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Aortic arch branches

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https://www.readbyqxmd.com/read/28899499/mechanisms-underlying-antiatherosclerotic-properties-of-an-enriched-fraction-obtained-from-ilex-paraguariensis-a-st-hil
#1
Patrícia Gonçalves Santiago, Francielly Mourão Gasparotto, Karimi Sater Gebara, Flavia Barbieri Bacha, Francislaine Aparecida Dos Reis Lívero, Maria Angélica Strapazon, Euclides Lara Cardozo Junior, Cândida Aparecida Leite Kassuya, Lauro Mera de Souza, Arquimedes Gasparotto Junior
BACKGROUND: Ilex paraguariensis A. St. Hil. var. paraguariensis (Aquifoliaceae) popularly known as 'mate' is an important species native to South America. Despite numerous studies showing significant antioxidant and lipid lowering properties, the antiatherosclerotic mechanisms of this species remain unknown. PURPOSE: To evaluate the possible antiatherosclerotic effects of a butanolic fraction (n-BFIP) obtained from I. paraguariensis and to investigate the molecular mechanisms involved in this activity...
October 15, 2017: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/28887263/changes-in-geometry-and-cardiac-deformation-of-the-thoracic-aorta-after-thoracic-endovascular-aortic-repair-tevar
#2
Kelsey Hirotsu, Ga-Young Suh, Jason T Lee, Michael D Dake, Dominik Fleischmann, Christopher P Cheng
BACKGROUND: TEVAR has dramatically expanded treatment options for patients with thoracic aortic pathology. The interaction between endografts and the dynamic anatomy of the thoracic aorta is not well characterized for repetitive physiologic stressors and subsequent issues related to long-term durability. Through 3D modeling we sought to quantify cardiac-induced aortic deformation before and after TEVAR to assess the impact of endografts on dynamic aortic anatomy. METHODS: Eight patients with acute (n = 4) or chronic (n = 3) Type B dissections, or chronic arch aneurysm (n = 1), underwent TEVAR with a single (n = 5) or multiple (n = 3) Gore C-TAG(s)...
September 5, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28875363/implantation-of-unibody-single-branched-stent-graft-for-patients-with-type-b-aortic-dissections-involving-the-left-subclavian-artery-1-year-follow-up-outcomes
#3
He Huang, Yuanyong Jiao, Yepeng Zhang, Yuelin Zhu, Zhao Liu, Tong Qiao, Changjian Liu, Xiwei Zhang, Min Zhou
OBJECTIVE: To report the early results of castor device, a kind of unibody single-branched stent graft, in the treatment of type B aortic dissection (TBAD) involving the LSA. METHODS: From April 2013 to February 2014, 21 patients with TBADs underwent TEVAR with LSA revascularization by unibody single-branched stent grafts. Three patients with penetrating aortic ulcers in the aortic arch received additional reconstruction of left common carotid artery with chimney technique...
September 5, 2017: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/28865978/a-systematic-review-and-meta-analysis-of-variations-in-branching-patterns-of-the-adult-aortic-arch
#4
Patrick Popieluszko, Brandon Michael Henry, Beatrice Sanna, Wan Chin Hsieh, Karolina Saganiak, Przemysław A Pękala, Jerzy A Walocha, Krzysztof A Tomaszewski
OBJECTIVE: The aortic arch (AA) is the main conduit of the left side of the heart, providing a blood supply to the head, neck, and upper limbs. As it travels through the thorax, the pattern in which it gives off the branches to supply these structures can vary. Variations of these branching patterns have been studied; however, a study providing a comprehensive incidence of these variations has not yet been conducted. The objective of this study was to perform a meta-analysis of all the studies that report prevalence data on AA variants and to provide incidence data on the most common variants...
