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Duplex ultrasound

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https://www.readbyqxmd.com/read/28927554/catheter-foam-sclerotherapy-of-the-great-saphenous-vein-with-perisaphenous-tumescence-infiltration-and-saphenous-irrigation
#1
Attilio Cavezzi, Giovanni Mosti, Fausto Campana, Lorenzo Tessari, Luca Bastiani, Simone U Urso
OBJECTIVES: This was a prospective observational study to assess the short- to mid-term efficacy and safety of catheter foam sclerotherapy (CFS) of the great saphenous vein (GSV), including peri-saphenous tumescence infiltration (PST) and intra-saphenous saline irrigation (ISI), in combination with phlebectomy of the varicose tributaries. METHODS: Eighty-eight limbs in 82 patients (19 male, 63 female, mean age 55.7 years) affected by varices related to GSV incompetence were submitted to CFS of the refluxing GSV segment after PST and ISI, combined with phlebectomy of the varicose tributaries...
September 15, 2017: European Journal of Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/28925529/cerebrovascular-response-to-the-cold-pressor-test-the-critical-role-of-carbon-dioxide
#2
Michael M Tymko, Thijs P Kerstens, Kevin W Wildfong, Philip N Ainslie
In addition to increasing sympathetic nervous activity, blood pressure, and cerebral blood flow (CBF), the cold pressor test (CPT) stimulates pain receptors, which may increase ventilation above metabolic demand; this response likely reduces the partial pressure of end-tidal carbon dioxide (PET CO2 ), and will attenuate elevations in CBF. We hypothesized: (1) CPT would elicit hyperventilation, effectively lowering PET CO2 ; (2) the CBF response will be elevated during an isocapnic (controlled PET CO2 ), compared to a poikilocapnic CPT (uncontrolled PET CO2 ); (3) In response to CPT, the common carotid artery (CCA) will vasodilatate, while the internal carotid artery (ICA) will remain unchanged to help regulate CBF...
September 19, 2017: Experimental Physiology
https://www.readbyqxmd.com/read/28916599/directional-atherectomy-followed-by-a-paclitaxel-coated-balloon-to-inhibit-restenosis-and-maintain-vessel-patency-twelve-month-results-of-the-definitive-ar-study
#3
Thomas Zeller, Ralf Langhoff, Krishna J Rocha-Singh, Michael R Jaff, Erwin Blessing, Beatrice Amann-Vesti, Marek Krzanowski, Patrick Peeters, Dierk Scheinert, Giovanni Torsello, Sebastian Sixt, Gunnar Tepe
BACKGROUND: Studies assessing drug-coated balloons (DCB) for the treatment of femoropopliteal artery disease are encouraging. However, challenging lesions, such as severely calcified, remain difficult to treat with DCB alone. Vessel preparation with directional atherectomy (DA) potentially improves outcomes of DCB. METHODS AND RESULTS: DEFINITIVE AR study (Directional Atherectomy Followed by a Paclitaxel-Coated Balloon to Inhibit Restenosis and Maintain Vessel Patency-A Pilot Study of Anti-Restenosis Treatment) was a multicenter randomized trial designed to estimate the effect of DA before DCB to facilitate the development of future end point-driven randomized studies...
September 2017: Circulation. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28905170/-follow-up-ultrasound-of-head-and-neck-cancer
#4
J Künzel, A Bozzato, S Strieth
In Germany high-resolution sonography using the color duplex mode in addition to computed tomography (CT) is a well-established and proven method in the context of restaging after primary therapy of head and neck squamous cell cancer (HNSCC). There are no international evidence-based restaging guidelines. Decisions concerning neck dissection (ND) after primary radiochemotherapy (RCT) are often individually derived in the respective tumor conferences and are therefore subject to variance. Compared to the UK or USA, in Germany there is a high level of expertise in the use of ultrasound in combination with CT for the routine restaging of HNSCC after RCT...
September 13, 2017: HNO
https://www.readbyqxmd.com/read/28900890/high-level-of-venous-thromboembolism-in-critically-ill-trauma-patients-despite-early-and-well-driven-thromboprophylaxis-protocol
#5
S R Hamada, C Espina, T Guedj, R Buaron, A Harrois, S Figueiredo, J Duranteau
BACKGROUND: Venous thromboembolism (VTE) is one of the most common preventable causes of in-hospital death in trauma patients surviving their injuries. We assessed the prevalence, incidence and risk factors for deep venous thrombosis (DVT) and pulmonary embolism (PE) in critically ill trauma patients, in the setting of a mature and early mechanical and pharmacological thromboprophylaxis protocol. METHODS: This was a prospective observational study on a cohort of patients from a surgical intensive care unit of a university level 1 trauma centre...
