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https://www.readbyqxmd.com/read/27908817/clinical-outcome-after-endovascular-sealing-of-abdominal-aortic-aneurysms-evas-a-retrospective-cohort-study
#1
Maria Karouki, Charles Swaelens, Luigi Iazzolino, Richard G McWilliams, Robert K Fisher, Andrew England, Francesco Torella
PURPOSE: To present the clinical outcome of endovascular sealing of abdominal aortic aneurysms (EVAS) with the Nellix endoprosthesis in patients with abdominal aortic aneurysms treated in our institution. METHODS: This was a retrospective, single centre, observational cohort study. A departmental database was interrogated in order to extract demographics, clinical information and outcome of all patients treated with EVAS between December 2013 and December 2015. Outcome measures included technical success (successful device deployment and absence of any endoleak at completion angiography), mortality, major complications, incidence of endoleaks, aneurysm rupture and reintervention...
November 28, 2016: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/27908809/a-combination-of-thoracic-and-abdominal-grafts-to-treat-an-abdominal-aortic-aneurysm-with-hostile-proximal-neck
#2
Mafalda Massara, Roberto Prunella, Pasquale Gerardi, Giovanni De Caridi, Raffaele Serra, Stefano Notarstefano, Giovanni Impedovo
Endovascular aneurysm repair (EVAR) actually represents the treatment of choice for most patients affected by aneurysm of the abdominal aorta (AAA). However, the feasibility of EVAR depends on anatomical characteristics of abdominal aorta and ilio-femoral axis. We present the case of a 82-years old man affected by severe left hydronephrosis, kidney and ureteral tumor requiring nephrectomy, that presented also a very voluminous AAA with a large diameter (96 mm), presenting also with a large proximal neck (39 mm) and with a severe angulation of the proximal neck (> 60°)...
November 28, 2016: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/27908807/incomplete-expansion-of-chimney-stent-graft-during-chimney-thoracic-endovascular-aneurysm-repair-ch-tevar
#3
Athanasios Katsargyris, Domenico Spinelli, Kyriakos Oikonomou, Hozan Mufty, Eric Lg Verhoeven
PURPOSE: To report a technical complication during a chimney-thoracic endovascular aneurysm repair (Ch-TEVAR) procedure. CASE REPORT: A 77 year-old female patient underwent Ch-TEVAR for a symptomatic thoracic aortic aneurysm (TAA) with a short and angulated proximal neck. Deployment of the aortic stent-graft over the left subclavian artery (LSA) was followed by placement of a balloon expandable covered stent as a chimney for the LSA. Chimney deployment failed due to balloon perforation...
November 28, 2016: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/27876371/approaches-for-treatment-of-aortic-arch-aneurysm-a-numerical-study
#4
Asaph Nardi, Idit Avrahami
Aortic arch aneurysm is a complex pathology which requires coverage of one or more aortic arch vessels. In this study we explore the hemodynamic behavior of the aortic arch in aneurysmatic and treated cases with three currently available treatment approaches: Surgery Graft, hybrid Stent-Graft and chimney Stent Graft. The analysis included four models of the time-dependent fluid domains of aneurysmatic arch and of the surgery, hybrid and chimney endovascular techniques. Dimensions of the models are based on typical anatomy, and boundary conditions are based on typical physiological flow...
November 12, 2016: Journal of Biomechanics
https://www.readbyqxmd.com/read/27876182/colonization-of-black-smokers-by-hyperthermophilic-microorganisms
#5
REVIEW
Reinhard Wirth
Newly erupted black smokers (hydrothermal vent chimneys) are sterile during their formation, but they house hyperthermophiles in substantial amounts in later stages. No hard data exist on the mechanisms by which hyperthermophiles colonize newly erupted black smokers. Here I propose a scenario - based on various experimental data - for how hyperthermophiles colonize black smokers. Hyperthermophiles which are present in cold sea water in minute amounts are transferred by chance to the outside of black smokers and react within seconds to the high temperature by very fast movements...
