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https://www.readbyqxmd.com/read/28815378/effect-of-aging-on-mechanical-stresses-deformations-and-hemodynamics-in-human-femoropopliteal-artery-due-to-limb-flexion
#1
Anastasia Desyatova, Jason MacTaggart, Rodrigo Romarowski, William Poulson, Michele Conti, Alexey Kamenskiy
Femoropopliteal artery (FPA) reconstructions are notorious for poor clinical outcomes. Mechanical and flow conditions that occur in the FPA with limb flexion are thought to play a significant role, but are poorly characterized. FPA deformations due to acute limb flexion were quantified using a human cadaver model and used to build a finite element model that simulated surrounding tissue forces associated with limb flexion-induced deformations. Strains and intramural principal mechanical stresses were determined for seven age groups...
August 16, 2017: Biomechanics and Modeling in Mechanobiology
https://www.readbyqxmd.com/read/28795488/angiographic-classification-of-patterns-of-restenosis-following-femoropopliteal-artery-intervention-a-proposed-scoring-system
#2
Lawrence A Garcia, Krishna J Rocha-Singh, Prakash Krishnan, Thomas Zeller, Gunnar Tepe, Mark Fleming, Juan F Granada, Mark A Turco, Christopher Tieché, Michael R Jaff
OBJECTIVES: To propose a classification system for characterizing angiographic femoropopliteal artery restenosis patterns associated with common endovascular modalities. BACKGROUND: Peripheral artery disease is a worldwide issue affecting millions of people. Despite a myriad of endovascular technologies available to treat peripheral artery disease of the femoropopliteal arteries, restenosis remains a common failure mode. Characterizing common patterns of restenosis is important to discern the potential impact of baseline patient, lesion, and procedural characteristics, as well as treatment modalities on either the primary success or the failure patterns associated with restenosis...
August 10, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28795481/robotic-technology-in-interventional-cardiology-current-status-and-future-perspectives
#3
Ehtisham Mahmud, Ali Pourdjabbar, Lawrence Ang, Omid Behnamfar, Mitul P Patel, Ryan R Reeves
Robotic technology has been utilized in cardiovascular medicine for over a decade, and over that period, its use has been expanded to percutaneous coronary and peripheral vascular interventions. The safety and feasibility of robotically assisted percutaneous cardiovascular interventions has been demonstrated in studies including simple to complex coronary lesions, and both iliac and femoropopliteal lesions. These reports have shown that robotically assisted PCI significantly reduces operator exposure to harmful ionizing radiation without a detrimental effect on procedural success or clinical efficacy...
August 10, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28780037/drug-coated-balloons-for-treatment-of-femoropopliteal-disease-a-step-toward-an-elusive-goal
#4
EDITORIAL
Ivan P Casserly
No abstract text is available yet for this article.
July 27, 2017: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28780030/the-24-month-results-of-the-lutonix%C3%A2-global-sfa-registry-worldwide-experience-with%C3%A2-lutonix%C3%A2-drug-coated-balloon
#5
Marcus Thieme, Peter Von Bilderling, Christian Paetzel, Dimitrios Karnabatidis, Julio Perez Delgado, Michael Lichtenberg
OBJECTIVES: The Global SFA Registry sought to assess safety, clinical benefit, and outcomes of the Lutonix 035 drug-coated balloon (DCB) in a heterogeneous, real-world patient population at 12 and 24 months. BACKGROUND: Numerous clinical studies have evaluated the use of angioplasty for revascularization of femoropopliteal arteries in peripheral arterial disease with restenosis rates of 40% to 60% at 6 to 12 months. Data from recent studies document decreased restenosis rates and improvement in patency in patients receiving angioplasty of femoropopliteal arteries with DCBs...
July 27, 2017: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28766400/transvenous-intravascular-ultrasound-guided-endovascular-treatment-for-chronic-total-occlusion-of-infrainguinal-arteries
#6
Yasuhiro Takahashi, Taisuke Sato, Hirotake Okazaki, Ayaka Nozaki, Masato Matsushita, Masataka Kamiya, Wataru Shimizu
PURPOSE: To investigate the 1-year outcomes of transvenous intravascular ultrasound (IVUS)-guided endovascular therapy (EVT) for chronic total occlusion (CTO) of the lower extremity arteries. METHODS: Transvenous IVUS-guided EVT was performed in 44 patients (50 limbs) with CTO of the femoropopliteal arteries or tibioperoneal trunk. Treatment involved crossing a guidewire through the CTO under the guidance of both fluoroscopic and IVUS imaging, along with insertion of the IVUS catheter into a vein parallel to the target artery...
