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Duplex ultrasound

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https://www.readbyqxmd.com/read/29145350/ultrasonographic-evaluation-of-complications-related-to-transfemoral-arterial-procedures
#1
Eun Ju Chun
The transfemoral arterial approach is used to gain access for angiography, percutaneous coronary interventions, or various endovascular therapies. To decrease the risk of procedure-related vascular complications, it is recommended to puncture the common femoral artery in its middle segment. However, due to inadequate access or anatomical variability, various complications, including hematoma, pseudoaneurysm, arteriovenous fistula, thrombosis, or dissection, can occur after transfemoral arterial interventions...
August 25, 2017: Ultrasonography
https://www.readbyqxmd.com/read/29142342/prevalence-of-subclinical-peripheral-vascular-disease-in-obese-egyptian-patients
#2
Jehan Ahmed Younes, Nahla Dessoki El-Sayed, Ayman Ismail Kamel
Objective: To detect subclinical peripheral vascular disease in obese Egyptian patients and establish relations between obesity, metabolic risk factors, and PVD. Methods: This was a prospective case-control study including 100 obese patients (BMI >30) (G1). In addition, 100 age and sex matched non-obese healthy subjects as a control group (G2). Both groups were subjected to duplex ultrasound, Radionuclide muscle scan. Angiography was done for 17 patients. Results: The image pattern of 99mTc-MIBI muscles uptake was studied and perfusion reserve (PR%) was calculated in (G1) and (G2)...
October 2017: Indian Journal of Nuclear Medicine: IJNM: the Official Journal of the Society of Nuclear Medicine, India
https://www.readbyqxmd.com/read/29125372/matched-increases-in-cerebral-artery-shear-stress-irrespective-of-stimulus-induce-similar-changes-in-extra-cranial-arterial-diameter-in-humans
#3
Kurt J Smith, Ryan L Hoiland, Ryan Grove, Hamish McKirdy, Louise Naylor, Philip N Ainslie, Daniel J Green
The mechanistic role of arterial shear stress in the regulation of cerebrovascular responses to physiological stimuli (exercise and hypercapnia) is poorly understood. We hypothesised that, if shear stress is a key regulator of arterial dilation, then matched increases in shear, induced by distinct physiological stimuli, would trigger similar dilation of the large extra-cranial arteries. Participants ( n = 10) participated in three 30-min experimental interventions, each separated by ≥48 h: (1) mild-hypercapnia (FICO2:∼0...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/29118586/successful-surgical-resection-of-iatrogenic-antecubital-venous-pseudoaneurysm-following-venipuncture-a-2-case-report
#4
Yosuke Niimi, Takashi Yamaki, Kejiro Hori, Miho Kirita, Yoji Nagashima, Hiroyuki Sakurai
Iatrogenic venous pseudoaneurysm (VP) formation after venipuncture is rare. This report showed 2 cases of VP following venipuncture, and VPs were resected surgically. A 58-year-old woman and a 56-year-old woman developed a soft antecubital mass after blood sampling from the basilic veins. One patient had the sensory disturbance of forearm. The mass was diagnosed as a VP with thrombus by duplex ultrasound and magnetic resonance imaging. The aneurysm was resected completely, and the sensory disturbance of the patient was improved...
2017: Clinical Medicine Insights. Case Reports
https://www.readbyqxmd.com/read/29117818/one-year-outcomes-following-directional-atherectomy-of-popliteal-artery-lesions-subgroup-analysis-of-the-prospective-multicenter-definitive-le-trial
#5
Aljoscha Rastan, James F McKinsey, Lawrence A Garcia, Krishna J Rocha-Singh, Michael R Jaff, Stuart Harlin, Suraj Kamat, Sean Janzer, Thomas Zeller
PURPOSE: To report the effectiveness of directional atherectomy for the treatment of popliteal artery occlusive disease. METHODS: This subset of the prospective, multicenter, single-arm DEFINITIVE LE trial included 158 patients (mean age 72.0±10.9 years; 82 men) who underwent directional atherectomy in 162 popliteal artery lesions between 2009 and 2011. Forty-eight (30.4%) patients were suffering from critical limb ischemia (CLI). The mean lesion length was 5.8±3...
