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https://www.readbyqxmd.com/read/29156485/-cervical-plexus-blocks
#1
Ronald Seidel
Blockades of the cervical plexus are established anesthesia procedures, not only in the context of operative carotid revascularizations. Recent investigations define inner sonoanatomic landmarks as well as the importance of brain nerves for innervation in the neck region. The present practice-oriented article discusses current study results, alternative techniques (ultrasound- versus landmark-guided) and fields of application (carotid desobliteration, surgery of the shoulder, ear and infraclavicular region)...
November 2017: Anästhesiologie, Intensivmedizin, Notfallmedizin, Schmerztherapie: AINS
https://www.readbyqxmd.com/read/29155438/circular-rnas-mediated-by-transposons-are-associated-with-transcriptomic-and-phenotypic-variation-in-maize
#2
Lu Chen, Pei Zhang, Yuan Fan, Qiong Lu, Qing Li, Jianbing Yan, Gary J Muehlbauer, Patrick S Schnable, Mingqiu Dai, Lin Li
Circular RNAs (circRNAs) are covalently closed RNA molecules. Recent studies have shown that circRNAs can arise from the transcripts of transposons. Given the prevalence of transposons in the maize genome and dramatic genomic variation driven by transposons, we hypothesize that transposons in maize may be involved in the formation of circRNAs and further modulate phenotypic variation. We performed circRNA-Seq on B73 seedling leaves and uncovered 2804 high-confidence maize circRNAs, which show distinct genomic features...
November 20, 2017: New Phytologist
https://www.readbyqxmd.com/read/29154248/the-late-results-of-4000-hz-frequency-bone-conduction-after-tympanoplasty
#3
Joanna Janiak-Kiszka, Wojciech Kaźmierczak
INTRODUCTION: Surgical treatment of conductive hearing loss runs the risk of damage to the inner ear in the mechanism of acoustic trauma. AIM: The aim of this study was to evaluate the function of the organ of Corti, expressed as bone conduction threshold at the frequency of 4000 Hz for selected operations: mastoidectomy and canal-wall-down procedure. MATERIAL AND METHODS: The material was collected from patients with chronic otitis media in the Department of Otolaryngology and ENT Oncology, Collegium Medicum of Nicolaus Copernicus University in Bydgoszcz in 2004-2009...
October 30, 2017: Otolaryngologia Polska
https://www.readbyqxmd.com/read/29154247/diagnostic-evaluation-of-neck-torsion-test-in-objective-examination-in-patients-with-vertigo-and-or-hearing-impairment
#4
Piotr Niewiadomski, Marzena Bielińska, Piotr Pietkiewicz, Jurek Olszewski
INTRODUCTION: The aim of the study was to evaluate the neck torsion test in objective examinations of patients with vertigo and/or hearing loss. MATERIAL AND METHODS: The study was conducted in 100 patients, including 54 women and 46 men aged 17-79 years, who were divided into two groups: I - 50 patients, including 30 women and 20 men aged 17-79 years (mean age 49.92 years) with dizziness and/or hearing impairments, and confirmed asymmetry of intracranial vessels, II - 50 patients - the control group, including 24 women and 26 men aged 20-71 years without dizziness and/or hearing disorders and without disturbance in the construction of intracranial vessels...
October 30, 2017: Otolaryngologia Polska
https://www.readbyqxmd.com/read/29154211/quasi-static-and-dynamic-motions-of-the-columellar-footplate-in-ostrich-struthio-camelus-measured-ex%C3%A2-vivo
#5
Pieter G G Muyshondt, Raf Claes, Peter Aerts, Joris J J Dirckx
The nature of the movement of the columellar footplate (CFP) in birds is still a matter of ongoing debate. Some sources claim that rocking motion is dominant, while others propose a largely piston-like motion. In this study, motions of the CFP are experimentally investigated in the ostrich using a post-mortem approach. For quasi-static loads, micro-CT scans of ostrich heads were made under positive and negative middle-ear pressures of 1 kPa. For dynamic loads, laser Doppler vibrometry was used to measure the velocity on multiple locations of the CFP as a function of excitation frequency from 0...
November 9, 2017: Hearing Research
https://www.readbyqxmd.com/read/29154070/complementary-and-alternative-therapies-in-dentistry-and-characteristics-of-dentists-who-recommend-them
#6
Beatrice Baatsch, Stefan Zimmer, Daniela Rodrigues Recchia, Arndt Büssing
OBJECTIVES: The aims of this study were to analyse whether dentists offer or recommend complementary and alternative medicine (CAM) remedies in their clinical routine, and how effective these are rated by proponents and opponents. A second aim of this study was to give a profile of the dentists endorsing CAM. DESIGN: A prospective, explorative, anonymised cross-sectional survey was spread among practicing dentists in Germany via congresses, dental periodicals and online (n=250, 55% male, 45% female; mean age 49...
