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Naomi Larsen, Katharina Oberbeck, Rodrigo Lima de Miranda, Jens Trentmann, Jawid Madjidyar, Eckhard Quandt, Olav Jansen
PURPOSE:  Various stent retrievers differing in stent design and mechanical properties are currently available for the treatment of ischemic stroke. We conducted this in vitro study to compare the efficacy, embolism rate, and safety of commercially available stent retrievers and prototypes. MATERIALS AND METHODS:  Whole blood thrombi were produced in a Chandler loop. The thrombi were inserted into the curved M1 segment of a silicone model of the anterior cerebral circulation...
June 18, 2018: RöFo: Fortschritte Auf Dem Gebiete der Röntgenstrahlen und der Nuklearmedizin
Funlayo Odejinmi, Rebecca Mallick, Sharahzed Abdelmoumene
No abstract text is available yet for this article.
June 18, 2018: RöFo: Fortschritte Auf Dem Gebiete der Röntgenstrahlen und der Nuklearmedizin
Arash Salemi, Andrea De Micheli, Abdullah Aftab, Adham Elmously, Regis Chang, S Chiu Wong, Berhane M Worku
OBJECTIVES: Left atrial appendage thrombus (LAT) was an exclusion criterion in the seminal transcatheter aortic valve replacement (TAVR) trials; however, such patients do undergo TAVR in the 'real-world' setting. This study sought to analyse outcomes after TAVR in patients with LAT or spontaneous echo contrast (SEC). METHODS: All patients undergoing TAVR at our institution between March 2009 and December 2014 were prospectively analysed. The presence of LAT or SEC was determined via a retrospective chart review...
June 14, 2018: Interactive Cardiovascular and Thoracic Surgery
Vladimir Živković, Danica Cvetković, Slobodan Nikolić
No abstract text is available yet for this article.
June 14, 2018: American Journal of Forensic Medicine and Pathology
Marianne Brodmann, Andrew Holden, Thomas Zeller
PURPOSE: To evaluate the safety and feasibility of treating calcified infrapopliteal stenoses using an intravascular lithotripsy (IVL) system. METHODS: The Disrupt BTK study was a prospective, nonrandomized, multicenter, feasibility, and safety trial that enrolled 20 patients (mean age 79.0±9.6 years; 14 men) at 3 participating sites ( identifier NCT02911623). Fifteen patients had Rutherford category 5 ischemia, and all patients had moderate to severe below-the-knee arterial calcification...
June 1, 2018: Journal of Endovascular Therapy
Fida Charif, Mohamad Jihad Mansour, Righab Hamdan, Claudette Najjar, Pierre Nassar, Mohamad Issa, Elie Chammas, Mohamad Saab
Free-floating right heart thrombus (RHT) is an extreme medical emergency in the context of acute massive pulmonary embolism (PE). Despite the advances in early diagnosis, the management is still very debatable due to lack of consensus. We reported the case of a 66-year-old male, with a history of moderate renal dysfunction and dilated cardiomyopathy, who presented to the emergency department for acute dyspnea. His angiographic magnetic resonance imaging revealed bilateral extensive PE. Transthoracic echocardiography showed RHT with moderate right ventricular dysfunction and pulmonary hypertension...
April 2018: Journal of Cardiovascular Echography
Albin Lobo, José M Torres-Ruiz, Regis Burlett, Cedric Lemaire, Camille Parise, Claire Francioni, Laura Truffaut, Ivana Tomášková, Jon Kehlet Hansen, Erik Dahl Kjær, Antoine Kremer, Sylvain Delzon
The genus Quercus comprises important species in forestry not only for their productive value but also for their ability to withstand drought. Hence an evaluation of inter- and intraspecific variation in drought tolerance is important for selecting the best adapted species and provenances for future afforestation. The presence of long vessels makes it difficult to assess xylem vulnerability to embolism in oak. Thanks to the development of an in situ flow centrifuge equipped with a large rotor, we quantified (i) the between species variability of embolism resistance in four native and two exotic species of oaks in Europe and (ii) the within species variability in Quercus petraea ...
September 15, 2018: Forest Ecology and Management
E Perdikakis, I Fezoulidis, V Tzortzis, C Rountas
PURPOSE: To present anatomical variations of left internal spermatic vein and a comparison between treatments with hydrogel-coated and non-coated platinum coils in patients with varicocele. MATERIALS AND METHODS: A total of 153 men (mean age, 27.5±6.7 [SD] years; range: 18-45 years) with left sided varicocele underwent coil embolization. Anatomic variants of gonadal vein were categorized into five subtypes (I-V). Additional venous collaterals were also recorded...
