Early Otitis Media Research Articles

Protective Characteristics of Human Breast Milk on Early Childhood Otitis Media: A Narrative Review.

Introduction: Human breast milk (HBM) contains a complex and dynamically changing variety of factors that contribute to the infant's developing immune system's ability to fight upper respiratory tract infections, including otitis media (OM). We sought to summarize the current evidence on the protective characteristics of HBM, through direct or donated feeding, toward early childhood OM. Methods: For this narrative review, we performed a literature search on OM in the context of HBM feeding in the PubMed, Embase, and Google Scholar databases, between January 1, 2008, and July 1, 2023. Results: Immunoglobulin A (IgA) provides a short-term immunity of 2-3 days against otopathogens causing OM. IgA-mediated immunity is effective against OM up to 7 months of age if breastfeeding continues. The role of transferred IgM and IgG in HBM is unclear. Although there is a potential protective value of microRNA, hormones, oligosaccharides, stem cells, and interleukins present in HBM, their role is unclear. Any duration of breastfeeding is superior to no breastfeeding in OM risk reduction, with a big variability among studies (odds ratio 0.23-0.81, depending on the duration). Duration of breastfeeding ≥6 months was found to be the most effective in OM risk reduction, but there was no evidence of continued benefits after 2 years of age. Expressed breastfeeding was not shown to be more beneficial. The protective values of donor HBM against OM are still undetermined. Conclusion: HBM has numerous components that contribute to protection against early childhood OM.

Early otitis media puts children at risk for later auditory and language deficits

BackgroundOtitis media is a common disorder of early childhood suspected of hindering auditory and language development, but evidence regarding these effects has been contradictory. To examine potential sources of these contradictory past results and explore in more detail the effects of early otitis media on auditory and language development, three specific hypotheses were tested: (1) Variability in children's general attention could influence results, especially for measures of auditory functioning, leading to spurious findings of group differences; (2) Different language skills may be differentially affected, evoking different effects across studies depending on skills assessed; and (3) Different mechanisms might account for the effects of otitis media on acquisition of different language skills, a finding that would affect treatment choices. MethodChildren 5–10 years old participated: 49 with and 68 without significant histories of otitis media. The auditory function examined was temporal modulation detection, using games designed to maintain children's attention; two additional measures assessed that attention. Measures of lexical knowledge and phonological sensitivity served as the language measures. ResultsSustained attention was demonstrated equally across groups of children with and without histories of otitis media. Children with histories of otitis media performed more poorly than peers without those histories on the auditory measure and on both sets of language measures, but effects were stronger for phonological sensitivity than lexical knowledge. Deficits in temporal modulation detection accounted for variability in phonological sensitivity, but not in lexical knowledge. ConclusionWhen experimental factors are tightly controlled, evidence emerges showing effects of otitis media early in life on both auditory and language development. Mechanism of effects on language acquisition appear to involve both delayed auditory development and diminished access to the ambient language.

Prevalence of self-reported middle ear disease, hearing loss and vertigo in two adult population-based cohorts over a 20-year period in Greenland

