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https://www.readbyqxmd.com/read/28346654/glomus-jugulare-manifesting-as-angiogenesis-of-the-external-ear-canal
#1
Sei Y Chung, James K Liu, Richard Chan Park, Robert W Jyung
No abstract text is available yet for this article.
March 2017: Ear, Nose, & Throat Journal
https://www.readbyqxmd.com/read/28346293/comparison-of-experts-and-residents-performing-a-complex-procedure-in-a-temporal-bone-surgery-simulator
#2
Ioanna Ioannou, Yun Zhou, Sudanthi Wijewickrema, Patorn Piromchai, Bridget Copson, Gregor Kennedy, Stephen O'Leary
OBJECTIVE: To investigate the use of automated metrics from a virtual reality (VR) temporal bone surgery simulator to determine how the performance of experts and trainees differs when performing a complex otological procedure (mastoidectomy with posterior tympanotomy and cochleostomy). STUDY DESIGN: Cohort study. METHODS: Using the University of Melbourne VR temporal bone surgery simulator, seven ENT consultants and seven ENT residents performed two trials of the surgical approach to cochlear implantation on a virtual temporal bone...
March 24, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28346292/bilateral-labyrinthine-and-internal-auditory-canal-enhancement-in-an-infant-with-severe-labyrinthine-dysplasia-a-previously-unreported-phenomenon
#3
Charles L Anzalone, Mai Lan Ho, Neil S Patel, Lisa A Schimmenti, Melissa D DeJong, Matthew L Carlson
OBJECTIVE: To describe a novel case of congenital profound bilateral sensorineural hearing loss in a patient with bilateral nodular internal auditory canal and labyrinthine enhancement and temporal bone dysplasia. PATIENTS: A 76-day-old female was referred to the authors' center for evaluation of congenital deafness. Behavioral observations and objective audiometric evaluation demonstrated bilateral profound sensorineural hearing loss and a comprehensive multidisciplinary evaluation identified compound heterozygous pathogenic variants in MYO7A, a gene associated with Usher Syndrome Type 1B or DFNB2...
March 24, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28346290/endoscopic-ear-surgery-for-external-auditory-canal-cholesteatoma
#4
Jörg Dähn, Lukas Anschuetz, Masaya Konishi, Mark Sayles, Marco Caversaccio, Patrick Dubach
BACKGROUND: Treatment of external auditory canal cholesteatoma (EACC) has been a question of debate. To our knowledge and according to a systematic review of endoscopic ear surgery (EES) in 2015, this study describes for the first time the technique and outcome by solely transcanal EES for EACC. STUDY METHOD: Retrospective case series, level of evidence IV. METHODS: Between October 2014 and December 2016, nine patients with unilateral EACC have been treated by EES...
March 24, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28345758/biodegradable-gelatin-beta-tricalcium-phosphate-sponges-incorporating-recombinant-human-fibroblast-growth-factor-2-for-treatment-of-recession-type-defects-a-split-mouth-study-in-dogs
#5
A Shujaa Addin, T Akizuki, S Hoshi, T Matsuura, T Ikawa, S Fukuba, M Matsui, Y Tabata, Y Izumi
BACKGROUND AND OBJECTIVE: Tissue engineering by using recombinant human (rh) growth factor technology may offer a promising therapeutic approach for treatment of gingival recession. Fibroblast growth factor-2 (FGF-2) has shown the ability to promote periodontal regeneration. Gelatin/beta-tricalcium phosphate (gelatin/β-TCP) sponges have been developed to control the release of growth factors. The present study evaluated the periodontal regenerative efficacy of rhFGF-2 by comparing gelatin/β-TCP sponges incorporated with rhFGF-2 to the scaffolds alone in artificially created recession-type defects in dogs...
