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Vascular stent graft

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https://www.readbyqxmd.com/read/28529680/-beyond-saving-lives-current-perspectives-of-interventional-radiology-in-trauma
#1
REVIEW
Anuradha Singh, Atin Kumar, Pawan Kumar, Subodh Kumar, Shivanand Gamanagatti
Interventional radiology (IR) has become an integral part in the management of traumatic injuries. There is an ever-increasing role of IR in traumatic injuries of solid abdominal organs, pelvic and peripheral arteries to control active bleeding by therapeutic embolization or vascular reconstruction using stent grafts. Traditionally, these endovascular treatments have been offered to hemodynamically stable patients. However, in recent times endovascular approach has become preferable to surgery even in hemodynamically unstable patients with injury of surgically difficult-to-access sites...
April 28, 2017: World Journal of Radiology
https://www.readbyqxmd.com/read/28501658/hybridizing-the-sandwich-and-chimney-techniques-in-the-endovascular-repair-of-coarctation-of-the-aortic-arch-and-postcoarctation-ectasia-concomitant-with-a-left-subclavian-artery-aneurysm
#2
Mingguang Zhang, Hao Nie, Xinyu Gui, Jiang Shao, Bao Liu, Yongjun Li, Changwei Liu, Yuehong Zheng
Coarctation of aorta is a rare congenital malformation and is usually accompanied by other cardiac or vascular lesions. In this case we describe a 51-year-old patient presented with coarctation of the aortic arch and postcoarctation ectasia concomitant with a left subclavian artery aneurysm. Endovascular therapy included the deployment of an inverted wedge-shaped covered stent inserted by a long "chimney" stent and another cylinder-covered stent, forming a "sandwich"-like configuration. The symptoms were alleviated after surgery, and no perioperative or stent-graft-related complications were observed at a 2-year follow-up...
May 10, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28499863/innovative-procedure-for-inferior-mesenteric-artery-embolization-using-the-amplatzer-vascular-plug-4-during-endovascular-aneurysm-repair
#3
Noriyasu Morikage, Makoto Samura, Yuriko Takeuchi, Yuya Tanaka, Koshiro Ueda, Takasuke Harada, Osamu Yamashita, Kotaro Suehiro, Kimikazu Hamano
PURPOSE: To present an easy and quick technique for embolization of the inferior mesenteric artery (IMA) during endovascular aneurysm repair (EVAR). TECHNIQUE: We performed IMA embolization using a conventional EVAR device alone with the femoral artery approach during EVAR, which has not been reported previously. First, a 16F or 18F DrySeal Sheath is inserted from the femoral artery into the site around the IMA. Second, cannulation is performed in the IMA with an angiography catheter having a 0...
May 9, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28491182/aortoenteric-fistulae-temporization-and-treatment-lessons-learned-from-a-multidisciplinary-approach-to-3-patients
#4
Jeffrey Forris Beecham Chick, Jordan C Castle, Kyle J Cooper, Ravi N Srinivasa, Jonathan L Eliason, Nicholas H Osborne, Karen M Kim, Wael E Saad, Minhaj S Khaja
Aortoenteric fistulae are life-threatening conditions characterized by abnormal communications between the aorta and gastrointestinal tract. Aortoenteric fistulae may be characterized by the triad of bleeding, abdominal pain, or a pulsatile abdominal mass. Although hemorrhage is the most common presentation, it does not always occur; thus, patients may present with nonspecific symptoms. Computed tomography angiography findings suggestive of aortoenteric fistulae include ectopic gas within or adjacent to the aorta, discontinuity of the aortic wall, bowel wall thickening, and extravasation of contrast into the bowel...
June 2017: Radiology case reports
https://www.readbyqxmd.com/read/28486233/renal-autotransplantation-with-autologous-saphenous-vein-graft-in-a-patient-with-takayasu-arteritis-and-existing-renal-artery-stent-in-her-solitary-kidney
#5
Hakan Bahadir Haberal, Senol Tonyali, Bora Peynircioğlu, Mustafa Arici, Metin Demircin, Fazıl Tuncay Aki
Takayasu arteritis is a disease that results in the granulomatous inflammation of large vessel walls. Takayasu arteritis is generally observed in young females during the second or third decades of life. This disease is treated by the revascularization of the affected organs either by surgery or by endovascular interventions. In this study, we present a case where renal autotransplantation was performed on a lady with an autologous saphenous vein graft subsequent to numerous previous endovascular interventions for her solitary kidney due to Takayasu arteritis-induced renal artery stenosis...