ABSTRACT To estimate the frequencies of self-reported middle ear and hearing complaints and vertigo/dizziness in adult Greenlanders. Furthermore, to examine if there has been a development in the frequency of these complaints within a 20-year period. A structured questionnaire concerning middle ear disease and related neuro-otological symptoms was mailed to 400 randomly selected adult Greenlanders between 18 and 60 years of age in 1995. In 2014, the questions were included for the same age group in the general Greenlandic Health Survey. The questionnaires contained a total of six identical questions. In 1995, 281 participants (70%) replied to the questionnaire. In 2014, 1,639 participants (78%) replied. We found that in 1995 the two youngest age groups (18–29- and 30–39-year-olds) had the highest relative number of ear discharge. Approximately one-third of the participants in these two age groups reported to have had ear discharge, while this was only reported by 17% of the 18–29-year-olds and 16% of the 30–39-year-olds in 2014 (95% CI [0.03, 0.3] and [0.1, 0.3], respectively). The oldest age group indicated the lowest relative number of experiences of ear discharge in both 1995 and 2014 (18% and 17%, respectively). In 1995, 30% in the age group 30–39-year-olds reported hearing loss, whereas only 18% reported hearing loss in 2014 (p < 0.05, 95% CI [-0.003,0.2]). There was no significant difference in reported ear discharge since childhood and otitis media in childhood among the age groups between 1995 and 2014. However, in 1995 significantly more females had experienced ear discharge in the age groups 18–29 and 30–39 year-olds compared to 2014. Females in the age group 18–29 year-olds also showed a significant difference in having experienced otitis media in childhood, where 32% answered “yes” in 1995, and 18% answered “yes” in 2014 (p < 0.05). In 2014, females reported more frequent complaints of vertigo compared to males, 16% and 9%, respectively (p < 0.05). In 1995, there was no significant difference in experienced vertigo between males and females. Ear and hearing health problems and vertigo are reported frequently in the Greenlandic population. Overall, a tendency of less complaints in 2014 compared to 1995 except for vertigo. It is important to follow this trend and increase the prophylactic efforts to reduce common health disabilities like early otitis media in childhood and noise created symptoms even more.

Effect of Ear Infections on Hearing Ability: A Narrative Review on the Complications of Otitis Media.

Otitis media (OM) is an infection that occurs in the middle ear and can affect the structures around the ear, as well as the auditory system. It is one of the most frequent diseases affecting young children each year, especially those aged around six years, due to the anatomical structure and developing immune system.Although some cases of OM resolve spontaneously, children often need medical care since difficulties persist with such infections. The incidence of OM is higher among children than adults, and therefore, their speaking, hearing, and learning capabilities and general development are impaired by recurring middle ear infections.The literature over the last 40 years has documented the impact of early auditory deprivation produced by early OM with effusion (OME) on central auditory processing (CAP). This study aimed to review the impact of acute ear infections on hearing capacity, assess the complications of OM, and document the scientific evidence around the implications of early OME-induced hearing loss in children.Studies have reported the association between hearing loss owing to early OME and alterations in CAP in both children and adolescents. The auditory foundation enables hearing capacity, but this is continually depleted. Therefore, the use of strong antibiotics, sound amplification, hearing rehabilitation, and ear surgery in children must be improved.

To the question of the significance of otitis media in infancy 'for the later period. Prof. Marx. (Arch. F. Ohr., Nas. Und Kehlkopfheilkunde. B. 126. H. 1/2-1930. lull).

The author argues with Wittmak, who believes that newborns are often born with otitis media due to contamination of the middle ear with amniotic fluid and even meconium; at the same time, Witt Mac points out that otitis media are associated with these early otitis media more often than is usually thought. Marx opposes this statement, relying on one feature namely, the pneumatization of the mastoid process, which develops after birth.

Auditory Deprivation Caused By Early Otitis Media with Effusion

Auditory Deprivation Caused By Early Otitis Media with Effusion

Correlation between cognitive functions and central auditory processing in adolescents with non-cholesteatomatous chronic otitis media.

Auditory deprivation associated with early otitis media with effusion has been considered a risk factor for central auditory processing (CAP), as well as for the development of a number of cognitive functions.Objective:To study the neuropsychological functions of attention, working memory and executive function in adolescents with and without non-cholesteatomatous chronic otitis media (NCCOM) and analyze their interrelationships with the behavioral evaluation of CAP.Methods:Sixty-eight adolescents were recruited, 34 were diagnosed with NCCOM (study group - SG), and 34 had no otological history (control group - CG). The Neupsilin Brief Neuropsychological Assessment Instrument was used. CAP was assessed by: Masking Level Difference, Synthetic Sentence Identification, Random Gap Detection Test, Duration Pattern Sequence Test and Dichotic Digits Test.Results:The results of Neupsilin showed lower scores in the study group when compared to the control group on the following tests: digit sequence repetition, ascending digit ordering, auditory sentence span, and phonemic verbal fluency. An association was found between central auditory processing tests and Neupsilin subtests.Conclusion:The effects of NCCOM on attention, memory and executive function related to central auditory processing disorder in adolescents seem to be enhanced by the severity of the disease.