June 14, 2018: Diagnostic and Interventional Imaging
E Jambon, A Hocquelet, F Petitpierre, Y Le Bras, C Marcelin, V Dubuisson, N Grenier, F Cornelis
PURPOSE: To compare intervention duration and fluoroscopy time for proximal embolization of splenic arteries in acute trauma using the Penumbra occlusion device (POD® ), coils or Amplatzer™ vascular plug (AVP). MATERIAL AND METHODS: A total of 29 patients with splenic injury without vascular injury who were treated by proximal splenic artery embolization using POD® (n=12), coils (n=9) or AVP (n=8) were retrospectively included. There were 25 men and 4 women with a median age of 34 years (range: 10-69 years)...
June 14, 2018: Diagnostic and Interventional Imaging
Tobias Franiel, René Aschenbach, Sarah Trupp, Thomas Lehmann, Friedrich-Carl von Rundstedt, Marc-Oliver Grimm, Ulf Teichgräber
PURPOSE: To evaluate clinical outcomes and possible MR imaging predictors of clinical success after prostatic artery embolization (PAE) with 250-μm hydrogel particles. MATERIALS AND METHODS: During a span of 1.5 years, 30 patients with moderate to severe lower urinary tract symptoms were included in a prospective, nonrandomized study. Embolization of at least one prostatic artery was considered as technical success. International Prostate Symptom Score (IPSS), quality of life (QOL), peak urinary flow rate (Qmax ), residual urine volume, prostate volume, prostate-specific antigen level, and International Index of Erectile Function (IIEF) were recorded at baseline and at 1, 3, and 6 months after PAE...
June 14, 2018: Journal of Vascular and Interventional Radiology: JVIR
M Barras, E Pearson, I Cousin, C Le Rouzic, M Thepaut, J-C Gentric, J-M Roue, S Yevich, P de Vries
Penetrating laceration injury in the pediatric population may present as an acute or delayed life-threatening injury. Although emergent intra-arterial embolization is commonly utilized in adults, few cases have been reported for children. Surgical treatment for severe renal laceration injuries may require complete nephrectomy; an unfortunate outcome for a pediatric patient if a renal-preserving alternative is feasible. We present a case of penetrating renal laceration in a 10-year-old boy treated with intra-arterial embolization of the lacerated dominant renal artery and subsequent renal perfusion by an uninjured accessory renal artery allowing for renal preservation...
June 14, 2018: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
William T N Culp
Whenever possible, surgical removal of tumors should be pursued because this likely allows for the best possible outcome for a particular patient; however, this may not be pursued for various reasons. In those situations, interventional radiology (IR) options can be considered as definitive therapy or palliation. Locoregional therapies such as intra-arterial chemotherapy and embolization/chemoembolization, while rarely reported in veterinary medicine, offer an alternative minimally invasive treatment option...
June 14, 2018: Veterinary Clinics of North America. Small Animal Practice
Marilyn Dunn, Brian A Scansen
Vascular obstructions in small animals have numerous etiologies and variable signs depending on location and chronicity. The decision to treat and by which method (medical, interventional, surgical) can be challenging. A combined approach of catheter-directed thrombolysis, angioplasty, or vascular stenting may be most appropriate for acute thrombosis, though optimal therapeutic strategies are undefined in this population. The role of embolic trapping devices in animals is uncertain. Chronic cases of vascular obstruction, with collateral flow and neither ischemia nor venous congestion manifest, may be conservatively managed...
June 15, 2018: Veterinary Clinics of North America. Small Animal Practice
Kenny Oh, Anil Hingorani
OBJECTIVE: Placement of inferior vena cava (IVC) filters is a controversial focus of medical malpractice. Clinicians currently have little information to guide them regarding key issues and outcomes in litigation. In this retrospective legal case review, we analyzed the factors associated with malpractice actions involving IVC filters. METHODS: The legal databases LexisNexis and Westlaw were searched from 1967 to 2016 for all published legal cases in the United States involving placement of IVC filters...
