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https://www.readbyqxmd.com/read/28550903/hemodynamic-effects-of-the-abdominal-aortic-and-junctional-tourniquet-in-a-hemorrhagic-swine-model
#1
Jason M Rall, James D Ross, Michael S Clemens, Jennifer M Cox, Theresea A Buckley, Jonathan J Morrison
BACKGROUND: Torso hemorrhage constitutes a leading cause of battlefield mortality. The Abdominal Aortic and Junctional Tourniquet (AAJT) uses a pneumatic bladder to compress the aorta reducing pelvic and lower extremity perfusion; however, concern exists over the risk of caval compression exacerbating hypotension after application. METHODS: Male swine (70-90 kg) were randomized into four groups of 10: presence or absence of hemorrhage and AAJT placement. After a 40% hemorrhage, a 15-min period of hypovolemia was observed before the AAJT application...
May 15, 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/28549029/a-contemporary-approach-to-reoperative-aortic-valve-surgery-when-is-less-more
#2
Deane E Smith, Michael S Koeckert, Patrick F Vining, Elias A Zias, Eugene A Grossi, Aubrey C Galloway
OBJECTIVE: Although the benefits of minimally invasive valvular surgery are well established, the applicability of extending these techniques to reoperative aortic valve surgery is unknown. We evaluated our experience with a minimally invasive approach to this patient population. METHODS: From January 2010 to September 2015, 21 patients underwent reoperative isolated aortic valve replacement via a minimally invasive approach by a single surgeon. All patients had preoperative evaluation with computerized tomography and coronary catheterization...
May 25, 2017: Innovations: Technology and Techniques in Cardiothoracic and Vascular Surgery
https://www.readbyqxmd.com/read/28548625/acute-procedural-outcomes-of-orbital-atherectomy-for-the-treatment-of-common-femoral-artery-disease-sub-analysis-of-the-confirm-registries
#3
Michael S Lee, Daniel Heikali, Jihad Mustapha, George Adams, Ehtisham Mahmud
This analysis compared the angiographic outcomes of patients treated with orbital atherectomy for calcified common femoral artery (CFA) and superficial femoral artery (SFA) disease. The ideal revascularization strategy for CFA disease is unknown. Endarterectomy has been considered the standard of care for CFA disease for over 50 years. Endovascular intervention is becoming more commonly used to revascularize the CFA given the advances in technology and the less invasive nature of the procedure. Patient demographics, lesion characteristics, and procedure data for all CONFIRM patients with at least one CFA lesion location ( n=147 patients; n=200 lesions) were compared to patients with at least one SFA lesion location ( n=1508 patients; n=2367 lesions)...
May 1, 2017: Vascular Medicine
https://www.readbyqxmd.com/read/28548473/initial-experience-with-the-e-ventus%C3%A2-stentgraft-for-endovascular-treatment-of-visceral-artery-aneurysms
#4
Susanne Anton, Erik Stahlberg, Marco Horn, Marcus Wiedner, Markus Kleemann, Joerg Barkhausen, Jan P Goltz
BACKGROUND: To evaluate the safety and efficacy of a novel balloon-expandable stentgraft for endovascular treatment of visceral artery aneurysms (VAA). METHODS: Between 9/2014 and 1/2017 seven patients (69+/-15y) with true (n=4) and false (n=3) VAAs were treated by implantation of balloon-expandable stentgrafts (E-ventus®, Jotec, Germany) using a trans-femoral (n=2) or -brachial (n=5) vascular access. The stentgraft was placed without prior passing of the landing zone with a sheath...
May 26, 2017: Journal of Cardiovascular Surgery
https://www.readbyqxmd.com/read/28546077/systemic-administration-of-l-kynurenine-sulfate-induces-cerebral-hypoperfusion-transients-in-adult-c57bl-6-mice
#5
Dániel Péter Varga, Ákos Menyhárt, Tamás Puskás, Ferenc Bari, Eszter Farkas, Zsolt Kis, László Vécsei, József Toldi, Levente Gellért
The kynurenine pathway is a cascade of enzymatic steps generating biologically active compounds. l-kynurenine (l-KYN) is a central metabolite of tryptophan degradation. In the mammalian brain, l-KYN is partly converted to kynurenic acid (KYNA), which exerts multiple effects on neurotransmission. Recently, l-KYN or one of its derivatives were attributed a direct role in the regulation of the systemic circulation. l-KYN dilates arterial blood vessels during sepsis in rats, while it increases cerebral blood flow (CBF) in awake rabbits...
