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Renal artery reconstruction

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https://www.readbyqxmd.com/read/29730345/hemiarch-reconstruction-vs-clamped-aortic-anastomosis-for-concomitant-ascending-aortic-aneurysm
#1
Ibrahim Sultan, Valentino Bianco, Ibrahim Yajzi, Arman Kilic, Keith Dufendach, Arturo Cardounel, Andrew D Althouse, Ahmad Masri, Forozan Navid, Thomas G Gleason
BACKGROUND: Deep hypothermic circulatory arrest (DHCA) is often avoided in patients with concomitant ascending aortic pathology when treating other cardiac disease to avoid increased risk of morbidity and mortality. We hypothesized that the use of DHCA with retrograde cerebral perfusion (RCP) does not add incremental risk to ascending aortic replacement alone in the setting of concomitant cardiac surgery. METHODS: 408 ascending aortic ± hemiarch replacements and aortic (root)/mitral/tricuspid valve(s), CABG, or MAZE procedures were performed for concomitant cardiac disease...
May 3, 2018: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/29722889/double-arterial-cannulation-a-strategy-for-whole-body-perfusion-during-aortic-arch-reconstruction
#2
Michaela Kreuzer, Eva Sames-Dolzer, Laura Schausberger, Andreas Tulzer, Thomas Ratschiller, Bettina Haizinger, Gerald Tulzer, Rudolf Mair
OBJECTIVES: Double-arterial cannulation enables cerebral perfusion and lower body perfusion during aortic arch reconstruction. The aim of this study was to analyse and report our experience of using this cannulation and perfusion technique on paediatric patients. METHODS: A retrospective single-centre study was carried out on 407 consecutive paediatric patients who underwent an aortic arch reconstruction under double-arterial cannulation between 2003 and 2015. The median age of the patients at surgery was 8 (range 2-5570) days, and body weight was 3...
May 2, 2018: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29721848/pyogenic-granuloma-originating-in-the-pulmonary-artery
#3
Noriaki Kishimoto, Takeshi Ikuta, Hirofumi Fujii, Akihiro Sumiya, Eiji Kimura, Yoshihiro Shimizu
We herein report an unreported case of pyogenic granuloma that originated in the pulmonary artery. A 38-year-old man was urgently hospitalized with dyspnea and back pain. He had been on hemodialysis for 2 years due to chronic renal failure. We performed contrast-enhanced computed tomography and detected a mass occluding the left main pulmonary artery. The maximum standardized uptake value (SUVmax ) of 18 F-fluorodeoxy glucose (FDG) in the mass was 4.1. We made a tentative diagnosis of pulmonary artery tumor, and planned an operation...
May 2, 2018: General Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29701414/hilar-renal-artery-aneurysm-ex-vivo-reconstruction-and-autotransplantation
#4
Pedro Pinto Sousa, Carlos Veiga, Arlindo Matos, Pedro Sá Pinto, Rui Almeida
INTRODUCTION: Renal artery aneurysm (RAA) is a rare clinical entity with an estimated prevalence of 0.15% to 0.1%in the general population. The majority of patients present asymptomatically and the diagnosis is made incidentally during a hypertension study test, and more rarely, fortuitously after backache. Indications to treat have been subject of intense debate, nevertheless there seems to be some consensus that RAAs greater than 2 cm in diameter, expanding RAA, with thrombus or in pregnant women should be treated...
July 2017: Revista Portuguesa de Cirurgia Cardio-torácica e Vascular
https://www.readbyqxmd.com/read/29701380/renal-autotransplantation-the-solution-for-different-pathologies
#5
Pedro Pinto Sousa, Rui Machado, Pedro Sá Pinto, Rui Almeida
INTRODUCTION: Renal autotransplantation (RA) is a safe and effective procedure to reconstruct the urinary tract which first successful surgery was performed by Hardy in 1963. The main indications reported for performing RA generally includes renovascular disease, ureteral pathologies and neoplastic disease. RA may be also useful as the last recourse in preventing kidney loss in highly selected patients, especially when conventional methods have failed. METHODS: The authors pretend to describe four total different situations where the RA was the key solution for the pathology initially presented...
