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https://www.readbyqxmd.com/read/29033732/double-aortic-arch-presenting-with-respiratory-distress-a-case-report-and-review-of-the-literature
#1
Abdelhafid Houba, Mustapha Bensghir, Redouane Ahtil, Badr Slioui, Hicham Balkhi, Salim Jaafar Lalaoui
Tracheal compression by vascular structures in infants is uncommon and may be masked by nonspecific respiratory symptoms. Double aortic arch (DAA) is the most common vascular ring. We describe a case of a 9-month-old male infant presented with respiratory distress and found to have a DAA. In this report, the authors emphasize the consideration of this pathology-induced respiratory distress and discuss its anesthetic management.
October 2017: Saudi Journal of Anaesthesia
https://www.readbyqxmd.com/read/28944358/ceramic-vs-composite-veneering-of-full-arch-implant-supported-zirconium-frameworks-assessing-patient-preference-and-satisfaction-a-crossover-double-blind-randomised-controlled-trial
#2
Mauro Merli, Eugenio Bianchini, Giorgia Mariotti, Marco Moscatelli, Matteo Piemontese, Giorgio Rappelli, Michele Nieri
PURPOSE: The objectives of this two-period, crossover, mono-centred, double-blind, randomised controlled trial (RCT) were to compare two different materials used for full arch implant-supported prosthetic restorations with regard to patient preference and impact on a patient's quality of life. MATERIALS AND METHODS: Edentulous patients requesting one full arch restoration in the mandible or maxilla supported by dental implants were included in this study. Patients were randomised to receive either a full arch zirconia framework hand-veneered with ceramic, or a full arch zirconia framework hand-veneered with composite material...
2017: European Journal of Oral Implantology
https://www.readbyqxmd.com/read/28936103/double-c1-posterior-arches
#3
Pralaya Kishore Nayak
No abstract text is available yet for this article.
August 2017: Journal of Neurosciences in Rural Practice
https://www.readbyqxmd.com/read/28933235/aortopexy-for-life-threatening-airway-obstruction-following-division-of-double-aortic-arch
#4
Katrina Hammond-Jack, Karthik Vaidyanathan Ramakrishnan, Dilip S Nath
Symptoms of airway compression secondary to double aortic arch are relieved by division of one of the two aortic arches. However, in some cases inherent tracheomalacia and other factors may result in persistence of symptoms. We report one such occurrence in our experience and describe the use of aortopexy as a curative procedure to tackle this problem.
January 1, 2017: World Journal for Pediatric & Congenital Heart Surgery
https://www.readbyqxmd.com/read/28906510/retrospective-analysis-on-survival-rate-template-related-complications-and-prevalence-of-peri-implantitis-of-694-anodized-implants-placed-using-computer-guided-surgery-results-between-1-and-10-years-of-follow-up
#5
Marco Tallarico, Silvio Mario Meloni
PURPOSE: To report survival rate, early surgical template-related complications, and prevalence of peri-implantitis of dental implants placed in private practices using computer-guided, template-assisted surgery and followed between 1 and 10 years. MATERIALS AND METHODS: The present retrospective multicenter study evaluated data collected from fully or partially edentulous patients, with anodized-surface implants placed using computer-guided, template-assisted surgery between January 2006 and December 2015...
September 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28885582/effect-of-vertical-shoot-positioned-scott-henry-geneva-double-curtain-arch-cane-and-parral-training-systems-on-the-volatile-composition-of-albari%C3%A3-o-wines
#6
Mar Vilanova, Zlatina Genisheva, Miguel Tubio, Katia Álvarez, Jose Ramón Lissarrague, José Maria Oliveira
Viticultural practices influence both grape and wine quality. The influence of training systems on volatile composition was investigated for Albariño wine from Rías Baixas AOC in Northwest Spain. The odoriferous contribution of the compounds to the wine aroma was also studied. Volatile compounds belonging to ten groups (alcohols, C₆-compounds, ethyl esters, acetates, terpenols, C13-norisoprenoids, volatile phenols, volatile fatty acids, lactones and carbonyl compounds) were determined in Albariño wines from different training systems, Vertical Shoot-Positioned (VSP), Scott-Henry (SH), Geneva Double-Curtain (GDC), Arch-Cane (AC), and Parral (P) during 2010 and 2011 vintages...
September 8, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28854527/3d-imaging-evaluation-of-double-aortic-arch-with-mscta-a-case-report-and-mini-review
#7
Xu Zhu, Chun Wu, Yun He, Bin Qin, Haiyan Yang, Hong Huang, Xiaojuan Ji
Double aortic arch (DAA) is a rare congenital anomaly associated with the formation of a vascular ring. Patients with DAA commonly suffer from complications caused by intracardiac and extracardiac malformations and different degrees of airway stenosis. Multislice computed tomographic angiography (MSCTA) is an intuitive and effective medical imaging technique in clinical diagnosis of DAA. MSCTA can accurately manifest the aortic arch and the course of the descending aorta and airway stenosis in three-dimension (3D)...