August 30, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28843154/numerical-analysis-of-wall-shear-stress-in-ascending-aorta-before-tearing-in-type-a-aortic-dissection
#5
Qingzhuo Chi, Ying He, Yong Luan, Kairong Qin, Lizhong Mu
Although the incidence of many cardiovascular diseases has declined as medical treatments have improved, the prevalence of aortic dissection (AD) has increased. Compared to type B dissections, type A dissections are more severe, and most patients with type A dissections require surgical treatment. The objective of this study was to investigate the relationships between the wall shear stress (WSS) on the aortic endothelium and the frequent tearing positions using computational fluid dynamics. Five type A dissection cases and two normal aortas were included in the study...
August 1, 2017: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/28811940/recurrent-wheezing-and-cough-caused-by-double-aortic-arch-not-asthma
#6
Qiao Zhang, Zhou Fu, Jihong Dai, Gang Geng, Wenlong Fu, Daiyin Tian
INTRODUCTION: Double aortic arch is a congenital vascular abnormality in which the connected segments and their branches course between and compress the trachea and esophagus, often resulting in invariable airway compression. CASE PRESENTATION: A 4-year-old boy with a history of recurrent wheezing was admitted to our hospital for evaluation of asthma based on his past medical history, persistent cough, wheezing, and airway hyperresponsiveness by lung function test...
2017: Case Reports in Cardiology
https://www.readbyqxmd.com/read/28754428/mid-term-results-of-chimney-and-periscope-grafts-in-supra-aortic-branches-in-high-risk-patients
#7
F Pecoraro, M Lachat, N S Cayne, D Pakeliani, Z Rancic, G Puippe, F J Criado, T Pfammatter, F J Veith, B Krüger, T A Neff
PURPOSE: Report mid-term outcomes of thoracic endovascular aneurysm repair (TEVAR) with chimney and periscope grafts (CPG) in supra-aortic branches (SAB). METHODS: Retrospective analysis, from October 2009 to May 2014, of patients with aneurysms requiring TEVAR with zone 0/1/2 proximal landing in association with at least one CPG in the SAB. All patients were considered at high risk for conventional surgery. Peri-operative mortality and morbidity, retrograde type A dissection, maximum aortic transverse diameter (TD) and its post-operative evolution, endoleak, survival, freedom from cardiovascular re-interventions, and CPG freedom from occlusion during the follow-up were analysed...
July 25, 2017: European Journal of Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/28748863/in-vitro-stent-graft-fenestration-to-preserve-all-supra-aortic-branches-in-the-treatment-of-a-stanford-type-a-aortic-arch-dissection
#8
Tun Wang, Chang Shu, Ming Li, Alan Dardik, Quan-Ming Li
No abstract text is available yet for this article.
August 5, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28747077/sandwich-technique-for-endovascular-repair-of-acute-type-a-aortic-dissection
#9
Feng Gao, Qian Zeng, Fangming Lin, Xiaohu Ge
OVERVIEW: To describe a new endovascular procedure for acute type A aortic dissection (TAAD) repair. METHODS: Between 2013 and 2016, 12 patients (average age 54±9.6 years; 10 men) with acute TAAD (mean EURO score 11.4%±3.2%, range 5-17) and unfit for surgery underwent thoracic endovascular aortic repair (TEVAR) with 2 periscope grafts to preserve blood supply to supra-aortic branches plus bypass grafting as needed. If the ascending aorta was dilated to >40 mm, sternotomy was performed to wrap the ascending aorta and reduce its diameter to accommodate the aortic stent-grafts...
July 1, 2017: Journal of Endovascular Therapy
https://www.readbyqxmd.com/read/28746880/tgf-%C3%AE-signaling-is-necessary-and-sufficient-for-pharyngeal-arch-artery-angioblast-formation
#10
Maryline Abrial, Noëlle Paffett-Lugassy, Spencer Jeffrey, Daniel Jordan, Evan O'Loughlin, Charles J Frederick, C Geoffrey Burns, Caroline E Burns
The pharyngeal arch arteries (PAAs) are transient embryonic blood vessels that mature into critical segments of the aortic arch and its branches. Although defects in PAA development cause life-threating congenital cardiovascular defects, the molecular mechanisms that orchestrate PAA morphogenesis remain unclear. Through small-molecule screening in zebrafish, we identified TGF-β signaling as indispensable for PAA development. Specifically, chemical inhibition of the TGF-β type I receptor ALK5 impairs PAA development because nkx2...
