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John Joseph Brady, Christie Hirsch Reilly, Robert Guay, Uday Dasika
OBJECTIVE: Because of decreased tactile sensation with thoracoscopic approaches to biopsy, localization preoperatively and intraoperatively is important for successful biopsy. Our study evaluated the technique of combined computed tomography-guided hookwire and methylene blue localization. METHODS: Seventy-five patients from November 2007 to August 2013 who underwent combined Hawkins hookwire and methylene blue localization of 76 total pulmonary nodules before video-assisted thoracic surgery-guided wedge resection were retrospectively reviewed...
June 14, 2018: Innovations: Technology and Techniques in Cardiothoracic and Vascular Surgery
Shijie Zhen, Jin-Chuan Mao, Long Chen, Siyang Ding, Wenwen Luo, Xiao-Shun Zhou, Anjun Qin, Zujin Zhao, Ben Zhong Tang
Through-bond conjugated molecules are the major frameworks for traditional molecular wires, while through-space conjugated units are rarely utilized and studied although they have shown unique conducting potential. Herein, we present novel single-molecule wires built on through-space conjugated hexaphenylbenzene. Their conductance, measured by the scanning tunneling microscopy based break-junction technique, increases with the improvement of through-space conjugation and finally reaches a remarkable value (12...
June 18, 2018: Nano Letters
Jinxin Yang, Zhendong Zhang, Hui Cheng, Kai Xiao, Dianzhong Luo, Hong Zhang
AIM: To investigate the incidence, risk factors, and the last follow-up recovery status of sciatic and femoral nerve injury among patients who received Bernese peri-acetabular osteotomy (PAO). PATIENTS AND METHODS: The clinical file of 643 consecutive patients who received PAO from June 2012 to June 2016 was retrospectively reviewed. The number of nerve injury patients was calculated and the causes of injury were recorded. RESULTS: The sciatic or femoral nerve injury occurred in eight patients (1...
June 18, 2018: International Orthopaedics
Márcio Aurélio Aita, Ricardo Carvalho Mallozi, Willian Ozaki, Douglas Hideo Ikeuti, Daniel Alexandre Pereira Consoni, Gustavo Mantovanni Ruggiero
Objectives: To measure the quality of life and clinical outcomes of patients treated with interosseous membrane (IOM) ligament reconstruction of the forearm, using the brachioradialis (BR), and describe a new surgical technique for the treatment of joint instability of the distal radioulnar joint (DRUJ). Methods: From January 2013 to September 2016, 24 patients with longitudinal injury of the distal radioulnar joint DRUJ were submitted to surgical treatment with a reconstruction procedure of the distal portion of the interosseous membrane or distal oblique band (DOB)...
March 2018: Revista Brasileira de Ortopedia
Rodrigo Fileto Gavaldão Moreira, Alexandre Yukio Nishimi, Enrico Montorsi Zanon, Thales Santos Rama, Rodrigo Pacheco Lessa Ciofi, Eiffel Tsuyoshi Dobashi
Objective: This study is aimed at determining, through a cross-sectional study, the preferred therapeutic method in Brazil considering the approach to Gartland type II and III supracondylar humerus fractures during childhood. Methods: The research project was approved by the Research Ethics Committee of Plataforma Brasil and the material was collected during the 46th Brazilian Orthopedics and Traumatology Congress. A questionnaire was developed to analyze two clinical scenarios about Gartland type II and III fractures...
March 2018: Revista Brasileira de Ortopedia
Nasim Sanati, Ovidiu D Iancu, Guanming Wu, James E Jacobs, Shannon K McWeeney
The heterogeneity in head and neck squamous cell carcinoma (HNSCC) has made reliable stratification extremely challenging. Behavioral risk factors such as smoking and alcohol consumption contribute to this heterogeneity. To help elucidate potential mechanisms of progression in HNSCC, we focused on elucidating patterns of gene interactions associated with tumor progression. We performed de-novo gene co-expression network inference utilizing 229 patient samples from The Cancer Genome Atlas (TCGA) previously annotated by Bornstein et al...
2018: Frontiers in Genetics
Jan-Erik Guelker, Christian Blockhaus, Knut Kroeger, Rosemarie Wehner, Heinrich Klues, Alexander Bufe
Background: Failure of delivering a stent or a balloon across the target lesion during percutaneous coronary intervention (PCI) of chronic total occlusion (CTO), especially in arteries with calcified tortuous anatomy, is often due to insufficient backup support from the guiding catheter. The purpose of this study was to assess the feasibility of the GuideLiner (GL) catheter use. Methods: We examined 18 patients and used the GL catheter to overcome poor support and excessive friction in standardized antegrade and retrograde CTO procedures...
