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https://www.readbyqxmd.com/read/28329189/mid-term-results-of-zone-0-thoracic-endovascular-aneurysm-repair-after-ascending-aorta-wrapping-and-supra-aortic-debranching-in-high-risk-patients
#1
Felice Pecoraro, Mario Lachat, Michael Hofmann, Neal S Cayne, Lyubov Chaykovska, Zoran Rancic, Gilbert Puippe, Thomas Pfammatter, Nicola Mangialardi, Frank J Veith, Dominique Bettex, Francesco Maisano, Thomas A Neff
OBJECTIVES: Surgical repair of aneurysmal disease involving the ascending aorta, aortic arch and eventually the descending aorta is generally associated with significant morbidity and mortality. A less invasive approach with the ascending wrapping technique (WT), supra-aortic vessel debranching (SADB) and thoracic endovascular aneurysm repair (TEVAR) in zone 0 was developed to reduce the associated risk in these patients. METHODS: During a 10-year period, consecutive patients treated by the ascending WT, SADB and TEVAR in zone 0 were included...
March 8, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/28320639/exposure-to-polycyclic-aromatic-hydrocarbons-and-volatile-organic-compounds-among-recently-pregnant-rural-guatemalan-women-cooking-and-heating-with-solid-fuels
#2
John R Weinstein, Renée Asteria-Peñaloza, Anaité Diaz-Artiga, Gilberto Davila, S Katharine Hammond, Ian T Ryde, Joel N Meyer, Neal Benowitz, Lisa M Thompson
BACKGROUND: Household air pollution is a major contributor to death and disability worldwide. Over 95% of rural Guatemalan households use woodstoves for cooking or heating. Woodsmoke contains carcinogenic or fetotoxic polycyclic aromatic hydrocarbons (PAHs) and volatile organic compounds (VOCs). Increased PAHs and VOCs have been shown to increase levels of oxidative stress. OBJECTIVE: We examined PAH and VOC exposures among recently pregnant rural Guatemalan women exposed to woodsmoke and compared exposures to levels seen occupationally or among smokers...
March 10, 2017: International Journal of Hygiene and Environmental Health
https://www.readbyqxmd.com/read/28288887/transapical-endovascular-repair-of-thoracic-aortic-pathology
#3
Takashi Murakami, Shinsuke Nishimura, Mitsuharu Hosono, Yoshitsugu Nakamura, Etsuji Sohgawa, Yukimasa Sakai, Toshihiko Shibata
BACKGROUND: Alternative access for thoracic endovascular aortic repair (TEVAR) has been explored for patients with unsuitable femoral and iliac access, but few cases of transapical access have been described. We report our experience with transapical access for various aortic pathologies. METHODS: We reviewed six cases undergoing transapical access for endovascular repair of thoracic aortic pathology between December 2013 and August 2015. Five patients had an aortic arch aneurysm and 1 patient presented with Stanford type A subacute aortic dissection...
March 10, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28285622/real-life-effectiveness-of-improved-stoves-and-clean-fuels-in-reducing-pm2-5-and-co-systematic-review-and-meta-analysis
#4
REVIEW
Daniel Pope, Nigel Bruce, Mukesh Dherani, Kirstie Jagoe, Eva Rehfuess
BACKGROUND: 2.8 billion people cook with solid fuels, resulting in almost 3 million premature deaths from household air pollution (HAP). To date, no systematic assessment of impacts on HAP of 'improved' stove and clean fuel interventions has been conducted. OBJECTIVE: This systematic review synthesizes evidence for changes in kitchen and personal PM2.5 and carbon monoxide (CO) following introduction of 'improved' solid fuel stoves and cleaner fuels in low- and middle-income countries (LMIC)...