September 12, 2017: Annals of Intensive Care
https://www.readbyqxmd.com/read/28899572/hypoglossal-nerve-palsy-in-the-course-of-dissection-of-the-internal-carotid-arteries-case-reports
#6
Magdalena Torbus-Paluszczak, Sebastian Mucha, Maciej Wawrzyńczyk, Krystyna Pierzchała, Wojciech Bartman, Monika Adamczyk-Sowa
Internal carotid artery dissection (ICAD) has become an increasingly recognized cause of cerebrovascular accidents in young and middle-aged patients. We report 2 cases of hypoglossal nerve palsy in the course of dissection of the internal carotid arteries. The first patient was admitted to the Department of Neurology due to swallowing difficulty, speech articulation disorders and numbness of the right half of the tongue for 4 weeks. Extracranial vessel ultrasound (US) and transcranial colour Doppler (TCD) visualized thrombus causing occlusion of the right internal carotid artery (RICA)...
August 30, 2017: Neurologia i Neurochirurgia Polska
https://www.readbyqxmd.com/read/28893152/a-new-percutaneous-technique-n-butyl-cyanoacrylate-adhesive-for-the-treatment-of-giant-saphenous-vein-insufficiency
#7
Mehmet Senel Bademci, Kaptanıderya Tayfur, Gökhan Ocakoglu, Serkan Yazman, Muhammet Akyüz, Haydar Yasa
Background We have made a retrospective evaluation of the results of the cyanoacrylate ablation technique which has recently started to be used in the treatment of giant saphenous vein insufficiency today and in which tumescent anesthesia is not required. Methods Giant saphenous vein was treated in 50 patients between September 2015 and September 2016 by using endovenous cyanoacrylate ablation. In the procedure, tumescent anesthesia and varsity socks were not used. Control duplex ultrasound evaluation was performed in the post-procedural 1st, 6th and 12th months...
January 1, 2017: Vascular
https://www.readbyqxmd.com/read/28889765/effect-of-caffeine-on-superior-mesenteric-artery-blood-flow-velocities-in-preterm-neonates
#8
Mohamed A Abdel Wahed, Hanan M Issa, Soha M Khafagy, Shaimaa M Abdel Raouf
OBJECTIVE: To investigate the effect of caffeine infusion on superior mesenteric artery (SMA) blood flow velocities (BFV) in preterm infants. METHODS: Prospective observational study on 38 preterm neonates 28-33(+6) weeks gestation, who developed apnea on their first day of life, and caffeine citrate infusion was initiated at a loading dose of 20 mg/kg, followed by a maintenance dose of 5-10 mg/kg/day. Duplex ultrasound measurements of SMA BFV were recorded: peak systolic velocity (PSV), end diastolic velocity (EDV) and resistive index (RI), at 15 minutes before, 1-, 2- and 6 hours after caffeine loading dose, and 2 hours after two maintenance doses...
September 10, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28887253/comparison-of-ultrasound-guided-thrombin-injection-of-iatrogenic-pseudoaneurysms-based-on-neck-dimension
#9
E Y Yang, M M Tabbara, P G Sanchez, A M Abi-Chaker, J Patel, A Bornak, K M Jones, J Rey
OBJECTIVE: Ultrasound-guided thrombin injection (UGTI) of femoral artery pseudoaneurysms after endovascular procedures is an effective therapy. There is controversy in the literature regarding injecting pseudoaneurysms with short and/or wide necks. This paper reports on our experience in UGTI of pseudoaneurysms in one hospital regarding the efficacy of this treatment in all pseudoaneurysms regardless of the size of the necks. METHOD: A retrospective review of 46 patients diagnosed between 2011 and 2016 with groin pseudoaneurysms using established duplex ultrasound criteria...
September 5, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28886989/factors-associated-with-contralateral-deep-venous-thrombosis-after-iliocaval-venous-stenting
#10
S A Khairy, R J Neves, O Hartung, G J O'Sullivan
BACKGROUND: The majority of iliac venous obstructions occur on the left side, and endovascular therapy has become the first line treatment for this condition. A left common iliac venous stent will protrude into the inferior vena cava (IVC) to some extent, thereby covering the contralateral common iliac vein (CIV) outflow. This may increase the risk of thrombosis of the contralateral iliac vein. The aim of this paper was to determine the rate of, and factors associated with, contralateral lower limb venous thrombosis after stenting, and to evaluate the results of salvage revascularisation...