Consequences of Early Conductive Hearing Loss on Long-Term Binaural Processing.

The aim of the study was to investigate the long-term effects of early conductive hearing loss on binaural processing in school-age children. One hundred and eighteen children participated in the study, 82 children with a documented history of conductive hearing loss associated with otitis media and 36 controls who had documented histories showing no evidence of otitis media or conductive hearing loss. All children were demonstrated to have normal-hearing acuity and middle ear function at the time of assessment. The Listening in Spatialized Noise Sentence (LiSN-S) task and the masking level difference (MLD) task were used as the two different measures of binaural interaction ability. Children with a history of conductive hearing loss performed significantly poorer than controls on all LiSN-S conditions relying on binaural cues (DV90, p = <0.001 and SV90, p = 0.003). No significant difference was found between the groups in listening conditions without binaural cues. Fifteen children with a conductive hearing loss history (18%) showed results consistent with a spatial processing disorder. No significant difference was observed between the conductive hearing loss group and the controls on the MLD task. Furthermore, no correlations were found between LiSN-S and MLD. Results show a relationship between early conductive hearing loss and listening deficits that persist once hearing has returned to normal. Results also suggest that the two binaural interaction tasks (LiSN-S and MLD) may be measuring binaural processing at different levels. Findings highlight the need for a screening measure of functional listening ability in children with a history of early otitis media.

Risk Factors of Early Otitis Media in the Danish National Birth Cohort.

ObjectiveTo assess risk factors of otitis media (OM) in six-months-old children.MethodThe sample consisted of 69,105 mothers and their children from the Danish National Birth Cohort. The women were interviewed twice during pregnancy and again 6 months after birth. The outcome “one or more” maternal reported episodes of OM at age six months. In total 37 factors were assessed, covering prenatal, maternal, perinatal and postnatal factors.ResultsAt age six months 5.3% (95% CI 5.1–5.5) of the children had experienced one or more episodes of OM. From the regression analysis, 11 variables were associated with a risk of OM. When a Bonferroni correction was introduced, gender, prematurity, parity, maternal age, maternal self-estimated health, taking penicillin during pregnancy, and terminating breastfeeding before age six months, was associated with a risk of early OM. The adjusted ORs of OM for boys versus girls was 1.30 (95% CI 1.18–1.44). The OR having one sibling versus no siblings was 3.0 (95% CI 2.64–3.41). If the woman had been taking penicillin during pregnancy, the OR was 1.35 (95% CI 1.15–1.58). Children born before 38th gestational week had an increased OR for early OM of 1.49 (95% CI 1.21–1.82). Children of young women had an increased OR of early OM compared to children of older women. Additionally, children of women who rated their own health low compared to those rating their health as high, had an increased OR of 1.38 (95% CI 1.10–1.74). Finally, children being breastfeed less than 6 months, had an increased OR of 1.42 (95% CI 1.28–1.58) compared to children being breastfeed beyond 6 months.ConclusionThese findings indicate that prenatal factors are of less importance regarding early OM before the age of six months. Postnatal risk factors seem to pose the main risk of early OM.

Associations between otitis media and child behavioural and learning difficulties: Results from a Danish cohort

ObjectivesFindings from studies investigating early childhood episodes of otitis media (OM) and developmental outcomes are inconclusive. This may in part be because large-scale prospective studies controlling for relevant confounding factors are sparse. The present study investigates associations between OM in early childhood and later behavioural and learning difficulties controlling for relevant confounding factors. MethodsThe study applied data from the Aarhus Birth Cohort's 10–12-year-old follow-up (N=7578). Associations between retrospective parent-reported OM (no OM; 1–3 episodes of OM with/without tympanostomy tubes; 4+ OM episodes without tympanostomy tubes and; 4+ OM episodes with tympanostomy tubes) one the one hand, and parent- and teacher-reported scores on the Strengths and Difficulties Questionnaire (SDQ) and parent-reported academic difficulties on the other hand, were investigated. The following variables were controlled for: parental educational level, maternal and paternal school problems, parental post-natal smoking, breastfeeding, and age at which the child started walking. All analyses were stratified by gender. ResultsLarge differences in background characteristics were observed for the group of children with 4+ OM episodes with tympanostomy tubes compared to the no OM group. After controlling for relevant confounders, negative associations were consistently observed for the group of children with 4+ episodes of OM with tympanostomy tubes compared to the group of children without OM. This was particularly so for girls. ConclusionThe findings suggest an association between 4+ episodes of early OM with tympanostomy tubes and behavioural and learning difficulties later in childhood. The large inter-group differences, i.e. impact of residual and unmeasured confounding factors, may in part explain the observed associations and underline the need to include these in future studies.

