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Renal artery aneurysm

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https://www.readbyqxmd.com/read/28634052/management-of-wide-based-renal-artery-aneurysms-using-noncovered-stent-assisted-coil-embolization
#1
Xiaolong Wei, Yudong Sun, Yani Wu, Zhenjiang Li, Jiang Zhu, Zhiqing Zhao, Rui Feng, Zaiping Jing
OBJECTIVE: This study describes the safety and midterm efficacy of a noncovered stent-assisted embolization (SAE) technique in treating patients with wide-base renal artery aneurysms (RAAs). METHODS: Between February 2011 and June 2014, 34 RAAs in 28 consecutive patients were treated with noncovered SAE in our center. RESULTS: Technical success was 100%. During an average follow-up of 19 months, the systolic and diastolic blood pressures were significantly decreased...
June 17, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28632534/administration-of-tetrahydrobiopterin-bh4-protects-the-renal-microcirculation-from-ischemia-and-reperfusion-injury
#2
Lokmane Rahmania, Diego Orbegozo, Fuhong Su, Fabio Silvio Taccone, Jean-Louis Vincent, Daniel De Backer
BACKGROUND: Abdominal aortic aneurysm surgery with suprarenal cross-clamping is often associated with renal injury. Although the mechanism underlying such injury is unclear, tissue ischemia and reperfusion, which induces endothelial dysfunction and decreases the availability of tetrahydrobiopterin (BH4), may play a role. We evaluated whether BH4 administration prevents renal ischemia/reperfusion injury in an animal model of aortic cross-clamping. METHODS: Nineteen anesthetized, mechanically ventilated, and invasively monitored adult sheep were randomized into 3 groups: sham animals (n = 5) that underwent surgical preparation but no aortic clamping; an ischemia/reperfusion group (n = 7), where the aorta was clamped above the renal arteries for 1 hour, and a BH4 group (n = 7), in which animals received 20 mg/kg of BH4 followed by aortic cross-clamp for 1 hour...
June 17, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28619356/operative-and-one-year-outcomes-of-the-custom-made-fenestrated-anaconda%C3%A2-aortic-stent-graft-a-uk-multicentre-study
#3
Frances E Colgan, Peter M Bungay, Nicholas Burfitt, Andrew Hatrick, Michael J Clarke, Alun H Davies, Michael Jenkins, David Gerrard, John W Quarmby, Robin Williams
OBJECTIVES: Early and one year outcomes are presented for fenestrated endovascular aneurysm repair (FEVAR) of complex aortic aneurysmal disease with the custom-made Anaconda fenestrated stent graft in 101 patients. METHODS: Retrospective site-reported data from the first 101 elective cases (2010 to 2014) from four UK centres was studied to evaluate patient demographics, aneurysm morphology, clinical success and one year outcomes in patients undergoing fenestrated aneurysm repair with the custom-made Anaconda device...
June 12, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28607778/saphenovenous-graft-aneurysm-a-rare-complication-of-cabg
#4
James Thomas Connell
Saphenovenous graft aneurysm is a rare complication of coronary artery bypass grafts that is likely underdiagnosed. It is typically asymptomatic, slow growing, and often diagnosed incidentally on angiography or following catastrophic rupture. There is no consensus on best management but PCI and surgery appear to have more favourable mortality outcomes relative to conservative management. We present the case of a 48-year-old male with a cardiovascular risk profile hallmarked by diabetes mellitus, end stage renal failure, recalcitrant hyperlipidaemia, and IHD previously treated with CABG...
2017: Case Reports in Cardiology
https://www.readbyqxmd.com/read/28596039/assessment-of-aortic-wall-thrombus-predicts-outcomes-of-endovascular-repair-of-complex-aortic-aneurysms-using-fenestrated-and-branched-endografts
#5
Mauricio Ribeiro, Gustavo S Oderich, Thanila Macedo, Terri J Vrtiska, Jan Hofer, Julia Chini, Bernardo Mendes, Stephen Cha
OBJECTIVE: The goal of this study was to investigate the correlation between atherothrombotic aortic wall thrombus (AWT) and clinical outcomes in patients treated by fenestrated-branched endovascular aortic repair (F-BEVAR) and present a new classification system for assessment of AWT burden. METHODS: The clinical data of 301 patients treated for pararenal and thoracoabdominal aortic aneurysms (TAAAs) by F-BEVAR was reviewed. The study excluded 89 patients with extent I to III TAAA because of extensive laminated thrombus within the aneurysm sac...
