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Duplex surveillance

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https://www.readbyqxmd.com/read/29076745/cost-effectiveness-of-magnetic-resonance-carotid-plaque-imaging-for-primary-stroke-prevention-in-canada
#1
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/29049809/association-of-quality-improvement-registry-participation-with-appropriate-follow-up-after-vascular-procedures
#2
Benjamin S Brooke, Adam W Beck, Larry W Kraiss, Andrew W Hoel, Andrea M Austin, Amir A Ghaffarian, Jack L Cronenwett, Philip P Goodney
Importance: Ensuring that patients undergo surveillance imaging after surgery is a key quality metric after many vascular procedures. It is unclear whether hospital participation in a national quality improvement registry such as the Vascular Quality Initiative (VQI) achieves this goal. Objective: To determine if hospital participation in the VQI registry is associated with increased rates of surveillance imaging after vascular procedures. Design, Setting, and Participants: A quasi-experimental study used Medicare claims to study 2174 US hospitals in which 1 530 102 patients had undergone an endovascular abdominal aortic aneurysm repair (EVAR), 1 403 067 patients had undergone a lower extremity bypass (LEB) or peripheral vascular intervention (PVI), and 294 942 patients had undergone carotid endarterectomy (CEA) and carotid artery stenting (CAS) procedures between January 1, 2007, and December 31, 2012...
October 11, 2017: JAMA Surgery
https://www.readbyqxmd.com/read/29049525/impact-of-the-haga-braincare-strategy-on-the-burden-of-haemodynamic-and-embolic-strokes-related-to-cardiac-surgery
#3
Friso Duynstee, Ruud W M Keunen, Agnes van Sonderen, Ali M Keyhan-Falsafi, Gerard J F Hoohenkerk, Gayleen Stephens, Erik Teeuws, Jan W K van Alphen, Dénes L J Tavy, Arne Mosch, Sebastiaan F T M de Bruijn, Hans van Overhagen, Frank E E Treurniet, Lucas C van Dijk, Paulien M van Kampen
OBJECTIVES: This study prospectively evaluates the impact of the Haga Braincare Strategy (HBS) on the occurrence of haemodynamic and embolic stroke in a cohort of patients who underwent coronay artery bypass grafting (CABG), valve replacement of a combination of both types of surgery between 2012 and 2015 at the Haga Teaching Hospitals. METHODS: The HBS is a dual strategy based on a preoperative vascular work-up of the cerebral circulation by transcranial Doppler and a perioperative monitoring of the cerebral circulation by cerebral oximetry...
November 1, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29036794/assessing-the-effect-of-different-operation-techniques-on-postoperative-duplex-ultrasound-quality-after-carotid-endarterectomy
#4
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/28981691/duplex-real-time-pcr-assay-distinguishes-aedes-aegypti-from-ae-albopictus-diptera-culicidae-using-dna-from-sonicated-first-instar-larvae
#5
Linda Kothera, Brian Byrd, Harry M Savage
Aedes aegypti (L.) and Ae. albopictus (Skuse) are important arbovirus vectors in the United States, and the recent emergence of Zika virus disease as a public health concern in the Americas has reinforced a need for tools to rapidly distinguish between these species in collections made by vector control agencies. We developed a duplex real-time PCR assay that detects both species and does not cross-amplify in any of the other seven Aedes species tested. The lower limit of detection for our assay is equivalent to ∼0...
November 7, 2017: Journal of Medical Entomology
https://www.readbyqxmd.com/read/28935292/clinical-significance-of-reversal-of-flow-in-the-vertebral-artery-identified-on-cerebrovascular-duplex-ultrasound
#6
Aleksandra Policha, Melissa Baldwin, Victoria Lee, Mark A Adelman, Caron Rockman, Todd Berland, Neal S Cayne, Thomas S Maldonado
BACKGROUND: Reversal of flow in the vertebral artery (RFVA) is an uncommon finding on cerebrovascular duplex ultrasound examination. The clinical significance of RFVA and the natural history of patients presenting with it are poorly understood. Our objective was to better characterize the symptoms and outcomes of patients presenting with RFVA. METHODS: A retrospective review was performed of all cerebrovascular duplex ultrasound studies performed at our institution between January 2010 and January 2016 (N = 2927 patients)...