November 1, 2017: Journal of Endovascular Therapy
https://www.readbyqxmd.com/read/29113863/long-term-outcomes-after-carotid-artery-stenting-of-patients-with-prior-neck-irradiation-or-surgery
#6
Ho-Hin K Choy, Damianos G Kokkinidis, Ryan Cotter, Gagan D Singh, R Kevin Rogers, Stephen W Waldo, John R Laird, Ehrin J Armstrong
BACKGROUND: Carotid artery stenting (CAS) is often performed in patients with carotid artery stenosis who have relative contraindications to carotid endarterectomy (CEA), including hostile neck anatomy (e.g., history of neck irradiation or prior surgery). We examined the impact of hostile neck anatomy on long-term outcomes after CAS. METHODS: All carotid artery stent procedures performed at two institutions from 2006 to 2016 were reviewed. Routine duplex carotid ultrasound was used to assess target lesion restenosis at regular intervals...
September 21, 2017: Cardiovascular Revascularization Medicine: Including Molecular Interventions
https://www.readbyqxmd.com/read/29097175/characteristics-of-patients-and-patterns-of-chronic-venous-disease-of-the-lower-limbs-in-a-referral-hospital-in-cameroon
#7
Marcus Fokou, Boniface Moifo, Emmanuel Fongang, Abel Teyang, Wallinjon Muna
OBJECTIVE: The objective of this study was to investigate the magnitude of chronic venous disease (CVD) in sub-Saharan Africa, specifically the characteristics of the patients, the symptoms, the signs, and the severity. METHODS: From December 2013 to December 2016, a cross-sectional study was conducted of all consecutive patients with CVD aged ≥18 years and attending the outpatient clinic of the Yaoundé General Hospital in Cameroon. We recorded information on demographics, relevant medical history, symptoms, lifestyle, and clinical presentation...
October 30, 2017: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/29097042/clinical-characteristics-and-outcome-of-isolated-infrarenal-aortic-stenosis-in-young-patients
#8
Spyridon Monastiriotis, Shang Loh, Apostolos Tassiopoulos, Nicos Labropoulos
OBJECTIVE: The objective of this study was to identify young patients with isolated infrarenal aortic atherosclerotic stenosis and to determine the clinical characteristics and midterm results of angioplasty and stenting. METHODS: Data from patients younger than 50 years with significant infrarenal aortic stenosis and at least 1 year of follow-up were prospectively collected. Patients with coexistent suprarenal or iliofemoral disease and Takayasu arteritis were excluded...
October 30, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/29079007/ten-year-outcome-analysis-of-the-italian-excluder-registry-with-the-gore-excluder-endograft-for-infrarenal-abdominal-aortic-aneurysms
#9
Giovanni Pratesi, Gabriele Piffaretti, Fabio Verzini, Giovanni De Blasis, Patrizio Castelli, Carlo Pratesi
OBJECTIVE: The objective of this study was to report the 10-year outcomes of the multicenter Italian Excluder Registry for elective endovascular aneurysm repair (EVAR). METHODS: A retrospective analysis of all patients who underwent elective EVAR using the Gore Excluder (W. L. Gore & Associates, Flagstaff, Ariz) endograft (EG) at four Italian centers between 1998 and 2006 was carried out. Follow-up consisted of duplex ultrasound scan and computed tomography performed at 1 month, 6 months, and 12 months and yearly thereafter...
October 24, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/29076745/cost-effectiveness-of-magnetic-resonance-carotid-plaque-imaging-for-primary-stroke-prevention-in-canada
#10
Lechtman E, Balki I, Thomas K, Chen K, Moody Ar, Tyrrell Pn
OBJECTIVES: Magnetic resonance (MR) imaging of the carotid arteries provides important insight into plaque composition and vulnerability in addition to the traditional measure of stenosis. The purpose of this study was to evaluate the cost-effectiveness of MR imaging as a first-line modality to assess carotid disease and guide management for high-risk patients with < 50% stenosis. METHODS: Using TreeAge Pro, a cost effectiveness simulation was conducted comparing two strategies: a) standard of care first-line carotid duplex ultrasound (DUS) with regular follow-up, versus b) first-line MR assessment of stenosis and intraplaque hemorrhage (MRIPH) in which patients with IPH received annual DUS surveillance and immediate carotid endarterectomy in case of plaque progression...