December 2017: Complementary Therapies in Medicine
https://www.readbyqxmd.com/read/29154058/herbal-medicines-for-treating-acute-otitis-media-a-systematic-review-of-randomised-controlled-trials
#7
REVIEW
Mi Ju Son, Young-Eun Kim, Young Il Song, Yun Hee Kim
INTRODUCTION: This systematic review aimed to assess the clinical evidence for the widespread use of herbal medicines in treating acute otitis media. METHODS: Eleven electronic databases, including MEDLINE, EMBASE, and the CENTRAL were searched, without language limitations. All randomised controlled trials involving the use of herbal medicines, alone or in combination with conventional therapies, for acute otitis media were included. RESULTS: We identified 4956 studies, of which seven randomised clinical trials met the inclusion criteria...
December 2017: Complementary Therapies in Medicine
https://www.readbyqxmd.com/read/29153327/auditory-sensitivity-and-decision-criteria-oscillate-at-different-frequencies-separately-for-the-two-ears
#8
Hao Tam Ho, Johahn Leung, David C Burr, David Alais, Maria Concetta Morrone
Many behavioral measures of visual perception fluctuate continually in a rhythmic manner, reflecting the influence of endogenous brain oscillations, particularly theta (∼4-7 Hz) and alpha (∼8-12 Hz) rhythms [1-3]. However, it is unclear whether these oscillations are unique to vision or whether auditory performance also oscillates [4, 5]. Several studies report no oscillatory modulation in audition [6, 7], while those with positive findings suffer from confounds relating to neural entrainment [8-10]. Here, we used a bilateral pitch-identification task to investigate rhythmic fluctuations in auditory performance separately for the two ears and applied signal detection theory (SDT) to test for oscillations of both sensitivity and criterion (changes in decision boundary) [11, 12]...
November 10, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/29153194/cosmetic-and-reconstructive-surgery-of-congenital-ear-deformities
#9
EDITORIAL
Scott Stephan
No abstract text is available yet for this article.
February 2018: Facial Plastic Surgery Clinics of North America
https://www.readbyqxmd.com/read/29153192/surgical-otoplasty-an-evidence-based-approach-to-prominent-ears-correction
#10
REVIEW
Kenneth J Stewart, Luca Lancerotto
Otoplasty is one of the first procedures learned during residency. A myriad of surgical techniques and nuances exist. Many have merit, some are ineffective, some destructive, and some frankly fanciful. Adopting an effective and safe technique should be based on proven efficacy and effectiveness to avoid early disappointments. We present a review of traditional otoplasty techniques and more recent innovations. Their pros and cons are discussed in view of the relative risks/benefits balance. Recurrence rates are low for most techniques...
February 2018: Facial Plastic Surgery Clinics of North America
https://www.readbyqxmd.com/read/29153191/atresiaplasty-in-congenital-aural-atresia-what-the-facial-plastic-surgeon-needs-to-know
#11
REVIEW
Douglas S Ruhl, Bradley W Kesser
Patients with microtia and congenital aural atresia should have a comprehensive hearing assessment early in life. Options for hearing habilitation should be presented, and children with bilateral aural atresia should be fitted with a bone conducting hearing device to support normal speech and language development. If atresia surgery is pursued, the microtia surgeon must be aware of certain principles. This article presents recommendations on options for potentially improving hearing in children with congenital aural atresia: assessing surgical candidacy; chronology and timing of surgeries; functional importance of certain ear structures; and understanding the possible locations of an aberrant facial nerve to avoid injury in these patients...
February 2018: Facial Plastic Surgery Clinics of North America
https://www.readbyqxmd.com/read/29153190/auricular-reconstruction-using-porous-polyethylene-implant-technique
#12
REVIEW
Scott Stephan, John Reinisch
Alloplast-based ear reconstruction has become more popular over the years because it offers many advantages compared with the traditional staged autologous costal cartilage approach. Advantages include earlier reconstruction in the setting of microtia, fewer procedures, less donor site morbidity, shorter surgeon learning curve, and improved consistency in the final aesthetic result. Although other implantable materials have been used in auricular reconstruction with variable success, porous high-density polyethylene frameworks combined with recent advances in the creation of the soft tissue coverage have significantly improved outcomes with minimal complications and long-term viability...
February 2018: Facial Plastic Surgery Clinics of North America
https://www.readbyqxmd.com/read/29153189/pediatric-microtia-reconstruction-with-autologous-rib-personal-experience-and-technique-with-1000-pediatric-patients-with-microtia
#13
REVIEW
Arturo Bonilla
Reconstruction of the microtic ear is one of the most challenging, yet gratifying surgical experiences. Careful planning, attention to detail, and conservative tissue management are necessary for excellent results. Technologies continue to evolve; with the advancement of cartilage tissue engineering, the future of ear reconstruction is very promising.