August 24, 2017: Journal of X-ray Science and Technology
https://www.readbyqxmd.com/read/28852840/biomechanical-study-of-novel-unilateral-c1-posterior-arch-screws-and-c2-laminar-screws-combined-with-an-ipsilateral-crossed-c1-c2-pedicle-screw-rod-fixation-for-atlantoaxial-instability
#8
Kai Shen, Zhongliang Deng, Junsong Yang, Chao Liu, Ranxi Zhang
INTRODUCTION: Current surgical methods to treat atlantoaxial instability pose potential risks to the surrounding blood vessels and nerves of operative approach. Therefore, more secure and highly effective methods are expected. This study sought to assess the biomechanical efficacy of a novel unilateral double screw-rod fixation system by comparing with traditional and emerging fixation methods in cadaveric models. MATERIALS AND METHODS: Ligamentous cervical spines (C0-C7) from ten fresh cadaveric specimens were used to complete range of motion (ROM) test in their intact condition (control group), destabilization, and stabilization after different fixations, including unilateral C1-C2 pedicle screws (PS) with a screw-rod system (Group A), bilateral C1-C2 PS with screw-rod systems (Group B), unilateral C1 posterior arch screws (PAS) and C2 laminar screws (LS) combined with an ipsilateral paralleled C1-C2 PS-rod (Group C), and unilateral C1 PAS and C2 LS combined with an ipsilateral crossed C1-C2 PS-rod (Group D)...
August 29, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28851468/persistent-fifth-aortic-arch-the-great-pretender-in-clinical-practice
#9
David F A Lloyd, S Y Ho, Kuberan Pushparajah, Subhasis Chakraborty, Mohamed Nasser, Hideki Uemura, Rodney Franklin, Alan G Magee
Persistence of the embryonic "fifth aortic arch" in postnatal life is a rare, enigmatic - and at times controversial - condition, with variable anatomical forms and physiological consequences. First described in humans over 40 years ago by Van Praagh, the condition was labelled the "great pretender" by Gerlis 25 years later, because of its apparent propensity to mimic anatomically similar structures. Despite many subsequent case reports citing the condition, the true developmental origin of these structures remains unresolved, and has been the subject of debate among embryologists for more than a century...
August 30, 2017: Cardiology in the Young
https://www.readbyqxmd.com/read/28843327/role-of-computational-modelling-in-planning-and-executing-interventional-procedures-for-congenital-heart-disease
#10
REVIEW
Timothy C Slesnick
Increasingly, computational modelling and numerical simulations are used to help plan complex surgical and interventional cardiovascular procedures in children and young adults with congenital heart disease. From its origins more than 30 years ago, surgical planning with analysis of flow hemodynamics and energy loss/efficiency has helped design and implement many modifications to existing techniques. On the basis of patient-specific medical imaging, surgical planning allows accurate model production that can then be manipulated in a virtual surgical environment, with the proposed solutions finally tested with advanced computational fluid dynamics to evaluate the results...
September 2017: Canadian Journal of Cardiology
https://www.readbyqxmd.com/read/28843154/numerical-analysis-of-wall-shear-stress-in-ascending-aorta-before-tearing-in-type-a-aortic-dissection
#11
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/28840674/-case-report-comprehensive-treatment-of-forefoot-with-double-brachymetatarsia-in-one-surgical-stage
#12
I Caldiño-Lozada, O Gallegos-de la Torre, R Esperón-Hernández
Brachymetatarsia (shortening of the metatarsal) directly affects the transversal arch of the foot causing severe deformities, such as hallux valgus, divergent toes, overlapping toes, metatarsalgia, all of these alter the biomechanics of the foot and gait. Treatment consists of two main techniques, one-stage lengthening with bone graft or elongation through callotaxis with external fixator; there are variants of both techniques used to minimize the disadvantages of each. The objective of treatment must be to return the structural harmony to the forefoot, improving the biomechanics, resulting in a satisfactory outcome for the patients...
March 2017: Acta Ortopédica Mexicana
https://www.readbyqxmd.com/read/28833523/modeling-of-coarctation-of-aorta-in-human-fetuses-using-3d-4d-fetal-echocardiography-and-computational-fluid-dynamics
#13
Zhuo Chen, Yue Zhou, Jingying Wang, Xiaowei Liu, Shuping Ge, Yihua He
OBJECTIVES: We sought to develop a hemodynamic model of aortic and ductal arches using computational fluid dynamics (CFD) and 3D/4D spatio-temporal image correlation (STIC) fetal echocardiography and to investigate the hemodynamics of coarctation of aorta (CoA) in human fetuses using this approach. METHODS: We obtained 3D/4D STIC fetal echocardiographic images of the aortic and ductal arches (DA) in five normal fetuses. Based on these images, we simulated the hemodynamics in the two arches using CFD...
