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Brittany N Burton, Jenny Q Hu, Aria Jafari, Richard D Urman, Ian F Dunn, W Linda Bi, Adam S DeConde, Rodney A Gabriel
OBJECTIVES: Updated multi-institutional database studies assessing perioperative risk factors on 30-day morbidity and mortality after skull base surgeries are limited. We aim to identify perioperative risk factors and report the incidence of 30-day morbidity and mortality in adult patients after skull base surgery. PATIENTS AND METHODS: We queried the 2007-2016 American College of Surgeons National Surgical Quality Improvement program database to identify patients who underwent anterior, middle, or posterior skull base surgery...
June 10, 2018: Clinical Neurology and Neurosurgery
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
María Leiza Vitale, R-Marc Pelletier
The anterior pituitary regulates endocrine organs and physiological activities in the body. Environmental pollutants and drugs deleterious to the endocrine system may affect anterior pituitary activity through direct action on anterior pituitary cells. Within the gland, endocrine and folliculostellate cells are organized into and function as individual tridimensional networks, each network regulating its activity by coordinating the connected cells' responses to physiological or pathological cues. The gap junctions connecting endocrine cells and/or folliculostellate cells allow transmission of information among cells that is necessary for adequate network function...
June 12, 2018: Reproductive Toxicology
Karl S Benz, Emily Dunn, Mahir Maruf, James Facciola, John Jayman, Matthew Kasprenski, Jason E Michaud, Heather Di Carlo, John P Gearhart
PURPOSE: To use Magnetic Resonance Imaging to define the innate pelvic neurovascular course and prostate anatomy in infants with classic bladder exstrophy before their pelvis is altered by surgery. MATERIALS AND METHODS: Pelvic Magnetic Resonance Imaging was performed on male classic bladder exstrophy infants and compared to a group of age matched controls. Data collected included the prostatic dimensions as well as the course of the prostatic artery, periprostatic vessels, and pudendal neurovasculature...
June 12, 2018: Journal of Urology
Jack R Foucher, Olivier Mainberger, Julien Lamy, Mathieu D Santin, Alexandre Vignaud, Mathilde M Roser, Paulo L de Sousa
INTRODUCTION: Magnetic resonance imaging (MRI) shows slight spatial variations in brain white matter (WM). We used quantitative multi-parametric MRI to evaluate in what respect these inhomogeneities could correspond to WM subtypes with specific characteristics and spatial distribution. MATERIALS AND METHODS: Twenty-six controls (12 women, 38 ±9 Y) took part in a 60-min session on a 3T scanner measuring 7 parameters: R1 and R2, diffusion tensor imaging which allowed to measure Axial and Radial Diffusivity (AD, RD), magnetization transfer imaging which enabled to compute the Macromolecular Proton Fraction (MPF), and a susceptibility-weighted sequence which permitted to quantify R2* and magnetic susceptibility (χm)...
2018: PloS One
Henry Reyer, Michael Oster, Elizabeth Magowan, Eduard Murani, Helga Sauerwein, Dirk Dannenberger, Björn Kuhla, Siriluck Ponsuksili, Klaus Wimmers
Feed efficiency (FE) is a measure of the rate between feed intake and body weight gain and is subject to constant progress in pigs, based on extensive performance tests and analyses of physiological parameters. However, endocrine regulatory circuits which comprise the sensation and perception of intrinsic requirements and appropriate systemic responses have not yet been fully elucidated. It is hypothesized that the gut-brain-axis, which is a network of hierarchical anterior regulatory tissues, contributes largely to variations in FE...
June 15, 2018: Physiological Genomics
Juan Guillermo Sánchez-Acuña, Laura Elena Franco-Garrocho, Omar Esteban Durán-Macías, Aarón Peralta-Mata
Lipoma is a benign entity with a poor incidence in craniofacial region. The most frequent tumors in the maxillo pharyngeal space are those that occur in the major and minor salivary glands, with a higher incidence of pleomorphic adenoma, also consider a benign entity. The transmandibular approach offers a great advantage in terms of visibility during the surgery. Achieving a lower morbidity, due to the fact that anatomic structures of anterior (prestyloid) and posterior (retrostyloid) compartments are involved...
