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https://www.readbyqxmd.com/read/28811940/recurrent-wheezing-and-cough-caused-by-double-aortic-arch-not-asthma
#1
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
#2
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
#3
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
#4
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
#5
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
#6
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
#7
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
https://www.readbyqxmd.com/read/28734449/double-aortic-arch-complicated-by-acute-type-a-dissection-in-an-aged-patient
#8
Kenji Toyokawa, Yukinori Moriyama, Takayuki Ueno, Kazuya Terazono, Yoshihiro Fukumoto
No abstract text is available yet for this article.
August 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28726262/double-aortic-arch-anomalies-in-children-a-systematic-20-year-single-center-study
#9
M Kaldararova, I Simkova, I Varga, P Tittel, M Kardos, M Ondriska, V Vrsanska, J Masura
INTRODUCTION: Aortic arch anomalies underlie numerous congenital disorders. Effectively diagnosing and treating them requires close understanding of cardiovascular embryology. As our Center serves the entire pediatric population of our country, we performed a comprehensive retrospective analysis of all aortic arch anomalies diagnosed at our Center over the past 20 years. MATERIALS AND METHODS: We analyzed 40 children with aortic arch anomalies, distinguishing two defect types: Group 1 displayed ring-forming anomalies, and Group 2 other types of aortic arch anomalies that did not form a vascular ring...
July 20, 2017: Clinical Anatomy
https://www.readbyqxmd.com/read/28709664/current-results-of-single-ventricle-palliation-of-patients-with-double-inlet-left-ventricle
#10
Bahaaldin Alsoufi, Courtney McCracken, Kirk Kanter, Subhadra Shashidharan, Brian Kogon
BACKGROUND: Double inlet left ventricle (DILV) is a heterogeneous single ventricle anomaly in which initial presentation, and consequently, timing and palliation mode vary based on morphology and degree of pulmonary or systemic outflow obstruction. Very few reports, mostly old, focused on palliation outcomes of DILV. We report current-era results and examine whether morphologic and subsequently surgical factors influence survival. METHODS: Fifty-eight infants with DILV underwent single ventricle palliation...
July 11, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28709623/endovascular-treatment-of-aortic-arch-aneurysm-with-a-single-branched-double-stage-stent-graft
#11
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/28705108/symptomatic-double-aortic-arch-in-an-adult-patient
#12
Pamela Moceri, Elie-Dan Schouver, Delphine Baudouy, Denis Doyen, Béatrice Bonello, Emile Ferrari
No abstract text is available yet for this article.
August 2017: Acta Cardiologica
https://www.readbyqxmd.com/read/28702970/a-novel-cad-cam-based-surgical-template-for-mandibular-osteoplasty-and-guided-implant-insertion
#13
G B Menchini Fabris, F Gelpi, E Giammarinaro, E Velasco Ortega, S Marconcini, U Covani
Bone shaping is often a necessary procedure prior to implant insertion in mandibular full-arch rehabilitations. Adopting guided surgery procedures is necessary to use two distinct templates: one for bone shaping, a second for guided implant insertion. The present report describes the case of a 60-year-old patient requiring a full-arch, immediately loaded implant-supported mandibular rehabilitation. A CAD/CAM-bone supported surgical template for osteoplasty was used to develop a template for guided implant during an all-on-six immediate-loaded computer-aided implant surgery...
July 13, 2017: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28701608/management-of-a-case-of-double-aortic-arch-with-tracheal-compression-complicated-with-postoperative-tracheal-restenosis
#14
Hemang Gandhi, T Vikram Kumar Naidu, Amit Mishra, Pankaj Garg, Jigar Surti, Visharad Trivedi, Himanshu Acharya
Tracheal stenosis in association with the double aortic arch (DAA) is uncommon; however, it carries a high risk of morbidity, mortality, and restenosis. Although surgery is the mainstay of managing a case of the DAA with tracheal stenosis, management of tracheal restenosis requires a multidisciplinary approach. In this case report, we present our successful experience in managing a child of DAA with tracheal stenosis who developed tracheal restenosis after sliding tracheoplasty of trachea.