June 5, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28594811/-successful-two-stage-surgical-treatment-of-a-thoracoabdominal-aortic-aneurysm-a-case-report
#6
V V Shlomin, D A Zverev, E D Zvereva, P D Puzdriak, P B Bondarenko, M L Gordeev
Presented herein is a clinical case report regarding hybrid or two-stage surgical treatment of a Crawford type II thoracoabdominal aortic aneurysm in an 87-year-old woman. For the first stage operation we performed open resection of the abdominal aortic aneurysm with aortofemoral bifurcation prosthetic repair and debranching of visceral and renal arteries. Several months thereafter, the second stage operation was performed, consisting in transcatheter exclusion of the thoracoabdominal aortic aneurysm with the help of two stent grafts...
2017: Angiologii︠a︡ i Sosudistai︠a︡ Khirurgii︠a︡, Angiology and Vascular Surgery
https://www.readbyqxmd.com/read/28594804/-use-of-an-ex-vivo-technique-in-a-patient-with-renal-arteriovenous-malformation-in-complication-endovascular-treatment
#7
A E Zotikov, Z A Adyrkhaev, A A Teplov, A A Gritskevich, A S Ivandaev, V N Tsygankov, I E Timina, Iu A Stepanova, A N Askerova, V S Shvydko, G G Karmazanovskiĭ, A V Pokrovskiĭ
Renal arteriovenous malformation is a rarely encountered disease characterized by the presence of a direct arteriovenous shunt between the renal artery and vein. This nosology was first described by Varela in 1928, and by 1997 the number of such cases amounted to slightly more than 200. Endovascular closure of a fistula seems to be an attractive method of treatment in view of low traumaticity and a short period of rehabilitation. However, as shown by our case report, this type of intervention in large-diameter fistulas may be associated with the development of life-threatening complications...
2017: Angiologii︠a︡ i Sosudistai︠a︡ Khirurgii︠a︡, Angiology and Vascular Surgery
https://www.readbyqxmd.com/read/28592079/-endovascular-aortic-repair-of-abdominal-aortic-aneurysm-of-short-neck-with-endurant-stent-graft
#8
Y G Wang, Z Y Shi, W G Fu, D Q Guo, X Xu, B Chen, J H Jiang, J Yang, T Zhu, Z H Dong, Y Shi, L X Wang, X Tang, J N Yue
Objective: To evaluate the safety and effectiveness of the Endurant stent graft for abdominal aortic aneurysm cases with proximal neck length <10 mm. Methods: This study was a retrospective analysis. From January 2010 to May 2015, 22 consecutive abdominal aortic aneurysm patients with proximal neck length <10 mm were treated with endovascular aortic repair by Endurant stent graft in Department of Vascular Surgery, Zhongshan Hospital, Fudan University. There were 19 (86.3%) male cases, aging from 57 to 84 years...
June 1, 2017: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
https://www.readbyqxmd.com/read/28587578/extra-vascular-findings-in-patients-undergoing-magnetic-resonance-angiography-of-the-abdomen-pelvis-and-lower-extremities-a-retrospective-study-of-352-patients
#9
Jan M Sohns, Jan Menke, Leonard Bergau, Bernhard G Weiss, Sebastian Schmuck, Desiree Weiberg, Wieland Staab, Thorsten Derlin, Marc Dorenkamp, Christian Sohns
Background The aim of this study was to assess the prevalence and clinical significance of extra-vascular findings in patients undergoing magnetic resonance angiography of the abdomen, pelvis and lower extremities. Materials and methods Three hundred fifty-two patients underwent abdominal, pelvic and lower extremity 1.5 T magnetic resonance angiography. Clinically relevant vascular and extra-vascular findings were identified. Relevant vascular findings were classified as stenosis, occlusion, aneurysm, sclerosis, dissection or vasculitis...
January 1, 2017: Vascular
https://www.readbyqxmd.com/read/28583735/electromagnetic-tracking-of-flexible-robotic-catheters-enables-assisted-navigation-and-brings-automation-to-endovascular-navigation-in-an-in-vitro-study
#10
Adeline Schwein, Benjamin Kramer, Ponraj Chinnadurai, Neha Virmani, Sean Walker, Marcia O'Malley, Alan B Lumsden, Jean Bismuth
OBJECTIVE: Combining three-dimensional (3D) catheter control with electromagnetic (EM) tracking-based navigation significantly reduced fluoroscopy time and improved robotic catheter movement quality in a previous in vitro pilot study. The aim of this study was to expound on previous results and to expand the value of EM tracking with a novel feature, assistednavigation, allowing automatic catheter orientation and semiautomatic vessel cannulation. METHODS: Eighteen users navigated a robotic catheter in an aortic aneurysm phantom using an EM guidewire and a modified 9F robotic catheter with EM sensors at the tip of both leader and sheath...
