The principal finding of this study is the high prevalence and broad spectrum of speech-language abnormalities among children referred with persistent OME.

Formal assessment identified impairment in 68%, considerably exceeding the 42.31% in whom language delay had already been clinically recognized.

This discrepancy is clinically important.

It suggests that routine history may identify only the most overt developmental difficulties, whereas structured assessment can reveal more subtle deficits affecting working memory, phonological processing, auditory discrimination, rhythm, intelligibility, vocabulary, and morphosyntax.

However, these findings must be interpreted carefully.

The relationship between OME and language development has been debated for decades. Although persistent middle-ear effusion can produce fluctuating conductive hearing loss during periods of rapid language acquisition, longitudinal studies have not consistently demonstrated large or persistent developmental effects in otherwise healthy children [3–7].

The meta-analysis by Roberts et al. is particularly relevant. Across prospective studies, associations between early OME and later receptive language, expressive language, vocabulary, syntax, or speech were generally absent or small. Where differences were identified, effect sizes were modest, and confounding variables such as socioeconomic background remained important [5].

Our study therefore should not be interpreted as demonstrating that OME caused language impairment in 68% of affected children.

Rather, it demonstrates that within a clinically selected population of children with persistent OME, language abnormalities were common and frequently multidimensional.

Several characteristics of our cohort may help explain the high observed prevalence.

First, 84.62% had bilateral disease. Bilateral effusion is more likely than unilateral disease to produce functionally relevant degradation of auditory input.

Second, the cohort was selected for persistent OME of at least three months rather than transient community-detected effusion.

Third, hearing impairment was already clinically evident in 96.15%, indicating that this was not an unselected population of asymptomatic children.

Fourth, a substantial proportion came from lower socioeconomic backgrounds. Language development is strongly influenced by environmental and socioeconomic determinants, which may interact with hearing impairment and therefore represent potential confounders.

The age effect is particularly noteworthy.

Language impairment was identified in 91.67% of children aged 3–5 years, compared with 60.53% among older children.

The preschool period represents a phase of intense phonological, lexical, and morphosyntactic development. Degraded auditory access during this period may therefore be particularly relevant in susceptible children.

Nevertheless, the cross-sectional design prevents determination of whether the apparent age gradient represents developmental vulnerability, spontaneous recovery with age, referral patterns, duration of OME, or other unmeasured factors.

An important strength of our study is the characterization of specific domains rather than language delay as a binary endpoint.

Working-memory difficulties were the most frequent abnormality (44%). Auditory working memory is highly dependent on the quality and stability of incoming acoustic information. Increased listening effort associated with degraded auditory input may theoretically consume cognitive resources that would otherwise support encoding and retention.

Rhythm abnormalities were observed in 42% and phonological impairment in 36%. These findings are biologically plausible because accurate phonological development requires stable access to spectral and temporal speech cues.

Auditory discrimination was impaired in 26%, while 24% demonstrated reduced intelligibility. Lexical and morphosyntactic abnormalities were less frequent but remained clinically relevant.

This multidimensional pattern suggests that children with persistent OME should not necessarily be evaluated only for articulation or gross expressive delay.

At the same time, our treatment observations require particular caution.

The proportion of language abnormalities was lower among children who had already received tympanostomy tubes than among those awaiting surgery (62.07% versus 76.19%). However, this comparison was observational, treatment was not randomized, groups may have differed substantially at baseline, and there was no standardized paired pre/post-treatment assessment.

Accordingly, our study cannot establish that tympanostomy tubes improve language development.

This distinction is essential in light of randomized evidence.

Paradise et al. demonstrated that prompt tympanostomy-tube insertion in otherwise healthy young children with persistent effusion did not improve developmental outcomes compared with delayed insertion at six years [6], and follow-up to 9–11 years similarly failed to demonstrate a developmental advantage [7].

The clinical implication is therefore not that every child with OME and language concern requires immediate tube insertion.

Current evidence supports a more individualized strategy.

The 2016 AAO-HNSF guideline recommends identifying children at increased developmental risk, obtaining age-appropriate hearing testing when OME persists for three months or longer, and counseling families of children with bilateral OME and documented hearing loss regarding potential effects on speech and language development [1].

Children without additional risk factors may often undergo surveillance because many effusions resolve spontaneously.

Conversely, children with persistent bilateral OME, documented hearing impairment, parental or teacher concern, speech-language abnormalities, or developmental vulnerability warrant closer multidisciplinary evaluation.

Our findings therefore support collaboration between the otolaryngologist, audiologist, pediatrician, and speech-language pathologist.

The role of the speech-language pathologist should not be viewed as secondary to surgical management. In children with established language deficits, restoration of middle-ear ventilation does not automatically reverse developmental difficulties that have already emerged.

Clinical implications:
The results support three practical messages.

First, persistent OME should be considered not merely an otoscopic diagnosis but a condition requiring assessment of its functional auditory consequences.

Second, younger children and those with bilateral persistent disease and hearing concerns deserve particular developmental attention.

Third, when speech-language concerns are present, evaluation should extend beyond articulation to include phonological processing, auditory discrimination, vocabulary, morphosyntax, intelligibility, rhythm, and auditory-verbal memory.

Strengths and limitations:
The study provides detailed multidimensional speech-language characterization in a relatively understudied North African population and used an assessment battery adapted to the Moroccan context.

However, several limitations are substantial.

The sample was small and originated from a single tertiary center. There was no healthy control group. The cross-sectional observational design precludes causal inference. Hearing thresholds and duration/severity of conductive hearing loss were not available in sufficient quantitative detail for dose-response analysis. Socioeconomic and environmental confounders were not adjusted in multivariable models. Treatment groups were not randomized, and the study was not designed to determine the effect of tympanostomy tubes on language.

These limitations should explicitly temper interpretation of the high prevalence of observed abnormalities.