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Venous graft stents

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https://www.readbyqxmd.com/read/29349400/single-session-total-endovascular-iliocaval-reconstruction-with-stent-grafting-for-the-treatment-of-inferior-vena-cava-agenesis-and-concurrent-iliac-venous-aneurysm-rupture
#1
Jeffrey Forris Beecham Chick, Minhaj S Khaja, Steven Han, Kyle J Cooper, J Matthew Meadows, David M Williams
Iliac venous aneurysms are rare vascular abnormalities that may be manifested by abdominal masses, pelvic tenderness, or hypovolemia and may lead to rupture, thrombosis, pulmonary embolism, paradoxical embolism, or death. Inferior vena cava agenesis, like venous aneurysm, is an uncommon condition that may present with deep venous thrombosis. This report describes a patient with inferior vena cava agenesis and iliac venous aneurysm rupture treated with emergent iliocaval reconstruction and endovascular stent graft placement...
September 2017: Journal of Vascular Surgery Cases and Innovative Techniques
https://www.readbyqxmd.com/read/29327570/the-detour-procedure-no-more-need-for-conventional-bypass-surgery
#2
Dainis Krievins, Janis Savlovskis, Natalija Ezite, Andrew Hill, Kaspars Kisis, Marcis Gedins, Edgars Zellans, Andrew Holden
BACKGROUND: Long segment occlusive disease in the superficial femoral artery remains a treatment challenge despite advances in open surgical and endovascular approaches. We report initial clinical results of an entirely new procedure to perform femoropopliteal bypass using the DETOUR System to create a stentgraft bypass which originates in the SFA, travels through the femoral vein, and ends in the popliteal artery, bypassing the diseased segment. METHODS: Review the initial results of the first five patients at a single site enrolled in IRB-approved, prospective clinical study using the DETOUR System...
January 9, 2018: Journal of Cardiovascular Surgery
https://www.readbyqxmd.com/read/29258706/balloon-angioplasty-versus-stenting-for-the-treatment-of-failing-arteriovenous-grafts-a-meta-analysis
#3
REVIEW
George N Kouvelos, Konstantinos Spanos, George A Antoniou, Ioannis Vassilopoulos, Christos Karathanos, Miltiadis I Matsagkas, Athanasios D Giannoukas
PURPOSE: To assess the outcomes of plain balloon angioplasty versus stenting for the treatment of failed or malfunctioning chronic haemodialysis arteriovenous grafts (AVGs). METHODS: A systematic search of the literature was undertaken using the PUBMED, EMBASE, and Cochrane databases from January 2000 to September 2016 for articles comparing balloon angioplasty versus stenting in the management of failed or malfunctioning chronic haemodialysis AVGs. Results are reported as OR and 95% CI...
December 16, 2017: European Journal of Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/29228235/the-potential-role-of-external-venous-supports-in-coronary-artery-bypass-graft-surgery
#4
Jamie A Mawhinney, Craig A Mounsey, David P Taggart
Despite the apparent superiority of arterial conduits for coronary artery bypass grafting (CABG), the long saphenous vein remains the most commonly used graft. The high failure rate of long saphenous vein grafts (SVGs) over time is therefore an important limiting factor for the long-term outcomes of CABG. Various methods to improve SVG patency have been proposed, although few have had a significant impact on clinical practice. External SVG supports have been a focus of research over the past 50 years, with their use intended to minimize well-documented pathophysiological changes that occur in the SVG following implantation into the coronary circulation...
December 8, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/29216531/living-donor-liver-transplantation-for-adult-budd-chiari-syndrome-resection-without-replacement-of-retrohepatic-ivc-a-case-report
#5
Tarek Abdelazeem Sabra, Hideaki Okajima, Tetsuya Tajima, Ken Fukumitsu, Koichiro Hata, Kentaro Yasuchika, Toshihiko Masui, Kojiro Taura, Toshimi Kaido, Shinji Uemoto
INTRODUCTION: Suprahepatic caval resection and replacement of inferior vena cava (IVC) is standard procedure in deceased donor liver transplantation for patients with Budd-Chiari syndrome (BCS). However, replacement of IVC in living donor liver transplantation (LDLT) is difficult. We report a case of BCS successfully treated by LDLT without replacement of IVC. PRESENTATION OF CASE: A 52-years-old female with a primary BCS due to IVC thrombosis. A vena cava (VC) stent placed after angioplasty without improvement of the hepatic, portal venous flow and liver functions, Transjugular intrahepatic portosystemic shunt was considered and the patient had a rapid deterioration and increased ascites...
