Search results for "evar"

Latvijas Tautas frontes Cēsu rajona nodaļas politiskā darbība (1988-1990)

2019

Maģistra darbā “Latvijas Tautas frontes Cēsu rajona nodaļas politiskā darbība (1988-1990)” aplūkota Latvijas Tautas frontes Cēsu rajona nodaļas darbība, skatot to kontekstā gan ar vietējām aktualitātēm, gan Latvijas PSR mērogā. Latvijas Tautas frontes Cēsu rajona nodaļas darbība zinātniskā līmenī līdz šim nav tikusi pētīta, tādējādi paverot plašas izpētes iespējas. Darba autore izvēlējusies LTF Cēsu rajona nodaļas darbību pētīt politiskā aspektā, sniedzot padziļinātu ieskatu nodaļas darbā gan vietējā mērogā, gan republikas nozīmes darbībā. Maģistra darbā apskatīta LTF Cēsu rajona nodaļas attīstība no tās pirmsākumiem, tās aktīvākajā darbības periodā, pētniecību noslēdzot ar Neatkarības dekl…

La figura del Che

2007

Leveraging and Deleveraging: Pluses and Minuses

2013

Abstract As in physics, leverage is an amplifier. In business, the leverage is amplifying the losses or the gains. In good times, leverage is good, it is busting the gains, it supports economic growth. Companies and governments are using leverage at large scale. In bad times, it is busting the losses. Companies and governments will have to deleverage. This paper aims to present in brief the concepts of leveraging and deleveraging, to explain why companies, banks and governments are using the leverage, and what are the consequences of using it? The high degree of leverage is one cause of a financial crisis and therefore deleveraging is usually following a financial crisis. We will address th…

Mid-term results of zone 0 thoracic endovascular aneurysm repair after ascending aorta wrapping and supra-aortic debranching in high-risk patients

2017

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. All patients were considered at high risk for conventional surgery. Measured outcomes included perioperative deaths and morbidity, maximal aortic trans…

Transgraft sac Embolization Combined with Graft Reinforcement for Refractory Mixed-Type Endoleak.

2018

International audience; An 80-year-old female underwent EVAR 4 years ago. She presented type II endoleak with sac expansion from 68 to 80 mm during 3-year follow-up after EVAR. Although she underwent translumbar percutaneous sac embolization, the AAA sac continued to enlarge, suggesting mixed-type endoleak including type I, II, and III. Transgraft direct sac angiography revealed endoleak cavity without demonstrable feeding vessel. Transgraft sac embolization using n-butyl cyanoacrylate and graft reinforcement was performed concurrently, without complications. The graft reinforcement consisted of graft extension for eliminating occult type I endoleak, and relining for eliminating occult type…

Hybrid Endograft Solution for Complex Iliac Anatomy

2010

The purpose of this study was to evaluate single-center results with selective use of Gore Excluder limbs (W.L. Gore & Associates, Flagstaff, AZ) in a Cook Zenith body (Cook Inc, Bloomington, IN) for elective endovascular abdominal aortic aneurysm (AAA) repair. A prospectively held database for patients with AAA, who were treated endovascularly between March 1999 and July 2008, was queried for patients treated with a Cook Zenith body and one or two Gore Excluder limbs. Indication, technical success, late limb occlusion, and disconnection were evaluated. From 276 patients who were treated with a Zenith body, 29 underwent repair with hybrid graft components with, in total, 41 Gore Exclud…

Fenestrated Stent Grafting for Short-necked and Juxtarenal Abdominal Aortic Aneurysm

2010

Objectives: To present an 8-year clinical experience in the endovascular treatment of short-necked and juxtarenal abdominal aortic aneurysm (AAA) with fenestrated stent grafts. Methods: At our tertiary referral centre, all patients treated with fenestrated and branched stent grafts have been enrolled in an investigational device protocol database. Patients with short-necked or juxtarenal AAA managed with fenestrated endovascular aneurysm repair (F-EVAR) between November 2001 and April 2009 were retrospectively reviewed. Patients treated at other hospitals under the supervision of the main author were excluded from the study. Patients treated for suprarenal or thoraco-abdominal aneurysms wer…

Results of chimney endovascular aneurysm repair as used in the PERICLES Registry to treat patients with suprarenal aortic pathologies

2020

Background: The prevailing evidence calls for using chimney/snorkel endovascular repair (ch-EVAR) with one or two chimney grafts. No studies up to now focus on its applicability and results for the treatment of suprarenal aortic pathologies (SRAP). Hence, we evaluated the clinical and radiologic results of ch-EVAR treatment for SRAP placing three or more chimney grafts within the PERICLES Registry. Methods: Data from 517 patients suffering complex aortic pathologies treated by ch-EVAR between 2008 and 2014 at 13 European and U.S. centers were retrospectively reviewed and analyzed. Results: Sixty-seven ch-EVAR-treated patients (12.9% of the entire PERICLES cohort) presented SRAP (83.5% elect…

Early distal remodeling after elephant trunk repair of thoraco-abdominal aortic aneurysms

2016

Hemodynamic alterations occur when the elephant trunk (ET) technique is adopted to treat extensive aortic aneurysms. In planning the 2nd stage operation to complete ET repair, surgeons must weigh an adequate recovery time after initial surgery against the risk of postoperative ET-related complications. The purpose of this study was to understand the mechanistic link between the flow alteration caused by the ET graft and the development of premature aortic rupture before the 2nd stage operation. Specifically, fluid-structure interaction (FSI) analysis was performed using the CT imaging data of aorta at different stages of ET repair, and then computational variables were compared to those obs…

Outpatient endovascular aortic aneurysm repair: Experience in 100 consecutive patients

2013

OBJECTIVES:: To present the safety, feasibility, costs, and patient satisfaction of outpatient endovascular aneurysm repair (EVAR). BACKGROUND:: Our experience in more than 1000 patients indicated that in technically uncomplicated EVAR procedures, the only need for hospitalization was for access vessel complications (bleeding or occlusion) requiring secondary procedures. These complications could always be identified within the first 3 hours after EVAR. METHODS:: Two-center retrospective analysis of prospectively gathered data on 100 consecutive elective outpatient EVAR cases (Outpt EVAR). Inclusion criteria for Outpt EVAR were as follows: asymptomatic clinical state, informed consent, trav…