Otitis Media Research Articles

Role of High-Resolution Computed Tomography in Classifying Pneumatization of the Temporal Bone: Typical Patterns, Prevalence, and Implications

Introduction: Pneumatization patterns in the temporal bone have been implicated in the prognostic outcomes of various pathological conditions, such as cholesterol granulomas, otitis media, and cholesteatomas. This study investigated how high-resolution computed tomography (HRCT) helps to classify pneumatization patterns in the temporal bone, exploring its impact on the pathogenesis, surgical outcomes of temporal bone diseases, and its association with age and gender. Methods: HRCT of temporal bone of fifty patients of age 13 years and more with normal findings were included. The petrous apex, mastoid, and infra-labyrinthine regions’ pneumatization patterns were categorized using previously published grading methods. Results: The dominant pattern of pneumatization in the petrous apex was classified as group 2, indicating that less than 50% of the pneumatization was located medially in the labyrinth. Conversely, in the mastoid, the prevailing pattern was group 4, which signifies hyper-pneumatization. In the infra-labyrinthine region, the prevailing pattern was categorized as type B, indicating limited pneumatization. It was found that patients who exhibited augmented pneumatization in one compartment of the temporal bone tended to display similar changes on the opposite side and in other compartments on the same side (P < 0.05). Importantly, it was observed that younger age (P < 0.001) and male gender (P = 0.001) were associated with increased pneumatization in the petrous apex and infra-labyrinthine compartments. Conclusion: Different compartments of temporal bone show varying degrees of pneumatization. The level of pneumatization of the temporal bone is highly associated with age and sex.

Effects of trypsin and pepsin detection on chronic otitis media with effusion

Chronic otitis media with effusion (COME) is a common cause of hearing loss in children and adults. Laryngopharyngeal reflux (LPR) is often overlooked in the clinical management of COME complicated by LPR. This study aimed to investigate the presence and concentration of trypsin and pepsin in the middle ear effusion (MEE), as well as the recurrence rate of otitis media with effusion (OME) in COME patients with trypsin-/pepsin-positive MEE after acid-suppressive treatment (AST). In this study, trypsin and pepsin were found in the MEE of COME patients. Follow-up results showed that the recurrence rate of OME within 1 year was significantly lower in the AST group than in the non-AST group. Taken together, patients with COME can be offered pepsin detection of MEE, and if the pepsin test is positive, acid-suppressing drugs such as proton pump inhibitors could be recommended to prevent the recurrence of OME.

Simplified process for preparing native and depolymerized capsular polysaccharides of Streptococcus pneumoniae

Streptococcus pneumoniae is a major pathogen of bacterial pneumonia, meningitis, sepsis, and otitis media. The pathogenicity of this bacterium is largely attributed to its polysaccharide capsule, a protective layer around bacterial cell that enables bacteria to resist against host defense. Capsular polysaccharides (CPSs) of S. pneumoniae have been used as antigens to develop a variety of pneumococcal vaccines against invasive pneumococcal disease (IPD). These vaccines have been proven to be effective in reducing the incidence of IPD cases that are caused by vaccine-covered serotypes at the global scale. A crucial step in the manufacture of pneumococcal polysaccharide and conjugate vaccines is to purify native and depolymerized CPSs to meet strict quality standards in purity and structural integrity. The major impurities comprise proteins, nucleic acids and cell wall polysaccharides (CWPS). Traditionally, the removal of impurities to obtain purified native CPSs involves a complex process of purification, after which purified CPSs need to be further size-reduced to obtain depolymerized CPSs by multi-step approaches. In this study, we streamlined the process of CPS purification, which involves firstly ultrafiltration, followed by one-step acid precipitation, and finally diafiltration to obtain pure native CPSs. Furthermore, hydrolysis using trifluoroacetic acid (TFA) was integrated into the process to obtain purified depolymerized CPSs. The native and depolymerized CPSs produced by this optimized process were comparable to the materials obtained by the traditional approaches in purity and structural integrity, which would meet the quality standards of CPSs for vaccine production in the current edition of the European Pharmacopeia.

