoracic endograft, and subsequently implantation of a fenestrated endograft. Six months postoperatively, a 10mm increase of the aorta was observed. A re-entry tear in left external iliac artery(EIA) was perfusing the false lumen in a retrograde fashion connecting with the endoleak caused by the inferior mesenteric artery and lumbar arteries...
November 26, 2016: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/27903474/functional-assessment-and-evaluation-of-outcome-after-endovascular-therapy-with-coverage-of-the-left-subclavian-artery-in-case-of-blunt-thoracic-aortic-injury
#7
A Gombert, D Kotelis, U M Griepenkerl, G Fraedrich, J Klocker, B Glodny, M J Jacobs, A Greiner, J Grommes
OBJECTIVE: Patients suffering blunt thoracic aortic injury (BTAI) can be treated by use of thoracic endovascular aortic repair (TEVAR). In this setting, the coverage of the left subclavian artery (LSA) is frequently necessary. Nevertheless, the functionality of the upper left extremity after TEVAR had been rarely analyzed. Thus this study intends to underline the safety of TEVAR as well as to determine the functionality of the left arm after coverage of the LSA. METHODS: All patients suffering from BTAI treated by endovascular means in three centers (Aachen [Germany], Maastricht [Netherlands] and Innsbruck [Austria]) between 1996 and 2009 were retrospectively analyzed...
November 26, 2016: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/27903473/treatment-of-type-ii-endoleak-and-aneurysm-expansion-after-evar
#8
Konstantinos G Moulakakis, Christos Klonaris, John Kakisis, Constantine N Antonopoulos, Andreas Lazaris, George S Sfyroeras, George Mantas, Spyridon N Vasdekis, Elias N Brountzos, George Geroulakos
AIM: The management of type II endoleak causing sac enlargement continues to be a topic of debate. The purpose of this study was to examine and compare the outcomes between open surgical technique with sacotomy and suturing of the feeding vessels to interventional embolization in patients with aneurysm sac expansion after EVAR. MATERIAL-METHODS: Inclusion criteria for intervention in patients with prior EVAR and type II endoleak were: asymptomatic expanding aneurysm sac > 5mm between two consecutive follow-up CTA scans, symptomatic aneurysm sac expansion...
November 26, 2016: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/27890848/post-market-clinical-experience-with-the-incraft-aaa-stent-graft-system-for-challenging-access-routes
#9
Masayuki Sugimoto, Giovanni F Torsello, Giovanni B Torsello, Martin Austermann, Arne Stachmann, Theodosios Bisdas
PURPOSE: The INCRAFT system is a new device that has become available in Europe in September 2014 after the announcement of the 2-year results of the INNOVATION trial. However, no data in the "real-world" practice exist. Herein, we report our early series of consecutive patients treated with the INCRAFT after its launch on the market. METHODS: Prospectively collected data of patients enrolled in the INNOVATION trial (group IT) and consecutive patients from CE Mark approval to April 2015 (group CM) were retrospectively evaluated and compared...
November 24, 2016: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/27890845/physician-modified-c3-excluder-endograft-as-the-preferred-solution-to-treat-a-juxtarenal-para-anastomotic-aneurysm
#10
Thibault Couture, Raphaël Coscas, Henri Lamas, Amélie Mlynski, Isabelle Javerliat, Olivier Goeau-Brissonniere, Marc Coggia
PURPOSE: Feasibility and early satisfactory results of physician-modified endografts have been reported. Most reports described the use of Cook Dacron aortic endografts (Cook Medical Inc, Bloomingtion, Ind). However, in some specific anatomic features (short aortic lenght, narrow aorta), use of this device may not appropriate. CASE REPORT: We here report a case of juxtarenal aortic aneuvrysm proximal to a former aortobifemoral graft in a high surgical risk patient...