October 27, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/29075528/ultrasound-diagnostics-of-a-spontaneous-arteriovenous-fistula-of-the-head-and-neck
#11
Maria Vadimovna Zakharkina, Andrey Olegovich Chechetkin, Marina Victorovna Krotenkova, Rodion Nikolaevich Konovalov
An arteriovenous fistula is an abnormal connection between the arterial and venous systems. In the literature, there are well-described ultrasound findings of iatrogenic arteriovenous fistula as a potential complication from percutaneous transarterial or transvenous procedures. The most important sign is direct visualization of the fistula in the place of the access site. It is necessary to look for secondary signs of arterialization of the veins, which can suggest a diagnosis of an arteriovenous fistula. However, the accuracy and diagnostic quality of duplex scanning in the diagnostics of a congenital or spontaneous arteriovenous fistula of the head and neck area in adults have been poorly described in the literature...
September 2017: Journal of Ultrasonography
https://www.readbyqxmd.com/read/29058047/recurrent-stenosis-following-carotid-artery-stenting-treated-with-a-drug-eluting-balloon-a-single-center-retrospective-analysis
#12
C Pohlmann, J Höltje, M Zeile, F Bonk, P P Urban, R Brüning
PURPOSE: Early in-stent restenosis after stent-protected angioplasty of the carotid artery (SPAC) is an infrequent, but potentially harmful condition for patients with carotid artery disease. METHODS: In our retrospective single-center analysis of 176 patients with carotid artery stenting between 2009 and 2015, using duplex ultrasound, we detected 9 patients with high-grade carotid artery in-stent restenosis. All restenosis patients were treated with a drug-eluting balloon (DEB) to prevent recurrent neointimal hyperplasia...
October 20, 2017: Neuroradiology
https://www.readbyqxmd.com/read/29045738/the-proposed-role-of-ultrasound-in-the-management-of-giant-cell-arteritis-in-routine-clinical-practice
#13
Sara Monti, Alberto Floris, Cristina B Ponte, Wolfgang A Schmidt, Andreas P Diamantopoulos, Claudio Pereira, Sophie Vaggers, Raashid A Luqmani
Objective: To develop and explore a protocol for using colour duplex sonography (CDS) in the routine care of GCA. Methods: We tested CDS of temporal arteries and axillary arteries (AXs) on consecutive patients with suspected or established GCA, between July 2014 and September 2016. Results: We assessed 293 patients [age 72 (10), female/male 196/97], of whom 118 had clinically confirmed GCA. Seventy-three percent of patients had already received high-dose glucocorticoids (GCs) for 17 (33) days...
October 16, 2017: Rheumatology
https://www.readbyqxmd.com/read/29042075/evolution-of-type-ii-endoleaks-based-on-different-ultrasound-identified-patterns
#14
Spyridon Monastiriotis, Ignatius Lau, Shang Loh, John Ferretti, Apostolos Tassiopoulos, Nicos Labropoulos
OBJECTIVE: The objective of this study was to delineate the specific types of waveforms that exist in type II endoleaks (T2ELs) and their effect on aneurysm sac size. METHODS: Patients who underwent an endovascular aneurysm repair and were diagnosed with a T2EL were included in the study. The flow velocity characteristics of the T2ELs were evaluated in detail with duplex ultrasound. Four different flow patterns were identified: high resistance, low flow; low resistance, low flow; low resistance, high flow; and to-fro flow...
October 14, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/29037359/thigh-compartment-syndrome-during-extracorporeal-life-support
#15
Maximilian Kreibich, Martin Czerny, Christoph Benk, Friedhelm Beyersdorf, Bartosz Rylski, Georg Trummer
OBJECTIVE: The aim of this study was to report our experience with patients on the extracorporeal life support system (ECLS) who presented with thigh compartment syndrome, a yet unreported complication. METHODS: A retrospective analysis was performed from April 2003 to April 2017 to identify patients who presented to our department for treatment of acute compartment syndrome of the thigh after cannulation of the ECLS through the femoral artery and vein. RESULTS: Five patients, aged 30 to 84 years, who developed thigh compartment syndrome during ECLS therapy were identified...
