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https://www.readbyqxmd.com/read/28334371/comparative-study-of-functional-nasal-reconstruction-using-structural-reinforcement
#1
Waleed H Ezzat, Sara W Liu
Importance: Nasal reconstruction after Mohs surgery is a unique challenge in that it must satisfy both functional and aesthetic goals. Despite some advocacy in the literature for using structural reinforcement to achieve both functional and aesthetic outcomes in soft-tissue reconstruction, no study has validated this claim by comparing reconstruction with and without structural support. Objective: To evaluate the effectiveness of and need for structural reinforcement when reconstructing the nasal alar and sidewall subunits...
March 23, 2017: JAMA Facial Plastic Surgery
https://www.readbyqxmd.com/read/28331886/effects-of-line-fiducial-parameters-and-beamforming-on-ultrasound-calibration
#2
Golafsoun Ameri, John S H Baxter, A Jonathan McLeod, Terry M Peters, Elvis C S Chen
Ultrasound (US)-guided interventions are often enhanced via integration with an augmented reality environment, a necessary component of which is US calibration. Calibration requires the segmentation of fiducials, i.e., a phantom, in US images. Fiducial localization error (FLE) can decrease US calibration accuracy, which fundamentally affects the total accuracy of the interventional guidance system. Here, we investigate the effects of US image reconstruction techniques as well as phantom material and geometry on US calibration...
January 2017: Journal of Medical Imaging
https://www.readbyqxmd.com/read/28328635/a-systematic-review-of-the-use-of-telemedicine-in-plastic-and-reconstructive-surgery-and-dermatology
#3
Krishna S Vyas, H Rhodes Hambrick, Afaaf Shakir, Shane D Morrison, Duy C Tran, Keon Pearson, Henry C Vasconez, Samir Mardini, Amanda A Gosman, Marek Dobke, Mark S Granick
BACKGROUND: Telemedicine, the use of information technology and telecommunication to provide healthcare at a distance, is a burgeoning field with applications throughout medicine. Given the visual nature of plastic surgery and dermatology, telemedicine has a myriad of potential applications within the field. METHODS: A comprehensive literature review of articles published on telemedicine since January 2010 was performed. Articles were selected for their relevance to plastic and reconstructive surgery and dermatology, and then reviewed for their discussion of the applications, benefits, and limitations of telemedicine in practice...
March 21, 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28326677/implantation-and-positioning-of-a-transcutaneous-magnetic-bone-conduction-hearing-system-for-children-with-microtia-in-preparation-for-auricular-reconstruction
#4
Shradha Sharma, Neil Bulstrode, Andrew Marshall
Microtia is a complex congential issue, which can have a functional and psychosocial effect on patients(1) . It can occur spontaneously or as part of a syndrome. Microtia is a condition in which otolaryngologists and plastic surgeons work closely together in order to reconstruct the ear aesthetically whilst facilitating effective aiding. This article is protected by copyright. All rights reserved.
March 22, 2017: Clinical Otolaryngology
https://www.readbyqxmd.com/read/28323397/in-vivo-response-to-decellularized-mesothelium-scaffolds
#5
Michael J Cronce, Renea A Faulknor, Irina Pomerantseva, Xiang-Hong Liu, Scott M Goldman, Emmanuel C Ekwueme, Olive Mwizerwa, Craig M Neville, Cathryn A Sundback
Biological surgical scaffolds are used in plastic and reconstructive surgery to support structural reinforcement and regeneration of soft tissue defects. Macrophage and fibroblast cell populations heavily regulate scaffold integration into host tissue following implantation. In the present study, the biological host response to a commercially available surgical scaffold (Meso BioMatrix Surgical Mesh (MBM)) was investigated for up to 9 weeks after subcutaneous implantation; this scaffold promoted superior cell migration and infiltration previously in in vitro studies relative to other commercially available scaffolds...
March 21, 2017: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/28320267/modulating-effect-of-cytokines-on-mechanisms-of-synaptic-plasticity-in-the-brain
#6
REVIEW
S G Levin, O V Godukhin
After accumulation of data showing that resident brain cells (neurons, astrocytes, and microglia) produce mediators of the immune system, such as cytokines and their receptors under normal physiological conditions, a critical need emerged for investigating the role of these mediators in cognitive processes. The major problem for understanding the functional role of cytokines in the mechanisms of synaptic plasticity, de novo neurogenesis, and learning and memory is the small number of investigated cytokines...
March 2017: Biochemistry. Biokhimii︠a︡
https://www.readbyqxmd.com/read/28320052/soft-tissue-infections-from-fish-spike-wounds-normal-commensal-bacteria-are-more-common-than-marine-pathogens
#7
Hannah Collins, Kin Mun Lee, Paul T-Y Cheng, Sarah Hulme
BACKGROUND: A fish spike injury can be sustained by anyone handling fish; during fishing, meal preparation or in retail. Case reports of fish spikes inoculating victims with virulent marine-specific pathogens and causing systemic illness led us to question whether empirical treatment of these injuries with amoxicillin and clavulanic acid is adequate. METHODS: This 2-year prospective observational study was conducted at Middlemore Hospital, Auckland, New Zealand...
