نتایج جستجو برای: middle ear stiffness

تعداد نتایج: 228441  

2016
Justin J. O’Hagan Cristina Carias Jessica M. Rudd Huong T. Pham Yonat Haber Nicki Pesik Martin S. Cetron Manoj Gambhir Susan I. Gerber David L. Swerdlow

Using data from travelers to 4 countries in the Middle East, we estimated 3,250 (95% CI 1,300-6,600) severe cases of Middle East respiratory syndrome occurred in this region during September 2012-January 2016. This number is 2.3-fold higher than the number of laboratory-confirmed cases recorded in these countries.

Journal: :The Journal of Experimental Medicine 2003
John B. Nelson John W. Gowen

A special colony of albino rats was built up by selection and isolation from a population in which middle ear disease was highly prevalent. No cases of aural infection occurred in the selected group, whereas its precursor showed a crude incidence of 57 per cent. The subjection of selected rats to a rachitic diet and to overcrowding did not predispose to the development of middle ear disease. Th...

2012
Mary Hoffmann

This critical review examines whether multifrequency tympanometry is more effective than standard tympanometry for detecting otosclerosis in adults with middle ear disorders. Study designs included: one Non-randomized Clinical Trial(between and within groups), four Non-randomized Clinical TrialMixed (between). Overall, the evidence indicates that multifrequency tympanometry provides a more effi...

2014
S.C. PRASAD C. LA MELIA M. MEDINA V. VINCENTI A. BACCIU S. BACCIU E. PASANISI

In this paper, we report the postoperative outcomes in canal wall up procedures with second stage surgery in 40 children undergoing intervention for cholesteatoma of the middle ear. The residuals, recurrences and the hearing results were analysed. All 40 patients had a follow-up of at least five years. Of the 39 patients who underwent two staged surgery, 18 (46.1%) had a residual lesion that wa...

Journal: :Proceedings of the Royal Society of Medicine 1972

Journal: :Romanian journal of morphology and embryology = Revue roumaine de morphologie et embryologie 2006
Nicoleta Măru Fl Pop

The aim of this study is to present various morphologic aspects of the middle ear cholesteatoma, concerning both container (tympanic cavity) and content (cholesteatoma). There are two different aspects of the study: a mezoscopic study of the tympanic walls and the elements within the middle ear (ossicular chain, folds, ligaments, middle ear clefts) in order to evidentiate the critical areas (si...

Journal: :Ear and hearing 1997
N Shahnaz L Polka

OBJECTIVES The primary goal of this study was to evaluate alternative tympanometric parameters for distinguishing normal middle ears from ears with otosclerosis. A secondary goal was to provide guidelines and normative data for interpreting multifrequency tympanometry obtained using the Virtual 310 immittance system. DESIGN Nine tympanometric measures were examined in 68 normal ears and 14 ea...

2007
Sylva Bartel-Friedrich Cornelia Wulke

In the ENT region 50% of the malformations affect the ear. Malformations of the outer and middle ear are predominantly unilateral (ca. 70-90%) and mostly involve the right ear. Inner ear malformations can be unilateral or bilateral. The incidence of ear malformations is approximately 1 in 3800 newborns. Ear malformations may be genetic (associated with syndromes or not, with family history, spo...

Journal: :Pathogens and disease 2015
Kyle A Murrah Roberta L Turner Bing Pang Antonia C Perez Jennifer L Reimche Lauren B King John Wren Uma Gandhi W Edward Swords David A Ornelles

Adenoviral infection is a major risk factor for otitis media. We hypothesized that adenovirus promotes bacterial ascension into the middle ear through the disruption of normal function in the Eustachian tubes due to inflammation-induced changes. An intranasal infection model of the chinchilla was used to test the ability of type 5 adenovirus to promote middle ear infection by Streptococcus pneu...

Journal: :Anatomical record 2014
Michelle Christine Nielsen Tomas Martin Bertelsen Morten Friis Ole Winther Lennart Friis-Hansen Per Cayé-Thomasen Mads Sølvsten Sørensen

Common middle ear diseases may affect bone behavior in the middle ear air cell system. To understand this pathologic pneumatization, the normal development of bone in the middle ear should be investigated. The objective of this study was to analyze gene expression of bone-related signaling factors and gene sets in the developing middle ear. Microarray technology was used to identify bone-relate...

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