September 18, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28887236/iatrogenic-major-venous-injury-is-associated-with-increased-morbidity-of-aortic-reconstruction
#7
Sachinder S Hans, Steven Vang, Gul Sachwani-Daswani
BACKGROUND: Major venous injury during open aortic reconstruction though uncommon often result in sudden and massive blood loss resulting in increased morbidity and mortality. This study details the etiology, management, and outcome of such injuries. METHODS: A retrospective review of 945 patients (1981-2017) undergoing aortic reconstruction from 2 midsized (350 bed each) teaching hospitals was conducted. Seven hundred twenty-three patients (76.5%) underwent open abdominal aortic aneurysm (AAA) repair/iliac aneurysm repair, 222 patients (23...
September 5, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28863078/the-prevalence-of-chronic-deep-venous-thrombosis-in-trauma-implications-for-hospitals-and-patients
#8
Kathleen A Cannon, Jayraan Badiee, James D Wallace, Jason B Brill, Michael J Sise, Vishal Bansal, C Beth Sise, Steven R Shackford
INTRODUCTION: Deep venous thrombosis (DVT) is considered a preventable complication in trauma patients. Hospitals risk financial penalties for DVT rates above accepted benchmarks. These penalties do not apply to chronic DVT which develop prior to admission. Lower-extremity duplex ultrasound (LEDUS) can detect characteristics of thrombus chronicity, allowing differentiation of chronic from acute DVT. The objective of this study was to determine the prevalence of chronic DVT in hospitalized trauma patients...
August 31, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28837841/development-and-validation-of-a-taqman-probe-based-real-time-pcr-method-for-the-differentiation-of-wild-type-lumpy-skin-disease-virus-from-vaccine-virus-strains
#9
Eirini I Agianniotaki, Serafeim C Chaintoutis, Andy Haegeman, Konstantia E Tasioudi, Ilse De Leeuw, Panagiotis-Dimitrios Katsoulos, Achilleas Sachpatzidis, Kris De Clercq, Thomas Alexandropoulos, Zoe S Polizopoulou, Eleni D Chondrokouki, Chrysostomos I Dovas
Lumpy skin disease (LSD) is a transboundary viral disease of cattle with severe economic impact. Immunization of cattle with homologous live attenuated vaccines poses a number of diagnostic problems, as it has been associated with adverse reactions resembling disease symptoms. The latter hampers clinical diagnosis and poses challenges in virus identification. To this end, a duplex quantitative real-time PCR method targeting the GPCR gene was developed and validated, for the concurrent detection and differentiation of wild type and vaccine Lumpy skin disease virus (LSDV) strains...
August 31, 2017: Journal of Virological Methods
https://www.readbyqxmd.com/read/28781236/structural-variation-of-type-i-f-crispr-rna-guided-dna-surveillance
#10
COMPARATIVE STUDY
Patrick Pausch, Hanna Müller-Esparza, Daniel Gleditzsch, Florian Altegoer, Lennart Randau, Gert Bange
CRISPR-Cas systems are prokaryotic immune systems against invading nucleic acids. Type I CRISPR-Cas systems employ highly diverse, multi-subunit surveillance Cascade complexes that facilitate duplex formation between crRNA and complementary target DNA for R-loop formation, retention, and DNA degradation by the subsequently recruited nuclease Cas3. Typically, the large subunit recognizes bona fide targets through the PAM (protospacer adjacent motif), and the small subunit guides the non-target DNA strand. Here, we present the Apo- and target-DNA-bound structures of the I-Fv (type I-F variant) Cascade lacking the small and large subunits...