July 2018: Journal of Vascular Surgery. Venous and Lymphatic Disorders
Efthymios D Avgerinos, Zein Saadeddin, Adham N Abou Ali, Larry Fish, Catalin Toma, Maria Chaer, Belinda N Rivera-Lebron, Rabih A Chaer
OBJECTIVE: During the past few years, there has been a surge in the use of catheter-directed thrombolysis (CDT) for acute pulmonary embolism (PE), in the form of either standard CDT or ultrasound-assisted CDT (usCDT). This is a systematic review and meta-analysis of all published series on contemporary CDT for acute PE seeking to determine their clinical efficacy, stratifying by PE severity and CDT modality. METHODS: A comprehensive MEDLINE and Embase search was performed to identify studies that reported outcomes of CDT for acute PE published from 2009 to July 2017...
July 2018: Journal of Vascular Surgery. Venous and Lymphatic Disorders
Osman Ahmed, Mohamad Omar Hadied, Sreekumar Madassery
The VenaTech LGM (B. Braun, Melsungen, Germany) inferior vena cava (IVC) filter was designed as a permanent IVC filter to prevent clot migration and pulmonary embolism. This filter has been discontinued, but thousands remain implanted within patients who incur the added long-term risks of an indwelling IVC filter. We present a case of successful removal of a permanent VenaTech LGM IVC filter using a novel technique in a patient in whom filter placement was no longer indicated. The conical portion of the filter was removed intact, and the vertical struts were intentionally left embedded extravascularly within the caval wall...
July 2018: Journal of Vascular Surgery. Venous and Lymphatic Disorders
Joseph Reis, Ahmad I Alomari, Cameron C Trenor, Denise M Adams, Steven J Fishman, Samantha A Spencer, Raja Shaikh, Anna P Lillis, Murali K Surnedi, Gulraiz Chaudry
OBJECTIVE: Patients with Klippel-Trénaunay syndrome (KTS) and congenital lipomatous overgrowth, vascular malformations, epidermal nevi, and spinal/skeletal abnormalities (CLOVES) syndrome have central phlebectasia and enlarged persistent embryonic veins that are often incompetent and prone to thromboembolism. The purpose of the study was to determine the presence of phlebectasia and the incidence of symptomatic pulmonary embolism (PE). METHODS: A retrospective review was conducted of patients referred to the Vascular Anomalies Center at our institution during a 21-year period who were diagnosed with KTS and CLOVES syndrome...
July 2018: Journal of Vascular Surgery. Venous and Lymphatic Disorders
Song Jin, Ziqiang Sun, Xiaoqin Li, Tao Jian, Xing Jin, Sheng Li, Guodong Wang, Chong Ma, Kai Cui, Peng Xu
OBJECTIVE: Pulmonary embolism (PE) is the most common complication of deep venous thrombosis (DVT). May-Thurner syndrome (MTS) is known to increase the risk of DVT, but an association between MTS and PE has not been established. This study investigated an association between MTS and the risk of PE in patients with acute lower extremity DVT. METHODS: Between June 2014 and September 2016, there were 112 patients with DVT at our hospital who underwent venous angiography and computed tomography pulmonary angiography...
July 2018: Journal of Vascular Surgery. Venous and Lymphatic Disorders
Richard A Armstrong, Andrew Macallister, Benjamin Walton, Julian Thompson
PURPOSE: Management of traumatic splenic injury may be operative or non-operative (including embolization and conservative management). Traditionally, haemodynamic instability has been an indication for operative intervention. We aimed to report our experience of managing traumatic splenic injury at a regional major trauma centre in the UK over a 4-year period, with a particular focus on the non-operative management (NOM) of haemodynamically unstable patients. METHODS: All patients with splenic injuries admitted to North Bristol NHS Trust from April 2012 to March 2016 were included...
June 16, 2018: European Journal of Trauma and Emergency Surgery: Official Publication of the European Trauma Society
Orlando M Diaz, Maria M Toledo, John O F Roehm, Richard P Klucznik, Ponraj Chinnadurai, Gloria Viviana Lopez, Gavin W Britz
PURPOSE: To report percutaneous transcranial puncture, embolisation and occlusion of a very symptomatic hypoglossal canal/anterior condylar vein dural arteriovenous fistula (DAVF) using syngo iGuide navigational software in a patient in whom transarterial and transvenous embolisation and surgery had failed. METHODS: After unsuccessful arterial and venous embolisation and surgical treatment of a symptomatic hypoglossal canal DAVF, a 47-year-old man was transferred for further management...
June 16, 2018: Journal of Neurointerventional Surgery
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