March 2018: Revista Médica del Instituto Mexicano del Seguro Social
Jan P Ulloa-Padilla, Pedro J Dávila, Natalio J Izquierdo, Omar García-Rodríguez, Ivonne Z Jiménez
OBJECTIVE: To determine what ocular symptoms and signs are most common and if there are any associations with comorbid conditions in patients with Chikungunya fever. METHODS: A retrospective data review and analysis of the ocular symptomatology of 139 patients with Chikungunya fever who visited a local emergency room from August through September 2014. Frequencies were calculated, and Pearson's chisquare test employed. All the patients were confirmed as having Chikungunya with IgM (ELISA) before admittance into the study...
June 2018: Puerto Rico Health Sciences Journal
M Guadalupe Rojas, Robert B Elliott, Juan A Morales-Ramos
Mortality caused by indirect exposure to Metarhizium brunneum and Beauveria bassiana (GHA and NI8) to the red imported fire ant, Solenopsis invicta Buren (Hymenoptera: Formicidae), workers was evaluated. Groups of 50 workers were placed in one side of dual-box arenas. The opposite side of the arenas was lined with filter paper squares previously sprayed with unformulated purified spores (106 spores/ml) suspended in 0.2% Ethal TDA 3, HLB 8 of the three fungal strains, or untreated filter paper squares as the control...
May 1, 2018: Journal of Insect Science
Isaac Josh Abecassis, Rajeev D Sen, Jason Barber, Rakshith Shetty, Cory M Kelly, Basavaraj V Ghodke, Danial K Hallam, Michael R Levitt, Louis J Kim, Laligam N Sekhar
BACKGROUND: Endovascular treatment of intracranial aneurysms is associated with higher rates of recurrence and retreatment, though contemporary rates and risk factors for basilar tip aneurysms (BTAs) are less well-described. OBJECTIVE: To characterize progression, retreatement, and retreated progression of BTAs treated with microsurgical or endovascular interventions. METHODS: We retrospectively reviewed records for 141 consecutive BTA patients...
June 14, 2018: Operative Neurosurgery (Hagerstown, Md.)
Matthew R Starr, Michael B Choi, Michael A Mahr, Pradeep Mettu, David F Patterson
Removing fish hooks is a common procedure performed by many emergency department providers. There are several techniques that are commonly employed to aid in successful removal. However, when a fish hook becomes embedded within the orbit, there are limited options as to avoid damaging vital surrounding structures. The authors report the removal of a fish hook within the anterior orbit using the string technique in a 25-year-old patient. The procedure was performed under general anesthesia with the aid of size 5 polyglactin suture wrapped around the hook...
June 13, 2018: Ophthalmic Plastic and Reconstructive Surgery
Patrick B Horrigan, Monica J Coughlan, Malcolm DeBaun, Blake Schultz, Julius A Bishop, Michael J Gardner
Use of percutaneous clamps are often helpful tools to aid reduction and intramedullary nailing of distal tibial spiral diaphyseal fractures. However, the anterior and posterior neurovascular bundles are at risk without careful clamp placement. We describe our preferred technique of percutaneous clamp reduction for distal spiral tibial fractures with a distal posterolateral fracture spike, with care to protect the adjacent neurovascular structures. We also investigated the relationship between these neurovascular structures and the site of common percutaneous clamp placement...
June 4, 2018: Journal of Orthopaedic Trauma
Kutsi Tuncer, Emine Izgi, Bahar Cankaya, Hayri Ogul, Mecit Kantarci
Osteochondroma is the most common benign bone tumor but it rarely arises from the scapula. Scapulothoracic bursitis is quite rare and osteochondroma is one of the unusual causes of this condition. Synovial chondromatosis may occur extremely uncommonly in this bursa. We reported an unusual case of scapulothoracic bursitis with synovial chondromatosis which is caused by osteochondroma. To the best of our knowledge, there is no defined chondromatosis in the scapulothoracic bursa secondary to scapular osteochondroma in the literature...
June 13, 2018: American Journal of Physical Medicine & Rehabilitation
Richard C Cook, Anthony Y Fung, Edward D Percy, John R Mayo
OBJECTIVE: Robotically assisted minimally invasive direct coronary artery bypass is an alternative to sternotomy-based surgery in properly selected patients. Identifying the left anterior descending artery when it is deep in the epicardial fat can be particularly challenging through a 5- to 6-cm mini-thoracotomy incision. The objective of this study was to evaluate a technique for predicting conversion to sternotomy or complicated left anterior descending artery anastomosis using preoperative cardiac-gated computed tomography angiograms...
