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https://www.readbyqxmd.com/read/28449479/early-results-of-the-sorin-%C3%A2-perceval-s-sutureless-valve-systematic-review-and-meta-analysis
#1
Karan Sian, Sheila Li, Daneish Selvakumar, Ross Mejia
BACKGROUND: Minimally invasive aortic valve replacement (MAVR) has demonstrated a benefit with respect to increased patient satisfaction due to minimised pain and earlier recovery. Sutureless valves may benefit MAVR and conventional aortic valve replacement (AVR) by reducing operative times and blood transfusion requirements. The Perceval valve (Sorin, Salluggia, Italy) is a self-expanding prosthesis made from bovine pericardium mounted in a nitinol stent, designed to simplify the implantation of an aortic valve...
March 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28438895/the-casper-carotid-artery-stent-a-unique-all-metal-micromesh-stent-designed-to-prevent-embolic-release
#2
Orlando Diaz, Gloria Lopez, John O F Roehm, Ginna De la Rosa, Fernando Orozco, Rafael Almeida
BACKGROUND: Stroke due to the release of embolic debris during the placement of a stent to correct carotid artery stenosis is a constant procedural and peri-procedural threat. The new all metal Casper stent has been created with two layers of nitinol, the inner layer of which has pores diminutive enough to prevent embolic release. OBJECTIVE: To evaluate the safety, effectiveness, and utility of the double layer nitinol Casper carotid artery stent in the treatment of patients with severe carotid artery stenosis...
April 24, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28436316/first-in-man-experience-of-self-expanding-nitinol-stents-combined-with-drug-coated-balloon-in-the-treatment-of-femoropopliteal-occlusive-disease
#3
Bibombe Patrice Mwipatayi, Kalpa Perera, Ali Daneshmand, Rhys Daniel, Jackie Wong, Shannon D Thomas, Sally A Burrows
Purpose The present study aimed to determine the safety and efficacy of a drug-coated balloon inflated within a thin-strut self-expanding bare-metal stent in patients with severe and complex femoropopliteal occlusive disease. Methods This prospective study used the Pulsar-self-expanding stent and Passeo-18 Lux drug-coated balloon in patients with severe and complex femoropopliteal occlusive disease. The primary endpoint was the 12-month primary patency, and the secondary endpoints included 24-month primary patency, assisted primary patency, secondary patency, and clinically associated target lesion revascularisation...
January 1, 2017: Vascular
https://www.readbyqxmd.com/read/28430904/catheter-based-tricuspid-valve-replacement-first-experimental-data-of-a-newly-designed-bileaflet-stent-graft-prosthesis%C3%A2
#4
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/28428652/percutaneous-stent-placement-for-the-treatment-of-malignant-biliary-obstruction-nitinol-versus-elgiloy-stents
#5
Charles Edouard Zurstrassen, Almir Galvão Vieira Bitencourt, Marcos Duarte Guimaraes, Aline Cristine Barbosa Santos Cavalcante, Chiang Jeng Tyng, Mauricio Kauark Amoedo, João Paulo Kawaoka Matsushita Junior, Janio Szklaruk, Edson Marchiori, Rubens Chojniak
OBJECTIVE: This study aimed to compare two self-expanding stents, a nitinol stent and an elgiloy stent, both placed percutaneously, in terms of their efficacy in palliating inoperable malignant biliary obstruction. MATERIALS AND METHODS: We retrospectively investigated 99 patients with unresectable malignant biliary obstruction treated with percutaneous placement of a self-expanding metallic stent at our institution between May 2007 and January 2010. Serum bilirubin and liver enzyme levels were measured before and 30 days after stenting...
