Effect Of Acute Otitis Media Research Articles

Understanding Parents' Experiences and Information Needs on Pediatric Acute Otitis Media: A Qualitative Study.

Background:Acute otitis media (AOM) is the most common pediatric bacterial ear infection, affecting up to 75% of children younger than 5 years. Despite the high incidence of AOM in children, the condition presents a number of challenges to parents. The objectives of this study were to describe parents’ experiences of taking care of a child with AOM and to identify their information needs to manage their child with AOM.Methods:A qualitative, descriptive design was used to gain insight into information needs of parents’ of children with AOM. Participants were recruited from a specialized pediatric emergency department in a major Canadian urban center (Edmonton, Alberta). Individual semi structured interviews were conducted with 16 parents.Results:Seven major themes were identified and described: (1) frequency of AOM, (2) symptoms of AOM experienced by children and parents, (3) AOM symptom management strategies used by parents, (4) parent’s beliefs about AOM, (5) parent’s satisfaction with treatment prescribed by physicians, (6) the effect of AOM on family’s quality of life, and (7) parent’s information needs about AOM. Findings indicate that AOM has considerable negative outcomes for both children and families and that parents would benefit from having more evidence-based resources.Conclusions:This study provides important information around parents’ experiences and information needs for pediatric AOM. Identifying parents’ information needs and developing innovative and communicatively responsive educational approaches for parents are warranted that reflect patient-centered nursing care.

Dynamic property changes in stapedial annular ligament associated with acute otitis media in the chinchilla

Located at the end of the ossicular chain, the stapedial annular ligament (SAL) serves as a closed yet mobile boundary between the cochlear fluid and stapes footplate. It is unclear how SAL properties change with acute otitis media (AOM). This paper reports the measurements of SAL dynamic properties in chinchilla AOM model using dynamic mechanical analyzer (DMA) and frequency-temperature superposition (FTS) principle. AOM was analyzed in two infection groups: 4 days (4D) and 8 days (8D) post induction. SAL specimens were measured using DMA at three temperatures: 5, 25, and 37°C. To extend the testing frequencies to higher levels, FTS principle was employed. Then generalized Maxwell model was utilized to define the constitutive equations of the SAL. The complex shear moduli were obtained from seven samples of control, 4D, and 8D groups. Results show that the storage and loss shear moduli of SALs decreased due to AOM. The storage moduli for 4D and 8D ears were similar below 100Hz, and the loss modulus for 4D was significantly larger than 8D across the entire frequency range. This study reports data that contributes to ear biomechanics and improves understanding on the effects of AOM in middle ear tissues.

PSS40 The Effect of Acute Otitis Media in Children on Parents' Quality of Life: Development and Validation of A Questionnaire Implemented in A Prospective Observational Cohort Study in Europe

The effect of acute otitis media in children on parents' quality of life : Development and validation of a questionnaire implemented in a prospective observational cohort study in europe

Histomorphometric Estimation of Air Cell Development in Experimental Otitis Media

The objectives of this study were to examine the effect of acute otitis media on the bony development of the growing middle ear air cell system with a reliable and concise stereologic histomorphometric method and to generate a standard baseline growth plot for the middle ear of the rat. The authors conducted a histomorphometric analysis of bullar volume during the entire growth period after early induction of unilateral otitis media. The authors conducted undecalcified processing of 27 rat skulls sectioned horizontally at various ages from 20 to 83 days after unilateral transtympanic injection of Streptococcus pneumoniae at 19 days postpartum. Stereologic estimation of bullar volume was performed in the experimental and the control ear with Cavalieri's principle. Body mass and air cell volume were plotted as functions of subject age using standard developmental equations on the experimental results. Volumes of the middle ear air cell system were consistently smaller in the otitis ears. Bullar growth was completed at 60 days regardless of otitis history, but body mass was increasing throughout the experimental period. A single incident of otitis media introduced early in life is sufficient to significantly reduce the final volume of the bulla in rats. This finding may mimic the effect of otitis media contracted in early childhood on the development of the mastoid air cells. The standard growth plot provides a timeframe for studies of signaling molecules responsible for bone modeling in pneumatization.

Infrared tympanic thermometry in the evaluation of pediatric acute otitis media.

The reliability of infrared tympanic thermometry (ITT) in children and the effect of acute otitis media (AOM) on ITT are unsettled. This study assessed the effect of AOM on ITT and the utility of ITT in the diagnosis of AOM. 520 consecutive children, aged 6 months to 6 years, presenting to the ED of an urban teaching hospital were eligible for this prospective observational study. Nurses recorded oral or rectal reference temperatures (RefTs) and bilateral ITT temperatures upon presentation. Emergency physicians were blinded to the ITT temperatures. AOM was diagnosed according to published clinical criteria. Among 520 patients, 108 had unilateral AOM and 78 had bilateral AOM. In patients with unilateral AOM, the infected ears were warmer (I = 100.4 +/- 1.8 degrees F) than the uninfected ears (U = 100.3 +/- 1.8 degrees F, p = 0.035). However, the disparity in TM temperatures in infected and uninfected ears with unilateral AOM (I - U = 0.2 +/- 0.9 degrees F) was similar to the difference between right and left ears in those without AOM (R - L = 0.1 +/- 0.8 degrees F, p = 0.60). Compared with patients without AOM, patients with AOM demonstrated no significant elevation of ITT temperatures over RefTs (I - RefT = -0.8 +/- 1.2 degrees F in AOM; ITT - RefT = -0.8 +/- 1.2 degrees F in non-AOM; p = 0.94). This study had >99% power to detect a 1.0 degrees F difference for all groups compared. Infrared tympanic temperature are not helpful in diagnosing AOM in children. AOM has little direct effect on ITT temperatures.

Hearing and Hearing Loss in 5-Year-Old Children:Pure-tone Thresholds and the Effect of Acute Otitis Media

Hearing and Hearing Loss in 5-Year-Old Children:<i>Pure-tone Thresholds and the Effect of Acute Otitis Media</i>

Hearing and hearing loss in 5-year-old children. Pure-tone thresholds and the effect of acute otitis media.

Air and bone conduction pure-tone thresholds of 420 unselected urban children were measured with standard clinical audiometry. The mean of air conduction pure-tone averages (average threshold at 0.5, 1 and 2 kHz) was 8.6 dB HL in girls and 8.3 dB HL in boys. In only 5 ears (0.6%), was this average greater than or equal to 35 dB HL. The threshold greater than or equal to 35 dB HL at 4 kHz was found in 1.4% of the ears and at 8 kHz in 4.1%. The bone conduction threshold greater than 20 dB HL at any of the frequencies from 0.5 to 4 kHz was very rare, and only once, at 4 kHz, was it greater than 35 dB HL. Earlier attacks of acute otitis media seemed to have only a marginal long-term effect on air conduction hearing, and an almost negligible effect on bone conduction hearing.