April 2018: Journal of the Saudi Heart Association
Christopher J Petit, Athar M Qureshi, Andrew C Glatz, Michael S Kelleman, Courtney E McCracken, R Allen Ligon, Namrita Mozumdar, Wendy Whiteside, Asra Khan, Bryan H Goldstein
BACKGROUND: Transcatheter right ventricle decompression in neonates with pulmonary atresia and intact ventricular septum is technically challenging, with risk of cardiac perforation and death. Further, despite successful right ventricle decompression, re-intervention on the pulmonary valve is common. The association between technical factors during right ventricle decompression and the risks of complications and re-intervention are not well described. METHODS: This is a multicentre retrospective study among the participating centres of the Congenital Catheterization Research Collaborative...
June 18, 2018: Cardiology in the Young
A Mishra
BACKGROUND: Juvenile nasopharyngeal angiofibroma often attaches firmly to the adjoining bony region around the sphenopalatine foramina-sphenopalatine fossa-pterygomaxillary fissure. This can result in hourglass-shaped constriction and predispose to incomplete resection (residual disease) with a transpalatal approach. This paper describes attempts to address this 'inaccessible' area with a novel instrument, used since 2012. METHODS: Measurements of the sphenopalatine foramen, nasal septum, posterior nasopharyngeal wall and hard palate were undertaken in 20 skulls and 10 computed tomography scans (lateral extension)...
June 18, 2018: Journal of Laryngology and Otology
Jiasheng Wang, Ni Hui
A non-fouling electrochemical immunosensor is described for determination of the tumor biomarker carcinoembryonic antigen (CEA). It is based on the use of composite wires made by chemical grafting of hyaluronic acid onto polyaniline nanowires. The modified nanowires possess excellent antifouling property both in single protein solutions and in dilute serum samples. The current of immunoelectrode exhibits a linear response in the 0.01 pg mL-1 to 10,000 pg mL-1 CEA concentration range and 0.0075 pg mL-1 detection limit...
June 16, 2018: Mikrochimica Acta
Yong Cheol Lim, Yong Sam Shin, Joonho Chung
A new Low-profile Visualized Intraluminal Support device (LVIS Blue) is a braided stent that provides a higher degree of metal coverage. This stent may be beneficial for complete obliteration of an aneurysm due not only to its support of a higher occlusion rate using coils inside of the aneurysm but also to its flow diverting effect. We introduce and describe a new flow diversion technique using an LVIS Blue-within-an-Enterprise for patients with vertebral artery (VA) dissecting aneurysms. A 6-Fr guiding catheter was positioned in the ipsilateral VA...
June 14, 2018: World Neurosurgery
Cenk Yardımcı, Taylan Önyay, Kamil S İnal, Deniz B Özbakır, Ahmet Özak
OBJECTIVE:  This article presents a novel surgical technique in the management of open complete talocrural luxations and evaluates the results, and clinical benefits with its routine clinical utilization. STUDY DESIGN:  Retrospective study. ANIMALS:  Seventeen medium- or large-breed client-owned dogs of different breed, age and sex with complete talocrural luxations and radiographic follow-up of at least 24 weeks duration. METHOD:  Selective talocrural arthrodesis was performed by using a hybrid transarticular external skeletal fixator frame...
June 16, 2018: Veterinary and Comparative Orthopaedics and Traumatology: V.C.O.T
Stefan Doering, Andre Wachowiak, Hagen Roetz, Stefan Eckl, Thomas Mikolajick
Scanning spreading resistance microscopy (SSRM) with its high spatial resolution and high dynamic signal range is a powerful tool for two-dimensional characterization of semiconductor dopant areas. However, the application of the method is limited to devices in equilibrium condition, as the investigation of actively operated devices would imply potential differences within the device, whereas SSRM relies on a constant voltage difference between sample surface and probe tip. Furthermore, the standard preparation includes short circuiting of all device components, limiting applications to devices in equilibrium condition...