September 5, 2017: European Journal of Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/28866449/fractional-flow-reserve-in-below-the-knee-arteries-with-critical-limb-ischemia-and-validation-against-gold-standard-morphologic-functional-measures-and-long-term-clinical-outcomes
#11
Zoltán Ruzsa, Szilárd Róna, Gábor G Tóth, Péter Sótonyi, Olivier F Bertrand, Balázs Nemes, Béla Merkely, Kálmán Hüttl
INTRODUCTION: The aim of this study was to assess the applicability of fractional flow reserve measurement (FFR) in below-the-knee (BTK) arteries and to evaluate its correlation with non-invasive functional parameters before and after angioplasty. METHODS: We enrolled 39 patients with severe BTK arterial lesions. Inclusion criteria were critical limb ischemia (Rutherford 4-6) and angiographically proven arterial stenosis of the distal lower limb (percent diameter stenosis ≥70%)...
July 18, 2017: Cardiovascular Revascularization Medicine: Including Molecular Interventions
https://www.readbyqxmd.com/read/28863078/the-prevalence-of-chronic-deep-venous-thrombosis-in-trauma-implications-for-hospitals-and-patients
#12
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/28860174/ubc-nepal-expedition-acute-alterations-in-sympathetic-nervous-activity-do-not-influence-brachial-artery-endothelial-function-at-sea-level-and-high-altitude
#13
Michael M Tymko, Joshua C Tremblay, Craig D Steinback, Jonathan P Moore, Alex B Hansen, Alexander Patrician, Connor A Howe, Ryan L Hoiland, Daniel J Green, Philip N Ainslie
Evidence indicates that increases in sympathetic nervous activity (SNA), and acclimatization to high-altitude (HA), may reduce endothelial function as assessed by brachial artery flow-mediated dilatation (FMD); however, it is unclear whether such changes in FMD are due to direct vascular constraint, or consequential altered hemodynamics (e.g. shear stress) associated with increased SNA as a consequence of exposure to HA. We hypothesized that: 1) at rest, SNA would be elevated and FMD would be reduced at HA compared to sea-level (SL); and 2) at SL and HA, FMD would be reduced when SNA was acutely increased, and elevated when SNA was acutely decreased...
August 31, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28860105/ascertaining-the-value-of-noninvasive-measures-obtained-using-color-duplex-ultrasound-and-central-aortic-pressure-monitoring-during-the-management-of-cerebral-arteriovenous-malformation-resection-protocol-for-a-prospective-case-control-pilot-study
#14
Kathryn J Busch, Hosen Kiat
BACKGROUND: Dramatic hemodynamic changes occur upon removal of an arteriovenous malformation of the brain (bAVM) with a number of potentially serious perioperative complications, such as intracranial hemorrhage and venous occlusive hypertensive syndrome. As these complications largely occur in the postoperative inpatient period, a rapid, repeatable noninvasive investigation to serially monitor relevant intracranial hemodynamics may be of benefit. Though, transcranial Doppler (TCD) and transcranial color duplex (TCCD) are techniques used and available to provide hemodynamic measurements postoperatively, the time course of hemodynamic sequences following bAVM resection remains uncertain...
August 31, 2017: JMIR Research Protocols
https://www.readbyqxmd.com/read/28855220/duplex-gall-bladder-bystander-or-culprit
#15
Jogender Kumar, Arushi Yadav
Gall bladder (GB) duplication is a rare anatomical malformation, which can be detected by preoperative imaging study. We present a case of duplex gall bladder in a 14-year-old boy who presented with abdominal pain. On ultrasound, he had right nephrolithiasis and duplex gall bladder. Duplex gall bladder was confirmed on MR cholangiopancreatography. There was a dilemma for surgical management of duplex gall bladder; however, he became asymptomatic after conservative treatment. Prophylactic surgery is not recommended for asymptomatic incidentally detected duplex gall bladder...
August 30, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28839334/central-venous-catheter-related-thrombosis-in-intensive-care-patients-incidence-and-risk-factors-a-prospective-observational-study
#16
Ondrej Hrdy, Eva Strazevska, Petr Suk, Robert Vach, Radim Karlik, Jiri Jarkovsky, Igor Sas, Roman Gal
BACKGROUND: One of the complications associated with central venous catheter (CVC) placement is catheter related deep vein thrombosis (CR-DVT). However a literature search revealed little evidence of this recognised complication. The primary aim of this study was to establish the incidence rate and risk factors for the development of CR-DVT in our critically ill adult patients. METHODS: All critically ill adult patients admitted to the medical-surgical ICU with CVC inserted were included in this observational prospective study...