July 2017: Annals of Cardiac Anaesthesia
https://www.readbyqxmd.com/read/28690293/tracheal-compression-caused-by-a-mediastinal-hematoma-after-interrupted-aortic-arch-surgery
#15
Qingwang Hua, Zhiyong Lin, Xingti Hu, Qifeng Zhao
Congenital abnormalities of the aortic arch include interrupted aortic arch (IAA), coarctation of the aorta (CoA), and double aortic arch (DAA). Aortic arch repair is difficult and postoperative complications are common. However, postoperative tracheobronchial stenosis with respiratory insufficiency is an uncommon complication and is usually caused by increased aortic anastomotic tension. We report here a case of tracheal compression by a mediastinal hematoma following IAA surgery. The patient underwent a repeat operation to remove the hematoma and was successfully weaned off the ventilator...
August 3, 2017: International Heart Journal
https://www.readbyqxmd.com/read/28689484/transcatheter-aortic-valve-implantation-as-a-bailout-procedure-for-acute-aortic-valve-regurgitation-during-endovascular-arch-repair
#16
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/28681466/a-case-of-complete-double-aortic-arch-visualized-by-transthoracic-echocardiography
#17
Naka Saito, Shingo Kato, Noritaka Saito, Tatsuya Nakachi, Kazuki Fukui, Tae Iwasawa, Masami Kosuge, Kazuo Kimura
A case of double aortic arch that was well visualized using transthoracic echocardiography is reported. A 38-year-old man underwent transthoracic echocardiography for the evaluation of dyspnea. A suprasternal view of transthoracic echocardiography showed the ascending aorta bifurcate to left and right aortic arches, with blood flow from the ascending aorta to bilateral aortic arches. The diagnosis of right side-dominant double aortic arch was made, and the patient's symptom was conceivably related to compression of the trachea due to a vascular ring...
July 6, 2017: Echocardiography
https://www.readbyqxmd.com/read/28662061/ultra-high-field-upper-extremity-peripheral-nerve-and-non-contrast-enhanced-vascular-imaging
#18
Shailesh B Raval, Cynthia A Britton, Tiejun Zhao, Narayanan Krishnamurthy, Tales Santini, Vijay S Gorantla, Tamer S Ibrahim
OBJECTIVE: The purpose of this study was to explore the efficacy of Ultra-high field [UHF] 7 Tesla [T] MRI as compared to 3T MRI in non-contrast enhanced [nCE] imaging of structural anatomy in the elbow, forearm, and hand [upper extremity]. MATERIALS AND METHOD: A wide range of sequences including T1 weighted [T1] volumetric interpolate breath-hold exam [VIBE], T2 weighted [T2] double-echo steady state [DESS], susceptibility weighted imaging [SWI], time-of-flight [TOF], diffusion tensor imaging [DTI], and diffusion spectrum imaging [DSI] were optimized and incorporated with a radiofrequency [RF] coil system composed of a transverse electromagnetic [TEM] transmit coil combined with an 8-channel receive-only array for 7T upper extremity [UE] imaging...
2017: PloS One
https://www.readbyqxmd.com/read/28656170/anatomic-spring-ligament-and-posterior-tibial-tendon-reconstruction-new-concept-of-double-bundle-ptt-and-a-novel-technique-for-spring-ligament
#19
Alireza Mousavian, Jakrapong Orapin, Apisan Chinanuvathana, Lew C Schon
A new technique in spring ligament reconstruction using medial half of posterior tibial tendon is demonstrated as a means of supporting the arch. In addition a new concept of double bundle PTT reconstruction based on anatomical attachments of original PTT is presented with the goal of obtaining the full function of PTT.
May 2017: Archives of Bone and Joint Surgery
https://www.readbyqxmd.com/read/28642827/vertical-and-transverse-management-with-transpalatal-arches-in-an-adult-with-class-iii-malocclusion
#20
R M Yañez-Vico, M Cadenas de Llano Perula, E Solano-Reina
The transpalatal arch might be one of the most common intraoral auxiliary fixed appliances used in orthodontics in order to provide dental anchorage. The aim of the present case report is to describe a case in which an adult patient with a tendency to class III, palatal compression, and bilateral posterior crossbite was treated with double transpalatal bars in order to control the torque of both the first and the second molars. Double transpalatal arches on both first and second maxillary molars are a successful appliance in order to control the posterior sectors and improve the torsion of the molars...
2017: Case Reports in Dentistry
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