Long-term outcomes of childhood otitis media and hearing loss: a systematic review

ABSTRACT Otitis media (OM) is a common childhood illness which can cause hearing loss and developmental delays. This is the first systematic review to investigate the long-term, longitudinal health and social outcomes of OM and hearing loss in childhood. The study was registered in PROSPERO (CRD42023396318). A structured search strategy identified literature in the following databases: CINAHL, Scopus, Medline, PsychInfo, and EmCare. Articles were independently dual-screened and extracted data were synthesised. From 2825 potential studies, 25 were selected for inclusion. These assessed broad outcomes: physical health, audiological health academic, behavioural, social function, service use, and housing. Overall, 28% of papers found no difference between those with a childhood history of OM and those without, 40% found poorer outcomes for those with a history of OM, and 32% found mixed results. This is the first study of its kind to explore the long-term effects of otitis media and resultant hearing loss in children. Trends of poor academic, behavioural, and audiological outcomes were identified in children with OM and hearing loss. Multiple gaps in the literature were identified including a paucity of recent research, studies extending into adulthood, and studies focusing on high-risk populations.

Phytochemical Content towards Weak Antioxidants Activity of Traditional Fermented VCO as the Basic Ingredient for Ear Drops

Chronic Suppurative Media Otitis is caused by pathogenic bacteria, which, if the growth is not controlled, will cause meningitis and can lead to death. Virgin Coconut Oil is an oil made through the traditional fermentation process of coconut milk and can inhibit the growth of pathogenic bacteria that cause Chronic Suppurative Media Otitis. So far, pathogenic bacteria can be controlled using ear drops made from artificial chemicals, which can cause resistance. Only a few have studied the manufacture of natural-based ear drops from VCO. The purpose of this study is to study the potential of VCO as a natural essential ingredient for ear drops for patients with OMSK by analyzing its antioxidant content using the DPPH method and its phytochemical content using Ultraviolet-Visible Spectroscopy (UV-Vis) and Gas Chromatography-Mass Spectrometry (GC-MS). Its antioxidants in the IC50 (ppm) region are 583.92mg/L. The types of fatty acids contained in VCO consist of Medium-Chain Fatty Acid (MCFA), Long-Chain Fatty Acid (LCFA) and Very Long Chain Fatty Acid (VLCFA), the most of which is lauric acid (MCFA), as much as 49.28%. Conventional analysis of secondary metabolites showed the presence of Alkaloids, Terpenoids, Ascorbic Acid, and Saponins. It can be concluded that the chemical content of Virgin Coconut Oil made from fermentation can be used in the health field as a primary ingredient for making ear drops for CSOM patients.

Efficacy of 1.5% levofloxacin otic solution in treating acute otitis externa: A post hoc analysis of ENT103-3001, a multicenter randomized double-blind parallel-group placebo-controlled phase III study in otitis media with persistent otorrhea

ObjectiveIn this post hoc analysis, we aimed to evaluate the efficacy of 1.5% levofloxacin (LVFX) otic solution for the treatment of acute otitis externa (AOE) in patients with nonintact tympanic membrane (NTM) accompanied by chronic suppurative and acute otitis media. MethodsDigital endoscopic images of the tympanic membrane and cavity were evaluated. In addition, the full analysis set from the original ENT103-3001 study was analyzed to determine the efficacy of the 1.5% LVFX otic solution in treating patients with otitis media with persistent otorrhea. AOE was diagnosed by a study-specific blinded independent review committee (BIRC) in the present study, which reviewed the presence of inflammatory findings, such as edema, erosion, and/or erythema (redness), in the external ear canal on the digital endoscopic images acquired at screening. The improvement in the inflammatory findings in each diseased ear was evaluated by examining the digital endoscopic images acquired at the end of treatment (EOT; including study discontinuation) and follow-up (F/U) visits. Data regarding residual purulent otorrhea at EOT and F/U visits were assessed by the BIRC of the ENT103-3001 study. Similarly, otological symptoms at EOT were recorded in the patients’ diaries, and the bacterial eradication rates were used from the ENT103-3001 study. Improvement was defined as the resolution of the inflammatory findings and purulent otorrhea. ResultsAmong the 201 patients with otitis media, 161 patients had AOE (LVFX group, 82; placebo group, 79). The difference (95% confidence interval) between the groups at EOT was 27.3% (12.7, 40.3), and the proportion of patients showing improvement in all inflammatory findings in the external ear canal in the LVFX group (47.6%, 39/82) was significantly higher than that in the placebo group (20.3%, 16/79; Fisher's exact test, p < 0.001). Similarly, the bacterial eradication rate in the LVFX group (94.3%, 66/70) was also significantly higher than that in the placebo group (10.3%, 7/68; Fisher's exact test, p < 0.001). ConclusionThe use of 1.5% LVFX otic solution resulted in a significantly higher rate of improvement in inflammatory findings in the external ear canal and bacterial eradication rate, indicating its efficacy. Thus, 1.5% LVFX otic solution may be an effective treatment for chronic suppurative otitis media and acute otitis media, as well as AOE with NTM.