Does Early Otitis Media Lead to IBD

Rates of inflammatory bowel disease (IBD) in children are rising. One etiologic hypothesis is that early use of antibiotics causes alterations in gastrointestinal flora that contribute to the development of IBD (JW Pediatr Adolesc Med Oct 31 2012). Researchers examined the association between an early diagnosis of otitis media (by age 5 years) — the most common diagnosis …

TLR4-mediated induction of TLR2 signaling is critical in the pathogenesis and resolution of otitis media

Otitis media is the most prevalent childhood disease in developed countries. The involvement of Toll-like receptors (TLRs) in otitis media pathophysiology has been implicated by studies in cell lines and association studies of TLR gene polymorphisms. However, precise functions of TLRs in the etiology of otitis media in vivo have not been examined. We investigated the inflammatory response to nontypeable Haemophilus influenzae using a model of otitis media in wild-type, TLR2(- /-) and TLR4(-/ -) mice by gene microarray, qPCR, immunohistochemistry, Western blot analysis and histopathology. Toll-like receptor-2(- /-) and TLR4(- /-) mice exhibited a more profound, persistent inflammation with impaired bacterial clearance compared to controls. While wild-type mice induced tumor necrosis factor-a (TNF) after non-typeable H. influenzae challenge, TLR2(-/-) and TLR4(-/-) mice lack TNF induction in the early phase of otitis media. Moreover, lack of TLR2 resulted in a late increase in IL-10 expression and prolonged failure to clear bacteria. Toll-like receptor-4(-/- ) mice showed impaired early bacterial clearance and loss of TLR2 induction in early otitis media. Our results demonstrate that both TLR2 and TLR4 signalling are critical to the regulation of infection in non-typeable H. influenzae-induced otitis media. Toll-like receptor-4 signalling appears to induce TLR2 expression, and TLR2 activation is critical for bacterial clearance and timely resolution of otitis media.

Effect of Early Otitis Media on Speech Identification

Otitis media (OM) is the most common cause of conductive hearing loss in children in India. Hearing loss secondary to OM has been reported to result in deficits in auditory processing. It was hypothesised that such deficits can be more deleterious if OM occurs in the first year of life as there is maximum development of auditory neural pathways during this period. Therefore, the purpose of this study was to document the effects of reduced auditory experience secondary to OM in the first year of life on speech identification. Another purpose was to study the persistence of the negative effects of auditory deprivation on speech perception. A cross-sectional approach and a standard group comparison design was used in the study. Twenty one children, aged 5.1 years to 6.6 years, who had OM between 6 months and 12 months of age participated in the study along with age and gender matched normal children. Speech identification scores were obtained from these children for natural words, spectrally distorted, and time compressed words. Results showed that the children with early OM had significantly poorer speech identification scores for spectrally and temporally distorted words compared to normal children. There was no significant difference in the speech identification scores for natural speech between the two groups. These results have important implications for the way the hearing needs of children with early onset OM are taken care of in the classrooms of schools in India, and perhaps other developing countries.