November 18, 2016: Trends in Microbiology
https://www.readbyqxmd.com/read/27872319/classification-of-chimney-evar-related-endoleaks-insights-from-the-pericles-registry
#6
EDITORIAL
Konstantinos P Donas, Frank J Criado, Giovanni Torsello, Frank J Veith, David J Minion
No abstract text is available yet for this article.
November 21, 2016: Journal of Endovascular Therapy
https://www.readbyqxmd.com/read/27865636/transcaval-embolization-of-a-type-i-gutter-endoleak-after-three-vessel-chimney-endovascular-aneurysm-repair
#7
Tareq M Massimi, Zachary W Kostun, Edward Y Woo
Chimney endovascular aneurysm repair provides an endovascular treatment for complex aortic aneurysms. However, type I gutter endoleaks can complicate this approach and prevent full aneurysm exclusion. Treatment of these leaks can be challenging. We report successful embolization of a type I gutter endoleak after (chimney endovascular aneurysm repair) via a transcaval approach.
November 16, 2016: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/27864459/feasibility-and-technical-aspects-of-proximal-nellix-in-nellix-extension-for-late-caudal-endograft-migration
#8
Esmé J Donselaar, Andrew Holden, Aleksandra C Zoethout, Clark J Zeebregts, Michel M P J Reijnen
PURPOSE: To describe the feasibility and technical aspects of a proximal Nellix-in-Nellix extension to treat caudal stent-graft migration after endovascular aneurysm sealing (EVAS) in the in vitro and in vivo settings. METHODS: In vitro studies were designed (1) to assess inner diameters of Nellix-in-Nellix extensions after postdilation with 12-mm balloons and (2) to test wall apposition in tubes with different diameters using a Nellix-in-Nellix stent-graft that extended out of the original Nellix stent-graft lumen by 10, 20, 30, and 40 mm...
November 17, 2016: Journal of Endovascular Therapy
https://www.readbyqxmd.com/read/27863770/chimney-periscope-or-snorkel-technique-to-relieve-dysphagia
#9
EDITORIAL
Himanshu J Patel
No abstract text is available yet for this article.
October 24, 2016: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/27858151/chimney-sweeps-in-sweden-a-questionnaire-based-assessment-of-long-term-changes-in-work-conditions-and-current-eye-and-airway-symptoms
#10
Ayman Alhamdow, Per Gustavsson, Lars Rylander, Kristina Jakobsson, Håkan Tinnerberg, Karin Broberg
OBJECTIVES: To explore chimney sweeping work tasks, chimney sweeps' use of protective equipment, and type of fuel used by clients, over time. Further, to assess work-relatedness of current eye and airway symptoms. METHODS: In a cross-sectional study in 2011, male Swedish chimney sweeps (n = 483; age 21-69 years) answered a questionnaire about their occupational history and eye and airway symptoms. RESULTS: Between 1960 and 2010, black-soot-sweeping in private homes was the major task, although it decreased during the time period, for chimney sweeps...
November 17, 2016: International Archives of Occupational and Environmental Health
https://www.readbyqxmd.com/read/27847062/preemptive-aneurysm-sac-embolization-for-thoracic-endovascular-aortic-repair-with-inadequate-proximal-landing-zone
#11
Jacky Y K Ho, Randolph H L Wong, Simon C Y Chow, Peter S Y Yu, Micky W T Kwok, Malcolm J Underwood, Simon C H Yu
Thoracic endovascular aortic repair (TEVAR) offers a less invasive treatment for aortic arch aneurysms. Clinical challenges arise when there is inadequate proximal landing for zone 1 TEVAR, such that a median sternotomy with total aortic debranching is required before stent deployment. The chimney technique was reported as an alternative approach to stent the arch branches and avoid sternotomy, but it was still associated with considerable chance of a type IA endoleak. We report a case of aortic arch aneurysm with an inadequate proximal landing for zone 1 TEVAR that was treated with debranching of head and neck vessels followed by TEVAR and preemptive and targeted coil embolization of the arch aneurysmal sac...