August 17, 2017: Molecular Cell
https://www.readbyqxmd.com/read/28719301/development-of-a-real-time-reverse-transcription-polymerase-chain-reaction-for-o-nyong-nyong-virus-and-evaluation-with-clinical-and-mosquito-specimens-from-kenya
#11
Jesse Waggoner, Claire Jane Heath, Bryson Ndenga, Francis Mutuku, Malaya K Sahoo, Alisha Mohamed-Hadley, John Vulule, Dunstan Mukoko, A Desiree LaBeaud, Benjamin A Pinsky
O'nyong-nyong virus (ONNV), an alphavirus closely related to chikungunya virus (CHIKV), has been the documented cause of two large outbreaks in east Africa; however, little is known about the contribution of ONNV to cases of acute febrile illness during interepidemic periods. An ONNV real-time reverse transcription polymerase chain reaction (rRT-PCR) was developed and evaluated using clinical and mosquito pool samples. The ONNV rRT-PCR linear range extended from 8.0 to 2.0 log10 copies/μL, and the lower limit of 95% detection was 22...
July 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28697937/complications-after-endovascular-treatment-of-hepatic-artery-stenosis-after-liver-transplantation
#12
Leighton E Goldsmith, Kristy Wiebke, John Seal, Clayton Brinster, Taylor A Smith, Hernan A Bazan, W Charles Sternbergh
BACKGROUND: Hepatic artery stenosis (HAS) after liver transplantation can progress to hepatic artery thrombosis (HAT) and a subsequent 30% to 50% risk of graft loss. Although endovascular treatment of severe HAS after liver transplantation has emerged as the dominant method of treatment, the potential risks of these interventions are poorly described. METHODS: A retrospective review of all endovascular interventions for HAS after liver transplantation between August 2009 and March 2016 was performed at a single institution, which has the largest volume of liver transplants in the United States...
November 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28697017/risk-factors-for-deep-vein-thrombosis-and-pulmonary-embolism-after-traumatic-injury-a-competing-risks-analysis
#13
Jan-Michael Van Gent, Richard Y Calvo, Ashley L Zander, Erik J Olson, C Beth Sise, Michael J Sise, Steven R Shackford
BACKGROUND: Venous thromboembolism (VTE), including deep vein thrombosis (DVT) and pulmonary embolism (PE), is typically reported as a composite measure of the quality of trauma center care. Given recent data suggesting post-injury DVT and PE are distinct clinical processes, a better understanding may result from analyzing them as independent, competing events. Using competing risks analysis, we evaluated our hypothesis that the risk factors and timing of post-injury DVT and PE are different...
July 8, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28598495/ultrasonography-for-endoleak-detection-after-endoluminal-abdominal-aortic-aneurysm-repair
#14
REVIEW
Iosief Abraha, Maria Laura Luchetta, Rita De Florio, Francesco Cozzolino, Giovanni Casazza, Piergiorgio Duca, Basso Parente, Massimiliano Orso, Antonella Germani, Paolo Eusebi, Alessandro Montedori
BACKGROUND: People with abdominal aortic aneurysm who receive endovascular aneurysm repair (EVAR) need lifetime surveillance to detect potential endoleaks. Endoleak is defined as persistent blood flow within the aneurysm sac following EVAR. Computed tomography (CT) angiography is considered the reference standard for endoleak surveillance. Colour duplex ultrasound (CDUS) and contrast-enhanced CDUS (CE-CDUS) are less invasive but considered less accurate than CT. OBJECTIVES: To determine the diagnostic accuracy of colour duplex ultrasound (CDUS) and contrast-enhanced-colour duplex ultrasound (CE-CDUS) in terms of sensitivity and specificity for endoleak detection after endoluminal abdominal aortic aneurysm repair (EVAR)...
June 9, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28550512/duplex-ultrasound-versus-clinical-surveillance-in-the-prediction-of-tips-malfunction-placed-for-refractory-ascites-is-ultrasound-surveillance-useful
#15
Shamar Young, Patrick Scanlon, Prashant Sherestha, Jafar Golzarian, Tina Sanghvi
PURPOSE: Since the advent of expanded polytetrafluoroethylene-covered stents and the improved patency they confer for transjugular intrahepatic portosystemic shunt (TIPS), the need to perform ultrasound surveillance has been debated. Prior reports have failed to separately evaluate patients who had TIPS placed for refractory ascites and variceal bleeding. The difference in morbidity from TIPS malfunction between these cohorts argues for distinction between the two. This retrospective review aims to determine whether Duplex ultrasound or return of symptoms more accurately predicts TIPS dysfunction...