July 2017: Revista Portuguesa de Cirurgia Cardio-torácica e Vascular
https://www.readbyqxmd.com/read/29699882/radical-robot-assisted-laparoscopic-nephrectomy-with-thrombectomy-in-the-vena-cava
#6
J Estébanez Zarranz, J Belloso Loidi, M A Gutierrez García, V Rubio Calaveras, G Morales Higelmo, P Melendo Tercilla, L Busto Leis, J P Sanz Jaka
BACKGROUND: Renal cell carcinoma has a natural tendency to extend through the renal vein. When the thrombus reaches the vena cava, thrombectomy and the necessary reconstruction of the vena cava are typically performed by open pathway. Robot-assisted technology provides advantages for performing this complex technique, using a minimally invasive access. MATERIAL AND METHODS: We present the technique we employed in the first case performed in our department. After performing renal artery embolisation, we conducted the surgery with the Vinci S robotic system...
April 23, 2018: Actas Urologicas Españolas
https://www.readbyqxmd.com/read/29682119/double-inferior-vena-cava-with-azygos-continuation-and-retroaortic-left-renal-vein-associated-with-juxtarenal-abdominal-aortic-aneurysm-surgery
#7
Koji Onoda, Yu Shomura, Takuya Komada
The combination of a double inferior vena cava (IVC), a retroaortic left renal vein, and azygos continuation of the IVC is extremely rare. Here we report the case of a 74-year-old man with this complex venous anomaly associated with a juxtarenal abdominal aortic aneurysm (AAA), who underwent a successful graft implantation with left renal artery reconstruction without injuring the retroaortic venous system. The venous anomaly was diagnosed using preoperative contrast-enhanced computed tomography (CT). Thus, contrast-enhanced CT can provide sufficient information on AAA and anomalous venous anatomy to avoid fatal complications during AAA surgery...
March 25, 2018: Annals of Vascular Diseases
https://www.readbyqxmd.com/read/29661193/simulation-of-phase-contrast-angiography-for-renal-arterial-models
#8
Artur Klepaczko, Piotr Szczypiński, Michał Strzelecki, Ludomir Stefańczyk
BACKGROUND: With the development of versatile magnetic resonance acquisition techniques there arises a need for more advanced imaging simulation tools to enable adequate image appearance prediction, measurement sequence design and testing thereof. Recently, there is a growing interest in phase contrast angiography (PCA) sequence due to the capabilities of blood flow quantification that it offers. Moreover, as it is a non-contrast enhanced protocol, it has become an attractive option in areas, where usage of invasive contrast agents is not indifferent for the imaged tissue...
April 16, 2018: Biomedical Engineering Online
https://www.readbyqxmd.com/read/29622358/arterial-reconstructions-for-pediatric-splanchnic-artery-occlusive-disease
#9
Dawn M Coleman, Jonathan L Eliason, James C Stanley
OBJECTIVE: Pediatric splanchnic arterial occlusive disease is uncommon and a rare cause of clinically relevant intestinal ischemia. This study was undertaken to better define the clinical manifestations and appropriate treatment of celiac artery (CA) and superior mesenteric artery (SMA) occlusive disease in children. METHODS: Clinical courses of 30 consecutive children undergoing operations for splanchnic arterial occlusive disease at the University of Michigan from 1992 to 2017 were retrospectively analyzed...
April 2, 2018: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/29593819/morphological-and-clinical-aspects-of-the-occurrence-of-accessory-multiple-renal-arteries
#10
Ewelina Gulas, Grzegorz Wysiadecki, Jacek Szymański, Agata Majos, Ludomir Stefańczyk, Mirosław Topol, Michał Polguj
Renal vascularization variants vastly differ between individuals due to the very complex embryogenesis of the kidneys. Moreover, each variant may have implications for clinical and surgical interventions. The number of operating procedures continues to grow, and includes renal transplants, aneurysmorrhaphy and other vascular reconstructions. In any surgical technique, unawareness of the presence of multiple renal arteries may result in a fatal outcome, especially if laparoscopic methods are used. The aim of this review is to comprehensively identify the variation within multiple renal arteries and to highlight the connections between the presence of accessory renal arteries and the coexistence of other variants of vascularization...