May 22, 2017: Microvascular Research
https://www.readbyqxmd.com/read/28546042/occluded-superficial-femoral-artery-used-for-emergency-reconstruction-a-consecutive-case-series-about-the-proper-conduit-technique
#6
M S Marsman, A Kh Jahrome, F L Moll, G G Koning
INTRODUCTION: Deep wound infections in the groin region can result in an acute or life threatening condition. Especially when there is no suitable vein available because of many reasons (e.g. previous surgery, small vessel diameter). Synthetic prosthesis sometimes are not 'first-choice-technique' because of contamination or infection. It was ad hoc hypothesized in an acute setting that a segment of an occluded Superficial Femoral Artery (SFA) could be used as a conduit in combination with eversion technique, known from carotid surgery...
May 22, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28544277/use-of-a-vascular-closure-device-during-percutaneous-arterial-access-in-a-dog-with-impaired-hemostasis
#7
Brian A Scansen, Caitlin M Hokanson, Steven G Friedenberg, Hooman Khabiri
OBJECTIVE: To report the use of a vascular closure device (VCD) to provide rapid arterial hemostasis following percutaneous femoral arterial catheterization and diagnostic angiography in a thrombocytopenic and coagulopathic dog. CASE SUMMARY: A 6-year-old female spayed Kai Ken Tora dog presented after vehicular trauma. The dog was diagnosed with traumatic pneumothorax, degloving wounds of the right antebrachium, subcutaneous hemorrhage within the axillary tissues of the left thoracic limb, and anemia and thrombocytopenia secondary to acute hemorrhage...
May 23, 2017: Journal of Veterinary Emergency and Critical Care
https://www.readbyqxmd.com/read/28542113/increased-arterial-stiffness-in-nonalcoholic-fatty-liver-disease-a-systematic-review-and-meta-analysis
#8
Veeravich Jaruvongvanich, Jirat Chenbhanich, Anawin Sanguankeo, Pattara Rattanawong, Karn Wijarnpreecha, Sikarin Upala
BACKGROUND: Arterial function is a marker of early atherosclerotic changes and cardiovascular disease. Several studies have suggested the possible association between nonalcoholic fatty liver disease (NAFLD) and increased arterial stiffness. Thus, we conducted a systematic review and meta-analysis to better characterize this association. PATIENTS AND METHODS: A comprehensive search of the databases of the MEDLINE and EMBASE was carried out from inception through September 2016...
May 24, 2017: European Journal of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28541962/use-of-femoral-artery-ultrasound-during-intraarterial-chemotherapy-for-children-under-10-kg-with-retinoblastoma
#9
Ryan S Kim, Mark J Dannenbaum, Michael W Lin, Maria E Bretana, Deborah L Brown, Amy C Schefler
PURPOSE: To demonstrate the safety and efficacy of intraarterial chemotherapy (IAC) in small infants (<10 kg) with retinoblastoma. METHODS: Retrospective, consecutive, observational case series of patients treated with IAC. Femoral arterial access was obtained using a micropuncture kit and ultrasound guidance, which enabled direct visualization. Melphalan (1.5-5.0 mg), topotecan (0.3-2.0 mg), and/or carboplatin (30-40 mg) were used. Patients underwent adjuvant therapies including laser, cryotherapy, and intravitreal melphalan if persistent disease or recurrence was observed...
May 23, 2017: Retina
https://www.readbyqxmd.com/read/28541911/robust-sensing-of-distal-pulse-waveforms-on-a-modified-weighing-scale-for-ubiquitous-pulse-transit-time-measurement
#10
Andrew M Carek, Omer T Inan
The measurement of aortic pulse transit time (PTT), the time for the arterial pulse wave to travel from the carotid to the femoral artery, can provide valuable insight into cardiovascular health, specifically regarding arterial stiffness and blood pressure (BP). To measure aortic PTT, both proximal and distal arterial pulse timings are required. Recently, our group has demonstrated that the ballistocardiogram signal measured on a modified weighing scale can provide an unobtrusive, yet accurate, means of obtaining a proximal timing reference; however, there are no convenient, reliable methods to extract the distal timing from a subject standing on the modified weighing scale...