December 1, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/29206088/hepatic-venous-outflow-obstruction-after-living-donor-liver-transplant-single-center-experience
#6
Suleyman Koc, Sami Akbulut, Vural Soyer, Mehmet Yilmaz, Bora Barut, Ramazan Kutlu, Sezai Yilmaz
OBJECTIVES: In this study, we share our approach for care of patients with hepatic venous outlet obstruction after living-donor liver transplant. MATERIALS AND METHODS: We retrospectively examined the demographic, clinical, and radiologic data of 35 patients who developed hepatic venous outlet obstruction after living-donor liver transplant. Patients were subgrouped on the basis of onset (8 patients with early onset [< 30 days posttransplant] and 27 patients with late onset [≥ 30 days posttransplant]) and postoperative survival (24 survivors, 11 nonsurvivors)...
December 5, 2017: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/29190228/hepatic-venous-outflow-stenosis-after-auxiliary-left-hemiliver-transplantation-diagnosed-by-ultrasonic-shear-wave-elastography-combined-with-doppler-ultrasonography
#7
Jia-Wu Li, Qiang Lu, Yan Luo
Hepatic vein stenosis after liver transplantation is a relatively rare complication that could even result in graft loss. However, it is difficult to arrive at a definite diagnosis at the early stage of postoperation, and there are few researches on ultrasonic shear wave elastography in the diagnosis of hepatic vein stenosis. We report the case of an 11-year-old male patient with cirrhosis due to hepatolenticular degeneration who received an auxiliary left hemiliver graft from his uncle. Massive ascites developed in 4 days after the operation...
December 2017: Ultrasound Quarterly
https://www.readbyqxmd.com/read/29189831/-newer-generation-self-expandable-coronary-stent-bail-out-re-sheathing
#8
Alberto Barioli, Massimo Napodano, Giuseppe Tarantini
Newer generation of self-expandable nitinol coronary stents has proven to be useful in the treatment of bifurcations, tapered vessels, thrombotic lesions, venous grafts and ectatic segments. However, optimal device positioning can be cumbersome, due to the peculiar delivery mechanism which consists of retracting an outer sheath in order to release the stent from the distal edge. We report the case of a 53-year-old man, admitted for unstable angina. Coronary angiography showed a tight stenosis of the proximal left anterior descending coronary artery...
December 2017: Giornale Italiano di Cardiologia
https://www.readbyqxmd.com/read/29163957/new-therapeutic-options-provided-by-off-label-deployment-of-stent-graft-for-tailored-arteriovenous-access-salvage-two-cases
#9
Riccardo Corti, Pietro Quaretti, Franco Galli, Lorenzo Paolo Moramarco, Nicola Cionfoli, Giovanni Leati, Riccardo Corbetta, Matteo Tozzi
A tailored therapy to patient requirements by combining endovascular and surgical steps can be necessary to prolong the life of a vascular access. Stent grafts play a growing role for the therapy of dialytic access complications. Randomized multi-center trials, however, support the on-label use of stent grafts in the treatment of graft venous outflow and in-stent restenosis. The main contraindication to their use is an ongoing infection. We report two cases of new off-label application of Viabahn (Gore, flagstaff, USA) stent graft...
2017: SAGE Open Medical Case Reports
https://www.readbyqxmd.com/read/29117811/a-new-endovascular-technique-for-the-treatment-of-dialysis-associated-steal-syndrome
#10
Enrico Ascher, Jacob E Mandel, Natalie A Marks, Anil P Hingorani
Background Dialysis access-associated steal syndrome is a major complication of arteriovenous fistula creation whereby the low-resistance venous conduit shunts arterial inflow through the anastomosis, resulting in clinically significant distal artery insufficiency. Herein, we describe a case of severe steal phenomenon with gangrene of a digit following placement of an arteriovenous fistula that was treated with a novel, entirely endovascular technique. To our knowledge, this was the first totally endovascular approach to dialysis access-associated steal syndrome...