August 1, 2017: Journal of Endovascular Therapy
https://www.readbyqxmd.com/read/28765738/baseline-characteristics-of-a-retrospective-patient-cohort-in-the-korean-vascular-intervention-society-endovascular-therapy-in-lower-limb-artery-diseases-k-vis-ella-registry
#7
Young-Guk Ko, Chul-Min Ahn, Pil-Ki Min, Jae-Hwan Lee, Chang-Hwan Yoon, Cheol Woong Yu, Seung Whan Lee, Sang-Rok Lee, Seung Hyuk Choi, Yoon Seok Koh, In-Ho Chae, Donghoon Choi
BACKGROUND AND OBJECTIVES: The Korean Vascular Intervention Society Endovascular Therapy in Lower Limb Artery Diseases (K-VIS ELLA) Registry is a multicenter observational study with retrospective and prospective cohorts of patients with lower extremity peripheral artery disease (PAD) undergoing endovascular treatment. In this study, we report the baseline characteristics of this retrospective cohort. SUBJECTS AND METHODS: In the present study we analyzed datasets of 3073 patients with 3972 target limbs from a retrospective cohort treated with endovascular therapy in 31 Korean hospitals...
July 2017: Korean Circulation Journal
https://www.readbyqxmd.com/read/28762154/the-aortic-bifurcation-angle-as-a-factor-in-application-of-the-outback-for-femoropopliteal-lesions-in-ipsilateral-versus-contralateral-approaches
#8
Daniel Raskin, Boris Khaitovich, Shmuel Balan, Daniel Silverberg, Moshe Halak, Uri Rimon
PURPOSE: To assess the technical success of the Outback reentry device in contralateral versus ipsilateral approaches for femoropopliteal arterial occlusion. MATERIALS AND METHODS: A retrospective review of patients treated for critical limb ischemia (CLI) using the Outback between January 2013 and July 2016 was performed. Age, gender, length and site of the occlusion, approach site, aortic bifurcation angle, and reentry site were recorded. Calcification score was assigned at both aortic bifurcation and reentry site...
July 31, 2017: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/28760325/commentary-on-a-pilot-study-of-femoropopliteal-artery-revascularisation-with-a-low-dose-paclitaxel-coated-balloon-is-predilatation-necessary
#9
N Chakfé
No abstract text is available yet for this article.
July 28, 2017: European Journal of Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/28759652/sleep-apnoea-is-common-in-severe-peripheral-arterial-disease
#10
Nadjib Schahab, Sarah Sudan, Christian Schaefer, Vedat Tiyerili, Martin Steinmetz, Georg Nickenig, Dirk Skowasch, Carmen Pizarro
BACKGROUND: Atherosclerotic conditions have been demonstrated to be associated with sleep- disordered breathing (SDB). Peripheral arterial disease (PAD) represents severe atherosclerosis with a high mortality. In early stages of PAD a substantial prevalence of sleep apnoea has already been shown. Here, we sought to determine the frequency of undiagnosed sleep apnoea in a homogeneous group of advanced PAD patients undergoing percutaneous revascularization. METHODS: 59 consecutive patients (mean age: 71...
2017: PloS One
https://www.readbyqxmd.com/read/28750944/vector-and-doppler-ultrasound-velocities-evaluated-in-a-flow-phantom-and-the-femoropopliteal-vein
#11
Thor Bechsgaard, Kristoffer Lindskov Hansen, Andreas Hjelm Brandt, Simon Holbek, Julie Lyng Forman, Charlotte Strandberg, Lars Lönn, Niels Bækgaard, Jørgen Arendt Jensen, Michael Bachmann Nielsen
Ultrasound is used for evaluating the veins of the lower extremities. Operator and angle dependency limit spectral Doppler ultrasound (SDUS). The aim of the study was to compare peak velocity measurements in a flow phantom and the femoropopliteal vein of 20 volunteers with the angle-independent vector velocity technique vector flow imaging (VFI) and SDUS. In the flow phantom, VFI underestimated velocity (p = 0.01), with a lower accuracy of 5.5% (p = 0.01) and with no difference in precision, that is, error factor, compared with SDUS (VFI: 1...