April 2017: Environment International
https://www.readbyqxmd.com/read/28269195/mechanical-performances-of-endovascular-aneurysm-repair-strategies-with-main-aortic-and-chimney-grafts
#5
Wei-Ling Chen, Bing-Feng Huang, Ming-Long Yeh, Chung-Dann Kan
The use of endovascular aneurysm repair (EVAR) strategies for the treatment of complex aortic pathologies is a major area of investigation in modern surgery. EVAR strategies using fenestrated or branched devices provide alternatives to open surgery for patients with aortic pathologies with visceral branch involvement, but their applications have some major limitations. To extend endovascular repair to patients whose anatomy is unfit for branched or fenestrated stent grafts or open repair, parallel graft techniques using chimney grafts (CGs) have been proposed...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28259824/endovascular-management-of-proximal-fixation-loss-using-parallel-stent-grafting-techniques-to-preserve-visceral-flow
#6
Adam Tanious, Mathew Wooster, Andrew Jung, Peter Nelson, Martin R Back, Murray Shames
INTRODUCTION: and Objectives: Proximal fixation loss following endovascular aortic aneurysm repair (EVAR) creates a clinical dilemma. Typically endovascular salvage requires adequate aortic neck below the renal arteries, in cases with no infrarenal neck proximal extension into the paravisceral aorta using parallel grafts provides an alternative to open graft explant. We present our experience at a tertiary care center with endovascular management of proximal fixation loss following EVAR using parallel stent grafting techniques to preserve renal and visceral branches...
March 1, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28258015/influence-of-anatomic-angulations-in-chimney-and-fenestrated-endovascular-aneurysm-repair
#7
Caroline Caradu, Xavier Bérard, Dominique Midy, Eric Ducasse
BACKGROUND: Fenestrated (F-) endovascular aneurysm repair (EVAR)'s lack of widespread availability encouraged alternative strategies. Chimney graft (CG)-EVAR has spread when costs, manufacturing delays or anatomy preclude F-EVAR. Our objective was to evaluate CG-EVAR and F-EVAR's outcomes depending on the angulation of target renal arteries and hostility of iliac accesses to determine the potential impact of a choice made between the two techniques based upon preoperative anatomic criteria...
February 28, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28242401/surgical-treatment-of-endotension-after-chimney-endovascular-repair-of-a-symptomatic-juxtarenal-aneurysm
#8
Konstantinos P Donas, Elena Marchiori, Mirjam Inchingolo, Giovanni Torsello
Endoleaks and persistent aneurysm sac expansion, also known as endotension, remain the Achilles heel of EVAR. The present article reports on a surgical treatment of one patient with endotension after chimney EVAR for a symptomatic juxtarenal aortic aneurysm. The surgical exploration revealed no signs of inflammation or infection and excluded any endoleak, confirming the term "endotension". After one year was confirmed the absence of sac expansion or endoleak, with stable maximum diameter. Regarding therapeutic options, a nonoperative approach is recommended in asymptomatic patients...
February 24, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28238925/early-experience-with-snorkels-and-chimneys-for-expanding-the-indications-for-use-of-evar
#9
Mathew Wooster, Bruce Zwiebel, Martin Back, Murray Shames
OBJECTIVE: While fenestrated and branched devices for juxtarenal and parvisceral aneurysms are available worldwide, limited US availability has perpetuated widespread utilization of adjunctive techniques for the endovascular treatment of these aneurysms. The objective of the study is to report on the technical feasibility and short-term durability of parallel grafts for juxtarenal and paravisceral aneurysms. METHODS: We performed a retrospective review of a prospectively collected EVAR database, including all patients that underwent a parallel stent procedure...
February 23, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28227425/mechanical-performances-of-endovascular-aneurysm-repair-strategies-with-main-aortic-and-chimney-grafts
#10
Wei-Ling Chen, Bing-Feng Huang, Ming-Long Yeh, Chung-Dann Kan, Wei-Ling Chen, Bing-Feng Huang, Ming-Long Yeh, Chung-Dann Kan, Ming-Long Yeh, Bing-Feng Huang, Chung-Dann Kan, Wei-Ling Chen
The use of endovascular aneurysm repair (EVAR) strategies for the treatment of complex aortic pathologies is a major area of investigation in modern surgery. EVAR strategies using fenestrated or branched devices provide alternatives to open surgery for patients with aortic pathologies with visceral branch involvement, but their applications have some major limitations. To extend endovascular repair to patients whose anatomy is unfit for branched or fenestrated stent grafts or open repair, parallel graft techniques using chimney grafts (CGs) have been proposed...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28219557/total-endovascular-repair-of-post-dissection-aortic-arch-aneurysm-with-chimney-technique
#11
Wei-Tao Liang, Su Wang, Jian Zhou, Chen-Jun Han, Qiang Liu, Xiao-Yun Wu, Wang-Fu Zang
Open surgery remains the standard procedure for treatment of aortic arch pathologies. However, total endovascular repair can be a safe option for patients who are poor candidates for surgery because of compromised physiology. We report the case of a 63-year-old man with a post-dissection aortic arch aneurysm. We repaired the aneurysm using thoracic endovascular aortic repair (TEVAR) and used the chimney technique to reconstruct the supra-aortic branches. The patient is doing well after 12-month follow-up, demonstrating that TEVAR with the chimney technique can be used successfully for the treatment of post-dissection arch aneurysm...