February 2018: Facial Plastic Surgery Clinics of North America
https://www.readbyqxmd.com/read/29153187/otoplasty-for-congenital-auricular-malformations
#14
REVIEW
Jiahui Lin, Anthony P Sclafani
Among the less common congenital auricular anomalies are cryptotia, Stahl ear, constricted ear, and macrotia. The vast majority of these occur spontaneously without accompanying syndromes or other deformities. This article provides a comprehensive overview of these anomalies, as well as common techniques to correct these anomalies.
February 2018: Facial Plastic Surgery Clinics of North America
https://www.readbyqxmd.com/read/29153186/cosmetic-otoplasty
#15
REVIEW
Alexander L Schneider, Douglas M Sidle
Otoplasty for prominent ears is a rewarding yet exacting surgery that demands the precise application of anatomic knowledge, anthropometric norms, and surgical creativity. The practitioner must be able to use a variety of different techniques to provide durable and acceptable cosmetic results to patients. This article provides an in-depth description of normal and abnormal auricular anatomy, the historical context for modern otoplasty, and describes in detail the common otoplastic procedures currently performed...
February 2018: Facial Plastic Surgery Clinics of North America
https://www.readbyqxmd.com/read/29153185/nonsurgical-management-of-congenital-auricular-anomalies
#16
REVIEW
Christen Lennon, Sivakumar Chinnadurai
Congenital auricular deformities often can be corrected by neonatal ear molding techniques, which have evolved significantly over a 25-year period with commercially available molding systems now available. Indications for molding and methodology for best optimizing results have been well described in the literature, although recent studies have explored methodology for reduction in the cost of technique and also called for increased awareness among pediatric practitioners of the importance of early institution of therapy...
February 2018: Facial Plastic Surgery Clinics of North America
https://www.readbyqxmd.com/read/29153166/a-100-year-review-practical-female-reproductive-management
#17
J S Stevenson, J H Britt
Basic knowledge of mechanisms controlling reproductive processes in mammals was limited in the early 20th century. Discoveries of physiologic processes and mechanisms made early in the last century laid the foundation to develop technologies and programs used today to manage and control reproduction in dairy cattle. Beyond advances made in understanding of gonadotropic support and control of ovarian and uterine functions in basic reproductive biology, advancements made in artificial insemination (AI) and genetics facilitated rapid genetic progress of economically important traits in dairy cattle...
December 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/29153038/a-divergent-pseudoglandular-configuration-of-cutaneous-plasmacytoma-in-dogs
#18
Brittany McHale, Uriel Blas-Machado, Fabiano N Oliveira, Daniel R Rissi
Cutaneous and mucocutaneous plasmacytoma (PCT) is a common neoplasm of dogs. Tumors can be single or multiple and occur predominantly in the oral cavity, lip, ears, digits, and trunk. Although these tumors typically offer no diagnostic challenge for the pathologist, subsets of PCTs with atypical morphologic configurations may make differentiation from other neoplasms difficult. We describe 6 cases of canine cutaneous and mucocutaneous PCT with pseudoglandular arrangement of neoplastic cells. The mean age of affected dogs was 11...
November 1, 2017: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/29152945/dna-methylation-of-the-prestin-gene-and-outer-hair-cell-electromotileresponse-of-the-cochlea-in-salicylate-administration
#19
(no author information available yet)
Background/aim: Activity of the prestin gene may have a role in the pathogenesis of salicylate-induced ototoxicity. We investigated DNA methylation for prestin gene exon 1 in salicylate-injected guinea pigs.Materials and methods: Fifteen guinea pigs (30 ears) underwent audiological evaluation including 1000 Hz probe-tone tympanometry and a distortion product otoacoustic emission (DPOAE) test. The animals were randomly divided into three groups. Groups 2 (8 ears) and 3 (14 ears) were injected with intramuscular saline and sodium salicylate (200 mg/kg), respectively twice daily for 2 weeks...
November 13, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/29152430/a-dosimetric-comparison-of-intensity-modulated-proton-therapy-volumetric-modulated-arc-therapy-and-4%C3%AF-non-coplanar-intensity-modulated-radiation-therapy-for-a-patient-with-parameningeal-rhabdomyosarcoma
#20
Tiffany W Chen, Julian Sison, Becky Lee, Arthur J Olch, Andrew Chang, Annelise Giebeler, Kenneth Wong
Rhabdomyosarcoma (RMS) is the most common soft tissue sarcoma in children and manifests as two major histological subtypes: embryonal and alveolar. The five-year local failure rate for RMS at parameningeal sites (middle ear, mastoid region, nasal cavity, etc.) is around 17% despite multiple Intergroup Rhabdomyosarcoma Study Group (IRS) trials conducted to determine the optimal radiation treatment regimen. This case report explores the use of intensity-modulated proton therapy (IMPT) for a 10-year-old child who presented with left eye irritation, facial pain, and headaches and was found to have an alveolar parameningeal rhabdomyosarcoma...
September 10, 2017: Curēus
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