ОЦЕНКА БЕЗОПАСНОСТИ И ВЛИЯНИЯ ПНЕВМОКОККОВОЙ ВАКЦИНЫ «ПРЕВЕНАР-13» НА ПОКАЗАТЕЛИ ЗАБОЛЕВАЕМОСТИ ПНЕВМОНИЕЙ И ОТИТОВ У ДЕТЕЙ ПЕРВЫХ ПЯТИ ЛЕТ ЖИЗНИ

The scientific article presents an assessment of the clinical effectiveness and safety of the use of the pneumococcal conjugate 13-valent vaccine (PCV13, PCV 13) «Prevenar 13» in children from 0 to 5 years old, observed in the children's department of the State Budgetary Institution of Healthcare of the Secondary Educational Institution «SGKP N 15» in the city Samara. The study included 590 children, who were divided into 2 groups. The first (main, group PC-13) group included children born in 2018 - 2020 and vaccinated with the Prevenar 13 vaccine according to the «2 + 1» (n=490), the second (control) group included children born in 2013 and not vaccinated with a vaccine against pneumococcal infection, including Prevenar 13 (n=100). The study revealed that during the 2nd year of life in children of the first group, the incidence rate after vaccination decreased by 2 times. The incidence rate of pneumonia in the group of vaccinated children also decreased in all age periods, and the incidence rate of otitis media during the entire observation period in the second group of children (unvaccinated) was higher. Based on the data presented, we can conclude that vaccination with Prevenar-13 is a safe and effective measure in the prevention of ARI (acute respiratory infections) in children.

Otorhinolaryngological Problems in Mucopolysaccharidoses: A Review of Common Symptoms in a Rare Disease.

The mucopolysaccharidoses (MPSs) are very rare lysosomal diseases. MPSs belong to inherited diseases; however, newborns are usually asymptomatic. A deficiency of one of the enzymes, which is responsible for glycosaminoglycan (GAG) catabolism, results in the accumulation of this material. GAGs lead to progressive damage to tissues. More than 90% of patients with MPS suffer from otitis media with effusion or recurrent otitis media, craniofacial dysmorphia, obstructive sleep apnea, different types of hearing loss, and progressive upper and lower airway dysfunction. Patients visit otolaryngologists often before the diagnosis of MPS. Thus, the awareness of symptoms of MPS is crucial for otolaryngologists and pediatricians. The earlier the diagnosis is made, the more effective treatment is. Ineffective or delayed treatment leads to premature death. Two principal treatments for MPS are currently available: hematopoietic stem cell transplantation (HSCT) and enzyme replacement therapy (ERT). In recent years, there has been a growing interest in gene therapy as a potential treatment for patients with MPS. Mortality in patients with MPS typically occurs during childhood and early adolescence as a consequence of upper and lower respiratory diseases. This systematic review is based on papers available in the following scientific databases: MEDLINE (via PubMed), Web of Science, Scopus, and the Cochrane Library. After screening, 72 articles met our inclusion criteria. It is of paramount importance that otolaryngologists are involved in this field. This narrative review examines and synthesizes the otolaryngologic issues encountered in patients with MPS.

