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https://www.readbyqxmd.com/read/28930824/evaluating-the-morphology-of-the-left-atrial-appendage-by-a-transesophageal-echocardiographic-3-dimensional-printed-model
#1
Hongning Song, Qing Zhou, Lan Zhang, Qing Deng, Yijia Wang, Bo Hu, Tuantuan Tan, Jinling Chen, Yiteng Pan, Fazhi He
The novel 3-dimensional printing (3DP) technique has shown its ability to assist personalized cardiac intervention therapy. This study aimed to determine the feasibility of 3D-printed left atrial appendage (LAA) models based on 3D transesophageal echocardiography (3D TEE) data and their application value in treating LAA occlusions.Eighteen patients with transcatheter LAA occlusion, and preprocedure 3D TEE and cardiac computed tomography were enrolled. 3D TEE volumetric data of the LAA were acquired and postprocessed for 3DP...
September 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28928618/congenital-left-atrial-appendage-aneurysm-atypical-presentation
#2
Mehdi Bamous, Mahdi Aithoussa, Ayoub Abetti, Abdelatif Boulahya
Congenital left atrial appendage aneurysm is a rare condition caused by dysplasia of the atrial muscles. We report a case of a 14-year-old boy, with a 5-month history of cough and in sinus rhythm. Transthoracic echocardiography and computerized tomographic angiography confirmed the aneurysm of the left atrial appendage which was resected through median sternotomy on cardiopulmonary bypass. This case is presented not only for its rarity but also for its atypical clinical presentation.
September 2017: Annals of Pediatric Cardiology
https://www.readbyqxmd.com/read/28928613/clarifying-the-anatomy-and-physiology-of-totally-anomalous-systemic-venous-connection
#3
REVIEW
Saurabh Kumar Gupta, Rajnish Juneja, Robert H Anderson, Gurpreet S Gulati, Velayoudam Devagorou
The description of totally anomalous systemic venous connection is limited to case reports. In this review, we seek to clarify anatomic, physiologic, and hemodynamic aspects of this extremely rare anomaly. We also present findings of two patients in whom connection of all the systemic veins was anomalous. In the first patient, with usual atrial arrangement, all systemic veins, including the coronary sinus, were connected anomalously to the morphologically left atrium. Limited left-to-right shunt across an atrial septal defect provided the only source of blood flow to the lungs...
September 2017: Annals of Pediatric Cardiology
https://www.readbyqxmd.com/read/28924077/perforation-of-the-left-atrial-appendage-caused-by-inadvertent-deployment-of-a-soft-j-tipped-guidewire-during-radiofrequency-hot-balloon-ablation
#4
Hiro Yamasaki, Fumi Yamagami, Takeshi Machino, Kenji Kuroki, Yukio Sekiguchi, Kazutaka Aonuma, Akihiko Nogami
No abstract text is available yet for this article.
September 16, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28922521/molecular-and-morphological-characterization-of-anncaliia-azovica-sp-n-microsporidia-infecting-niphargogammarus-intermedius-crustacea-amphipoda-from-the-azov-sea
#5
Yuri S Tokarev, Yuliya Y Sokolova, Aleksandra A Vasilieva, Irma V Issi
Five out of one hundred adults of Niphargogammarus intermedius caught at the Azov sea shore were found to be infected with microsporidia. The infection was found in the subcuticular fat body and myocytes. Parasites developed in direct contact with host cells, displayed a disporoblastic sporogony and diplokaryotic arrangement of nuclei at all stages. Spores were oval, 4.6-5.8x2.6-3.0 μm. Exospore appendages, vesicular-tubular secretions and the anisofilar polar filament indicated a similarity to Anncaliia species...
September 18, 2017: Journal of Eukaryotic Microbiology
https://www.readbyqxmd.com/read/28921386/midterm-outcomes-of-two-staged-hybrid-ablation-of-persistent-and-long-standing-persistent-atrial-fibrillation-using-the-versapolar-epicardial-surgical-device-and-subsequent-catheter-ablation
#6
Petr Budera, Pavel Osmancik, Dalibor Herman, Jana Zdarska, David Talavera, Anna Mala, Radka Prochazkova, Zbynek Straka
PURPOSE: Hybrid ablation of atrial fibrillation (AF) is a promising treatment strategy for patients with non-paroxysmal AF, although, data regarding mid-term outcomes are limited. METHODS: Patients with persistent or long-standing persistent AF were enrolled. Initially, a thoracoscopic, right-sided, epicardial ablation was performed, with a goal of creating a box lesion on the posterior wall of the left atrium; a novel versapolar radiofrequency (RF) catheter was used...
September 18, 2017: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/28918896/role-of-circulating-endothelial-progenitor-cells-in-the-reparative-mechanisms-of-stable-ischemic-myocardium
#7
D Morrone, F Felice, C Scatena, A De Martino, M L E Picoi, N Mancini, S Blasi, M Menicagli, R Di Stefano, U Bortolotti, A G Naccarato, A Balbarini
BACKGROUND: Mobilization of endothelial progenitor cells (EPCs) into circulation from bone marrow in patients with acute myocardial infarction has strong scientific evidence; less is known about EPC mobilization in patients with stable coronary artery disease (CAD). The aim of this study was to investigate the association of stable ischemic heart disease with EPC levels in tissue and blood. METHODS: Fifty-five consecutive patients admitted to a single treatment center for valve or coronary artery bypass grafting (CABG) surgeries were included in the study...