May 23, 2017: IEEE Transactions on Biomedical Circuits and Systems
https://www.readbyqxmd.com/read/28541592/cath-lab-costs-in-patients-undergoing-percutaneous-coronary-angioplasty-detailed-analysis-of-consecutive-procedures
#11
Beata Dziki, Izabela Miechowicz, Piotr Iwachów, Michał Kuzemczak, Piotr Kałmucki, Andrzej Szyszka, Artur Baszko, Tomasz Siminiak
BACKGROUND: Costs of percutaneous coronary interventions (PCI) have important impact on health care expenditures. Despite the present stress upon the cost-effectiveness issues in medicine, few comprehensive data exist on costs and resource use in different clinical settings. AIM: To assess catheterization laboratory costs related to use of drugs and single-use devices in patients undergoing PCI due to coronary artery disease. METHODS: Retrospective analysis of 1500 consecutive PCIs (radial approach, n=1103; femoral approach, n=397) performed due to myocardial infarction type STEMI (n=345) and NSTEMI (n=426) as well as unstable (UA; n=489) and (SA; n=241) angina was undertaken...
May 25, 2017: Kardiologia Polska
https://www.readbyqxmd.com/read/28541427/percutaneous-cannulation-for-cardiopulmonary-bypass-in-minimally-invasive-surgery-is-associated-with-reduced-groin-complications
#12
Alexandros Moschovas, Paulo A Amorim, Mariana Nold, Gloria Faerber, Mahmoud Diab, Tobias Buenger, Torsten Doenst
OBJECTIVES: Femoral cutdown is standard in most centres if groin cannulation is used for cardiopulmonary bypass in minimally invasive cardiac surgery (MICS). Arterial closure devices (ACDs) allow placement of larger cannulas percutaneously, but its benefit in MICS is unclear. We assessed our results with percutaneous groin cannulation using ACDs in comparison with conventional surgical access in patients undergoing MICS. METHODS: We reviewed 445 consecutive patients having undergone MICS between October 2010 and March 2015...
May 25, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/28540762/wall-shear-stress-and-near-wall-flows-in-the-stenosed-femoral-artery
#13
T Barber
Stenotic artery hemodynamics are often characertised by metrics including oscillatory shear index (OSI) and residence time (RT). This analysis was conducted to clarify the link between the near-wall flow behaviour and these resultant flow metrics. A computational simulation was conducted of a stenosed femoral artery, with an idealised representative geometry and a physiologically realistic inlet profile. The overall flow behaviour was characterised through consideration of the axial flow, which was non-dimensionalised against mean flow velocity...
May 25, 2017: Computer Methods in Biomechanics and Biomedical Engineering
https://www.readbyqxmd.com/read/28540632/corr-insights-%C3%A2-epiphyseal-arterial-network-and-inferior-retinacular-artery-seem-critical-to-femoral-head-perfusion-in-adults-with-femoral-neck-fractures
#14
Kodali Siva R K Prasad
No abstract text is available yet for this article.
May 24, 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28539296/-establishment-of-a-rabbit-model-of-small-diameter-vascular-graft-replacement
#15
Jia-Qing Zhang, Kun-Tang Chen, Fu-Wei Zhang, Shao-Bin Li, Yuan-Zhou Wu, Jing Feng, Wu-Jun Wang, Yu-Sheng Yan
OBJECTIVE: To establish an rabbit model that mimics the hemodynamics of the bypass graft after coronary artery bypass surgery. METHODS: Sixteen New Zealand rabbits were randomly divided into two groups for abdominal aortic artery replacement using a 3-cm-long ePTFE graft with an inner diameter 4 mm through an incision at 1/3 from the middle to the lower part of the abdomen (group A) or in the lower abdomen (group B). The general conditions of the rabbits, operative time, number of collateral vessels that needed to be ligated, rate of massive intraoperative bleeding, fluctuation of vascular anastomosis after surgery, patency rate of the graft on day 7 after the operation were compared between the two groups...