March 20, 2017: ANZ Journal of Surgery
https://www.readbyqxmd.com/read/28316590/rehabilitation-using-guided-cerebral-plasticity-of-a-brachial-plexus-injury-treated-with-intercostal-and-phrenic-nerve-transfers
#8
Lars B Dahlin, Gert Andersson, Clas Backman, Hampus Svensson, Anders Björkman
Recovery after surgical reconstruction of a brachial plexus injury using nerve grafting and nerve transfer procedures is a function of peripheral nerve regeneration and cerebral reorganization. A 15-year-old boy, with traumatic avulsion of nerve roots C5-C7 and a non-rupture of C8-T1, was operated 3 weeks after the injury with nerve transfers: (a) terminal part of the accessory nerve to the suprascapular nerve, (b) the second and third intercostal nerves to the axillary nerve, and (c) the fourth to sixth intercostal nerves to the musculocutaneous nerve...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28316164/-advances-in-the-research-of-signaling-pathway-in-pathologic-scar-formation
#9
J Jin, B Ma, Z F Xia
Scar is the natural end of wound healing, but pathologic scar will form with the excessive hyperplasia. The problems which thus come not only include the physiological and psychological disorders caused by the change of appearance or dysfunction, but also include the economic burden for both families of the patients and society induced by the requirement of plastic or functional reconstruction. The formation of pathologic scars is affected by many factors involved in the process of wound healing, such as excessive inflammation, abnormal tissue repair, and lingering repair termination, which involve a lot of signaling pathways...
March 20, 2017: Zhonghua Shao Shang za Zhi, Zhonghua Shaoshang Zazhi, Chinese Journal of Burns
https://www.readbyqxmd.com/read/28301365/preserving-the-legitimacy-of-board-certification
#10
Michael S Hanemann, Holly C Wall, John A Dean
OBJECTIVES: The aims of this discussion were to inform the medical community about the American Board of Cosmetic Surgery's ongoing attempts in Louisiana to achieve equivalency to American Board of Medical Specialties (ABMS) member boards so that its diplomates may use the term "board certified" in advertising and to ensure public safety by upholding the standards for medical board certification. BACKGROUND: In 2011, Louisiana passed a truth in medical advertising law, which was intended to protect the public by prohibiting the use of the term "board certified" by improperly credentialed physicians...
March 16, 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28299333/an-alternative-treatment-strategy-for-complicated-chronic-wounds-negative-pressure-therapy-over-mesh-skin-graft
#11
Michele Maruccia, Maria G Onesti, Valentina Sorvillo, Antonio Albano, Luca A Dessy, Bruno Carlesimo, Mauro Tarallo, Marco Marcasciano, Giuseppe Giudice, Emanuele Cigna, Diego Ribuffo
Extensive skin defect represents a real problem and major challenge in plastic and reconstructive surgery. On one hand, skin grafts offer a practical method to deal with skin defects despite their unsuitability for several complicated wounds. On the other hand, negative pressure wound therapy (NPWT), applied before skin grafting, promotes granulation tissue growth. The aim of the study is to evaluate the improvement in wound healing given by the merger of these two different approaches. We treated 23 patients for large wounds of multiple factors...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28298341/life-history-evolution-in-ants-the-case-of-cardiocondyla
#12
REVIEW
Jürgen Heinze
Ants are important components of most terrestrial habitats, and a better knowledge of the diversity of their life histories is essential to understand many aspects of ecosystem functioning. The myrmicine genus Cardiocondyla shows a wide range of colony structures, reproductive behaviours, queen and male lifespans, and habitat use. Reconstructing the evolutionary pathways of individual and social phenotypic traits suggests that the ancestral life history of Cardiocondyla was characterized by the presence of multiple, short-lived queens in small-sized colonies and a male polyphenism with winged dispersers and wingless fighters, which engage in lethal combat over female sexuals within their natal nests...
March 15, 2017: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/28295975/revisiting-an-old-place-single-surgeon-experience-on-post-mastectomy-subcutaneous-implant-based-breast-reconstruction
#13
Alice Woo, Christin Harless, Steven R Jacobson
Significant advances have been made to the reconstructive tools available to plastic surgeons allowing for the re-exploration of subcutaneous breast reconstruction. The purpose of the current study is to examine the safety, efficacy, and aesthetic results of subcutaneous breast reconstruction by a single-surgeon. A retrospective chart review was performed on all patients undergoing subcutaneous implant-based breast reconstruction between April 2012 and September 2014. All implants were fully wrapped in Alloderm and placed in the subcutaneous (pre-pectoral) plane...
March 13, 2017: Breast Journal
https://www.readbyqxmd.com/read/28294563/a-new-material-for-tissue-engineered-vagina-reconstruction-acellular-porcine-vagina-matrix
#14
Jing-Kun Zhang, Run-Xuan Du, Lin Zhang, Ya-Nan Li, Ming-le Zhang, Shuo Zhao, Xiang-Hua Huang, Yan-Fang Xu
Acellular matrix materials have been widely used to repair various tissues and organs. According to the plastic principle, when a part of the body is lost, it should be replaced with a similar material. Therefore, the use of a homologous organ-specific acellular vaginal tissue in vagina reconstruction repair surgery may show good results. However, the acellular vagina matrix (AVM) form large vertebrates is difficult to isolate. In this study, we described a multi-step method to prepare porcine AVM and evaluated the efficacy of acellularization...