September 14, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28918228/primary-photosensitization-and-contact-dermatitis-caused-by-malachra-fasciata-jacq-n-v-malvaceae-in-sheep
#8
Valber Onofre de Araújo, Temístocles Soares Oliveira Neto, Sara Vilar Dantas Simões, Thatyana Kelly Ferreira da Silva, Franklin Riet-Correa, Ricardo Barbosa Lucena
Farmers from Paraiba state, Northeast Brazil, claim that Malachra fasciata causes cutaneous lesions in sheep. To test its toxicity the plant was harvested daily and fed ad libitum for 21 days to 3 sheep as the sole food source (# 1-3). An additional sheep (# 4) was maintained as a control. Cutaneous lesions of photosensitization initiated after 7 days and increased continuously over the next 21 days. The dose ingested varied between 129 g/kg to 175 g/kg. Alopecia, hyperemia and crusting were observed in the animals...
September 14, 2017: Toxicon: Official Journal of the International Society on Toxinology
https://www.readbyqxmd.com/read/28917494/early-dislodgment-and-migration-of-a-left-atrial-appendage-closure-device
#9
Mohamed Sanhoury, Gaetano Fassini, Antonio Dello Russo, Giuseppe Lumia, Antonio Bartorelli
A 68-year-old man underwent pulmonary vein isolation with cryoballoon combined with left atrial appendage closure using a LAmbre device. The device was dislodged and embolized early after implantation with no symptoms, and it was retrieved percutaneously. An early in-hospital check of the device position after implantation is important for early recognition of any possible device-related complication.
August 9, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28913170/comparison-of-tissue-processing-methods-for-microvascular-visualization-in-axolotls
#10
Rodrigo Montoro, Renee Dickie
The vascular system, the pipeline for oxygen and nutrient delivery to tissues, is essential for vertebrate development, growth, injury repair, and regeneration. With their capacity to regenerate entire appendages throughout their lifespan, axolotls are an unparalleled model for vertebrate regeneration, but they lack many of the molecular tools that facilitate vascular imaging in other animal models. The determination of vascular metrics requires high quality image data for the discrimination of vessels from background tissue...
2017: MethodsX
https://www.readbyqxmd.com/read/28905045/left-atrial-appendage-occlusion-in-a-patient-with-hereditary-hemorrhagic-telangiectasia-and-atrial-fibrillation-a-therapeutic-option-worth-considering
#11
Maksymilian Mielczarek, Rafał Gałąska, Piotr Drewla, Dorota Kulawiak-Gałąska, Dariusz Ciećwierz, Marcin Gruchała
No abstract text is available yet for this article.
2017: Arch Med Sci Atheroscler Dis
https://www.readbyqxmd.com/read/28902652/case-image-occurrence-of-atrial-fibrillation-while-isolating-the-left-atrial-appendage-due-to-vasospasm-at-the-sinoatrial-node-artery
#12
Uğur Canpolat, Banu Evranos, Hikmet Yorgun, Tuncay Hazırolan, Kudret Aytemir
No abstract text is available yet for this article.
September 2017: Türk Kardiyoloji Derneği Arşivi: Türk Kardiyoloji Derneğinin Yayın Organıdır
https://www.readbyqxmd.com/read/28901226/isolated-right-juxtaposition-of-the-atrial-appendages-in-adult-with-bicuspid-aortic-valve-stenosis
#13
Alaae Boutayeb, Fayçal Kenassi, Adil Bensouda, Lahcen Marmade
We report the case of a 30-year-old male who had symptomatic bicuspid aortic valve stenosis. Operative findings unexpectedly revealed right juxtaposition of the atrial appendages. This is a rare association, as juxtaposition of atrial appendages is generally associated with more complex forms of congenital heart disease. The patient underwent successful surgery with uneventful postoperative course.
September 2017: World Journal for Pediatric & Congenital Heart Surgery
https://www.readbyqxmd.com/read/28899635/fast-technique-for-the-identification-of-gilbertella-persicaria-via-optical-microscopy
#14
Isabel Cruz-Lachica, Isidro Marquez-Zequera, Raul Allende-Molar, Josefa Adriana Sañudo-Barajas, Josefina Leon-Felix, Raymundo Saul Garcia-Estrada
Gilbertella persicaria is an important phytopathogen that is confused with Mucor spp. and Rhizopus spp. The main distinguishing characteristic of G. persicaria is the presence of appendages in sporangiospores, and their observation by conventional staining techniques generally fails. A technique is described using light microscopy for fast and reliable diagnosis.