July 24, 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/28739471/comparison-of-low-dose-catheter-directed-thrombolysis-with-and-without-pharmacomechanical-thrombectomy-for-acute-lower-extremity-ischemia
#12
Sagar S Gandhi, Joseph A Ewing, Emily Cooper, Jose Mauro Chaves, Bruce H Gray
INTRODUCTION: Catheter directed thrombolysis (CDT) and/or pharmacomechanical thrombectomy (PMT) can dissolve/remove thrombus; PMT alone, however, may require the adjunctive use of CDT. The aim of this study was to compare the use of CDT with and without PMT for the treatment of acute limb ischemia (ALI). METHODS: We retrospectively reviewed all patients with ALI who underwent CDT with or without PMT between January 2008 and April 2014 (N=99). Patients with incomplete medical charts were excluded (n=16)...
July 21, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28734257/comparison-of-femoropopliteal-artery-stents-under-axial-and-radial-compression-axial-tension-bending-and-torsion-deformations
#13
Kaspars Maleckis, Paul Deegan, William Poulson, Cole Sievers, Anastasia Desyatova, Jason MacTaggart, Alexey Kamenskiy
High failure rates of Peripheral Arterial Disease (PAD) stenting appear to be associated with the inability of certain stent designs to accommodate severe biomechanical environment of the femoropopliteal artery (FPA) that bends, twists, and axially compresses during limb flexion. Twelve Nitinol stents (Absolute Pro, Supera, Lifestent, Innova, Zilver, Smart Control, Smart Flex, EverFlex, Viabahn, Tigris, Misago, and Complete SE) were quasi-statically tested under bench-top axial and radial compression, axial tension, bending, and torsional deformations...
July 13, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28729250/stellarex-drug-coated-balloon-for-treatment-of-femoropopliteal-disease-12-month-outcomes-from-the-randomized-illumenate-pivotal-and-pharmacokinetic-studies
#14
Prakash Krishnan, Peter Faries, Khusrow Niazi, Ash Jain, Ravish Sachar, William B Bachinsky, Joseph A Cardenas, Martin Werner, Marianne Brodmann, J A Mustapha, Carlos I Mena-Hurtado, Michael R Jaff, Andrew H Holden, Sean P Lyden
Background -Drug-coated balloons (DCB) are a predominant revascularization therapy for symptomatic femoropopliteal artery disease. Due to differences in excipients, paclitaxel dose and coating morphologies, varying clinical outcomes have been observed with different DCBs. We report the results of two studies investigating the pharmacokinetic (PK) and clinical outcomes of a new DCB to treat femoropopliteal disease. Methods -In the ILLUMENATE Pivotal Study, 300 symptomatic patients (Rutherford class 2-4), were randomized to DCB (N=200) or standard angioplasty (PTA) (N=100)...
July 20, 2017: Circulation
https://www.readbyqxmd.com/read/28722294/clinical-outcomes-of-balloon-angioplasty-alone-versus-nitinol-stent-implantation-in-patients-with-small-femoropopliteal-artery-disease-observations-from-the-retrospective-multicenter-analysis-for-femoropopliteal-stenting-real-fp
#15
Norihiko Kamioka, Yoshimitsu Soga, Shoichi Kuramitsu, Osamu Iida, Keisuke Hirano, Kenji Suzuki, Daizo Kawasaki, Terutoshi Yamaoka, Nobuhiro Suematsu, Yoshiaki Shintani, Yusuke Miyashita, Hiroki Takahashi, Taketsugu Tsuchiya, Norihiko Shinozaki, Shinya Okazaki, Kenji Ando
OBJECTIVES: We sought to assess whether balloon angioplasty (BA) alone for small femoropopliteal disease improved the outcome following endovascular therapy as compared with stent implantation. BACKGROUND: The optimal strategy of endovascular therapy for small vessel arteries in femoropopliteal disease remains unclear. METHODS: We performed a multicenter retrospective analysis of 337 consecutive patients (371 limbs) with femoropopliteal arteries 4...