March 27, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/28345519/anatomical-landmarks-for-maxillary-nerve-block-in-the-pterygopalatine-fossa-a-radiological-study
#6
S Carrier, B Castagneyrol, L Beylacq, K Nouette-Gaulain, M Montaudon, M Laurentjoye
INTRODUCTION: The aim of this study was to describe the anatomical landmarks for maxillary nerve block in the pterygopalatine fossa. The risk of injury to the skull base and maxillary artery was assessed. METHODS: This retrospective study was based on the analysis of 61 consecutive computed tomography angiographies obtained from patients suffering from different pathologies. Anatomical relationships between optic canal (OC), foramen rotundum (FR), inferior orbital fissure (IOF) and puncture point (PP) were assessed...
February 22, 2017: J Stomatol Oral Maxillofac Surg
https://www.readbyqxmd.com/read/28345247/functional-morphological-adaptations-of-the-bony-labyrinth-in-marsupials-mammalia-theria
#7
Cathrin Pfaff, Stefan Czerny, Doris Nagel, Jürgen Kriwet
Diprotodontia represents the largest and ecologically most distinct order of marsupials occurring in Australasian being highly divers in size, locomotion, habitat preferences, feeding, and activity pattern. The spatial orientation in the habitat and therefore the three-dimensional space is detected by the vestibular system of the inner ear, more precisely by the three semicircular canals. In this study, we investigated the bony labyrinth of diprotodontian and selected non-diprotodontian marsupial mammals of almost all genera with noninvasive micro-CT scanning and 3D-reconstructions...
March 27, 2017: Journal of Morphology
https://www.readbyqxmd.com/read/28344797/poor-reproducibility-of-breath-hydrogen-testing-implications-for-its-application-in-functional-bowel-disorders
#8
Chu K Yao, Caroline J Tuck, Jacqueline S Barrett, Kim Ek Canale, Hamish L Philpott, Peter R Gibson
BACKGROUND: Limited data are available regarding the reproducibility of lactulose and fructose breath testing for clinical application in functional bowel disorders. OBJECTIVES: The purpose of this study was to investigate the reproducibility of lactulose and fructose breath hydrogen testing and assess symptom response to fructose testing. METHODS: Results were analysed from 21 patients with functional bowel disorder with lactulose breath tests and 30 with fructose breath tests who completed another test >2 weeks later...
March 2017: United European Gastroenterology Journal
https://www.readbyqxmd.com/read/28344413/evaluation-of-some-heavy-metals-residues-in-batteries-and-deep-litter-rearing-systems-in-japanese-quail-meat-and-offal-in-egypt
#9
Ali M Ahmed, Dalia M Hamed, Nagwa T Elsharawy
AIM: The main objectives of this study were for comparing the effect of batteries and deep litter rearing systems of domesticated Japanese quail, Coturnix coturnix japonica, on the concentration levels of cadmium, copper, lead, and zinc from the quail meat and offal in Ismailia, Egypt. MATERIALS AND METHODS: A total of 40 quail meat and their offal samples were randomly collected from two main quail rearing systems: Battery (Group I) and deep litter system (Group II) for determination of concentration levels of cadmium, copper, lead, and zinc...
February 2017: Veterinary World
https://www.readbyqxmd.com/read/28344077/erythematous-plaques-on-the-auditory-canal
#10
G Serarslan, C Arlı, E Atik
No abstract text is available yet for this article.
March 23, 2017: European Annals of Otorhinolaryngology, Head and Neck Diseases
https://www.readbyqxmd.com/read/28343932/fracture-incidence-of-waveone-and-reciproc-files-during-root-canal-preparation-of-up-to-3-posterior-teeth-a-prospective-clinical-study
#11
Clóvis Stephano Pereira Bueno, Daniel Pinto de Oliveira, Rina Andrea Pelegrine, Carlos Eduardo Fontana, Daniel Guimarães Pedro Rocha, Carlos Eduardo da Silveira Bueno
INTRODUCTION: Reciprocating instruments were developed to improve and simplify the preparation of the root canal system by allowing greater centralization of the canal and requiring a shorter learning curve. Despite the risk of instrument separation, using a reciprocating instrument in more than 1 case is a relatively common clinical practice. The aim of this study was to evaluate the fracture resistance of Reciproc (R25; VDW, Munich, Germany) and WaveOne (Primary; Dentsply Maillefer, Ballaigues, Switzerland) instruments according to the number of uses during the preparation of root canals in up to 3 posterior teeth...
