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Duplex ultrasound

Mohammed N Alkhatib, Tamer Abd-Alghafoor, AlaaEldeen Elmassry, Loai Albarqouni, Bettina Böttcher, Maha Alfaqawi
BACKGROUND: Stroke is a leading cause of morbidity and mortality worldwide. The aim of this study was to assess the standard of care for patients with acute ischaemic stroke at the internal medicine department of Nasser Hospital, Gaza Strip. METHODS: For this retrospective clinical audit, we selected a random sample of 100 medical records for patients with stroke who were admitted to Nasser Hospital between January and August, 2016. Clinical practice was compared with the recommendations in the 2013 American Heart Association and American Stroke Association guidelines...
February 21, 2018: Lancet
John L Schomburg, Suprita Krishna, Katherine J Cotter, Ayman Soubra, Amrita Rao, Badrinath Konety
OBJECTIVES: To determine the pre-operative incidence of subclinical lower-extremity deep vein thrombosis (DVT), as well as to evaluate the utility of preoperative DVT screening in bladder cancer patients prior to undergoing radical cystectomy. MATERIALS AND METHODS: Beginning in 2014, we prospectively instituted a policy of obtaining a screening lower-extremity duplex ultrasound on all patients within 7 days prior to undergoing radical cystectomy. We reviewed the electronic medical records of all patients at our institution who underwent radical cystectomy for bladder cancer from January 2012 through December 2015...
March 15, 2018: Urology
Eric Chung, Run Wang, David Ralph, Laurence Levine, Gerald Brock
BACKGROUND: Despite published guidelines on Peyronie's disease (PD), there are limited data on actual surgical practice among surgeons. AIM: To evaluate the surgical practice patterns in PD among surgeons from different continents and members of various sexual medicine societies. METHODS: An anonymous survey on various pre-, intra-, and postoperative aspects of PD surgical care was distributed in printed format during International Society of Sexual Medicine meetings and as an online survey to International Society of Sexual Medicine members...
March 14, 2018: Journal of Sexual Medicine
Tim Sebastian, Jörn F Dopheide, Rolf P Engelberger, David Spirk, Nils Kucher
BACKGROUND: Occlusion of the inferior vena cava (IVC) often causes venous claudication, leg swelling, or skin changes. We hypothesized that the outcome of nitinol stents for endovascular reconstruction of the IVC is similar to the outcome reported for steel alloy stents. METHODS: From the prospective Bern Venous Stent Registry, we investigated technical success, patency rates, and clinical outcome in consecutive patients with endovascular IVC reconstruction. During routine follow-up visits, stent patency was assessed by duplex ultrasound...
March 14, 2018: Journal of Vascular Surgery. Venous and Lymphatic Disorders
R Cuthbert, C Deutsch, A Roy, P Stimpson, H Patel
Introduction The free jejunal flap represents the gold standard for circumferential defects in upper digestive tract reconstruction. It is a technically demanding procedure with significant failure rates. Unrecognised failure leads to flap necrosis and potentially fatal sequelae, including sepsis and carotid artery bleed. Despite these catastrophic consequences, however, there remains no consensus on an optimum method for postoperative flap monitoring. Our unit has pioneered the use of external colour duplex ultrasound to monitor flap vascularity...
March 15, 2018: Annals of the Royal College of Surgeons of England
Nupoor Narula, Daniella Kadian-Dodov, Jeffrey W Olin
Fibromuscular dyplasia (FMD) is an under-recognized non-atherosclerotic, non-inflammatory arteriopathy that occurs most commonly in middle-aged women, but may affect individuals of all age groups. FMD may result in stenosis, aneurysm, dissection, occlusion, or arterial tortuosity. Recently published data demonstrated a genetic association of FMD with a variant in the phosphatase and actin regulator 1 gene (PHACTR1), substantiating that the pathogenesis of this condition has genetic contribution. The renal and extracranial carotid and vertebral arteries are most often involved, although any arterial bed may be affected...
March 10, 2018: Progress in Cardiovascular Diseases
Yoko Kaneko, Takamoto Yanagawa, Yoshinori Taru, Sonoko Hayashi, Hong Zhang, Tomoki Tsukahara, Tsuneaki Matsunaga, Takashi Ishizu
INTRODUCTION: We describe a hemodialysis patient who developed subclavian steal syndrome via an arteriovenous fistula after percutaneous transluminal angioplasty. CASE DESCRIPTION: A 55-year-old female with end-stage renal failure due to polycystic kidney disease had been treated with hemodialysis for 10 years. Because of an autologous arteriovenous fistula stenosis, percutaneous transluminal angioplasty was performed. After successful treatment with percutaneous transluminal angioplasty, the patient developed dizziness...