May 10, 2017: Urologia Internationalis
https://www.readbyqxmd.com/read/28479462/iliac-artery-stenting-combined-with-ipsilateral-open-femoro-popliteal-revascularization-and-its-effect-on-bypass-patency
#6
Michele Piazza, Francesco Squizzato, Sandro Lepidi, Mirko Menegolo, Franco Grego, Michele Antonello
OBJECTIVES: In cases of multilevel obstructive atherosclerotic disease, hybrid procedures of concomitant iliac artery stenting and femoro-popliteal bypass (IS-FPB) may represent a valid approach, but results are still unclear. The aim was to evaluate early and long-term outcomes of concurrent IS-FPB. METHODS: This retrospective study included 75 patients (76 limbs) treated with concomitant IS-FPB between January 2010 and June 2016. All patients were prospectively enrolled in a dedicated database...
May 4, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28471523/laparoscopic-surgery-for-elective-abdominal-aortic-aneurysm-repair
#7
REVIEW
Lindsay Robertson, Sandip Nandhra
BACKGROUND: Abdominal aortic aneurysm (AAA) is an abnormal dilatation of the infradiaphragmatic aorta that is equal to or greater than 30 mm or a local dilatation of equal to or greater than 50% compared to the expected normal diameter of the artery. AAAs rarely occur in individuals under 50 years of age, but thereafter the prevalence dramatically increases with age, with men at a six-fold greater risk of developing an AAA than women. Prevalence of AAA has been reported to range from 1...
May 4, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28471151/preliminary-experience-with-the-endurant-ii-short-form-stent-graft-system
#8
Nicola Troisi, Georgios Pitoulias, Stefano Michelagnoli, Giovanni Torsello, Arne Stachmann, Theodosios Bisdas, Yukun Li, Konstantinos P Donas
BACKGROUND: Aim of this study was to evaluate our preliminary experience with the use of the Endurant II short form (IIs) stent-graft in the treatment of abdominal aortic aneurysms (AAAs). METHODS: Between November 2014 and November 2015, 79 patients were consecutively treated with the Endurant IIs stent-graft at 3 European vascular centers. Early (30-day) results in terms of technical success, limb occlusion, major morbidity, and mortality were analyzed. Estimated 1-year outcomes in terms of survival, freedom from type I endoleak, freedom from limb occlusion, and freedom from any device-related reinterventions were assessed with Kaplan- Meyer method...
May 3, 2017: Journal of Cardiovascular Surgery
https://www.readbyqxmd.com/read/28462441/multicenter-european-registry-for-patients-with-aaa-undergoing-evar-evaluating-the-performance-of-the-36-mm-diameter-endurant-stent-graft
#9
Andrés Reyes Valdivia, Georgios Pitoulias, Frank J Criado, Giovanni Torsello, Claudio Gandarias, Martin Austermann, Apostolos G Pitoulias, Konstantinos Donas
INTRODUCTION: The use of and results with the Endurant stent-graft have been reported extensively. However, there has been little if any focus placed on performance and outcomes when a 36-mm-diameter device is used. METHODS: Data were collected and retrospectively analyzed on EVAR patients treated with a 36-mm-diameter Endurant device at 3 European academic vascular centers between 2007 and 2015. Primary endpoints were the absence of type Ia endoleak in the early and mid-term follow-up period, and aneurysm sac stabilization or shrinkage...
May 1, 2017: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/28452874/a-retrievable-rescue-stent-graft-and-radiofrequency-positioning-for-rapid-control-of-noncompressible-hemorrhage
#10
Youngjae Chun, Sung Kwon Cho, William C Clark, William R Wagner, Xinzhu Gu, Amit D Tevar, Ryan M McEnaney
BACKGROUND: Non-compressible hemorrhage of the torso remains a challenging surgical dilemma. Stent graft repair requires endovascular expertise, imaging, and inventory that are not available within the critical window of massive hemorrhage. We developed a retrievable stent graft for rapid hemorrhage. We further investigated a radiofrequency (RF) positioning approach as a possible alternative to the logistics of fluoroscopy. METHODS: A retrievable stent graft was constructed with a novel "petal and stem" design from nitinol and covered with a sleeve of electrospun polyurethane...