June 1, 2018: Ultramicroscopy
S Koob, M Kehrer, M Hettchen, T Jansen, J Schmolders, R Placzek
OBJECTIVE: Presenting the implantation of the PediatrOS™ FlexTack™ (Merete, Berlin, Germany) for growth guidance and a modified explantation procedure to facilitate explantation and prevent bone and soft tissue damage. INDICATIONS: Implantation: Genua vara and valga, coxa vara, varus and valgus deviation of the ankle joint, the elbow joint and the wrist Modified Explantation: Removal of the implant after successful limb correction or dislocation of the implant...
June 15, 2018: Operative Orthopädie und Traumatologie
Anna Hurshkainen, Anton Nikulin, Elodie Georget, Benoit Larrat, Djamel Berrahou, Ana Luisa Neves, Pierre Sabouroux, Stefan Enoch, Irina Melchakova, Pavel Belov, Stanislav Glybovski, Redha Abdeddaim
In this paper, we propose, design and test a new dual-nuclei RF-coil inspired by wire metamaterial structures. The coil operates as a result of resonant excitation of hybridized eigenmodes in multimode flat periodic structures comprising several coupled thin metal strips. It was shown that the field distribution of the coil (i.e. penetration depth) can be controlled independently at two different Larmor frequencies by selecting a proper eigenmode in each of two mutually orthogonal periodic structures. The proposed coil requires no lumped capacitors to be tuned and matched...
June 15, 2018: Scientific Reports
Stefano Cinti, Vincenzo Mazzaracchio, Gökçe Öztürk, Danila Moscone, Fabiana Arduini
The development of portable and user-friendly sensing platforms is a hot topic in the field of analytical chemistry. Among others, electroanalytical approaches exhibit a high amenability for reaching this purpose, i.e. the commercial strips for diabetes care are an obvious success. However, providing fully-integrated and user-friendly methods is the leitmotiv. In this work we evaluate the use of a disposable pipette tip, opportunely configured, to realize the first example of lab-on-a-tip. The combination of a pipette tip, wire electrodes, and cotton wool filter, highlights the suitability of producing a novel one-shot electroanalytical platform that does not require expertise-required tasks...
October 31, 2018: Analytica Chimica Acta
Firas Chakroun, Vera Colombo, Dave Lie Sam Foek, Luigi Maria Gallo, Albert Feilzer, Mutlu Özcan
PURPOSE: The objective of this study was to evaluate the anterior tooth movement without and with bonded fixed orthodontic retainers under incremental loading conditions. MATERIALS AND METHODS: Six extracted mandibular anterior human teeth were embedded in acrylic resin in True Form I Arch type and 3D reconstruction of Digital Volume Tomography (DVT) images (0.4 mm3 voxels) were obtained. The anatomy of each tooth was segmented and digitally reconstructed using 3D visualization software for medical images (AMIRA, FEI SVG)...
June 6, 2018: Journal of the Mechanical Behavior of Biomedical Materials
Tengda Zhao, Yuehua Xu, Yong He
The human brain undergoes explosive growth during the prenatal period and the first few postnatal years, establishing an early infrastructure for the later development of behaviors and cognitions. Revealing the developmental rules during the early phrase is essential in understanding the emergence of brain function and the origin of developmental disorders. The graph-theoretical network modeling in combination with multiple neuroimaging probes provides an important research framework to explore early development of the topological wiring and organizational paradigms of the brain...
June 12, 2018: NeuroImage
Nathaniel Craig, Dave Sutherland
We present a new mechanism for generating exponential hierarchies in four-dimensional field theories inspired by Anderson localization in one dimension, exploiting an analogy between the localization of electron energy eigenstates along a one-dimensional disordered wire and the localization of mass eigenstates along a local "theory space" with random mass parameters. Mass eigenstates are localized even at arbitrarily weak disorder, with exponentially suppressed couplings to sites in the theory space...
June 1, 2018: Physical Review Letters
Ingrid M Ganske, Joseph M Firriolo, Laura C Nuzzi, Oren Ganor, Thomas E Hamilton, C Jason Smithers, Russell W Jennings, Joseph Upton, Brian I Labow, Amir H Taghinia
BACKGROUND: A variety of surgical techniques exist to manage long-gap esophageal atresia (LGEA), including gastric pull-up (GPU), colonic interposition (CI), jejunal interposition (JI), and distraction lengthening. Salvage reconstruction for late failure of any conduit type is a complex surgical problem fraught with technical difficulty and significant risk. Jejunal interposition can be used as a salvage procedure in the management of LGEA. However, the opposing requirements of conduit length and adequate perfusion make the procedure technically challenging...
June 13, 2018: Annals of Plastic Surgery
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