June 2, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28583724/endovascular-treatment-of-visceral-artery-aneurysms-and-pseudoaneurysms-with-stent-graft-analysis-of-immediate-and-long-term-results
#11
Matteo Cappucci, Federico Zarco, Gianluigi Orgera, Antonio López-Rueda, Javier Moreno, Florindo Laurino, Daniel Barnes, Marcello Andrea Tipaldi, Fernando Gomez, Juan Macho Fernandez, Michele Rossi
INTRODUCTION: The aim of this study is to analyze the safety and efficacy of stent-graft endovascular treatment for visceral artery aneurysms and pseudoaneurysms. METHODS: Multicentric retrospective series of patients with visceral aneurysms and pseudoaneurysms treated by means of stent graft. The following variables were analyzed: Age, sex, type of lesion (aneurysms/pseudoaneurysms), localization, rate of success, intraprocedural and long term complication rate (SIR classification)...
May 2017: Cirugía Española
https://www.readbyqxmd.com/read/28580349/ultrasound-fusion-imaging-with-real-time-navigation-for-the-surveillance-after-endovascular-aortic-aneurysm-repair
#12
Jin Hyun Joh, Sang-Ah Han, Sang-Hyun Kim, Ho-Chul Park
Ultrasound can be an effective alternative to computed tomography for surveillance following endovascular aneurysm repair (EVAR). Recently, ultrasound fusion imaging with the real-time navigation system was introduced. Here we described 3 patients who underwent post-EVAR surveillance using this novel technique. Complete coregistration was achieved in all patients. The origin of left renal artery was selected for the target of coregistration. Ultrasound fusion imaging was useful to differentiate the confusing lesion and to evaluate the complete resolution of endoleak and newly developed delayed endoleak...
June 2017: Annals of Surgical Treatment and Research
https://www.readbyqxmd.com/read/28578623/definition-of-type-ii-endoleak-risk-based-on-preoperative-anatomical-characteristics
#13
Michele Piazza, Francesco Squizzato, Tommaso Miccoli, Sandro Lepidi, Mirko Menegolo, Franco Grego, Michele Antonello
PURPOSE: To define the risk for type II endoleak (EII) after endovascular aneurysm repair (EVAR) based on preoperative anatomical characteristics. METHODS: Between January 2008 and December 2015, 189 patients (mean age 78.4±7.6 years; 165 men) underwent standard EVAR. Mean aneurysm diameter was 5.7±0.7 cm and mean volume 125.2±45.8 cm(3). Patients were assigned to the "at-risk" group (n=123, 65%) when at least one of the following criteria was present: patency of a >3-mm inferior mesenteric artery (IMA), patency of at least 3 pairs of lumbar arteries, or patency of 2 pairs of lumbar arteries and a sacral artery or accessory renal artery or any diameter patent IMA; otherwise, patients were entered in the "low-risk" group (n=66, 35%)...
June 1, 2017: Journal of Endovascular Therapy
https://www.readbyqxmd.com/read/28569144/the-incidence-risk-factors-and-in-hospital-mortality-of-acute-kidney-injury-in-patients-after-abdominal-aortic-aneurysm-repair-surgery
#14
Ying Tang, Junzhe Chen, Kai Huang, Dan Luo, Peifen Liang, Min Feng, Wenxin Chai, Erik Fung, Hui Yao Lan, Anping Xu
BACKGROUND: Acute kidney injury (AKI) is a severe complication associated with abdominal aortic aneurysm (AAA) repair. In this study, we evaluated the incidence, risk factors and in-hospital mortality of AKI in patients after the AAA repair surgery. METHODS: A total of 314 Chinese AAA patients who underwent endovascular aneurysm repair (EVAR) or open aneurysm repair (OPEN) were enrolled in this study. AKI was diagnosed according to the 2012 KDIGO criteria. Logistic regression modeling was used to explore risk factors of AKI, while risk factors associated with in-hospital mortality in AKI patients were investigated using Cox proportional hazards model and Kaplan-Meier analysis, respectively...
May 31, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/28559176/results-from-multiple-prospective-single-center-clinical-trials-of-the-off-the-shelf-p-branch-fenestrated-stent-graft
#15
Mark A Farber, Matthew J Eagleton, Tara M Mastracci, James F McKinsey, Raghuveer Vallabhaneni, Björn Sonesson, Nuno Dias, Timothy Resch
OBJECTIVE: The purpose of this study was to report prospective data of an off-the-shelf fenestrated endograft (Zenith p-Branch; Cook Medical, Bloomington, Ind) from four centers for the treatment of patients with pararenal abdominal aortic aneurysms. METHODS: Data were combined from four single-center investigational studies conducted in the United States and Europe. The p-Branch endograft consists of a proximal off-the-shelf component incorporating a scallop for the celiac artery, a superior mesenteric artery fenestration, and two conical pivot fenestrations to preserve flow to the renal vessels...