December 2016: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/27798381/endovascular-aneurysm-sealing-evas-and-chimney-evas-in-the-treatment-of-failed-endovascular-aneurysm-repairs
#12
Marwan Youssef, Sebastian Zerwes, Rudolf Jakob, Oroa Salem, Fritz Dünschede, Christian F Vahl, Bernhard Dorweiler
PURPOSE: To assess the technical success and clinical outcome of reinterventions using the Nellix Endovascular Aneurysm Sealing (EVAS) System to treat complications after endovascular aneurysm repair (EVAR). METHODS: Fifteen consecutive patients (mean age 79 years; 14 men) with prior EVAR were treated with EVAS between March 2014 and December 2015 at 2 institutions. The failed prior EVARs included 13 bifurcated endografts, 1 bifurcated graft plus fenestrated cuff, and 1 tube endograft...
October 26, 2016: Journal of Endovascular Therapy
https://www.readbyqxmd.com/read/27792953/impacts-of-household-coal-and-biomass-combustion-on-indoor-and-ambient-air-quality-in-china-current-status-and-implication
#13
Qing Li, Jingkun Jiang, Shuxiao Wang, Krassi Rumchev, Ryan Mead-Hunter, Lidia Morawska, Jiming Hao
This review briefly introduces current status of indoor and ambient air pollution originating from household coal and biomass combustion in mainland China. Owing to low combustion efficiency, emissions of CO, PM2.5, black carbon (BC), and polycyclic aromatic hydrocarbons have significant adverse consequences for indoor and ambient air qualities, resulting in relative contributions of more than one-third in all anthropogenic emissions. Their contributions are higher in less economically developed regions, such as Guizhou (61% PM2...
October 25, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/27787489/chimney-versus-fenestrated-endovascular-aortic-repair-for-juxta-renal-aneurysms
#14
Caroline Caradu, Xavier Berard, Gérard Sassoust, Dominique Midy, Eric Ducasse
BACKGROUND: Anatomical constrains, high price and manufacturing delay restrict fenestrated (F)-endovascular aortic repair (EVAR) to elective patients in specialized centers. Chimney graft (CG)-EVAR offers an alternative but uncertainties remain over target vessel's patency and type Ia endoleaks (ELs). METHODS: We reviewed the literature reporting F-EVAR and CG-EVAR for juxtarenal aneurysms between January 2005 and July 2016. RESULTS: Fifteen studies on F-EVAR, 8 on CG-EVAR and 5 on both techniques were included; 1748 F-EVAR patients (3993 target vessels) vs 757 (1158 target vessels, 13% symptomatic and 7% ruptured)...
October 27, 2016: Journal of Cardiovascular Surgery
https://www.readbyqxmd.com/read/27778062/cytisine-inhibits-the-protective-activity-of-various-classical-and-novel-antiepileptic-drugs-against-6%C3%A2-hz-induced-psychomotor-seizures-in-mice
#15
Piotr Tutka, Maria W Kondrat-Wróbel, Katarzyna Zaluska, Dorota Żółkowska, Magdalena Florek-Łuszczki, Jarogniew J Łuszczki
BACKGROUND: Cytisine (CYT) is a partial agonist of brain α4β2 nicotinic acetylcholine receptors widely used in Central/Eastern Europe for smoking cessation. OBJECTIVES: This study evaluated the effect of CYT on the ability of classical and novel antiepileptic drugs to prevent seizures evoked by the 6-Hz test, a model of psychomotor seizures in mice thought as a model of drug-resistant seizures. RESULTS: CYT administered intraperitoneally (i...