January 1, 2017: Vascular
https://www.readbyqxmd.com/read/29062615/venous-stent-migration-into-right-ventricle
#11
Menfil Orellana-Barrios, Nachiket Patel, Aliakbar Arvandi, Ralph Paone, Dixon Santana
Venous stents (VS) are used to treat central and peripheral stenoses. Stent embolization into a cardiac chamber is a rare, yet serious complication. We present a case of a 61-year-old man with a recently stented arteriovenous graft venous stenosis who developed VS migration into the right ventricle, associated with S. aureus bacteremia.
August 19, 2017: Curēus
https://www.readbyqxmd.com/read/29026877/prolonged-delayed-renal-graft-function-secondary-to-venous-hypertension
#12
Suraj Mishra, Gaurav Gupta, I Moinuddin, Brian Strife, Uma Prasad, D Massey, Anne King, Dhiren Kumar, Chandra S Bhati
The case of a 39-year-old highly sensitized woman who underwent second renal transplantation after being on warfarin because of a history of frequent thromboses of her left femoral arteriovenous graft (AVG) is reported here. The patient received a flow cytometric positive crossmatch kidney transplant from a deceased donor. Her posttransplant course was complicated by prolonged delayed graft function (DGF) lasting for 9 months. Antibody-mediated rejection occurred in the immediate postoperative period. This resolved after treatment, and resolution was confirmed by repeat biopsy...
October 2017: Transplantation Direct
https://www.readbyqxmd.com/read/28925086/optimizing-hepatic-venous-outflow-reconstruction-for-hepatic-vein-stenosis-with-indwelling-stent-in-living-donor-liver-retransplantation
#13
Takanobu Shigeta, Seisuke Sakamoto, Kengo Sasaki, Hajime Uchida, Soichi Narumoto, Akinari Fukuda, Mureo Kasahara
The patient was a boy of 7 years and 5 months of age, who underwent LDLT for acute liver failure at 10 months of age. HV stent placement was performed 8 months after LDLT because of intractable HV stenosis. At 7 years of age, his liver function deteriorated due to chronic rejection. The patient therefore underwent living donor liver retransplantation from his father. The HV was transected with the stent in situ. The IVC was resected due to stenosis. The pericardial cavity was opened and detached around the IVC to elongate the IVC...
September 18, 2017: Pediatric Transplantation
https://www.readbyqxmd.com/read/28923652/orthotopic-kidney-transplantation-in-the-rat-with-the-use-of-a-sleeve-arterial-anastomosis-method-and-a-modified-stenting-technique-for-renal-veins
#14
Z-D Jin, L-N Xue, L-S Peng
BACKGROUND: We describe a simple and reliable orthotopic kidney transplantation method in rats with the use of sleeve arterial anastomosis and a modified stenting technique for anastomosis of the renal vein (RV). METHODS: Male Fischer and Lewis rats were used as kidney donors and recipients, respectively, and their left kidneys were harvested in situ. In the control rats (n = 30), the renal artery (RA) and RV anastomoses were performed end-to-end with interrupted sutures by means of the conventional technique...
October 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28890059/covered-stent-grafts-for-acquired-arterial-venous-fistulas-a-case-series
#15
Timur P Sarac, Lina Vargas, Vikram Kashyap, Jonathan Cardella, Cassius Ochoa Chaar
INTRODUCTION: Stent grafts have become the preferred method for treating abdominal aortic aneurysms (AAAs), but also have utility in treating other vasculopathies. In 2005, peripheral stent grafts were approved for treating superficial femoral artery (SFA) occlusive disease. This report describes our experience using covered stent grafts to treat acquired arterial venous fistulae (aAVF). METHODS: We reviewed the records of patients treated for aAVF with covered stent grafts...
September 7, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28782911/simulation-of-aortopulmonary-collateral-flow-in-fontan-patients-for-use-in-prediction-of-interventional-outcomes
#16
Petter Frieberg, Pia Sjöberg, Johan Revstedt, Einar Heiberg, Petru Liuba, Marcus Carlsson
PURPOSE: Patients with complex congenital heart disease may need to be converted to a Fontan circulation with systemic venous return surgically connected to the pulmonary circulation. These patients frequently form aortopulmonary collaterals (APC), that is arterial inflows to the pulmonary artery vascular tree. The aim of this study was to develop a method to calculate the effect of APC on the pulmonary flow distribution based on magnetic resonance imaging (MRI) measurements and computational fluid dynamics simulations in order to enable prediction of interventional outcomes in Fontan patients...