April 27, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28447728/high-expression-of-ubiquitin-specific-peptidase-39-is-associated-with-the-development-of-vascular-remodeling
#11
Shuai He, Wei Zhong, Li Yin, Yifei Wang, Zhibing Qiu, Gang Song
Vascular remodeling is the primary cause underlying the failure of angioplasty surgeries, including vascular stenting, transplant vasculopathy and vein grafts. Multiple restenosis‑associated proteins and genes have been identified to account for this. In the present study, the functions of ubiquitin‑specific peptidase 39 (USP39) were investigated in the context of two vascular remodeling models (a mouse common carotid artery ligation and a pig bilateral saphenous vein‑carotid artery interposition graft)...
May 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28433335/treatment-of-peripheral-arterial-disease-via-percutaneous-brachial-artery-access
#12
Randall W Franz, Christopher F Tanga, Joseph W Herrmann
OBJECTIVE: This review was conducted to evaluate the types of endovascular procedures that can be performed via brachial artery access, evaluate the access success rate, and determine the incidence of technical complications. METHODS: A retrospective 10-year record review at a tertiary facility from January 1, 2005, through June 30, 2015, was completed. Patients who underwent attempted brachial artery access were eligible for review. Outcomes intended to be evaluated included ability to access the vessel, reach an identified lesion, and perform an indicated procedure, while describing the incidence and type of complications that occurred to clarify the utility and safety of brachial artery access...
April 19, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28430904/catheter-based-tricuspid-valve-replacement-first-experimental-data-of-a-newly-designed-bileaflet-stent-graft-prosthesis%C3%A2
#13
Henning F Lausberg, Rafal Gryszkiewicz, Maximilian Kuetting, Moritz Baumgaertner, Marcos Centola, Hans-Peter Wendel, Martina Nowak-Machen, David Schibilsky, Tobias Kruger, Christian Schlensak
OBJECTIVES: Moderate or severe degree tricuspid valve regurgitation (TVR) is associated with high rates of morbidity and mortality. Surgical correction as the only therapeutic option offers unsatisfactory results. Recently, several interventional procedures have been introduced clinically in a limited cohort. We present our initial experiments with an innovative interventional valved stent graft for treatment of TVR. METHODS: A newly designed porcine pericardium-covered nitinol stent graft with a lateral bicuspid valve was adapted to size in a cadaver study...
April 18, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28424038/a-novel-method-for-the-treatment-of-bilateral-hypogastric-aneurysms-using-hybrid-polytetrafluoroethylene-graft
#14
Sam Tyagi, D Pineda, H Zheng, M Dougherty, K Calligaro, D Troutman
Open aortic aneurysm repair in the setting of bilateral hypogastric aneurysms is technically challenging. We present a novel technique for open surgical repair for bilateral hypogastric aneurysms using the Gore hybrid vascular graft (GVHG; W. L. Gore and Associates Inc, Flagstaff, Arizona). The GVHG is an expanded polytetrafluoroethylene graft with a nitinol stent at 1 end designed for hemodialysis access. The GVHG has been also been used for aortic debranching and treatment of occlusive disease. We describe the first report using GVHG to repair hypogastric aneurysms...
May 2017: Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/28400219/comparative-effectiveness-of-anticoagulation-on-midterm-infrainguinal-bypass-graft-patency
#15
Nathan L Liang, Donald T Baril, Efthymios D Avgerinos, Steven A Leers, Michel S Makaroun, Rabih A Chaer
OBJECTIVE: Therapeutic anticoagulation (AC) is used clinically for prolongation of infrainguinal bypass patency, but evidence for the efficacy of this practice is conflicting. The objective of our study was to determine the association of AC with bypass graft primary patency. METHODS: Clinical and comorbid data of patients undergoing infrainguinal bypass grafts to a below-knee target with at least 1 year of follow-up performed from 2003 to 2015 were obtained from the Society for Vascular Surgery Vascular Quality Initiative...