October 25, 2016: Psychopharmacology
https://www.readbyqxmd.com/read/27760812/analysis-of-risk-factors-for-early-type-i-endoleaks-after-thoracic-endovascular-aneurysm-repair
#16
Yuji Kanaoka, Takao Ohki, Koji Maeda, Takeshi Baba
PURPOSE: To evaluate risk factors for early (<30 days) type I endoleak following thoracic endovascular aortic repair (TEVAR). METHODS: A retrospective study was conducted of 439 consecutive patients (mean age 74.0±10.0 years; 333 men) who underwent TEVAR at a single center between June 2006 and June 2013. Pathologies included 237 aortic arch aneurysms and 202 descending thoracic aortic aneurysms (dTAA). Maximum TAA diameter was 63.6±13.7 mm. Among the distal aortic arch aneurysms, 124 required coverage of the left subclavian artery (LSA), while the remaining 113 arch aneurysms had debranching (n=40), the chimney technique (n=52), and a branched stent-graft (n=13)...
October 19, 2016: Journal of Endovascular Therapy
https://www.readbyqxmd.com/read/27751579/inducing-false-lumen-thrombosis-for-retrograde-type-a-aortic-dissection
#17
Rongjie Zhang, Jian Zhou, Jiaxuan Feng, Zhiqing Zhao, Junjun Liu, Zhenjiang Li, Rui Feng, Zaiping Jing
BACKGROUND: How to choose the proximal landing zone in endovascular interventions for a patient with a patent retrograde false lumen in dissection of the ascending aorta and aortic arch remains unclear. This study sought to report the safety and efficiency of inducing thrombosis of the retrograde false lumen to enhance a proximal landing zone to treat retrograde type A aortic dissection. METHODS: This study included 9 patients with retrograde type A aortic dissection treated with a 2-stage operation strategy between January 2015 and January 2016...
September 22, 2016: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/27748850/occupational-exposure-to-carcinogens-benzene-pesticides-and-fibers-review
#18
Luca Falzone, Andrea Marconi, Carla Loreto, Sabrina Franco, Demetrios A Spandidos, Massimo Libra
It is well known that the occupational exposure to contaminants and carcinogens leads to the development of cancer in exposed workers. In the 18th century, Percivall Pott was the first to hypothesize that chronic exposure to dust in the London chimney sweeps was associated with an increased risk of developing cancer. Subsequently a growing body of evidence indicated that other physical factors were also responsible for oncogenic mutations. Over the past decades, many carcinogens have been found in the occupational environment and their presence is often associated with an increased incidence of cancer...
October 3, 2016: Molecular Medicine Reports
https://www.readbyqxmd.com/read/27743807/classification-of-gutter-type-in-parallel-stenting-during-endovascular-aortic-aneurysm-repair
#19
Simon P Overeem, Johannes T Boersen, Richte C L Schuurmann, Erik Groot Jebbink, Cornelis H Slump, Michel M P J Reijnen, Jean-Paul P M de Vries
OBJECTIVE: Gutters can be described as the loss of continuous apposition between the main body of the endograft, the chimney stent graft, and the aortic wall. Gutters have been associated with increased risk of type IA endoleaks and are considered to be the Achilles' heel of chimney endovascular aneurysm repair (ch-EVAR). However, there is no classification yet to classify and quantify gutter types after ch-EVAR. METHODS: Different gutter types can be distinguished by their morphologic appearance in two- and three-dimensional views and reconstructed slices perpendicular to the center lumen line...
October 12, 2016: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/27742898/initial-experience-with-covered-endovascular-reconstruction-of-the-aortic-bifurcation-in-conjunction-with-chimney-grafts
#20
Martijn L Dijkstra, Peter C J M Goverde, Andrew Holden, Clark J Zeebregts, Michel M P J Reijnen
PURPOSE: To show feasibility of the covered endovascular repair of the aortic bifurcation (CERAB) technique in conjunction with chimney grafts in aortic side branches for complex aortoiliac occlusive disease. METHODS: Two European centers and one facility located in New Zealand participated in a retrospective observational study that enrolled 14 consecutive patients (mean age 61.2±8.9 years; 11 men) treated with CERAB in conjunction with chimney graft(s) between December 2012 and May 2015...
October 14, 2016: Journal of Endovascular Therapy
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