August 7, 2017: Clinical Physiology and Functional Imaging
https://www.readbyqxmd.com/read/28762638/principles-of-treating-enlarging-pseudoaneurysm-in-a-dialysis-arteriovenous-graft
#17
Daniel V Patel, Tushar J Vachharajani
The arteriovenous graft (AVG) is one of the major types of permanent vascular access used to provide hemodialysis. Complications encountered with AVG use include stenosis, infection, thrombosis, and pseudoaneurysm formation. Venous outflow stenosis along with frequent needle cannulation at the same site can lead to breakdown of the graft material, resulting in pseudoaneurysm formation. In the following case, we illustrate common management principles used to treat pseudoaneurysms. While stent-grafts have been utilized for pseudoaneurysm repair, stent-graft usage is not always optimal...
August 1, 2017: Hemodialysis International
https://www.readbyqxmd.com/read/28700180/-superior-cava-vein-stenosis-in-a-hemodialysis-patient-with-long-term-central-venous-catheter-and-vascular-graft-a-case-report
#18
Carlo Jovane, Piera Farfaglia, Anna Maria Ierardi, Laura Rimoldi, Elisabetta Sogni, Carmela Figliola, Daniela Pogliani, Matteo Tozzi, Elena Caramella, Pasquale Esposito, Alessandro Castiglioni
Recently, the use of central venous catheters (CVC) as a vascular access in patients undergoing hemodialysis is significantly increased, mainly because of the aging of this population and the presence of several comorbidities. However, the implantation and the long stay of CVC are associated with many complications. Among them, central venous stenosis represents one of the most common problems that, if not properly diagnosed, could lead to vascular thrombosis and consequent vascular access malfunction. Here, we report a case of a 38-year-old patient, who underwent hemodialysis firstly by a CVC long-term into right jugular vein and then by a prosthetic fistula in the ipsilateral limb...
June 2017: Giornale Italiano di Nefrologia: Organo Ufficiale Della Società Italiana di Nefrologia
https://www.readbyqxmd.com/read/28680585/pulmonary-thromboendarterectomy-in-the-setting-of-a-mediastinal-venous-malformation-with-a-congenitally-absent-left-subclavian-vein
#19
Vickram Tejwani, Karunakaravel Karuppasamy, Marcelo P Gomes, Abraham Levitin, James M Luethke, Christopher J Morin, Nicholas G Smedira, Gustavo A Heresi, Wayne F Yakes
Venous malformations have static venous lakes that predispose to spontaneous venous thrombosis within the malformation due to its low-flow static state. Thrombi of varying sizes can then embolize continually into the pulmonary arterial circulation, and occlude and narrow elastic pulmonary arteries causing chronic thromboembolic pulmonary hypertension (CTEPH). Pulmonary thromboendarterectomy (PTE) is potentially curative in CTEPH, but has not been previously reported in the setting of mediastinal and chest wall venous malformations...
March 2017: Pulmonary Circulation
https://www.readbyqxmd.com/read/28642109/neoaortic-xenoprosthetic-grafts-for-treatment-of-mycotic-aneurysms-and-infected-aortic-grafts
#20
Chukwudubem Anibueze, Visesh Sankaran, Umar Sadat, Kelvin Tan, Yvonne G Wilson, Robert E Brightwell, Michael S Delbridge, Philip W Stather
BACKGROUND: There is no international consensus regarding the optimum management of infected aortae (mycotic aneurysms, infected aortic grafts). Neoaortoiliac reconstruction has advantages over extra-anatomical bypass grafting; however, the use of autologous vein is associated with venous hypertension and compartment syndrome, alternatively cadaveric homografts are associated with high rates of perianastomotic hemorrhage, limb occlusion, and pseudoaneurysm. Arterial repair using xenoprosthetic patches is associated with lower infection rates compared to the use of prosthetic material...
June 20, 2017: Annals of Vascular Surgery
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