August 22, 2017: Echocardiography
https://www.readbyqxmd.com/read/28811940/recurrent-wheezing-and-cough-caused-by-double-aortic-arch-not-asthma
#14
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/28806758/developmental-vascular-remodeling-defects-and-postnatal-kidney-failure-in-mice-lacking-gpr116-adgrf5-and-eltd1-adgrl4
#15
Shun Lu, Shuya Liu, Astrid Wietelmann, Baktybek Kojonazarov, Ann Atzberger, Cong Tang, Ralph Theo Schermuly, Hermann-Josef Gröne, Stefan Offermanns
GPR116 (ADGRF5) and ELTD1 (ADGRL4) belong to different subfamilies of the adhesion G-protein-coupled receptor group but are both expressed in endothelial cells. We therefore analyzed their functions in mice lacking these receptors. While loss of GPR116 or ELTD1 alone had no obvious effect on cardiovascular or kidney function, mice lacking both, GPR116 and ELTD1, showed malformations of the aortic arch arteries and the cardiac outflow tract leading to perinatal lethality in about 50% of the mutants. In addition to cardiovascular malformations, surviving mice developed renal thrombotic microangiopathy as well as hemolysis and splenomegaly, and their lifespan was significantly reduced...
2017: PloS One
https://www.readbyqxmd.com/read/28798392/new-findings-in-a-400-million-year-old-devonian-placoderm-shed-light-on-jaw-structure-and-function-in-basal-gnathostomes
#16
Yuzhi Hu, Jing Lu, Gavin C Young
Arthodire placoderms have been proposed as the sister group of Chinese 'maxillate' placoderms plus all the more crownward gnathostomes. These basal groups provide key information for understanding the early evolution of jaws. Here, we test previous assumptions about placoderm jaw structure and function by using high-resolution computed tomography, digital dissection, and enlarged 3D printouts on a unique articulated 400 million-year-old buchanosteid arthrodire. The upper jaw has a double ethmoid and a palatobasal connection, but no otic connection; the dermal bone attachment for the quadrate is different to other placoderms...
August 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28771185/accuracy-analysis-of-a-dam-model-from-drone-surveys
#17
Elena Ridolfi, Giulia Buffi, Sara Venturi, Piergiorgio Manciola
This paper investigates the accuracy of models obtained by drone surveys. To this end, this work analyzes how the placement of ground control points (GCPs) used to georeference the dense point cloud of a dam affects the resulting three-dimensional (3D) model. Images of a double arch masonry dam upstream face are acquired from drone survey and used to build the 3D model of the dam for vulnerability analysis purposes. However, there still remained the issue of understanding the real impact of a correct GCPs location choice to properly georeference the images and thus, the model...
August 3, 2017: Sensors
https://www.readbyqxmd.com/read/28765648/role-of-aortic-geometry-on-stroke-propensity-based-on-simulations-of-patient-specific-models
#18
Hyo Won Choi, Tong Luo, Jose A Navia, Ghassan S Kassab
Stroke is a life threatening event that is expected to more than double over the next 40 years. Atrial fibrillation (AF) has been reported as a strong independent risk factor for stroke. We have previously shown that a hemodynamic perturbation by AF or reduced cardiac output and cycle length may have a significant impact on clot trajectory and thus embolic stroke propensity through the left common carotid artery using an idealized aortic arch model. Here, we show the dependence of flow patterns and hence stroke propensity on geometry of patient-specific aortas...
August 1, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28753895/oestradiol-releasing-biodegradable-mesh-stimulates-collagen-production-and-angiogenesis-an-approach-to-improving-biomaterial-integration-in-pelvic-floor-repair
#19
Naşide Mangır, Christopher J Hillary, Christopher R Chapple, Sheila MacNeil
BACKGROUND: Polypropylene meshes cause severe complications in some patients. Materials that are biomechanically compatible and can better integrate into host tissues are urgently needed. OBJECTIVE: To design an oestradiol-releasing electrospun poly-l-lactic acid (PLA) mesh and evaluate its ability to stimulate new extracellular matrix and new blood vessel formation. DESIGN, SETTING, AND PARTICIPANTS: Human adipose derived mesenchymal cells (ADMSC) were isolated from fat...
June 3, 2017: European Urology Focus
https://www.readbyqxmd.com/read/28746488/mandibular-dental-arch-short-and-long-term-spontaneous-dentoalveolar-changes-after-slow-or-rapid-maxillary-expansion-a-systematic-review
#20
Arthur César de Medeiros Alves, Olga Benário Vieira Maranhão, Guilherme Janson, Daniela Gamba Garib
Objective: The aim of this systematic review was to analyze the short and long-term spontaneous dentoalveolar changes of the mandibular dental arch after slow (SME) or rapid (RME) maxillary expansion in the mixed and early permanent dentitions. Methods: An electronic search was performed in the following databases: PubMed/Medline, Cochrane Library, Scopus, Embase and Web of Science. Eligibility criteria for article selection included randomized controlled trials and prospective studies written in English, with no restriction of year of publication, involving patients who underwent SME or RME during the mixed or early permanent dentitions...
May 2017: Dental Press Journal of Orthodontics
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