Early onset otitis media: risk factors and effects on the outcome of chronic suppurative otitis media

The onset of early otitis media (EOM), in the first few months of life has been reported to predict later chronic otitis media (CSOM), although the prevalence rates are increasing little is known about specific risk factors. In this survey we examined the hypothesis that higher risk factors is associated with the development of OM within 1 year compared to later onset and early onset otitis media (OM) has potential for negative outcome of CSOM. This is a survey of the age at onset of otorrhoea and associated risk factors in children with CSOM, in five sites spread in two sub-urban cities in two states in Nigeria. Questionnaires were administered on the informants followed by examination of the children. EOM was seen in 136/189 (70%) with CSOM, the age range was 1-150 months, mean of 59.25 (SD = 44.55). Of the 85 CSOM subjects with hearing loss, EOM accounted for 49 (57.7%) while 36 (42.4%) was later onset, On multivariate analysis (OR = 0.276, CI = 0.133-0.572, P = 0.001) revealing EOM was significant in the development of hearing loss however there was no correlation with the frequency of attack of otorrhoea (OR = 1.025, CI = 0.88-1.19, P = 0.75). Low socioeconomic status seen in 110/136 EOM (P = 0.000), allergy (P = 0.030) and number of people >10 in household (OR = 4.13, CI = 1.81-9.39, P = 0.001) constituted the significant risk for EOM compared to later onset. Bottlefeeding, adenoiditis/adenoid hypertrophy, indoor cooking and upper respiratory infection were not found to have statistical significance in early onset OM compared to later onset OM. This study found correlation between EOM and hearing loss and identified allergy, low social status and chronic exposure to overcrowding through increased number of children in the household significant risk factors for future research focus. This may help in controlling the prevalence of hearing loss accompanying CSOM.

Early otitis media among Minnesota American Indians: the Little Ears Study.

We examined relationships between otitis media risk factors, sociodemographic characteristics, and maternal knowledge and attitudes and early onset of otitis media. Pregnant women from Minnesota American Indian reservations and an urban clinic were enrolled in our study between 1998 and 2001. Follow-up was performed on enrollees' infants until the children were 2 years old. Research nurses collected data by ear examination, from interviews and questionnaires given to enrolled mothers, and otitis media episodes that were abstracted from medical records. Sixty-three percent of infants had experienced an otitis media episode by 6 months of age. Logistic regression analyses showed that maternal otitis media history, infant history of upper respiratory infection, and compliance with study visits were significantly related to early otitis media onset. Although high percentages of infants were exposed to cigarette smoke and other children and were formula fed, these factors were not related to otitis media. Mothers' prenatal awareness of otitis media risks associated with environmental tobacco smoke exposure and formula feeding did not predict their postpartum behaviors. We found that infant history of upper respiratory infection and maternal otitis media history are risk factors for early otitis media in American Indian infants. Mothers' prepartum knowledge and attitudes regarding otitis media did not predict their postpartum avoidance of risk behaviors.

Early Otitis Media with Effusion, Hearing Loss, and Auditory Processes at School Age

To examine the effect of conductive hearing loss (HL) secondary to otitis media with effusion (OME) in the first 3 years of life on physiologic, peripheral, and higher-order behavioral auditory measures examined at school age. Peripheral hearing sensitivity for conventional and extended high-frequency audiometric ranges, physiologic (distortion product otoacoustic emissions, contralateral and ipsilateral acoustic middle ear muscle reflexes), auditory brain stem response (ABR), and higher-order auditory processing measures (masking level difference; Virtual Auditory Localization, Speech Intelligibility Gain; adaptive Pediatric Speech Intelligibility task) were examined at the end of the second grade of elementary school in two cohorts (North Carolina, N = 73, and New York, N = 59). All participants (mean age, 8 years) were followed prospectively in infancy and early childhood (7 to 39 months) for middle ear status and hearing loss (using pneumatic otoscopy/tympanometry and repeated conditioned behavioral audiometric response procedures). Multivariate analyses were conducted to address whether early OME and early conductive HL were related to physiologic, peripheral, and higher-order auditory processes. Early hearing loss and OME were significantly associated with peripheral hearing at school age; extended high-frequency thresholds accounted for the result. Similarly, hearing loss in early life and OME were significantly associated with the acoustic middle ear muscle reflex: The contralateral stimulation condition accounted for the association. Significant associations with both early OME and early HL were also found for the auditory brain stem response measure and were explained by the correlations between early hearing loss and the ABR Wave V latency but not other ABR indices. There were no reliable associations between either early OME or early HL on any other auditory processes evaluated at the end of second grade. Extended high-frequency hearing and brain stem auditory pathway measures in childhood were significantly associated with children's experiences with OME and hearing loss from 7 to 39 months of age. However, no significant associations were found for psychoacoustic measures of binaural processing or a behavioral adaptive speech-in-noise test at school age.