September 9, 2017: Journal of Microbiological Methods
https://www.readbyqxmd.com/read/28898453/echocardiographic-guidance-and-monitoring-of-left-atrial-appendage-closure-with-atriclip-during-open-chest-cardiac-surgery
#15
Rachele Contri, Sara Clivio, Tiziano Torre, Tiziano Cassina
Left atrial appendage (LAA) closure prevents thromboembolic risk and avoids lifelong anticoagulation due to atrial fibrillation (AF). Nowadays, AtriClip, a modern epicardial device approved in June 2010, allows external and safe closure of LAA in patients undergoing cardiac surgery during other open-chest cardiac surgical procedures. Such a surgical approach and its epicardial deployment differentiates LAA closure with AtriClip from percutaneous closure techniques such as Watchman (Boston Scientific, Marlborough, MA, USA), Lariat (SentreHEART Inc...
September 12, 2017: Echocardiography
https://www.readbyqxmd.com/read/28894860/elastic-and-viscous-bond-components-in-the-adhesion-of-colloidal-particles-and-fibrillated-streptococci-to-qcm-d-crystal-surfaces-with-different-hydrophobicities-using-kelvin-voigt-and-maxwell-models
#16
Rebecca van der Westen, Prashant K Sharma, Hans De Raedt, Ijsbrand Vermue, Henny C van der Mei, Henk J Busscher
A quartz-crystal-microbalance with dissipation (QCM-D) can measure molecular mass adsorption as well as register adhesion of colloidal particles. However, analysis of the QCM-D output to quantitatively analyze adhesion of (bio)colloids to obtain viscoelastic bond properties is still a subject of debate. Here, we analyze the QCM-D output to analyze the bond between two hydrophilic streptococcal strains 91 nm long and without fibrillar surface appendages and micron-sized hydrophobic polystyrene particles on QCM-D crystal surfaces with different hydrophobicities, using the Kelvin-Voigt model and the Maxwell model...
September 12, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28894637/epidermal-stem-cells-in-skin-wound-healing
#17
REVIEW
Yuanyuan Li, Jamie Zhang, Jiping Yue, Xuewen Gou, Xiaoyang Wu
Significance: Skin serves as a protective barrier for mammals. Epidermal stem cells are responsible for maintaining skin homeostasis. When cutaneous injuries occur, skin homeostasis and integrity are damaged, leading to dire consequences such as acute, chronic, or infected wounds. Skin wound healing is an intrinsic self-saving chain reaction, which is crucial to facilitating the replacement of damaged or lost tissue. Recent Advances: An immense amount of research has uncovered the underlying mechanisms behind the complex and highly regulated wound healing process...
September 1, 2017: Advances in Wound Care
https://www.readbyqxmd.com/read/28894246/the-vicissicaudata-revisited-insights-from-a-new-aglaspidid-arthropod-with-caudal-appendages-from-the-furongian-of-china
#18
Rudy Lerosey-Aubril, Xuejian Zhu, Javier Ortega-Hernández
Cambrian marine ecosystems were dominated by arthropods, and more specifically artiopods. Aglaspidids represent an atypical group amongst them, not the least because they evolved and rapidly diversified during the late Cambrian, a time interval between the two diversification events of the Early Palaeozoic. Recent phylogenetic analyses have retrieved aglaspidids within the Vicissicaudata, a potentially important, but difficult to define clade of artiopods. Here we describe a new aglaspidid from the Furongian Guole Konservat-Lagerstätte of South China...
September 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28890186/ionophores-at-work-exploring-the-interaction-of-guanosine-based-amphiphiles-with-phospholipid-membranes
#19
Giuseppe Vitiello, Domenica Musumeci, Alexandros Koutsioubas, Luigi Paduano, Daniela Montesarchio, Gerardino D'Errico
An amphiphilic derivative of guanosine, carrying a myristoyl group at the 5'-position and two methoxy(triethylene glycol) appendages at the 2' and 3'-positions (1), endowed with high ionophoric activity, has been here studied in its interaction mode with a model lipid membrane along with its 5'-spin-labelled analogue 2, bearing the 5-doxyl-stearic in lieu of the myristic residue. Electron spin resonance spectra, carried out on the spin-labelled nucleolipid 2 in mixture with a DOPC/DOPG phospholipid bilayer, on one side, and on spin-labelled lipids mixed with 1, on the other, integrated with dynamic light scattering and neutron reflectivity measurements, allowed getting an in-depth picture of the effect of the ionophores on membrane structure, relevant to clarify the ion transport mechanism through lipid bilayers...
September 7, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28889292/congo-red-stain-identifies-matrix-overproduction-and-is-an-indirect-measurement-for-c-di-gmp-in-many-species-of-bacteria
#20
Christopher J Jones, Daniel J Wozniak
Congo red is a diazo textile dye that has been used to visualize the production of amyloid fibers for nearly a century. Microbiological applications were later developed, especially in identifying strains that produce amyloid appendages called curli and overexpressing polysaccharides in the biofilm matrix. The second messenger cyclic diguanylate (c-di-GMP) regulates the production of biofilm matrix polysaccharides, and therefore Congo red staining of samples can be utilized as an indirect measurement of elevated c-di-GMP production in bacteria...
2017: Methods in Molecular Biology
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