May 27, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28559175/rescue-of-failed-endovascular-aortic-aneurysm-repair-using-the-fenestrated-anaconda-device
#16
Jürgen Falkensammer, Fadi Taher, Miriam Uhlmann, Kornelia Hirsch, Johannes Strassegger, Afshin Assadian
OBJECTIVE: Endovascular aortic aneurysm repair (EVAR) with a fenestrated device (FEVAR) allows an extension of the proximal sealing zone above the renal arteries to an adequate, healthier segment of the aorta. This feature makes FEVAR an option to treat patients with a diseased aortic neck or type Ia endoleak after EVAR. The aim of this investigation was to present a single-center experience with FEVAR for patients with an abdominal aortic endograft in situ compared with primary FEVAR...
May 27, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28554696/-hypertension-during-takayasu-s-disease-an-algerian-single-center-experience-of-279-patients
#17
A Mammeri, R Guermaz, A Hatri, F Kessal, S Taharboucht, F Hamrour, M Ammi, S Zekri, M Brouri
INTRODUCTION: Takayasu arteritis (TA) is an uncommon large vessel arteritis. Lesions produced by the inflammatory process can be stenotic, occlusive, or aneurysmal. Vascular changes lead to the main complications, including hypertension, most often due to renal artery stenosis or, more rarely, stenosis of the suprarenal aorta. AIM OF STUDY: Our study will assess the prevalence of hypertension during TA and describe its clinical profile. MATERIAL AND METHODS: Among 279 patients with TA resulting from single center study over a period of 35 years, we collected 128 hypertensive patients...
May 26, 2017: Annales de Cardiologie et D'angéiologie
https://www.readbyqxmd.com/read/28549955/a-peculiar-case-of-type-1-endoleak-after-nellix-endovascular-aneurysm-sac-sealing-clinical-presentation-and-management
#18
O Martinelli, L Irace, R Gattuso, C Belli, M Fresilli, B Gossetti
We report one case of type 1 endoleak (EL) with an outflow via a lumbar artery following Nellix endovascular aneurysm sealing (EVAS) in order to discuss the specific peculiarities and management of this complication. A 64-year-old man ( ASA 3) underwent Nellix EVAS for an asymptomatic infra-renal aortic aneurysm. The 6-month Duplex scanning ultrasound and magnetic resonance imaging showed a type IA endoleak with an outflow via a lumbar artery (LA) combined with a stable aneurysmal sac size. The subsequent 9-month imaging controls showed no changes of the endoleak cavity but there was a slight enlargement in proximal neck size associated with the distal migration of both Nellix grafts...
May 23, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28548474/aortic-aneurysm-endovascular-treatment-with-the-parallel-graft-technique-from-the-aortic-arch-to-the-iliac-axis
#19
Gian F Fadda, Mario Marino, Holta Kasemi, Costantino L DI Angelo, Carlo P Dionisi, Valeria Cammalleri, Carlo Setacci
BACKGROUND: The chimney technique has been developed for the treatment of complex aortic aneurysms. We analyzed the midterm to long-term outcomes of this approach from a single- centre experience. METHODS: From October 2008 to July 2016, 58 patients underwent endovascular aortic aneurysm repair using the chimney technique. Indications for treatment were thoracic aortic aneurysm (TAA) (n = 11), thoracoabdominal aortic aneurysm (TAAA) (n = 2), pararenal aortic aneurysm (PAAA) (n= 15), aortoiliac/isolated hypogastric artery aneurysm (n = 25), type I endoleak after previous TEVAR/EVAR (n=4), proximal pseudoaneurysm after AAA open repair (n = 1)...
May 26, 2017: Journal of Cardiovascular Surgery
https://www.readbyqxmd.com/read/28548006/management-of-endovascular-aortic-aneurysm-complications-via-retrograde-catheterization-through-the-distal-stent-graft-landing-zone
#20
Xicheng Zhang, Yuan Sun, Zhaolei Chen, Yuanhu Jing, Miao Xu
OBJECTIVE: A retrograde technique through the gap between the distal stent landing zone and the iliac artery wall has been applied to treat type II endoleak after endovascular aortic aneurysm repair (EVAR). In this study, we tried to investigate its efficacy in the management of type III endoleak and intraoperative accidental events. METHODS: We reported 2 complications of EVAR that were difficult to treat with conventional methods. One patient had a sustained type III endoleak after EVAR, and the right renal artery was accidentally sealed by a graft stent in the other patient during the operation...
January 1, 2017: Vascular and Endovascular Surgery
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