November 2017: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/29037353/shortened-protocol-for-radiofrequency-ablation-of-perforator%C3%A2-veins
#16
Afsha Aurshina, Anil Hingorani, Sheila Blumberg, Ahmad Alsheekh, Natalie Marks, Amrit Hingorani, Eleanor Iadagarova, Enrico Ascher
BACKGROUND: Routine radiofrequency ablation (RFA) of an incompetent perforator vein (IPV) using the standard treatment protocol at 85°C has a treatment time of 6 minutes. To make treatment time more efficient, we sought to determine the effect of a shortened protocol for radiofrequency stylet (RFS) ablation by comparing the early success using three different temperatures: 85°C, 90°C, and 95°C. METHODS: A retrospective study examined 642 procedures of IPV closures in 255 patients with varying degrees of venous insufficiency treated with RFA from 2009 to 2015...
November 2017: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/29037351/rivaroxaban-versus-fondaparinux-for-thromboprophylaxis-after-endovenous-laser-ablation
#17
Hong H Keo, Frederic Baumann, Nicolas Diehm, Christian Regli, Daniel Staub
OBJECTIVE: Endovenous heat-induced thrombosis (EHIT) and deep venous thrombosis (DVT) are well-known complications after superficial endovenous thermoablation. We investigated the efficacy of rivaroxaban in preventing EHIT and DVT after endovenous laser ablation (EVLA). METHODS: We retrospectively analyzed a consecutive series of patients presenting with truncal varicosis class C2 to C6 undergoing EVLA. After EVLA, all patients received oral rivaroxaban (10 mg) or subcutaneous fondaparinux (2...
November 2017: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/29037350/prospective-study-of-safety-and-effectiveness-in-the-use-of-radiofrequency-ablation-for-incompetent-great-saphenous-vein-%C3%A2-12%C3%A2-mm
#18
Maday Cabrero Fernandez, Isaac Martinez Lopez, Manuela Maria Hernandez Mateo, Pablo Marques de Marino, Iñaki Cernuda Artero, Francisco Javier Serrano Hernando
OBJECTIVE: The objective of this study was to assess the outcomes of radiofrequency ablation (RFA) in incompetent great saphenous vein (GSV) according to its diameter. METHODS: This was a prospective single-center study including all patients treated with RFA from September 2014 to December 2015. The sample was divided according to the maximum GSV diameter measured on duplex ultrasound scan (A, <12 mm; B, ≥12 mm). Second-generation catheters (ClosureFast; Covidien, Mansfield, Mass) and tumescent anesthesia were used...
November 2017: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/29036794/assessing-the-effect-of-different-operation-techniques-on-postoperative-duplex-ultrasound-quality-after-carotid-endarterectomy
#19
E Grambow, T Heller, P Wieneke, C Weiß, E Klar, M Weinrich
BACKGROUND: Duplex ultrasound is the first choice in diagnostics and surveillance of stenoses of the internal carotid arteries before and even after surgery. Therefore, the quality of duplex ultrasound is crucial to investigate these vascular pathologies. OBJECTIVE: Aim of this study was the evaluation whether different surgical techniques affect the postoperative quality of duplex ultrasound. METHODS: In a time period from January to May 2015 duplex ultrasound of the cervical vessels was performed in 75 patients after unilateral endarterectomy of the internal carotid artery at our department between 2006 and 2012...
October 7, 2017: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/29032752/association-between-apolipoproteins-ai-and-b-and-ultrasound-indicators-of-carotid-atherosclerosis
#20
Zeljko Zivanovic, Ivana Divjak, Mirjana Jovicevic, Tamara Rabi-Zikic, Biljana Radovanovic, Svetlana Ruzicka-Kaloci, Djordje Stevan Popovic, Edita Stokic, Ksenija Gebauer-Bukurov, Katarina Zivanovic-Vujcic, Petar Slankamenac
BACKGROUND: Apolipoproteins A-I and B (apoA-I and apoB) may be better indicators of the risk of cardiovascular and cerebrovascular diseases than conventional risk factors (RFs). The onset of ischemic stroke (IS) may be preceded by the development of atherosclerotic changes in carotid arteries, which can be detected by ultrasound. Only a certain % of patients with IS have an (underlying) carotid etiology. OBJECTIVE: The aim of our study was to determine the association between ultrasound indicators of carotid atherosclerosis and the presence of apolipoproteins and other biomarkers in patients with IS...
October 10, 2017: Current Vascular Pharmacology
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