March 2017: Radiologia Brasileira
https://www.readbyqxmd.com/read/28424038/a-novel-method-for-the-treatment-of-bilateral-hypogastric-aneurysms-using-hybrid-polytetrafluoroethylene-graft
#6
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/28419788/the-italian-stallions-of-cli-value-care-delivery
#7
EDITORIAL
Gary M Ansel, Michael R Jaff
Critical Limb ischemia with long segment occlusive disease typically reserved for surgery can be treated with a high degree of success in expert centers via an endovascular approach Nitinol woven stents appear to have high patency with proper deployment in all PAD groups Increased early expense that is associated with decreased re-intervention can be cost effective.
April 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28411099/robot-assisted-transplanted-ureteral-stricture-management
#8
H M Abdul-Muhsin, S B McAdams, R N Nuñez, N N Katariya, E P Castle
OBJECTIVE: To assess the feasibility of robot assisted transplanted ureteral reimplantation as a minimally invasive alternative to open surgery. MATERIAL AND METHODS: Between August 2015 and March 2016, five patients presented with transplanted ureteral strictures after failure of previous endoscopic management. All patients underwent robot assisted ureteral reimplantation. Patients' demographics, perioperative outcomes and complications are reported. RESULTS: All patients presented with deterioration of kidney function with or without recurrent urinary tract infection...
April 11, 2017: Urology
https://www.readbyqxmd.com/read/28389291/a-word-of-caution-for-extra-large-self-expandable-nitinol-stents
#9
Andrés Reyes Valdivia, Africa Duque Santos, Francisco Alvarez Marcos, Asunción Romero Lozano, Julia Ocaña Guaita, Claudio Gandarias Zúñiga
PURPOSE: To report an unsuccessful use of large nitinol stent to prevent proximal endoleak in endograft treatment for juxtarenal aortic aneurysm. CASE REPORT: Male of 82 years old, with coronary disease and severe chronic obstructive pulmonary disease (COPD) requiring oxygen support. A large 80 mm. juxtarenal aneurysm was found on routine urological examination. Neck features were as follows: 7mm and high anterior-posterior angulation. ASA IV was given. Patient wanted to be treated...
April 4, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28377911/distal-femoral-arteriovenous-fistula-with-iliac-vein-thrombosis-after-blunt-trauma
#10
Duk Sil Kim, Sung Wan Kim, Hyun Seok Lee, Kyung Hwan Byun, Michael SungPil Choe
A 39-year-old woman arrived at our emergency department, complaining of severe pain and swelling of her left leg. She had slipped down stairs and injured on her left leg about 3 months ago. Computed tomography angiography showed left distal superficial femoral artery's pseudoaneurysm with arteriovenous fistula and thrombotic occlusion of left common iliac vein. We decided to do endovascular intervention due to severe venous hypertension and chronic inflammation around the fistula. The femoral arteriovenous fistula was closed via stent-graft (7 mm×5, 9 mm×5 cm) deployment...
March 2017: Vascular Specialist International
https://www.readbyqxmd.com/read/28372983/primary-stenting-of-the-superficial-femoral-artery-in-intermittent-claudication-improves-health-related-quality-of-life-abi-and-walking-distance-12-month-results-of-a-controlled-randomised-multicentre-trial
#11
H Lindgren, P Qvarfordt, M Åkesson, S Bergman, A Gottsäter
BACKGROUND: Invasive treatment of intermittent claudication (IC) because of severe atherosclerotic stenosis or occlusion in the superficial femoral artery (SFA) is controversial. This prospective randomised trial was performed to assess the impact on health related quality of life (HRQoL) of primary stenting with nitinol self expanding stents compared with best medical treatment alone in patients suffering from stable IC due to SFA disease. METHODS: One hundred patients with stable IC caused by SFA disease from seven Swedish hospitals treated with best medical treatment (BMT) were randomised to either the stent (n = 48) or the control (n = 52) group...