March 2018: Archives of Medical Science: AMS
https://www.readbyqxmd.com/read/29515705/natural-history-and-chronological-growth-rate-of-renal-artery-aneurysms
#11
Michihisa Umetsu, Hitoshi Goto, Masato Ohara, Munetaka Hashimoto, Takuya Shimizu, Daijirou Akamatsu, Ken Tsuchida, Yuta Tajima, Shunya Suzuki, Keisuke Yamamoto, Shigehito Miyagi, Michiaki Unno, Takashi Kamei
Objective : Renal artery aneurysm (RAA) is an uncommon disease, the natural course of which is still not well known. The objective of this study is to define factors that affect the growth rate of RAAs. Materials and Methods : We retrospectively reviewed 32 aneurysms in 26 patients at our institute between January 2010 and March 2016. Basal demographics, comorbidities, reason for diagnosis, and details of the aneurysms and interventions were recorded. The chronological changes in the diameter of the RAA using multiplanar reconstructions of computed tomography images were measured and analyzed...
December 25, 2017: Annals of Vascular Diseases
https://www.readbyqxmd.com/read/29501903/aneurysmal-degeneration-of-an-aortorenal-bypass-for-takayasu-renal-artery-stenosis-a-novel-endovascular-intervention
#12
Huanrui Hu, Xiyang Chen, Zhoupeng Wu, Jichun Zhao, Bin Huang, Yukui Ma, Ding Yuan, Yi Yang, Fei Xiong
We report an aneurysm degeneration of a vein graft in a previous aortorenal bypass performed 5 years earlier for severe right renal artery stenosis due to Takayasu arteritis. The patient was a 31-year-old woman who suffered from refractory hypertension. The autogenous bypass adopting great saphenous vein was performed from her infrarenal abdominal aorta to her right renal artery. Five years after the operation, the patient complained vague discomfort in her abdomen. Three-dimensional computed tomography angiography reconstruction demonstrated the existence of an aneurysm with a maximum diameter of 1...
May 2018: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/29496466/risk-factors-and-outcomes-of-pyogenic-liver-abscess-in-adult-liver-recipients-a-matched-case-control-study
#13
Matias E Czerwonko, Pablo Huespe, Cristina M Elizondo, Juan Pekolj, Adrian Gadano, Laura Barcán, Sung-Ho Hyon, Eduardo de Santibañes, Martín de Santibañes
BACKGROUND: Adult liver recipients (ALR) differ from the general population with pyogenic liver abscess (PLA) as they exhibit: reconstructed biliary anatomy, recurrent hospitalizations, poor clinical condition and are subjected to immunosuppression. The aim of this study was to identify risk factors associated with PLA in ALR and to analyze the management experience of these patients. METHODS: Between 1996 and 2016, 879 adult patients underwent liver transplantation (LT), 26 of whom developed PLA...
February 26, 2018: HPB: the Official Journal of the International Hepato Pancreato Biliary Association
https://www.readbyqxmd.com/read/29430886/endovascular-treatment-of-para-anastomotic-aneurysms-after-open-abdominal-aortic-surgery
#14
Konstantinos Spanos, Tilo Kölbel, George Kouvelos, Nikolaos Tsilimparis, Sebastian E Debus, Athanasios D Giannoukas
INTRODUCTION: The repair of long-term complications of open abdominal aortic repair such as para-anastomotic aneurysm (PAA) and pseudoaneurysm (PSA) is very challenging. The aim of this study was to assess the outcomes of endovascular repair of PAA/PSA after previous open aortic surgery for aneurismal or occlusive disease. EVIDENCE ACQUISITION: A systematic review was undertaken; a search was performed (PRISMA) in MEDLINE, CENTRAL, Cochrane databases and key references of all studies of endovascular treatment of PAA/PSA after open aortic surgery...
February 8, 2018: Journal of Cardiovascular Surgery
https://www.readbyqxmd.com/read/29390277/a-rare-case-report-of-bilateral-common-and-internal-iliac-arterial-fibromuscular-dysplasia-coexisted-dissection-aneurysm-and-stenosis
#15
Luyun Fan, Wenjun Ma, Huimin Zhang, Jun Cai
RATIONALE: Iliac arterial fibromuscular dysplasia (FMD) was rarely reported and its demographic, clinical, and imaging features have not been precisely described resulting in uncertain therapeutic methods. PATIENT CONCERNS: A 31-year-old man was referred because of 3-month-ago onset hypertension, low serum potassium, and a small-sized right kidney with normal renal artery under ultrasound examination. This patient was suspected of primary aldosteronism, whereas spirolactone was poorly effective...