August 24, 2017: Biomedical Papers of the Medical Faculty of the University Palacký, Olomouc, Czechoslovakia
https://www.readbyqxmd.com/read/28838480/self-expanding-versus-balloon-expandable-stents-for-iliac%C3%A2-artery%C3%A2-occlusive-disease-the%C3%A2-randomized-ice-trial
#17
Hans Krankenberg, Thomas Zeller, Maja Ingwersen, Josefin Schmalstieg, Hans Martin Gissler, Sigrid Nikol, Iris Baumgartner, Nicolas Diehm, Estell Nickling, Stefan Müller-Hülsbeck, Rainer Schmiedel, Giovanni Torsello, Willibald Hochholzer, Christian Stelzner, Klaus Brechtel, Wulf Ito, Ralph Kickuth, Erwin Blessing, Marcus Thieme, Jaroslaw Nakonieczny, Thomas Nolte, Ragnar Gareis, Harald Boden, Sebastian Sixt
OBJECTIVES: Atherosclerosis of iliac arteries is widespread. As inflow vessels, they are of great clinical significance and increasingly being treated by endovascular means. Most commonly, stents are implanted. BACKGROUND: So far, due to a lack of comparative data, no guideline recommendations on the preferable stent type, balloon-expandable stent (BE) or self-expanding stent (SE), have been issued. METHODS: In this randomized, multicenter study, patients with moderate to severe claudication from common or external iliac artery occlusive disease were assigned 1:1 to either BE or SE...
August 28, 2017: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28830296/progression-of-external-and-internal-carotid-artery-stenosis-is-associated-with-a-higher-risk-of-ischemic-neurologic-events-in-patients-with-asymptomatic-carotid-artery-stenosis
#18
Reza Masoomi, Zubair Shah, Buddhadeb Dawn, Karthik Vamanan, Aravinda Nanjundappa, Kamal Gupta
A small percentage of patients with asymptomatic carotid artery stenosis (ACAS) who are on optimal medical management do go on to develop ischemic stroke or transient ischemic attacks (IS/TIA). Several diagnostic tools have been studied to identify those patients who are at increased risk. However, most of these diagnostic tools are not available for routine clinical use or are resource intensive. We performed a retrospective study to assess the incremental value of external carotid artery stenosis progression (ECASP) along with internal carotid artery stenosis progression (ICASP) in predicting risk of ipsilateral IS/TIA in a cohort of patients with ACAS...
August 1, 2017: Vascular Medicine
https://www.readbyqxmd.com/read/28826727/randomized-comparison-of-femoropopliteal-artery-drug-eluting-balloons-and-drug-eluting-stents-forest-trial-study-protocol-for-a-randomized-controlled-trial
#19
Hidde Jongsma, Patricia van Mierlo-van den Broek, Farshad Imani, Daniel van den Heuvel, Jean-Paul P M de Vries, Bram Fioole
The optimal endovascular treatment for femoropopliteal arterial occlusive disease has yet to be assessed. Patency rates after uncoated balloon angioplasty are disappointing. Although stents have better outcomes, they also have limitations. Intra-arterial stenting may lead to stent thrombosis and flow pattern disruption, which may result in stent fracture or in-stent restenosis. In the past decade, drug-eluting balloons (DEBs) and drug-eluting stents (DESs) have been introduced, and both have been proven to possess antirestenotic features compared with conventional techniques...
August 18, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28821962/influence-of-aerobic-fitness-on-vasoreactivity-in-young-men
#20
Preston L Bell, Edward T Kelley, Stephanie M McCoy, Daniel P Credeur
Previous work has demonstrated a direct relationship between aerobic fitness and vasodilatory function (i.e., flow-mediated dilation; FMD); however, the relation between aerobic fitness and vasoconstrictor responsiveness (i.e., low flow-mediated constriction; L-FMC), and the overall vasoactive range (FMD + L-FMC) is unclear. PURPOSE: To test the hypothesis that L-FMC and the overall vasoactive range (FMD + L-FMC) will be related to aerobic fitness in young, healthy men. METHODS: Twenty men (age: 23 ± 5 years) were recruited, and divided evenly into a higher (HF) vs...
August 18, 2017: European Journal of Applied Physiology
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