March 31, 2017: European Journal of Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/28366179/effect-of-self-expanding-carotid-stents-on-plaque-thickness-and-vessel-diameter
#12
Rafael Martínez-Pérez, Graeme Marchuk, Donald H Lee, David M Pelz, Stephen P Lownie
BACKGROUND: In vitro models have suggested that stents affect atherosclerotic plaques symmetrically because of their outward radial forces. We evaluated the effects of stents on carotid plaque and the arterial wall using carotid ultrasound in carotid stenting patients to see whether these effects were borne out in vivo. METHODS: From a carotid stent database, 30 consecutive patients were selected. All had carotid Doppler ultrasound performed pre- and poststenting...
April 3, 2017: Canadian Journal of Neurological Sciences. le Journal Canadien des Sciences Neurologiques
https://www.readbyqxmd.com/read/28351310/one-year-outcomes-of-the-paclitaxel-eluting-self-expanding-stentys-stent-system-in-the-treatment-of-infrapopliteal-lesions-in-patients-with-critical-limb-ischemias
#13
Marc Bosiers, Joren Callaert, Koen Keirse, Jeroen M H Hendriks, Patrick Peeters, Jürgen Verbist, Lieven Maene, Roel Beelen, Koen Deloose
PURPOSE: To investigate the efficacy of the paclitaxel-coated, self-expanding, nitinol Stentys Stent System in tibioperoneal lesions ≤50 mm long. METHODS: The prospective, single-arm, multicenter PES-BTK-70 trial ( ClinicalTrials.gov identifier NCT01630070) evaluated the safety and efficacy of the coronary Stentys Stent System in the treatment of a stenotic or occlusive lesion ≤50 mm long in the tibioperoneal arteries of patients with critical limb ischemia (CLI)...
March 1, 2017: Journal of Endovascular Therapy
https://www.readbyqxmd.com/read/28351226/fracture-of-a-supera-interwoven-nitinol-stent-after-treatment-of-popliteal-artery-stenosis
#14
Tommaso Cambiaghi, Andrea Spertino, Luca Bertoglio, Roberto Chiesa
PURPOSE: To present a Supera stent fracture following treatment of popliteal artery stenosis. CASE REPORT: A 60-year-old man previously treated with angioplasty/stenting of a popliteal artery lesion with a Supera stent presented at 8 months with in-stent occlusion that proved to be secondary to stent fracture. CONCLUSION: Supera interwoven nitinol stents, despite having higher radial force and conformability than classic tube stents, are not free from fracture...
March 1, 2017: Journal of Endovascular Therapy
https://www.readbyqxmd.com/read/28351208/angiographic-dissection-patterns-and-patency-outcomes-after-balloon-angioplasty-for-superficial-femoral-artery-disease
#15
Masahiko Fujihara, Mitsuyoshi Takahara, Shinya Sasaki, Kiyonori Nanto, Makoto Utsunomiya, Osamu Iida, Yoshiaki Yokoi
PURPOSE: To investigate the angiographic dissection patterns after balloon angioplasty for superficial femoral artery (SFA) lesions, the clinical outcome associated with each dissection pattern, and the predictive factors for severe dissection. METHODS: A retrospective, multicenter analysis examined 621 patients (mean age 72.8±9.5 years; 414 men) with 748 symptomatic de novo SFA lesions treated with endovascular therapy. Vessel dissection after the initial balloon angioplasty procedure was graded into 7 types according to a modified version of the coronary artery classification types A to F...
March 1, 2017: Journal of Endovascular Therapy
https://www.readbyqxmd.com/read/28316867/bench-top-comparison-of-physical-properties-of-4-commercially-available-self-expanding-intracranial-stents
#16
Su-Hee Cho, Won-Il Jo, Ye-Eun Jo, Ku Hyun Yang, Jung Cheol Park, Deok Hee Lee
PURPOSE: To better understand the performance of four commercially available neurovascular stents in intracranial aneurysm embolization, the stents were compared in terms of their basic morphological and mechanical properties. MATERIALS AND METHODS: Four different types of stents that are currently being used for cerebral aneurysm embolization were prepared (two stents per type). Two were laser-cut stents (Neuroform and Enterprise) and two were braided from a single nitinol wire (LEO and LVIS stents)...