December 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29386532/ct-pulmonary-angiography-in-patients-with-acute-or-chronic-renal-insufficiency-evaluation-of-a-low-dose-contrast-material-protocol
#16
Mathias Meyer, Holger Haubenreisser, Christoph Schabel, Christianne Leidecker, Bernhard Schmidt, Stefan O Schoenberg, Thomas Henzler
Adverse effects of intravenous contrast media (CM) in patients with renal risk factors and acute kidney injury are still controversially discussed. The aim of this study was to investigate whether dual-energy (DE) pulmonary CT angiography (CTPA) in combination with a noise optimized virtual monoenergetic imaging algorithm allows for a reduction of CM. This IRB-approved study comprised 150 patients with suspected pulmonary embolism (78 male; mean age 65 ± 17years). 50 patients with acute/chronic renal failure were examined on a 3rd generation dual-source CT with an optimized DE CTPA protocol and a low CM injection protocol (5...
January 31, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29349386/successful-use-of-retrograde-branched-extension-limb-assembling-technique-in-endovascular-repair-of-pararenal-abdominal-aortic-aneurysm
#17
Jiang Xiong, Zhongzhou Hu, Hongpeng Zhang, Huanming Xu, Duanduan Chen, Wei Guo
Surgeon-modified retrograde branched extension limb assembling technique and bridged endografts were successfully used to exclude an asymptomatic pararenal abdominal aortic aneurysm and to reconstruct the superior mesenteric artery and bilateral renal arteries in a case with high-grade celiac artery stenosis, nondilated aorta above the superior mesenteric artery, and large lumen below the renal arteries. In patient-specific models for hemodynamics analysis, enhanced flow diversion to visceral arteries up to 6-month follow-up confirmed treatment feasibility; however, endograft configurations could be improved to avoid sharp corners at bifurcations, thereby ensuring smooth flow transport and possibly reducing risk for endograft narrowing or the development of thrombosis...
June 2017: Journal of Vascular Surgery Cases and Innovative Techniques
https://www.readbyqxmd.com/read/29342430/tissue-expander-stimulated-lengthening-of-arteries-for-the-treatment-of-midaortic-syndrome-in-children
#18
Heung Bae Kim, Gabriel J Ramos-Gonzalez, Khashayar Vakili, Deborah R Stein, Michael A Ferguson, Diego Porras, James E Lock, Gulraiz Chaudry, Ahmad Alomari, Steven J Fishman
BACKGROUND: Midaortic syndrome (MAS) is a rare condition characterized by stenosis of the abdominal aorta. Patients with disease refractory to medical management will usually require either endovascular therapy or surgery with use of prosthetic graft material for bypass or patch angioplasty. We report our early experience with a novel approach using a tissue expander (TE) to lengthen the normal native arteries in children with MAS, allowing primary aortic repair without the need for prosthetic graft material...
January 13, 2018: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/29332924/multiple-recurrent-pseudoaneurysms-after-endovascular-repair-of-abdominal-aortic-aneurysm-in-a-patient-with-beh%C3%A3-et-s-disease
#19
Yohei Yamamoto, Yoshinori Inoue, Tsuyoshi Ichinose, Masato Nishizawa, Kimihiro Igari, Takahiro Toyofuku, Toshifumi Kudo
In Behçet's disease (BD) patients, endovascular repair is a reasonable alternative treatment for aortic aneurysms to avoid postoperative anastomotic pseudoaneurysms. However, there are some complications that may occur after endovascular repair. We herein report the case of a 40-year-old man with active BD developed recurrent aortic pseudoaneurysms at the proximal and distal margins of the stent graft and a femoral puncture site pseudoaneurysm 3 months after endovascular abdominal aortic aneurysm (AAA) repair...
January 15, 2018: Annals of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29317081/hyperaccuracy-three-dimensional-reconstruction-is-able-to-maximize-the-efficacy-of-selective-clamping-during-robot-assisted-partial-nephrectomy-for-complex-renal-masses
#20
Francesco Porpiglia, Cristian Fiori, Enrico Checcucci, Daniele Amparore, Riccardo Bertolo
BACKGROUND: Available technologies could avoid global ischemia for the removal of a renal tumor. OBJECTIVE: To present hyperaccuracy three-dimensional (HA3D) reconstruction during robot-assisted partial nephrectomy (RAPN) and compare its efficacy in sponsoring successful selective clamping of renal arterial branches during RAPN. DESIGN, SETTING, AND PARTICIPANTS: Patients undergoing RAPN (January 2016-July 2017) for renal mass PADUA score ≥10 who underwent abdominal computed tomography scan with angiography...
January 6, 2018: European Urology
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