Radiofrequency Ablation Eustachian Tuboplasty for the Treatment of Chronic Otitis Media with Effusion and Premature Extrusion of the Tympanostomy Tube.

Objective: This study evaluated the effects of radiofrequency ablation (RFA) eustachian tuboplasty on the treatment of chronic otitis media with effusion (COME), and associated complications, in patients with premature extrusion of the tympanostomy tube (TT). Materials and Methods: Tuboplasty and T-tube reinsertion were performed in 23 ears with COME, a history of premature TT extrusion, and thickened mucus. Tube retention, perforation closure, hearing improvement, and complications were evaluated. Results: All 23 patients with COME and previous premature TT extrusion had remarkable mucosal hypertrophic disease or mucosal polypoid changes in the posterior cushion or posterior wall in the nasopharyngeal eustachian tube (ET) orifice. All surgeries were completed within 20 minutes after general anesthesia and were performed in the operating room. Pre-and post-air-bone gap gain was 18.3 ± 2.5 dB. The TT was retained for at least 12 months in 19 patients, whereas intentional premature removal at postoperative 8 to 9 months was required in 2 patients and premature extrusion occurred in 2 patients. Thus, the tube retention success rate was 91.3% (21/23). Of the 21 ears with intentional removal, the perforation closure rate was 81.0% (17/21). None of the patients reported RFA-related serious adverse events or a patulous ET. However, a scar synechia of the anterior-posterior wall was seen in 1 ET orifice, and stenosis of the ET orifice in 4 patients. Conclusions: RFA eustachian tuboplasty combined with TT insertion is a simple and minimally invasive technique for the treatment of intractable COME in patients with a thickened mucosa of the nasopharyngeal ET orifice. This technique may prevent premature TT extrusion.

Isolation of Shewanella algae from blue crabs (Callinectes sapidus) in Northwestern Adriatic Sea

Abstract Blue crab (Callinectes sapidus) is one of the last reported invasive species that have colonized the Italian coasts, in particular the lagoons of the northern Adriatic Sea. Their massive presence is compromising shellfish farming, causing a serious economic crisis among the valley populations. To limit the economic damage, blue crabs have been introduced as human food in the Italian markets. This study aimed to evaluate the microbiological contamination of blue crab as potential risk to human health. From July 2023 to April 2024, 72 blue crabs were collected in coastal lagoons and 5-6 nm from the coast of the Emilia Romagna Region. Microbiological analysis revealed Shewanella algae as one of the most commonly identified microorganisms (18/72, 25%). Shewanella was isolated on Chromagar Vibrio™ and TCBS after an enrichment step in Alkaline Saline Peptone Water. Colony morphology, Gram stain, and biochemical tests (oxidase, catalase) sustained Shewanella identification, later confirmed by MALDI-TOF MS (MALDI Biotyper® Sirius, Bruker Daltonics). S. algae is a Gram-negative, rod-shaped, aerobic microorganism widely distributed in seawater, freshwater, and soil. In humans, it is considered an opportunistic pathogen, especially in people with impaired immune systems. Shewanellosis has been strongly associated with seawater exposure and typically arises in hot months. Clinical manifestations include skin and soft tissue infections, otitis media, keratitis, biliary tract infections, vertebral discitis, and bloodstream infections. Notably, in the last years, S. algae infections have increased globally, even in healthy young people. The present study suggests blue crabs as a potential source of S. algae throughout the year. The increasing identification of S. algae in marine waters worldwide, as well as in marine-derived foods like blue crabs, underscores the growing importance of S. algae as an emerging pathogen and its impact on public health. Key messages • Shewanella algae is an opportunistic pathogen, increasingly isolated in marine water and seafood. • Blue crab is an invasive species that has recently conolonised the Italian coasts.