November 24, 2016: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/27890843/total-endovascular-aortic-repair-in-a-patient-with-marfan-syndrome
#11
Mau Amako, Rafaëlle Spear, Rachel E Clough, Adrien Hertault, Richard Azzaoui, Teresa Martin Gonzalez, Jonathan Sobocinski, Stéphan Haulon
OBJECTIVE: To describe a total endovascular aortic repair with branched and fenestrated endografts in a young patient with Marfan syndrome and a chronic aortic dissection. Open surgery is the gold standard to treat aortic dissections in patients with aortic disease and Marfan syndrome. METHODS: In 2000, a 38-year-old man with Marfan syndrome underwent open ascending aorta repair for an acute type A aortic dissection. One year later, a redo sternotomy was performed for aortic valve replacement...
November 24, 2016: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/27890833/pulse-wave-analysis-after-treatment-of-abdominal-aortic-aneurysms-with-the-ovation-device
#12
Efstratios Georgakarakos, Christos Argyriou, George S Georgiadis, Miltos K Lazarides
BACKGROUND: Ovation Aortic Stent-Graft System is a new device for the endovascular treatment of Abdominal Aortic Aneurysms achieving fixation via a 35-mm long, rigid ancored suprarenal stent and sealing stent at the infrarenal level by a means of a polymer-filling pair of inflatable O-rings which cause narrowing of flow lumen and regional stenosis. Thus, concerns have been raised regarding hemodynamic consequences associated with this new desing . Our preliminary report showed no significant increase of aortic pulse wave velocity (aPWV) immediately after implantation of the Ovation in 3 patients...
November 24, 2016: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/27887853/the-value-of-endografts-in-the-surgical-management-of-arterial-lesions-secondary-to-beh%C3%A3-et-disease
#13
Henghui Yin, Songqi Li, Mian Wang, Zuojun Hu, Jinsong Wang, Chen Yao, Guangqi Chang, Shenming Wang
BACKGROUND: This study summarizes our experience in the surgical management of arterial lesions secondary to Behçet disease (BD) and assesses the value of endografts. METHODS: Data from BD patients with arterial lesions managed surgically in our center from January 1998 to December 2015 were studied retrospectively. Surgical procedures, graft selection, graft-related complications, and retreatments were analyzed. RESULTS: We recruited 33 patients (29 men and 4 women; male-to-female ratio, 7...
November 22, 2016: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/27884944/ruptured-abdominal-aortic-aneurysm-after-endovascular-aortic-aneurysm-repair-thrombosis
#14
Jesse Victory, Syed Ali Rizvi, Enrico Ascher, Anil Hingorani
BACKGROUND: Complete thrombosis of an aortic endograft after an endovascular aortic aneurysm repair is a rare complication. The majority of thrombotic events occur in the iliac limbs. CASE PRESENTATION: We present the case of a patient who presented with acute limb ischemia as the result of a thrombosed infra-renal aortic endograft. After restoration of blood flow to the lower extremities with an axillary to bi-femoral artery bypass, the patient was lost to follow-up...
November 24, 2016: Vascular
https://www.readbyqxmd.com/read/27876520/explaining-endograft-shortening-during-endovascular-repair-of-abdominal-aortic-aneurysms-in-severe-aortoiliac-tortuosity
#15
Kevin Lee, Sajjid Hossain, Maher Sabalbal, Luc Dubois, Audra Duncan, Guy DeRose, Adam H Power
OBJECTIVE: During endovascular aneurysm repair (EVAR), severely tortuous aortoiliac anatomy can alter the deployment and conformability of the endograft. The accuracy of treatment length measurements is commonly recognized to be affected by severe tortuosity. However, the exact mechanism of the postintervention length discrepancy is poorly understood. The objective of this study was to determine the mechanism of how severe aortoiliac tortuosity influences the endograft and native aorta during EVAR and its impact on the distal sealing zone...