March 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28216358/outcomes-of-thoracic-endovascular-aortic-repair-using-aortic-arch-chimney-stents-in-high-risk-patients
#12
Igor Voskresensky, Salvatore T Scali, Robert J Feezor, Javairiah Fatima, Kristina A Giles, Rosamaria Tricarico, Scott A Berceli, Adam W Beck
BACKGROUND: Aortic arch disease is a challenging clinical problem, especially in high-risk patients, in whom open repair can have morbidity and mortality rates of 30% to 40% and 2% to 20%, respectively. Aortic arch chimney (AAC) stents used during thoracic endovascular aortic repair (TEVAR) are a less invasive treatment strategy than open repair, but the current literature is inconclusive about the role of this technology. The focus of this analysis is on our experience with TEVAR and AAC stents...
February 16, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28202812/three-dimensional-trajectories-and-network-analyses-of-group-behaviour-within-chimney-swift-flocks-during-approaches-to-the-roost
#13
Dennis J Evangelista, Dylan D Ray, Sathish K Raja, Tyson L Hedrick
Chimney swifts (Chaetura pelagica) are highly manoeuvrable birds notable for roosting overnight in chimneys, in groups of hundreds or thousands of birds, before and during their autumn migration. At dusk, birds gather in large numbers from surrounding areas near a roost site. The whole flock then employs an orderly, but dynamic, circling approach pattern before rapidly entering a small aperture en masse We recorded the three-dimensional trajectories of ≈1 800 individual birds during a 30 min period encompassing flock formation, circling, and landing, and used these trajectories to test several hypotheses relating to flock or group behaviour...
February 22, 2017: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/28197130/mineralizing-filamentous-bacteria-from-the-prony-bay-hydrothermal-field-give-new-insights-into-the-functioning-of-serpentinization-based-subseafloor-ecosystems
#14
Céline Pisapia, Emmanuelle Gérard, Martine Gérard, Léna Lecourt, Susan Q Lang, Bernard Pelletier, Claude E Payri, Christophe Monnin, Linda Guentas, Anne Postec, Marianne Quéméneur, Gaël Erauso, Bénédicte Ménez
Despite their potential importance as analogs of primitive microbial metabolisms, the knowledge of the structure and functioning of the deep ecosystems associated with serpentinizing environments is hampered by the lack of accessibility to relevant systems. These hyperalkaline environments are depleted in dissolved inorganic carbon (DIC), making the carbon sources and assimilation pathways in the associated ecosystems highly enigmatic. The Prony Bay Hydrothermal Field (PHF) is an active serpentinization site where, similar to Lost City (Mid-Atlantic Ridge), high-pH fluids rich in H2 and CH4 are discharged from carbonate chimneys at the seafloor, but in a shallower lagoonal environment...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28169221/gaussian-plume-atmospheric-modelling-and-radiation-exposure-calculations-following-the-cremation-of-a-deceased-thyroid-cancer-patient-treated-with-iodine-131
#15
Phillipe J Calais
Shortly after treatment with 7200 MBq of (131)I, a thyroid cancer patient died and was subsequently cremated. Calculations of the atmospheric emissions of (131)I from the crematorium flue were performed using a standard atmospheric pollution Gaussian Plume Dispersal model. Estimates of whole-body and thyroid dose of those potentially exposed were made using OLINDA/EXM dosimetry software. Under the meteorological conditions prevalent at the time of the cremation, and depending on the actual release rate of the (131)I, the Western Australian legal limit of 3...