March 23, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28343931/coronal-and-intraradicular-appearances-affect-radiographic-perception-of-the-periapical-region
#12
Julie W Strong, Karl F Woodmansey, John A Khademi, John F Hatton
INTRODUCTION: The influence of the radiographic appearances of the coronal and intraradicular areas on periapical radiographic interpretation has been minimally evaluated in dentistry and endodontics. The purpose of this study was to evaluate the effects that the coronal and intraradicular radiographic appearance has on endodontists' radiographic interpretations of periapical areas. METHODS: In a split-group study design using an online survey format, 2 pairs of digital periapical radiographic images were evaluated by 2 groups (A and B) of endodontist readers for the presence of a periapical finding...
March 23, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28343927/palatal-radicular-groove-morphology-of-the-maxillary-incisors-a-case-series-report
#13
Xuelian Tan, Lan Zhang, Wei Zhou, Yan Li, Jiali Ning, Xi Chen, Dongzhe Song, Xuedong Zhou, Dingming Huang
INTRODUCTION: Teeth with a palatal radicular groove are challenging to diagnose, treat, and save. We classified this condition using cone-beam computed tomographic (CBCT) cross-sectional configurations combined with radiographic and morphologic observations during an intentional replantation procedure to identify and analyze the characteristics of palatal radicular grooves comprehensively as a reference for diagnosis, treatment planning, and prognosis evaluation of this condition. METHODS: Eight cases with palatal radicular grooves present in permanent maxillary incisors were investigated by radiography and CBCT imaging before intentional replantation...
March 23, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28343677/influence-of-adhesive-cementation-systems-on-the-bond-strength-of-relined-fiber-posts-to-root-dentin
#14
Raquel Viana Rodrigues, Camila Sobral Sampaio, Rafael Rocha Pacheco, Fernanda Miori Pascon, Regina Maria Puppin-Rontani, Marcelo Giannini
STATEMENT OF PROBLEM: Glass fiber post cementation procedures have undergone significant development. Relining the post with composite resin is a technique that aims to reduce resin cement thickness and consequently problems inherent to polymerization. Evidence is sparse regarding the efficacy of bonding procedures at increasing depths (from cervical to apical) using different adhesive cementation techniques. PURPOSE: The purpose of this in vitro study was to evaluate the push-out bond strength (PBS) of composite resin relined glass fiber posts cemented to bovine root dentin using different adhesive cementation protocols...
March 23, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28342818/intraneural-microcystic-lymphatic-malformation-of-the-ulnar-nerve-at-the-guyon-canal-unusual-cause-of-ulnar-pain-in-a-child
#15
I González Pérez, F Corella Montoya, I Casado Fariñas
We present a case of an unusual cause of ulnar pain on a 9 years old patient. The patient had pain on the ulnar side of the wrist after a fall. MRI showed a poorly defined lesion on the ulnar nerve at Guyońs canal. The initial diagnosis was traumatic neuropathy. Following conservative treatment of symptoms for one year, the pain started again. Therefore, a new MRI was performed were progression of the lesion was observed. Excision of the lesion was performed and the specimen sent for pathologic analysis. The diagnosis was of microcystic lymphatic malformation...