Comparison Between the Effect of Lincomycin and Azithromycin on Streptococcal Pharyngitis

Acute follicular tonsillitis is a common disorder that affects mainly pediatric and teenage age groups. Although it is highly curable, there are still many complications (like rheumatoid arthritis, valvular heart disease, middle ear infection, meningeal infection, and sinusitis) that make this infection in group A streptococci (G.A.S.) require proper and fast treatment. Azithromycin macrolide antibiotics have been used for a long time as a substitute for lincomycin antibiotics, whereas penicillins were shown to be allergic for some patients. Aim of the study: to assess the potency of either azithromycin or lincomycin on G.A.S. pharyngitis Patients and method: 84 patients with acute pharyngeal infection with G.A.S. were enrolled in this study and divided randomly into two equal groups. Group A received azithromycin, and group B received lincomycin. Both groups received their treatment for 5 days, after which rapid strep test (RST), leucocyte count WBC, and C-reactive protein (CRP) were done and compared to the 1st day of identification. Statistical analysis was done to evaluate the statistical significance of tested drugs. Results: Overall, the results demonstrate that lincomycin has a higher rate of curing G.A.S. tonsillitis than azithromycin, making it a preferred antibiotic agent.

Intradural Repair of Temporal Bone Encephalocele and Cerebrospinal Fluid Leak: Results from a Single Institution

Abstract Background Lateral temporal bone encephaloceles incidence is increasing with obesity rates. Middle fossa (MF) craniotomy, transmastoid (TM), or combined MF + TM access can be used for repair. Methods Retrospective review of MF or MF + TM repair with an intradural graft. Sex, age, and body mass index (BMI) were collected. Pre/postoperative audiometric results were included. Postoperative complications were reported. Results A total of 49 patients (50 repairs) were included. In addition, 74% were women (p &lt; 0.05). Ten patients had a history of chronic otitis media and surgery. Average BMI was 35.8, and average age was 59. Furthermore, 54% had multiple skull base defects; 18 (36%) patients had a MF approach. In total, 32 (64%) patients had a MF + TM approach for repair; 13 (40.1%) of these patients had a concurrent tympanoplasty. Hearing improved for 74%. Air conduction pure-tone average improved by an average of 5 dB (p 0.27). No differences in hearing outcomes were observed between the MF and MF + TM groups. Two patients (6%) had hearing decline. Eight complications were reported (1 (2%) skin infection, 4 (8%) recurrent/persistent cerebrospinal fluid [CSF] leaks requiring lumbar drain or shunt, and 3 (6%) episodes of aphasia or mental status change). Age &gt;65 years was not associated with risk of postoperative complication. Conclusion Intradural repair of encephalocele and CSF leak is a safe and effective surgical approach. Intradural reinforcement along the entire MF floor is beneficial for multiple areas of dehiscence and thin dura. Complication rates including recurrent/persistent CSF leak and aphasia related to temporal lobe retraction were similar to previously published reports and not associated with older patient age. Hearing was stable or improved in 94% with no difference noted between MF and MF + TM repair.

Optimization of manufacturing process for serotype 14 pneumococcal capsular polysaccharide

Streptococcus pneumoniae is a pathogenic bacterium that causes infections such as pneumonia, meningitis, otitis media, and bacteremia. The prevention of pneumococcal disease by vaccination has become more urgent due to increased antibiotic resistance. Pneumococcal capsular polysaccharides (CPS) are effective vaccine antigens that stimulate the host to produce protective antibodies. S. pneumoniae serotype 14 is one of most prevalent types in Latin America and across the world. However, the yield of S. pneumoniae serotype 14 CPS from existing fermentation processes remains low and requires improvement. In this study, various aspects of the fermentation process were optimized to improve pneumococcal growth and polysaccharide productivity, including feed medium, cultivation gas environment, fermentation pH, and temperature. A simplified purification method was also developed to obtain pure CPS, including ultrafiltration, acid and ethanol precipitation, diafiltration, and lyophilization. These fermentation optimizations significantly enhanced the optical density of pneumococcal bacterial cultures and increased fermentation yields to 2.4–2.6 g/L—significantly higher than previously achieved. Furthermore, the test results of pure CPS could meet the requirements in the European Pharmacopoeia (11th edition). These optimizations provide valuable insights into the nutritional requirements and impact of varying fermentation process parameters on pneumococcal growth and CPS productivity, thus contributing to the development of a more efficient and cost-effective method for the production of pneumococcal CPS—essential for manufacturing vaccines against pneumococcal infections.

