Method: Wideband reflectance was measured in 66 infants (mean age = 46.0 h, SD = 21.0, range = 13.3-116.5 h) who passed a test battery that included high frequency (1000 Hz) tympanometry, acoustic stapedial reflex, transient evoked otoacoustic emissions and distortion product
otoacoustic emissions. Results: The analysis of variance (ANOVA) results showed significant variations of reflectance across the frequencies. There was no significant difference between ears and genders. The median reflectance reached a minimum of 0.21-0.24 at 1-2 kHz, but increased to 0.45-0.59 buy Tozasertib below 1 kHz and 0.24-0.52 above 2 kHz.
Conclusions: The normative reflectance data established in the present study were in agreement with, but marginally smaller than, those of previous normative studies, except for the Keefe et
al. (2000) study. While the use of a test battery approach to ensure normal middle ear function in neonates has resulted in slightly reduced reflectance across most frequencies when compared to studies that MK-2206 clinical trial have used only otoacoustic emissions, further research is needed to accurately determine the middle ear status of neonates using test performance measures. (c) 2012 Elsevier Ireland Ltd. All rights reserved.”
“Background: The mortality rate due to Acinetobacter baumannii nosocomial meningitis (ANM) is high. Objective: The aim of this study was to evaluate the factors that have influence over the outcomes in ANM patients. Methods: A retrospective analysis of 22 cases of ANM was conducted in a hospital with high incidence of multidrug resistance. Results: The mean age of patients was 43 years (21 to 91) and 54.5% were male. All ANM cases occurred within 60 days of admission and the mean duration of illness was of 18.2 days. All cases were associated with previous neurosurgical
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“Objective: The goal of this study was to examine the roles of Physician Assistants (PAs) and Nurse Practitioners (NPs) in pediatric academic otolaryngology programs to provide a better understanding of their scope of practice, levels of autonomy, clinical duties, teaching opportunities and research participation.