March 2017: Neurointervention
https://www.readbyqxmd.com/read/28303688/patient-level-meta-analysis-of-999-claudicants-undergoing-primary-femoropopliteal-nitinol-stent-implantation
#17
Krishna J Rocha-Singh, Joshua A Beckman, Gary Ansel, Sean P Lyden, Peter Schneider, Manish Mehta, Michael Dake, Christopher M Mullin, Michael R Jaff
CONDENSED ABSTRACT: The factors that impact the clinical effectiveness of bare nitinol stents in claudicants with symptomatic femoropopliteal atherosclerosis are incompletely known. The authors analyzed variables that may influence stent durability and provide a benchmark for their effectiveness. Data analyzed from six studies (999 patients) included baseline noninvasive hemodynamic tests, angiographic characteristics, ultrasound defined stent patency and target lesion revascularization through 12-months...
March 17, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28301310/glass-fiber-based-mr-safe-guidewire-for-mr-imaging-guided-endovascular-interventions-in-vitro-and-preclinical-in-vivo-feasibility-study
#18
Alexander Massmann, Arno Buecker, Guenther K Schneider
Purpose To evaluate glass-fiber-based guidewires that are safe for magnetic resonance (MR) imaging-guided endovascular interventions by using a phantom and an in vivo swine model. Materials and Methods MR imaging-safe guidewires were made from micropultruded glass and/or aramid fibers and epoxy resin with diameters of 0.89 mm (0.035 inch) for standard and stiff guidewires and 0.36 mm (0.014 inch) for micro guidewires. MR imaging visibility and mechanical properties were assessed in a pulsatile flow model. After approval was obtained from the institutional animal care and use committee, MR imaging guidewires were evaluated for standard endovascular procedures in nine pigs...
March 14, 2017: Radiology
https://www.readbyqxmd.com/read/28301016/deflection-and-flexural-strength-effects-on-the-roughness-of-aesthetic-coated-orthodontic-wires
#19
Cibele Gonçalves de Albuquerque, Américo Bortolazzo Correr, Giovana Cherubini Venezian, Milton Santamaria, Carlos Alberto Tubel, Silvia Amélia Scudeler Vedovello
The aim was to evaluate the flexural strength and the effects of deflection on the surface roughness of esthetic orthodontic wires. The sample consisted of 70 archwire 0.014-inch: polytetrafluorethylene (PTFE)-coated Nickel-Titanium (Niti) archwires (Titanol Cosmetic-TC, Flexy Super Elastic Esthetic-FSE, esthetic Nickel Titanium Wire-ANT); epoxy resin-coated Niti archwires (Spectra-S, Niticosmetic-TEC); gold and rhodium coated Niti (Sentalloy-STC) and a control group (superelastic Niti (Nitinol-NS). The initial roughness was evaluated with a rugosimeter...
January 2017: Brazilian Dental Journal
https://www.readbyqxmd.com/read/28290164/risk-factors-for-permanent-pacemaker-after-implantation-of-surgical-or-percutaneous-self-expanding-aortic-prostheses
#20
Emmanuel Villa, Alberto Clerici, Antonio Messina, Luca Testa, Francesco Bedogni, Andrea Moneta, Francesco Donatelli, Giovanni Troise
BACKGROUND: The use of transcatheter aortic valve implantation (TAVI) following the introduction of Nitinol autoexpandable devices has spread rapidly during recent years. In addition, cardiac surgery has been revolutionized due to the use of Nitinol-based sutureless prostheses for aortic valve replacement (AVR). During the same period, however, permanent pacemaker (PPM) implantation has emerged as a frequent complication. The study aim was to identify the risk factors of PPM following the implantation of a Nitinol self-expanding prosthesis (for AVR or TAVI)...
November 2016: Journal of Heart Valve Disease
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