IgG4-Related Disease Involving the Ear: A Case Report.

IgG4-related disease is a chronic inflammatory disease with widespread clinical presentation. It mimics various malignant, infectious, and inflammatory conditions, leading to confusion in diagnosis and management. Otological manifestations, though relatively rare, can lead to significant complications. A 45-year-old male with a recent history of ventilation tube placement in the right ear presented with a sensation of imbalance associated with profound hearing loss. He was managed in line of acute otitis media with labyrinthitis with steroids and antibiotics and removal of the ventilation tube. He returned in one week and presented with right-sided lower motor neuron-type facial paresis. Computed tomography images of the temporal bone showed a soft tissue density lesion in the right middle ear cavity extending to the mastoid antrum. He underwent a right cortical mastoidectomy with decompression of the facial nerve. Histopathology and immunohistochemistry of granulation tissues from the middle ear and the mastoid revealed evidence suggestive of probable IgG4 disease. IgG4-related disease is a relatively new entity, and its pathogenesis has not been properly understood. IgG4 subclass has been involved in this disease resulting in fibro-inflammatory conditions leading to tumor-like masses or fibrosis of the affected organs. Treatment includes glucocorticoids and immunosuppressant medications.

Effectiveness of Telemedicine in Managing Health-Related Issues in the Pediatric Population: A Systematic Review.

Healthcare delivery is made more convenient and effective via telemedicine, which enables physicians to conduct virtual consultations and evaluations with pediatric patients. The purpose of this systematic review was to evaluate the efficacy of telemedicine as compared to physical appointments in the pediatric population. We used Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines to search for the available literature using pre-specified inclusion and exclusion criteria. These databases provided 968 relevant research articles, which Endnote software screened for duplicates. Fourteen studies were considered relevant for full-text evaluation. After complete text evaluation, only 11 of these articles were found to be relevant. The Newcastle-Ottawa Scale (NOS) was used for the risk of bias assessment of all included studies. Eleven articles in all satisfied the requirements for inclusion and were added to the review. Every study was classified as either a cluster randomized trial (27%) or a randomized controlled trial (RCT) (73%). There were between 22 and 400 participants in each trial. Medical conditions evaluated included obesity (27%), mental health disorders (9%), asthma (18%), otitis media (9%), skin disorders (9%), type 1 diabetes (9%), attention deficit hyperactivity disorder (ADHD) (9%), and pancreatic insufficiency associated with cystic fibrosis (1/11). Telemedicine strategies employed included telemedicine-based screening visits (9%), smartphone-based therapies (27%), phone counseling (18%), and videoconferencing visits between patients and doctors (45%). The outcomes of the telemedicine procedures in every included study were on par with or superior to those of the control groups. Medication adherence, appointment completion rates, life satisfaction, symptom management, and disease progression were all outcomes associated with these findings. Although more research is needed, the evidence from this review suggests that telemedicine services for the general public and pediatric care are comparable to or better than in-person services. Patients, healthcare professionals, and caregivers may benefit from using both telemedicine services and traditional in-person healthcare services. To maximize the potential of telemedicine, future research should focus on improving patients' access to care, increasing the cost-effectiveness of telemedicine services, and eliminating barriers to telemedicine use.

Wildfire Seasons, Prenatal PM2.5 Exposure, and Respiratory Infections by Age 1 Year: A Population-Based Case-Control Analysis of Critical Developmental Windows.

The 2017 and 2018 wildfire seasons in British Columbia (BC), Canada were unprecedented. Among all the pollutants in wildfire smoke, fine particulate matter (PM2.5) poses the most significant risk to human health. There is limited research on prenatal wildfire smoke exposure and its impacts on infant health. We used a population-based nested case-control design to assess the association between daily PM2.5 exposures during specific developmental windows and the occurrence of otitis media or lower respiratory infections by age 1 year, including infections associated with dispensations of the antibiotic amoxicillin. We observed the strongest association between per 10 μg/m3 increase in PM2.5 exposure and otitis media during the fourth window of eustachian tube development (weeks 19-28) with an OR [95% confidence interval] of 1.31 [1.22, 1.41]. Similarly, the canalicular stage of lower respiratory tract development (weeks 18-27) was associated with the highest odds of lower respiratory infections, with an OR of 1.21 [1.15, 1.28]. Measures to reduce wildfire smoke exposure during pregnancy are warranted.