July 25, 2017: Cell Reports
https://www.readbyqxmd.com/read/28743203/biventricular-repair-in-interrupted-aortic-arch-type-c-with-aortic-atresia
#11
Dhananjay P Malankar, Andrew C Glatz, Paul M Weinberg, James W Gaynor
We report a case of interrupted aortic arch type C with aortic atresia and a ventricular septal defect with two well-developed ventricles, who underwent a successful single-stage biventricular repair with the modified Yasui procedure and arch reconstruction. Angiography done during conduit revision showed bilateral brachiocephalic trunks with high branching. The child is doing well six years after the initial operation.
January 1, 2017: World Journal for Pediatric & Congenital Heart Surgery
https://www.readbyqxmd.com/read/28740679/three-dimensional-printing-guided-precise-surgery-for-right-sided-aortic-arch-associated-with-kommerell-s-diverticulum
#12
Nan Chen, Kai Zhu, Hongqiang Zhang, Xiaoning Sun, Chunsheng Wang
Right-sided aortic arch associated with Kommerell's diverticulum is a rare congenital defect of aorta with complexity. The challenging surgical treatment calls for a direct and entire visibility of aorta and its branches which can be provided by the three-dimensional (3D) printing technique. A 42-year-old man with right-sided aortic arch, Kommerell's diverticulum and an aberrant left subclavian artery underwent the surgery with the guiding assistance of 3D printed model. The satisfying outcome suggests the novel combination of 3D printing technique and surgical procedure a promising perspective on treating complex aortic defect...
June 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28734626/staged-treatment-of-mega-aortic-syndrome-using-the-frozen-elephant-trunk-and-hybrid-thoracoabdominal-repair
#13
Asimakis Gkremoutis, Andreas Zierer, Thomas Schmitz-Rixen, Ali El-Sayed Ahmad, Erhard Kaiser, Michael Keese, Thomas Schmandra
OBJECTIVE: We report our experience with a staged hybrid approach for the treatment of extended aortic disease, also known as "mega aortic syndrome." METHODS: A total of 15 patients (10 male, 5 female) underwent staged repair of the thoracoabdominal aorta, consisting of 3 separate stages (repair of ascending aorta and aortic arch using the frozen elephant trunk technique and hybrid thoracoabdominal repair with debranching of the renovisceral branches and stent graft implantation)...
June 24, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28709623/endovascular-treatment-of-aortic-arch-aneurysm-with-a-single-branched-double-stage-stent-graft
#14
Augusto D'Onofrio, Michele Antonello, Mario Lachat, David Planer, Andrea Manfrin, Andrea Bagno, David Pakeliani, Franco Grego, Gino Gerosa
No abstract text is available yet for this article.
July 11, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28705446/a-novel-sax-stent-method-in-treatment-of-ascending-aorta-and-aortic-arch-aneurysms-evaluated-by-finite-element-simulations
#15
M C Arokiaraj, M De Beule, G De Santis
OBJECTIVES: A novel stent method to simplify treatment of proximal ascending aorta and aortic arch aneurysms was developed and investigated by finite element analysis. Therapy of ascending aortic and aortic arch aneurysms is difficult and challenging and is associated with various complications. METHODS: A 55mm wide×120mm long stent was designed without the stent graft and the stent was deployed by an endovascular method in a virtual patient-specific aneurysm model...