March 22, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28342638/-rationale-and-complications-of-the-anterior-lateral-extrapleural-retroperitoneal-approach-for-unstable-thoracolumbar-fractures-experience-in-86-consecutive-patients
#16
Pedro David Delgado-López, Antonio Rodríguez-Salazar, Vicente Martín-Velasco, Javier Martín-Alonso, José Manuel Castilla-Díez, Ana Galacho-Harriero, Elena Araús-Galdós
OBJECTIVES: To describe the rationale, pros and cons, and complications of the anterior-lateral extrapleural retroperitoneal approach for unstable (TLICS>4) thoracolumbar fractures. PATIENTS AND METHODS: Clinical and radiological data and outcomes from a cohort treated surgically via said approach were retrospectively reviewed. All patients were operated on exclusively by 5 neurosurgeons trained in spine surgery. RESULTS: Between June 1999 and December 2015, 86 patients underwent surgery (median age 42years, most common level: L1)...
March 22, 2017: Neurocirugía
https://www.readbyqxmd.com/read/28342477/effect-of-different-irrigation-systems-on-sealer-penetration-into-dentinal-tubules
#17
Luigi Generali, Francesco Cavani, Valentina Serena, Corinne Pettenati, Elena Righi, Carlo Bertoldi
INTRODUCTION: Different irrigation systems have been developed to improve the efficacy and distribution of the irrigants. The aim of this study was to compare the effect of conventional endodontic needle irrigation with other irrigant delivery and/or agitation systems on sealer penetration into dentinal tubules. METHODS: Fifty single-rooted teeth with round-shaped root canals were distributed in 5 homogeneous groups characterized by the different cleansing system used: conventional endodontic needle irrigation, EndoActivator, Irrisafe, Self-Adjusting File, and EndoVac...
April 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28342218/histological-assessment-of-regenerative-endodontic-treatment-in-animal-studies-with-different-scaffolds-a-systematic-review
#18
Milad Altaii, Lindsay Richards, Giampiero Rossi-Fedele
BACKGROUND/AIM: The concept of regenerative endodontic procedures remains controversial. The aim of this study was to evaluate the histology of the tissues formed in immature animal teeth with necrotic and infected pulps after attempted endodontic regeneration procedures using different scaffolds. DESIGN: A systematic electronic literature search was performed in PubMed, Web of Science, Scopus, EMBASE, DOSS and Cochrane Library databases. The terms used were a combination of the following: 'immature permanent necrotic tooth or teeth' or 'open apex or apices' and 'regeneration or revitalization or revascularization' and 'histology'...
March 24, 2017: Dental Traumatology: Official Publication of International Association for Dental Traumatology
https://www.readbyqxmd.com/read/28341579/beware-the-looping-vas-deferens-in-orchidopexy
#19
Thomas P Cundy, Day Way Goh
A looping vas deferens may be present in up to 20% of undescended testes located within or proximal to the inguinal canal. This associated abnormality is vulnerable to transection during orchidopexy. We present an example of a very long looping vas to emphasize the importance of inspection for this anomaly, and demonstrate the extreme extent that a looping vas may extend. Identification of the vas amongst cord structures may provide false reassurance of normal ductal anatomy. Examination for a looping vas by inspecting structures caudal to the testis should occur at an early opportunity during orchidopexy to avoid inadvertent transection...
March 21, 2017: Urology
https://www.readbyqxmd.com/read/28341566/vibration-induced-nystagmus-in-patients-with-vestibular-schwannoma-characteristics-and-clinical-implications
#20
Jeon Mi Lee, Mi Joo Kim, Jin Won Kim, Dae Bo Shim, Jinna Kim, Sung Huhn Kim
OBJECTIVE: To investigate the clinical significance of vibration-induced nystagmus (VIN) in unilateral vestibular asymmetry and vestibular schwannoma. METHODS: Thirteen patients with vestibular schwannoma underwent the VIN test, in which stimulation was applied to the mastoid processes and sternocleidomastoid (SCM) muscles on the ipsilateral and contralateral sides of lesions. Preoperative VIN was measured, and changes in VIN were followed up for 6months after tumor removal...
March 6, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
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