Association between vitamin D deficiency and otitis media with effusion in children: a systematic review and meta-analysis

Background Vitamin D plays a crucial role in the regulation of inflammation. However, its effect on the development of otitis media effusion (OME), an inflammatory disease of the middle ear without signs of infection, remains largely unknown. Objective To assess the association between vitamin D deficiency and OME in children by systematic review and meta-analysis of the literature. Methods Eligible studies retrieved from PubMed, ProQuest, Embase, Cochrane databases and trial registries published up to 30 October 2022 were included in this review. The risk of bias of the included articles was assessed with the JBI Critical Appraisal Checklist for observational studies. The certainty of evidence was assessed with the Grading of Recommendations Assessment, Development and Evaluation framework. Results We included eight studies (six case-control and two cross-sectional studies) involving 1,114 children, of which four studies were eligible for meta-analysis due to the significant clinical heterogeneity. We found that vitamin D deficiency (defined as vitamin D concentration of 20 ng/mL or less, i.e., ?50 nmol/L) might increase the odds of developing OME by 66.0% (n=514; OR 1.66; 95%CI 1.09 to 2.54; I2=20%), albeit with a very low certainty of evidence. Conclusion There is a very low quality of evidence indicating that vitamin D deficiency is associated with the development of OME in children. Further large, high-quality cohorts and adjusting for confounding factors are warranted to confirm our findings, ideally by exploring the dose-response relationship between vitamin D concentration and the development of OME.

Natural history of otitis media with effusion without hearing loss in children under 12 years: a systematic review

ObjectiveThis study aimed to evaluate the natural history of otitis media with effusion (OME) without hearing loss in children under 12 years.MethodsWe performed a systematic search in Embase, CINAHL, MEDLINE,...

Intractable otitis media-Pathogenesis and treatment of Eosinophilic otitis media (EOM) and otitis media with Antineutrophil cytoplasmic antibody (ANCA) -associated vasculitis (OMAAV)

Intractable otitis media-Pathogenesis and treatment of Eosinophilic otitis media (EOM) and otitis media with Antineutrophil cytoplasmic antibody (ANCA) -associated vasculitis (OMAAV)

The evaluation of auditory processing skills and late latencies in children with ventilation tube history

Objective(s): This study aims to evaluate the changes in temporal auditory processing skills in children who underwent bilateral ventilation tube insertion (VTI) due to Otitis Media with Effusion (OME) and the effect of these changes on speech comprehension in noisy environments. MethodsThis is a case-control study. In total, 60 children were included in the study in two groups. The control group included 30 children aged 11 to 15, who had normal hearing thresholds and normal immitancemetric evaluation, and were not diagnosed with OME. The study group included 30 children, aged 11–15 who underwent bilateral VTI surgery after their diagnosis of OME during the ages of 3–10 and currently had normal hearing thresholds and normal immitancemetric values. Each group underwent the Turkish Matrix Test (TMT), Random Gap Detection Test (RGDT), Frequency Pattern Test (FPT), Duration Pattern Test (DPT), and Cortical Auditory Evoked Potential Test (CAEP). ResultsWhen the temporal processing tests (FPT, DPT, RGDT) were compared, a significant difference was obtained between the study group and the control group (p < 0.05). With the TMT, significantly lower scores were obtained in the study group compared to the control group (p < 0.01). In addition, the latency values in the cortical auditory evoked potential test were longer in the study group compared to the control group, but these results were not statistically significant (p > 0.05). ConclusionAs a result of the study, it is concluded that the central auditory processing skills were affected in children with a history of bilateral VTI due to OME. Temporal processing tests, Turkish Matrix Test and Cortical Auditory Evoked Potential tests can be recommended as reliable and easily applicable tests, together with traditional hearing test methods in children with a history of OME, in order to evaluate comprehension skills in classroom noise.