What is the Role of Audition in Literacy?

What is the Role of Audition in Literacy?

Association of early‐onset otitis media in infants and exposure to household mould

Otitis media is one of the most common infections of early childhood. Children who first experience acute otitis media at an early age (before 6 months) are at increased risk for recurrent otitis media. This prospective study investigated exposure to measured levels of airborne household mould and the risk of early otitis media in the first 6 months of life among a cohort of infants at high risk for asthma. Between September 1996 and December 1998, women were invited to participate if they had at least one other child with physician-diagnosed asthma. Mothers were given a standardised questionnaire within 4 months of their infant's birth. Airborne mould samples were also taken at this time, and culturable fungi were categorised into four levels according to the report of the Commission of European Communities: 0 (undetectable), 1-499 colony forming units (CFU)/m(3) (low), 500-999 CFU/m(3) (medium), > or =1000 CFU/m(3) (high). Infant respiratory symptoms were collected during quarterly telephone interviews at 6, 9 and 12 months of age. Of the 806 children in the study, 27.8% experienced otitis media before six months of age. Household levels of Penicillium and Cladosporium were modestly associated with the number of otitis media episodes (P = 0.056 and 0.081 respectively). After controlling for potential confounders, Penicillium and Cladosporium were not associated with early otitis media. High levels of 'other' mould (defined as total spore count minus counts for Penicillium, Cladosporium, and yeast) were associated with early otitis media (OR 3.49; 95% CI [1.38, 8.79]). We also found associations between day-care outside of the home and birth during the summer or fall season with early otitis media. This study is suggestive of a relationship between otitis media and mould that warrants further study.

Aboriginal perspective on middle ear disease in the arid zone of Western Australia.

To explore perceptions, knowledge and experience of otitis media (OM) and barriers to compliance with treatment among Aboriginal people of the Kalgoorlie-Boulder area, Western Australia. This qualitative applied research study is based on a holistic design. We conducted structured interviews with three community focus groups, 56 key informants, and 22 mothers of babies known to have suffered from OM. Written records of interviews were checked with participants. The three sources of data enabled comparison and verification of results. People were concerned about serious consequences of OM, especially deafness and learning difficulties. Since early disease may have no localizing symptoms, not surprisingly, people had limited understanding of the aetiology of OM and were often only aware of disease once ear discharge was visible. Nevertheless, they usually sought treatment for non-specific symptoms. Competing demands in people's daily lives and the unpleasant, intensive nature of treatment result in families becoming resigned to a child's chronic ear discharge. Someone other than the biological mother within the extended family may be responsible for administering treatments. Half the carers thought passive smoking may predispose children to OM and 70% suggested clearing the nasal passages to prevent OM. Results of surgery were viewed positively but specialist services were not always readily accessible. Since responsibility for treatment may not lie with the biological mother, awareness campaigns must target the entire community. As early OM may be asymptomatic, health personnel should be encouraged to do otoscopy on all children with non-specific symptoms.

Pediatricians’ opinions about otitis media and speech-language-hearing development

Twenty-five pediatricians responded to a confidential survey about their opinions on the relationship between otitis media and children’s speech-language-hearing status. Results found that pediatricians did not necessarily agree that otitis media has an impact on speech-language-hearing development. Pediatricians reported that an early otitis media onset (birth to age 2) affects speech-language development, but they also reported that parents and daycare environments could mitigate any otitis media effect. Pediatricians reported a possible otitis media impact on hearing status, but they did not necessarily agree that an otitis media history required referral for audiological testing. Clinical implications are discussed for collaboration among pediatricians, speech-language pathologists, and audiologists. Learning outcomes (1) The reader will become familiar with pediatricians’ opinions about the impact of otitis media on speech-language development. (2) The reader will become familiar with strategies to support interdisciplinary collaboration between pediatricians, speech-language pathologists, and audiologists.