March 1, 2018: Journal of Vascular Access
Dale G Wilson, Sheena K Harris, Chandler Barton, Jeffrey D Crawford, Amir F Azarbal, Enjae Jung, Erica L Mitchell, Gregory J Landry, Gregory L Moneta
OBJECTIVE: The ankle-brachial index (ABI) is a well-established measure of distal perfusion in lower extremity ischemia; however, the ABI is of limited value in patients with noncompressible lower extremity arteries. We sought to demonstrate whether duplex ultrasound-determined tibial artery velocities can be used as an alternative to ABI as an objective performance measure after endovascular treatment of above-knee arterial stenosis. METHODS: Thirty-six patients undergoing above-knee endovascular intervention had preprocedure and postprocedure duplex ultrasound examination within 6 months of intervention...
March 6, 2018: Journal of Vascular Surgery
Joshua C Tremblay, Connor A Howe, Philip N Ainslie, Kyra Ellen Pyke
Experimentally-induced oscillatory shear stress (OSS) and hypoxia reduce endothelial function in humans. Acute and sustained hypoxia may cause increases in resting OSS; however, whether this influences endothelial susceptibility to further increases in OSS is unknown. Healthy lowlanders (n=15, 30{plus minus}6 years [mean{plus minus}SD]) participated in three OSS interventions; two at sea level (normoxia and following 20-minutes of normobaric hypoxia [acute hypoxia, 11% O2 ]) and one 5-7 days after a 9-day ascent to 5050m (sustained hypoxia)...
March 9, 2018: American Journal of Physiology. Heart and Circulatory Physiology
Kapila S Benaragama, Jennifer Barwell, Chris Lord, Biku J John, Adarsh Babber, Shella Sandoval, Ben Lindsey, Bimbi Fernando
PURPOSE: Primary arteriovenous fistula arterio venous fistula (AVF) formation has proven to be the best and optimal vascular access for the majority of haemodialysis patients. At present there are limited data to suggest which haemodynamic parameters most correlate with the likelihood of early failure. The aim of this study is to identify the haemodynamic predictors of early failure, hence identify which fistulae may benefit from timely pre-emptive intervention. MATERIAL AND METHODS: Retrospective analysis of data was performed of 201 patients undergoing native AVF creation over a one year period...
March 9, 2018: Journal of Renal Care
Duarte C Rego, Ahmed Khairy Sayed Ahmed, Gerard J O'Sullivan
PURPOSE: The purpose of this work was to describe the results of a technique of simultaneous antegrade and retrograde vascular access ("criss-cross") to the popliteal vein to achieve venous recanalization in patients with acute, extensive, iliofemoral DVT with concomitant popliteal and calf vein thrombosis. MATERIALS AND METHODS: Seven patients were treated using this technique, in three patients as a bailout option after failed posterior tibial vein puncture and in four as a first option...
March 7, 2018: Cardiovascular and Interventional Radiology
Katarzyna Pawlaczyk, Marcin Gabriel, Daria A Strzelecka-Węklar, Zbigniew Krasiński, Michal Stanisic, Zofia Gabriel, Łukasz Dzieciuchowicz, Zygmunt Adamski
Introduction: Peripheral microembolism is one of the most frequent causes of acute limb ischemia. In order to effectively prevent relapses it is essential to localize and eliminate the source of embolism. Aim: To evaluate the role of Duplex Doppler ultrasound examination in identifying the causes of blue toe syndrome (BTS). Material and methods: The group of 165 patients with clinical symptoms of BTS on their upper limbs ( n = 16) and lower limbs ( n = 149) was investigated...
October 2017: Postȩpy Dermatologii i Alergologii
Sergio Gianesini, Erica Menegatti, Francesco Sisini, Savino Occhionorelli, Federico Annoni, Byung-Boong Lee, Paolo Zamboni
OBJECTIVES: The aim was to assess more accurately the net flow of the lower limb perforating veins (PVs). MATERIAL AND METHODS: This was an observational prospective study. Two hundred and twenty one limbs with chronic venous disease (C1-6EpAs,pPr) of 193 patients underwent a duplex ultrasound (DUS). All identified PVs were scanned also by means of quality Doppler profile (QDP) multigate analysis in order to determine their net inward and outward flow direction...
March 1, 2018: European Journal of Vascular and Endovascular Surgery
Michele Piazza, Francesco Squizzato, Chiara Chincarini, Marny Fedrigo, Chiara Castellani, Annalisa Angelini, Franco Grego, Michele Antonello
OBJECTIVE: The objective of this study was to perform a quantitative analysis and to identify predictors of embolic filter debris (EFD) load during carotid artery stenting (CAS) in asymptomatic patients. METHODS: All patients with asymptomatic carotid stenosis >70% undergoing CAS between 2008 and 2016 were included in a prospective database. A distal filter protection device was used in all patients. At the end of the procedure, the filter was fixed in formalin and then analyzed with a stereomicroscope...