April 8, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28400218/outcomes-of-the-japanese-multicenter-viabahn-trial-of-endovascular-stent-grafting-for-superficial-femoral-artery-lesions
#16
Takao Ohki, Kimihiko Kichikawa, Hiroyoshi Yokoi, Masaaki Uematsu, Terutoshi Yamaoka, Koji Maeda, Yuji Kanaoka
OBJECTIVE: The objective of this study was to assess 1-year safety, efficacy, and invasiveness outcomes of endovascular stent grafting of symptomatic long lesions (≥10 cm) in the superficial femoral artery (SFA) as a substitute for above-knee open bypass surgery. METHODS: This prospective, multicenter (15 hospitals) study assessed heparin-coated stent grafts for the treatment of long SFA lesions in Japanese subjects with peripheral arterial disease. Inclusion criteria were Rutherford category 2 to 5 symptoms (grade 5 without active infection), ankle-brachial index ≤0...
April 8, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28371505/compositions-including-synthetic-and-natural-blends-for-integration-and-structural-integrity-engineered-for-different-vascular-graft-applications
#17
REVIEW
Mozhgan Shojaee, Chris A Bashur
Tissue engineering approaches for small-diameter arteries require a scaffold that simultaneously maintains patency by preventing thrombosis and intimal hyperplasia, maintains its structural integrity after grafting, and allows integration. While synthetic and extracellular matrix-derived materials can provide some of these properties individually, developing a scaffold that provides the balanced properties needed for vascular graft survival in the clinic has been particularly challenging. After 30 years of research, there are now several scaffolds currently in clinical trials...
March 29, 2017: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/28366302/results-of-the-valor-ii-trial-of-the-medtronic-valiant-thoracic-stent-graft
#18
Mark F Conrad, James Tuchek, Robert Freezor, Joseph Bavaria, Rodney White, Ronald Fairman
BACKGROUND: The 1-year results of endovascular exclusion of degenerative descending thoracic aortic aneurysms (DTA) with the Valiant Thoracic Stent Graft (Medtronic Vascular, Santa Rosa, Calif) have been previously reported. With long-term follow-up now complete, the 5-year results are reported. METHODS: The VALOR II trial (Evaluation of the Clinical Performance of the Valiant Thoracic Stent Graft System in the Treatment of Descending Thoracic Aneurysms of Degenerative Etiology in Subjects Who Are Candidates for Endovascular Repair) was a prospective, nonrandomized trial of the Valiant Thoracic Stent Graft system in patients with degenerative DTA...
March 30, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28361112/5-years-experience-with-drug-eluting-and-bare-metal-stents-as-primary-intervention-in-transplant-renal-artery-stenosis
#19
Chelsea C Estrada, Muzammil Musani, Frank Darras, Heesuck Suh, Mersema T Abate, Anil Mani, Edward P Nord
BACKGROUND: Transplant renal artery stenosis (TRAS) is a common vascular complication after kidney transplantation and is associated with refractory hypertension, volume overload, and graft injury or loss. This article describes 5-year outcomes of endovascular intervention for TRAS with bare metal and drug eluting stents (DES). METHODS: We investigated, as a prospective cohort study, patient and graft outcomes after the targeted use of DES for vessel diameter less than 5 mm and bare metal stents (BMS) for vessel diameter greater than 5 mm as the primary management for TRAS...
February 2017: Transplantation Direct
https://www.readbyqxmd.com/read/28341510/endovascular-stenting-of-portal-vein-for-graft-rescue-after-a-pancreas-transplant-venous-graft-thrombosis-a-case-report
#20
Ossama M Reslan, Jordan M Kirsch, Hitesh Kaul, Stalin Campos, Radi Zaki, Paul S Brady, Kamran Khanmoradi
Venous thrombosis of pancreas transplant allografts often leads to graft loss. Its worrisome complication and difficult to treat, forming the most common nonimmunological cause of graft loss. Multiple risk factors have been implicated in the development of venous thrombosis of pancreas transplant. Color Doppler ultrasonography (CDUS) enables early diagnosis of venous thrombosis, thus increasing the possibility of graft-rescue treatments. Endovascular management of pancreatic transplant vascular complications are scant and in the form of case reports...
March 21, 2017: Annals of Vascular Surgery
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