May 26, 2017: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/28535732/duplex-ultrasound-surveillance-after-uncomplicated-endovascular-abdominal-aortic-aneurysm-repair
#16
Jacob S Schaeffer, Irina Shakhnovich, Kyle N Sieck, Kara J Kallies, Clark A Davis, Thomas H Cogbill
OBJECTIVES: Health-care costs and risks of radiation and intravenous contrast exposure challenge computed tomography angiography (CTA) as the standard surveillance method after endovascular abdominal aortic aneurysm repair (EVAR). We reviewed our experience using Duplex ultrasound scan (DUS) as an initial and subsequent surveillance technique after uncomplicated EVAR. METHODS: The medical records of patients who underwent EVAR from 2004 to 2014 with at least 1 postoperative imaging study were retrospectively reviewed...
July 2017: Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/28367009/trauma-patients-warrant-upper-and-lower-extremity-venous-duplex-ultrasound-surveillance
#17
Alonso Andrade, Alan H Tyroch, Susan F McLean, Jody Smith, Alex Ramos
BACKGROUND: Due to the high incidence of thromboembolic events (deep venous thrombosis [DVT] and pulmonary embolus [PE]) after injury, many trauma centers perform lower extremity surveillance duplex ultrasounds. We hypothesize that trauma patients are at a higher risk of upper extremity DVTs (UEDVTs) than lower extremity DVTs (LEDVTs), and therefore, all extremities should be evaluated. MATERIALS AND METHODS: A retrospective chart and trauma registry review of Intensive Care Unit trauma patients with upper and LEDVTs detected on surveillance duplex ultrasound from January 2010 to December 2014 was carried out...
April 2017: Journal of Emergencies, Trauma, and Shock
https://www.readbyqxmd.com/read/28341498/natural-history-of-iatrogenic-pediatric-femoral-artery-injury
#18
Elizabeth A Andraska, Tatum Jackson, Huiting Chen, Katherine A Gallagher, Jonathan L Eliason, Dawn M Coleman
BACKGROUND: Iatrogenic femoral artery trauma complicates the course of critically ill neonates and children. Complications from persistent arterial occlusion may include claudication and limb length discrepancies. Data supporting risk factors for such and need for revascularization are lacking. METHODS: Review of a prospectively maintained database at a tertiary institution of iatrogenic pediatric femoral artery injuries incurred between 2013 and 2014 was performed...
March 22, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28221877/duplex-real-time-pcr-method-for-the-differentiation-of-cronobacter-sakazakii-and-cronobacter-malonaticus
#19
Xiaofang Li, Jinghua Cui, Xiaoli DU, Zhigang Cui, Yibing Huang, Biao Kan
Cronobacter sakazakii and Cronobacter malonaticus are the most common species of Cronobacter , so it is necessary to detect the two species as soon as possible in surveillance programs. We developed a real-time PCR method for identifying C. sakazakii and C. malonaticus from the genus Cronobacter . In this study, the two pairs of primers and probes were designed, targeting 16S rRNA and fusA, respectively. The specificity of the real-time PCR assay was validated with 112 strains of Cronobacter , including 56 C...
January 2017: Journal of Food Protection
https://www.readbyqxmd.com/read/28216351/the-fate-of-endovascular-aortic-aneurysm-repair-after-5%C3%A2-years-monitored-with-duplex-ultrasound-imaging
#20
MULTICENTER STUDY
Danielle M Pineda, Zachary M Phillips, Keith D Calligaro, Emilia Krol, Matthew J Dougherty, Douglas A Troutman, Alan Dietzek
BACKGROUND: Interventions for aortic aneurysm sac growth have been reported across multiple time points after endovascular aortic aneurysm repair (EVAR). We report the long-term outcomes of patients after EVAR monitored with duplex ultrasound (DUS) imaging with respect to the need for and type of intervention after 5 years. METHODS: We report a series of patients who were monitored with DUS imaging for a minimum of 5 years after EVAR. DUS imaging was performed in an accredited noninvasive vascular laboratory, and computed tomography angiography was only performed for abnormal DUS findings...
August 2017: Journal of Vascular Surgery
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