June 14, 2018: Innovations: Technology and Techniques in Cardiothoracic and Vascular Surgery
Sunghoon Park, Ji-Eun Woo, Sanghyun Kim, Shin-Young Yim
Torticollis could be the only symptom and sign of craniovertebral junction (CVJ) abnormality. It could be difficult to identify CVJ abnormality as a cause of torticollis due to their rarity, especially for the subjects with torticollis caused by nontraumatic CVJ abnormalities. There has been no report to focus on nontraumatic CVJ abnormalities as a cause of torticollis. The objective of this study was to report 27 patients of torticollis caused by nontraumatic CVJ abnormalities, with the aim of helping clinicians to identify nontraumatic CVJ abnormalities as a cause of torticollis...
June 13, 2018: Journal of Craniofacial Surgery
R Levandovsky, N Belikova, A Belikov, O Godovanets, G Nakashidze
The aim of the study was to develop the most optimal variant for placing the reinforcing element of a fiberglass splint with the mobility of the anterior teeth on the basis of a parallelometric study of the diagnostic models of the jaws depending on the type of occlusion and the degree of bone resorption. For the most optimal variant of the placement of the reinforcing element of the adhesive splint with orthognathic bite and deep incisal overlap, the front slope of the model was selected with the transfer of the reinforcing element of the adhesive splint onto the lingual surface...
May 2018: Georgian Medical News
Zin Z Khaing, Lindsay N Cates, Dane M DeWees, Alexander Hannah, Pierre Mourad, Matthew Bruce, Christoph P Hofstetter
OBJECTIVE Traumatic spinal cord injury (tSCI) causes an almost complete loss of blood flow at the site of injury (primary injury) as well as significant hypoperfusion in the penumbra of the injury. Hypoperfusion in the penumbra progresses after injury to the spinal cord and is likely to be a major contributor to progressive cell death of spinal cord tissue that was initially viable (secondary injury). Neuroprotective treatment strategies seek to limit secondary injury. Clinical monitoring of the temporal and spatial patterns of blood flow within the contused spinal cord is currently not feasible...
June 15, 2018: Journal of Neurosurgery. Spine
Wo-Ran Tzeng, Shu-Wei Huang, Chih-Hsiang Fang, Lih-Tao Hsu, Chih-Yu Chen, Hsin-Hsin Shen, Jenny Zwei-Chieng Chang, Jui-Sheng Sun, Feng-Huei Lin
OBJECTIVE: With the goal to explore a new approach to treat the early degenerative lesions of hyaline cartilage, we implanted in a porcine OA model a collagen-based scaffold containing chondroprogenitor cells derived from human bone marrow mesenchymal stem cells (hBM-MSCs). EXPERIMENTAL DESIGN: Porcine knee joints were subjected to anterior cruciate ligament (ACL) transection to surgically induce OA. After 4 months, the time necessary for the development of cartilage surface damage, animals were treated either with trephination bone plug wrapped with the chondroprogenic hBM-MSCs-embedded collagen scaffold or microfractures alone...
June 15, 2018: Histology and Histopathology
Ying Zhang, Changhong Zeng, Jun Chen, Bo Guo
Objective: To evaluate the effectiveness of a new type of sutured titanium wire combined with titanium nail internal fixation in correction of serious old medial canthus deformity. Methods: Between March 2012 and June 2015, 18 patients with unilateral serious old medial canthus deformity were treated. There were 14 males and 4 females. The patient's age ranged from 23 to 62 years (mean, 42 years). The causes of deformity included accident injury in 10 cases, boxing injury in 4 cases, sharp device scratching in 3 cases, and animal bite in 1 case...
June 1, 2018: Chinese Journal of Reparative and Reconstructive Surgery
Qing Zhou, Qingquan Kong, Bo Gao
Objective: To analyze the treatment of Gartland type Ⅱ and Ⅲ supracondylar fracture of the humerus in children. Methods: Between January 2015 and January 2017, 45 cases of Gartland type Ⅱ and Ⅲ supracondylar fracture of the humerus were treated. There were 28 boys and 17 girls with an age of 1-13 years (mean, 5.7 years). The causes of injury included sports injury in 43 cases and falling from height in 2 cases. Fractures were classified as type Ⅱ in 12 cases and type Ⅲ in 33 cases according to Gartland classification...
June 1, 2018: Chinese Journal of Reparative and Reconstructive Surgery
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