May 20, 2017: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
https://www.readbyqxmd.com/read/28538566/predicting-thrombosis-formation-in-1-mm-diameter-arterial-anastomoses-with-transit-time-ultrasound-technology
#16
Gabrielle Shaughness, Collin Blackburn, Alberto Ballestín, Yelena Akelina, Jeffrey A Ascherman
BACKGROUND: Thrombosis is a common source of failure in anastomoses, flaps, and vascular grafts. Ensuring vessel patency is critical to the success of microvascular procedures. Any tool that can accurately predict the patency of an anastomosis intraoperatively would enable the surgeon to detect and correct flow restrictions while the patient is still in the operating room. METHODS: The authors used transit-time ultrasound technology in this pilot study to investigate whether a minimal cutoff value for quantitative postoperative blood flow (in milliliters per minute) could be established that would reliably predict sustained vessel patency at 24 hours postoperatively...
June 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28538380/acute-effects-of-cinacalcet-on-arterial-stiffness-and-ventricular-function-in-hemodialysis-patients-a-randomized-double-blinded-crossover-study
#17
Aurélie Poulin, Pierre-Luc Bellemare, Catherine Fortier, Fabrice Mac-Way, Simon Desmeules, Karine Marquis, Valérie Gaudreault, Marcel Lebel, Mohsen Agharazii
BACKGROUND: Serum calcium concentration (Ca) plays an essential role in a vascular muscle tone and myocardial contractility. Previously, we showed that acutely lowering Ca by hemodialysis reduced arterial stiffness. Cinacalcet is a calcimimetic that lowers Ca and parathyroid hormone (PTH). The aim of the present study was to examine whether acute lowering of Ca by cinacalcet improves vascular stiffness and myocardial diastolic dysfunction. METHOD: This is a double-blinded randomized placebo-controlled crossover study that included 21 adult patients with end-stage kidney disease undergoing chronic hemodialysis...
May 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28538271/pulmonary-transplant-salvage-using-ultrasound-assisted-thrombolysis-of-subacute-occlusive-main-pulmonary-artery-embolus
#18
John R Spratt, Prashant Shrestha, Gabriel Loor, Jagadish M Patil, Marshall I Hertz, Gosta B Pettersson, Michael S Rosenberg
A 53-year-old woman who underwent bilateral lung transplantation 14 months before presented with 2 to 3 weeks of severe exertional dyspnea. Workup revealed a complete embolic occlusion of her left main pulmonary artery related to a femoral deep venous thrombosis. The occlusion did not respond to systemic anticoagulation, and a trial of catheter-directed thrombolysis was pursued. Flow to the left lower lobe was restored after 2 days of thromobolytic therapy. The patient is alive and well at more than 1 year of follow-up...
May 19, 2017: Innovations: Technology and Techniques in Cardiothoracic and Vascular Surgery
https://www.readbyqxmd.com/read/28535981/protective-effect-of-remote-limb-post-conditioning-via-upregulation-of-heme-oxygenase-1-bdnf-pathway-in-rat-model-of-cerebral-ischemic-reperfusion-injury
#19
Sruthi Ramagiri, Rajeev Taliyan
AIM: Remote ischemic Post Conditioning (RIPOC) has shown to be neuroprotective against cerebral Ischemic Reperfusion (I/R) injury. However, the RIPOC protection against I/R injury induced cognitive abnormalities still remains elusive. Abundant evidence from earlier studies highlighted the role of heme oxygenase-1 (HO-1) in neuronal survival in various neurodegenerative disorders. Thus, in the present study, we investigated the possible contribution of HO-1 in RIPOC mediated neuroprotection against cerebral I/R injury and associated cognitive deficits...
May 20, 2017: Brain Research
https://www.readbyqxmd.com/read/28530775/a-surgical-approach-to-iatrogenic-vascular-injuries-in-pediatric-cases
#20
Yüksel Beşir, Orhan Gökalp, Börteçin Eygi, Banu Bahriye Lafcı, Gamze Gökalp, Levent Yılık, Hasan İner, Ali Gürbüz
BACKGROUND: Surgical intervention is mandatory in many children who present with vascular trauma or in complicated cases after medical interventions. In this study, surgical interventions applied after vascular injuries in children were analyzed. METHODS: Between January 2002 and December 2012, 17 patients (aged under 18) who were admitted to the emergency room with vascular injuries were retrospectively analyzed. The data was collected through hospital records...
May 2017: Ulusal Travma Ve Acil Cerrahi Dergisi, Turkish Journal of Trauma & Emergency Surgery: TJTES
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