July 19, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28708023/comparison-of-drug-eluting-balloon-angioplasty-with-self-expanding-interwoven-nitinol-stent-deployment-in-patients-with-complex-femoropopliteal-lesions
#16
Burak Teymen, Suleyman Akturk, Ulku Akturk, Muhammed Tdjani
Objective The aim of this study was to compare the drug-eluting balloon with self-expanding interwoven nitinol stent deployment in patients with complex femoropopliteal lesions. Methods We retrospectively identified patients at our clinic with complex femoropopliteal artery lesions treated either with self-expanding interwoven nitinol stent or drug-eluting balloon. All patients had ankle-brachial index measured before and after the intervention, and regular clinical follow-up with Doppler ultrasonography was performed at six months and one year...
January 1, 2017: Vascular
https://www.readbyqxmd.com/read/28707544/differentiation-of-chronic-total-occlusion-and-sub-total-occlusion-of-the-femoropopliteal-artery-role-of-retrograde-flow-sign-and-collateral-circulation-on-ct-angiography-images
#17
Shujun Zhang, Yanfei Su, Haisong Chen
OBJECTIVE: To study the value of a retrograde flow sign and the collateral circulation on computed tomography angiography (CTA) for the differential diagnosis of chronic total occlusion from sub-total occlusion of the femoropopliteal artery (FPA). METHODS: Fifty patients with obstruction of the FPA underwent CTA and digital subtraction angiography (DSA) examinations of the lower limbs. The frequency of a retrograde flow sign and collateral circulation on CTA in chronic total and sub-total occlusion was noted and analyzed, with the results of DSA as a standard to judge total or sub-total occlusion...
July 14, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28705338/-femoropopliteal-angioplasty-short-and-mid-term-results
#18
M Ben Hammamia, M Ben Mrad, B Derbel, R Miri, J Ziadi, F Ghedira, R Denguir, T Kalfat
BACKGROUND: Percutaneous endovascular therapy is becoming a primary option for managing femoropopliteal occlusive disease. The purpose of this study was to evaluate the mid-term results of endovascular treatment of femoropopliteal arterial disease. METHODS: Femoropopliteal percutaneous transluminal angioplasty was performed on 162 consecutive limbs (160 patients) from January 2006 to January 2016. RESULTS: In our study, 87.6% of patients had critical limb ischemia...
July 2017: J Med Vasc
https://www.readbyqxmd.com/read/28697938/outcomes-of-endovascular-recanalization-versus-autogenous-venous-bypass-for-thromboangiitis-obliterans-patients-with-critical-limb-ischemia-due-to-tibioperoneal-arterial-occlusion
#19
Kaichuang Ye, Huihua Shi, Jinbao Qin, Minyi Yin, Xiaobing Liu, Weimin Li, Mi'er Jiang, Xinwu Lu
OBJECTIVE: This study sought to compare the outcomes of endovascular recanalization (ER) vs autogenous venous bypass (AVB) for tibioperoneal arterial occlusion in thromboangiitis obliterans patients with critical lower limb ischemia. METHODS: A total of 90 limbs in 75 patients, successfully treated with ER (ER group, 35 patients, 43 limbs) and AVB (AVB group, 40 patients, 47 limbs) for tibioperoneal arterial occlusions from January 2009 to December 2015 in a single institution, were retrospectively analyzed...
July 8, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28685661/treatment-of-infrainguinal-arterial-thromboembolic-acute-occlusions-with-the-aspirex-%C3%A2-mechanical-thrombectomy-device
#20
Burak Teymen, Süleyman Aktürk
OBJECTIVE: In this study, we investigated the safety and effectiveness of the Aspirex(®) mechanical thrombectomy system for the treatment of acute infrainguinal arterial thromboembolic occlusions. METHODS: We retrospectively identified consecutive patients at our clinic with infrainguinal thromboembolic acute occlusions treated with the Aspirex(®) mechanical thrombectomy device. Primary end points included technical success, defined as the complete revascularization of the acutely occluded vessel, and clinical success, defined as the absence of amputation within 60 d...
July 7, 2017: Acta Cardiologica
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