March 10, 2017: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/28293332/systemic-therapy-for-early-stage-breast-cancer-what-the-plastic-surgeon-should-know
#15
Chad M Teven, Daniel B Schmid, Mark Sisco, James Ward, Michael A Howard
Objective: We review the types, indications, and common regimens of systemic forms of therapy offered in early-stage breast cancer. We further detail the mechanism of action, approved uses, major toxicities, and relevance to breast reconstruction of specific agents. Methods: A review of the literature on PubMed and Cochrane databases was undertaken to define the indications and common regimens of systemic therapy in early-stage breast cancer. In addition, literature describing relevant information regarding specific systemic agents was reviewed...
2017: Eplasty
https://www.readbyqxmd.com/read/28293330/functional-latissimus-dorsi-transfer-for-upper-extremity-reconstruction-a-case-report-and-review-of-the-literature
#16
Aditya Sood, Paul J Therattil, Gerardo Russo, Edward S Lee
Objective: The latissimus dorsi flap is a workhorse for plastic surgeons, being used for many years for soft-tissue coverage of the upper extremity as well as for functional reconstruction to restore motion to the elbow and shoulder. The authors present a case of functional latissimus dorsi transfer for restoration of elbow flexion and review the literature on technique and outcomes. Methods: A literature review was performed using MEDLINE and the Cochrane Collaboration Library for primary research articles on functional latissimus dorsi flap transfer...
2017: Eplasty
https://www.readbyqxmd.com/read/28288112/reconstructing-the-genome-of-the-most-recent-common-ancestor-of-flowering-plants
#17
Florent Murat, Alix Armero, Caroline Pont, Christophe Klopp, Jérôme Salse
We describe here the reconstruction of the genome of the most recent common ancestor (MRCA) of modern monocots and eudicots, accounting for 95% of extant angiosperms, with its potential repertoire of 22,899 ancestral genes conserved in present-day crops. The MRCA provides a starting point for deciphering the reticulated evolutionary plasticity between species (rapidly versus slowly evolving lineages), subgenomes (pre- versus post-duplication blocks), genomic compartments (stable versus labile loci), genes (ancestral versus species-specific genes) and functions (gained versus lost ontologies), the key mutational forces driving the success of polyploidy in crops...
March 13, 2017: Nature Genetics
https://www.readbyqxmd.com/read/28286707/molecular-phylogenies-confirm-the-presence-of-two-cryptic-hemimycale-species-in-the-mediterranean-and-reveal-the-polyphyly-of-the-genera-crella-and-hemimycale-demospongiae-poecilosclerida
#18
Maria J Uriz, Leire Garate, Gemma Agell
BACKGROUND: Sponges are particularly prone to hiding cryptic species as their paradigmatic plasticity often favors species phenotypic convergence as a result of adaptation to similar habitat conditions. Hemimycale is a sponge genus (Family Hymedesmiidae, Order Poecilosclerida) with four formally described species, from which only Hemimycale columella has been recorded in the Atlanto-Mediterranean basin, on shallow to 80 m deep bottoms. Contrasting biological features between shallow and deep individuals of Hemimycale columella suggested larger genetic differences than those expected between sponge populations...
2017: PeerJ
https://www.readbyqxmd.com/read/28283974/do-shallow-soil-low-water-availability-or-their-combination-increase-the-competition-between-grasses-with-different-root-systems-in-karst-soil
#19
Yajie Zhao, Zhou Li, Jing Zhang, Haiyan Song, Qianhui Liang, Jianping Tao, Johannes H C Cornelissen, Jinchun Liu
Uneven soil depth and low water availability are the key limiting factors to vegetation restoration and reconstruction in limestone soils such as in vulnerable karst regions. Belowground competition will possibly increase under limited soil resources. Here, we investigate whether low resource availability (including shallow soil, low water availability, and shallow soil and low water availability combined) stimulates the competition between grasses with different root systems in karst soil, by assessing their growth response, biomass allocation, and morphological plasticity...
March 11, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28280726/developing-customized-dental-miniscrew-surgical-template-from-thermoplastic-polymer-material-using-image-superimposition-cad-system-and-3d-printing
#20
Yu-Tzu Wang, Jian-Hong Yu, Lun-Jou Lo, Pin-Hsin Hsu, CHun-Li Lin
This study integrates cone-beam computed tomography (CBCT)/laser scan image superposition, computer-aided design (CAD), and 3D printing (3DP) to develop a technology for producing customized dental (orthodontic) miniscrew surgical templates using polymer material. Maxillary bone solid models with the bone and teeth reconstructed using CBCT images and teeth and mucosa outer profile acquired using laser scanning were superimposed to allow miniscrew visual insertion planning and permit surgical template fabrication...
2017: BioMed Research International
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