November 19, 2016: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/27876371/approaches-for-treatment-of-aortic-arch-aneurysm-a-numerical-study
#16
Asaph Nardi, Idit Avrahami
Aortic arch aneurysm is a complex pathology which requires coverage of one or more aortic arch vessels. In this study we explore the hemodynamic behavior of the aortic arch in aneurysmatic and treated cases with three currently available treatment approaches: Surgery Graft, hybrid Stent-Graft and chimney Stent Graft. The analysis included four models of the time-dependent fluid domains of aneurysmatic arch and of the surgery, hybrid and chimney endovascular techniques. Dimensions of the models are based on typical anatomy, and boundary conditions are based on typical physiological flow...
November 12, 2016: Journal of Biomechanics
https://www.readbyqxmd.com/read/27876124/estimating-the-influence-of-aortic-stent-grafts-after-endovascular-aneurysm-repair-are-we-missing-something
#17
Efstratios Georgakarakos
The implantation of a stiff aortic endograft for endovascular abdominal aneurysm repair (EVAR) has been reported to increase aortic stiffness and pulse wave velocity (PWV), raising potential concern over deterioration of myocardial performance. Yet, additional stiffness indices such as the augmentation index (AIx), reflection magnitude (RM) and changes in augmentation pressure (AP) have not been studied adequately to facilitate and improve our knowledge regarding the ways that EVAR affects central hemodynamics...
December 2016: Medical Hypotheses
https://www.readbyqxmd.com/read/27866781/endovascular-repair-of-thoracoabdominal-aortic-aneurysms-using-fenestrated-and-branched-endografts
#18
Gustavo S Oderich, Mauricio Ribeiro, Leonardo Reis de Souza, Jan Hofer, Jean Wigham, Stephen Cha
PURPOSE: The study purpose was to review the outcomes of patients treated for thoracoabdominal aortic aneurysms using endovascular repair with fenestrated and branched stent-grafts in a single center. METHODS: We reviewed the clinical data of the first 185 consecutive patients (134 male; mean age, 75 ± 7 years) treated for thoracoabdominal aortic aneurysms using fenestrated and branched stent-grafts. Graft design evolved from physician-modified endografts (2007-2013) to off-the-shelf or patient-specific manufactured devices in patients enrolled in a prospective physician-sponsored investigational device exemption protocol (NCT 1937949 and 2089607)...
October 22, 2016: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/27864460/use-of-the-octopus-endograft-technique-to-reconstruct-renovisceral-arteries-arising-from-the-false-lumen-of-a-rapidly-expanding-type-b-aortic-dissection-after-endovascular-repair
#19
Jiang Xiong, Yangyang Ge, Xiaoping Liu, Lijun Wang, Wei Guo
PURPOSE: To describe the use and 6-month outcomes of the octopus endograft technique to reconstruct renovisceral arteries arising from the false lumen (FL) of a type B aortic dissection after thoracic endovascular aortic repair (TEVAR). CASE REPORT: A 46-year-old man post TEVAR for type B aortic dissection was admitted with persistent back pain and a rapidly expanding residual dissection. The celiac and left renal arteries arose from the FL and the superior mesenteric artery from both lumens, with the FL as its main supply...
November 17, 2016: Journal of Endovascular Therapy
https://www.readbyqxmd.com/read/27864459/feasibility-and-technical-aspects-of-proximal-nellix-in-nellix-extension-for-late-caudal-endograft-migration
#20
Esmé J Donselaar, Andrew Holden, Aleksandra C Zoethout, Clark J Zeebregts, Michel M P J Reijnen
PURPOSE: To describe the feasibility and technical aspects of a proximal Nellix-in-Nellix extension to treat caudal stent-graft migration after endovascular aneurysm sealing (EVAS) in the in vitro and in vivo settings. METHODS: In vitro studies were designed (1) to assess inner diameters of Nellix-in-Nellix extensions after postdilation with 12-mm balloons and (2) to test wall apposition in tubes with different diameters using a Nellix-in-Nellix stent-graft that extended out of the original Nellix stent-graft lumen by 10, 20, 30, and 40 mm...
November 17, 2016: Journal of Endovascular Therapy
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