March 1, 2018: Journal of Vascular Surgery
Misaki M Kiguchi, Ellen D Dillavou
Open saphenous removal, phlebectomy, and venous ligation were historic mainstays of surgical treatment of venous disease. Duplex ultrasound has become standard to diagnose venous insufficiency. Percutaneous modalities have allowed treatments to include thermal and nonthermal endovenous ablation. These treatments vary in preoperative planning, procedural steps, and postprocedural care, but all are safe and effective. An individualized approach should be taken in determining which modality is offered to each patient...
April 2018: Surgical Clinics of North America
Raudel Garcia, Nicos Labropoulos
Venous diseases are highly prevalent, mostly caused by valve incompetence and/or obstruction of the vein lumen. Signs and symptoms are diverse and unspecific. Careful clinical assessment and imaging interpretation are crucial to diagnosis. Duplex ultrasound is the first choice and often the gold standard imaging technique for this purpose, providing information on the anatomy and function of the veins. This article describes the sonographic anatomic and hemodynamic criteria used for the diagnosis of venous reflux, venous obstruction, and the most frequent complications after interventions in the superficial, perforating, and deep venous systems...
April 2018: Surgical Clinics of North America
Ann H Kim, Gener Augustin, Andrew Shevitz, Hannah Kim, Michael R Trivonovich, Alexis R Powell, Norman Kumins, Robert Tarr, Vikram S Kashyap
The decision to intervene for internal carotid stenosis often depends on the degree of stenosis seen on duplex ultrasound (US). The aim of this study is to compare the diagnostic accuracy of two criteria: modified University of Washington (UW) and 2003 Carotid Consensus Panel (CCP). All patients undergoing US in an accredited (IAC) vascular laboratory from January 2010 to June 2015 were reviewed ( n=18,772 US exams). Patients receiving a neck computed tomography angiography (CTA) within 6 months of the US were included in the study ( n=254)...
March 1, 2018: Vascular Medicine
Ombretta Martinelli, Mauro Fresilli, Luigi Irace, Salvatore Venosi, Jihad Jabbour, Veronica Picone, Debora Maruca, Alessia Di Girolamo, Bruno Gossetti
PURPOSE: To report the use of a Nellix endovascular aneurysm sealing (EVAS) device, to successfully treat a type Ia endoleak after an endovascular aortic repair (EVAR). CASE REPORT: A 70-years old man was diagnosed with a 90-mm aortic aneurysm, suspicious for being inflammatory. It was initially treated successfully, with a Medtronic Endurant (Medtronic, Minneapolis, MN). Five years after the index endovascular repair, an asymptomatic type Ia endoleak was detected on duplex ultrasound and computed tomographic angiogram...
March 1, 2018: Annals of Vascular Surgery
Albeir Y Mousa, Mike Broce, David De Wit, Mina Baskarioun, Shadi AbuHalema, Michael Yacoub, Mark C Bates
BACKGROUND: The D-Dimer (DD) level combined with the pretest Wells criteria probability (WCP) score can safely exclude Deep Venous Thrombosis (DVT). The objective for this study was to examine the correlation between DD results alongside WCP score with findings on venous duplex ultrasound (VDU). The hypothesis is that VDU remains over utilized in low-risk patients with negative DD and that higher DD levels may correlate with thrombus burden and location. METHODS: Patients who presented to a high volume tertiary care center with lower limb swelling with or without associated pain were retrospectively examined through June and July for four consecutive years (2012 to 2015)...
March 1, 2018: Annals of Vascular Surgery
Rafaelle Spear, Jonathan Sobocinski, Adrien Hertault, Matthieu Delloye, Richard Azzauiu, Dominique Fabre, Stéphan Haulon
OBJECTIVES: To evaluate the outcomes of the second generation BeGraft balloon expandable covered stent Graft System (Bentley InnoMed, Hechingen, Germany) implanted as bridging stent grafts during fenestrated endovascular aortic repair (FEVAR) of complex aneurysms. DESIGN: This was a single centre prospective study including all consecutive patients treated by FEVAR performed with second generation BeGraft stent grafts as bridging stents. METHODS: Demographics of patients, diameter and length of the bridging stent grafts, technical success, re-interventions, occlusions, post-operative events, and imaging (Cone Beam CT and/or CT scan, and contrast enhanced ultrasound) were prospectively collected in an electronic database...
February 28, 2018: European Journal of Vascular and Endovascular Surgery
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