February 2017: J Med Vasc
https://www.readbyqxmd.com/read/28693049/hybrid-repair-techniques-for-complex-aneurysms-and-dissections-involving-the-aortic-arch-and-thoracic-aorta
#16
Rami Tadros, Scott R Safir, Peter L Faries, Daniel K Han, Sharif Ellozy, Rajiv K Chander, James F McKinsey, Michael L Marin, Allan S Stewart
Aortic aneurysms involving the ascending aorta, aortic arch, and descending thoracic aorta have been a challenging entity to surgically treat for over 60 years. Despite the mortality of the disease, early open surgical procedures also had significant morbidity and mortality. The inherent risk in treating multiple anatomic segments simultaneously led to the innovation of the staged elephant trunk (ET) approach by Borst in 1983. To avoid the thoracotomy and associated complications related to the second stage of the procedure, an endovascular completion paradigm was begun by Volodos in 1991...
July 25, 2017: Surgical Technology International
https://www.readbyqxmd.com/read/28693048/the-use-of-branched-endografts-for-the-aortic-arch-in-the-endovascular-era
#17
Rami O Tadros, Scott R Safir, Peter L Faries, Daniel K Han, Rajiv K Chander, Cherrie Z Abraham, Michael L Marin, Allan S Stewart
The endovascular realm has steadily increased its footing in the treatment of the aorta and all of its territories since the foundational case in 1990 by Parodi. The aortic arch, however, continues to be one of the last bastions for treatment via open surgery, which remains the gold standard. Significant comorbidity and prior cardiac surgery prevent open surgery from being the only preferred option, allowing novel endovascular procedures to be considered. Since 1999, more advanced endovascular systems have been created by companies such as Cook Medical, Bolton Medical, Medtronic, Endospan, Gore Medical, and, recently, Kawasumi...
July 25, 2017: Surgical Technology International
https://www.readbyqxmd.com/read/28689951/spot-stenting-of-supra-aortic-branch-vessels-for-residual-type-a-dissection
#18
Ciro Ferrer, Raffaele Grande, Luigi Venturini, Valerio Scarano Catanzaro, Gabriele Maritati, Luca di Marzo
of this report is to describe the exclusion of the false lumen in a residual type A aortic dissection (TAAD) by the deployment of two covered stents: one in the right common carotid artery (RCCA) and one in the left subclavian artery (LSA). A 77-year-old female, already treated with ascending aorta replacement for acute TAAD, was referred to our center for a 97-mm post-dissection arch aneurysm. A computed tomography angiography (CTA) showed false lumen patency by reperfusion from secondary tears located at level of RCCA and LSA...
July 6, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28689484/transcatheter-aortic-valve-implantation-as-a-bailout-procedure-for-acute-aortic-valve-regurgitation-during-endovascular-arch-repair
#19
Adrien Hertault, Rachel E Clough, Thomas Modine, Jean-Luc Auffray, Mohamad Koussa, Stéphan Haulon
PURPOSE: To report emergent transcatheter aortic valve implantation (TAVI) to treat acute severe aortic regurgitation caused by valve cusp dysfunction following proximal migration of an endograft implanted in the ascending aorta during endovascular arch repair. CASE REPORT: A 65-year-old man had been previously treated with thoracic and fenestrated endografts in a 2-stage procedure for a chronic type B dissection. At 2-year follow-up, aneurysmal evolution of the distal arch led to development of a proximal type Ia endoleak...
July 1, 2017: Journal of Endovascular Therapy
https://www.readbyqxmd.com/read/28686325/rnf213-variants-in-a-child-with-phace-syndrome-and-moyamoya-vasculopathy
#20
Kala F Schilter, Jack E Steiner, Wendy Demos, Mohit Maheshwari, Jeremy W Prokop, Elizabeth Worthey, Beth A Drolet, Dawn H Siegel
Segmental infantile hemangiomas (IH) can be associated with congenital anomalies in a regional distribution. PHACE refers to large cervicofacial segmental IH in association with congenital anomalies of the aortic arch and medium-sized arteries of the head and neck, as well as structural anomalies of the posterior fossa and eye. A subset of PHACE patients have arterial anomalies that progress to moyamoya vasculopathy (MMV). MMV is defined as stenosis of the supraclinoid segment of the internal carotid arteries and/or their major branches, with subsequent development of a compensatory collateral vessel network...
July 7, 2017: American Journal of Medical Genetics. Part A
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