March 20, 2017: Journal of Radiological Protection: Official Journal of the Society for Radiological Protection
https://www.readbyqxmd.com/read/28161566/monocentric-evaluation-of-chimney-versus-fenestrated-endovascular-aortic-repair-for-juxtarenal-abdominal-aortic-aneurysm
#16
Caroline Caradu, Julien Morin, Mathieu Poirier, Dominique Midy, Eric Ducasse
BACKGROUND: With approval of on-label fenestrated (F-) endovascular aortic repair (EVAR), concerns regarding long-term patency and endoleaks (ELs) after chimney graft (CG)-EVAR were raised. To add supportive data on the value of this technique, we chose to report the midterm results of CG-EVAR in a single center with standardized methods and to compare them to F-EVAR. METHODS: A retrospective analysis of prospectively gathered data from January 2010 to January 2015 was conducted, and patients with excessive comorbidities for open repair treated by CG-EVAR or F-EVAR were included...
February 2, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28128541/fenestrated-and-chimney-endovascular-aneurysm-repair-versus-open-surgery-for-complex-abdominal-aortic-aneurysms
#17
Vicente A Sala-Almonacil, José M Zaragozá-García, Mauricio Ramírez-Montoya, Vicente Molina-Nácher, Inmaculada Martínez-Perelló, Francisco J Gómez-Palonés
BACKGROUND: Many patients with complex abdominal aortic aneurysms are unfit for open repair. New endovascular technologies and bailout techniques are being used for managing those complex anatomies. The purpose of this study is to compare the results obtained with advanced endovascular aneurysm repair techniques (fenestrated and chimney endografts) to those obtained with open repair for the treatment of complex abdominal aortic aneurysms not anatomically suitable for standard endovascular exclusion (infrarenal neck <10 mm, juxtarenal, suprarenal and Crawford's type IV thoracoabdominal aneurysms)...
January 27, 2017: Journal of Cardiovascular Surgery
https://www.readbyqxmd.com/read/28115801/review-of-treatment-for-thoracoabdominal-aortic-aneurysm-and-the-modern-experience-of-multi-branched-endograft-in-taiwan
#18
REVIEW
Ting Chao Lin, Chun Che Shih
Thoracoabdominal aortic aneurysm (TAAA) is a complicated aortic disease. Most treatments for other aortic aneurysms have already shifted from conventional open surgery to endovascular operation; but for TAAA, open surgery remains the gold standard treatment. Several alternative treatments such as hybrid operation as well as endovascular techniques are utilized for the treatment of TAAA. Some of the procedures combine off-the-shelf devices such as the chimney procedure. Some other procedures required custom-made specialized stent grafts...
January 2017: Acta Cardiologica Sinica
https://www.readbyqxmd.com/read/28097196/chimney-technique-with-nellix-endovascular-aneurysm-sealing-system-in-a-patient-with-single-kidney-and-juxtarenal-abdominal-aortic-aneurysm
#19
Kaspars Kisis, Janis Savlovskis, Marcis Gedins, Natalija Ezite, Edgars Zellans, Dainis Krievins
We present a saccular asymptomatic juxtarenal abdominal aortic aneurysm in a 70-year-old male with a very short left renal artery supplying the only kidney. The case was successfully treated with the Nellix EndoVascular Aneurysm Sealing system combined with a chimney technique.
August 2016: Aorta (Stamford, Conn.)
https://www.readbyqxmd.com/read/28094028/annual-10-month-aerial-life-phase-in-the-common-swift-apus-apus
#20
Anders Hedenström, Gabriel Norevik, Kajsa Warfvinge, Arne Andersson, Johan Bäckman, Susanne Åkesson
The common swift (Apus apus) is adapted to an aerial lifestyle, where food and nest material are captured in the air. Observations have prompted scientists to hypothesize that swifts stay airborne for their entire non-breeding period [1, 2], including migration into sub-Saharan Africa [3-5]. It is mainly juvenile common swifts that occasionally roost in trees or buildings before autumn migration when weather is bad [1, 6]. In contrast, the North American chimney swift (Chaetura pelagica) and Vaux's swift (C...
November 21, 2016: Current Biology: CB
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