Hearing organ disorders in patients with systemic sclerosis

Hearing impairment in systemic sclerosis patients-what do we really know?

Background

Systemic sclerosis (SSc) is a disease of a very heterogeneous clinical picture and immunological profile with progression rate that varies between individuals. Although hearing deterioration is not a complaint that comes to the fore in SSc patients, as it is not life-threatening compared to many other more severe symptoms of this disease, it can significantly impair the quality of life. Medical literature concerning this problem is rather scarce.

Materials and methods

In this article we systematically reviewed the medical publications concerning hearing impairment in patients with systemic sclerosis to evaluate current understanding of this complex problem. Following PRISMA guidelines a total of 19 papers were found and analysed including 11 original studies and 8 case reports.

Results

Although it seems that hearing impairment in SSc patients is relatively more common than in the general population, based on the analysis of available literature, no firm conclusions regarding its frequency and pathomechanism can be drawn yet. Microangiopathy leading to damage to the sensory cells of the inner ear is suspected to be the main mechanism of hearing loss, although damage to the higher levels of the auditory pathway appears to be underestimated due to incomplete audiological diagnosis.

Conclusion

Undoubtedly, the reason for the difficulty in such an evaluation are the complex and still not fully elucidated pathomechanism of SSc, the individually variable dynamics of the disease and the unique heterogeneity of symptoms. Nevertheless, further studies in larger and appropriately selected groups of patients, focused more on the dynamics of microangiopathy and not solely on clinical symptoms could provide answers to many key questions in this regard.

Secondary autoimmune immune ear disease (AIED): a systematic review and meta-analysis on vestibular manifestations of systemic autoimmune and inflammatory disorders

Secondary autoimmune inner ear disease (AIED) is often bilateral and asymmetric in patients presenting with audiovestibular symptoms due to a systemic autoimmune disease. This systematic review and meta-analysis are aimed at identifying and highlighting patterns in prevalence of vestibular dysfunction, symptom presentation, and diagnostic methods in extant literature by combining clinical context from case reports with quantitative analyses from cohort studies. Screening of articles by title, abstract, and full text was completed by four reviewers (K.Z., A.L., S.C., and S.J.). In this study, we grouped secondary AIED and systemic autoimmune diseases by pathophysiologic mechanism: (1) connective tissue disease (CTD), (2) vasculitides (VAS), (3) systemic inflammatory disorders (SID), and (4) other immune-mediated disorders (OIMD). The search for AIED disease identified 120 articles (cohorts and case reports) that met the final inclusion criteria. All 120 were included in the qualitative review, and 54 articles were included for meta-analysis. Of these 54 articles, 22 included a control group (CwC). Ninety individual cases or patient presentations from 66 articles were included for analysis in addition to the 54 cohort articles. Secondary AIED does not have a diagnostic algorithm for managing vestibular symptoms. The management of audiovestibular symptoms requires close collaboration between otolaryngologists and rheumatologists to preserve end-organ function of the ear. To improve our ability to understand the impact on the vestibular system, vestibular clinicians need to develop a standardized reporting method. Clinical presentation should frequently be paired with vestibular testing to contextually investigate symptom severity and provide higher quality care.

Tinnitus characteristics in patients with hyperacusis and vertigo (including Ménière's disease) vs. hyperacusis alone

INTRODUCTION AND OBJECTIVES

To compare clinical and psychoacoustic tinnitus characteristics in patients with the comorbidity of hyperacusis, hyperacusis and vertigo, and with Ménière's disease (MD).

MATERIALS AND METHODS

Three hundred and twenty-nine tinnitus patients underwent audiological and otoneurological evaluation. Records of 94 individuals younger than 65 years, 40 women and 54 men (mean age 41.8, range 24-64 years), who complained of tinnitus and hyperacusis, were analyzed. One hundred and thirty-one ears with tinnitus were identified: 67 in the group of patients with tinnitus and hyperacusis (group 1; 41 patients); 28 in the group fulfilling criteria of MD diagnosis (group 2; 28); and 36 in the group with tinnitus, hyperacusis and typical symptoms of vertigo (group 3; 25).

RESULTS AND CONCLUSIONS

Mean value of interaural difference in canal paresis in group 1 was 6.3%; in group 2: 23.7%; and in group 3: 25.9%; p<.001. Mean tinnitus pitch value was significantly lower in group 3 (1679Hz; SD=1139) and group 2 (2250Hz; SD=1162) compared to group 1 (4538Hz; SD=3123; p=.012). Values of tinnitus intensity and other characteristics did not significantly differ between the groups. Tinnitus and hyperacusis were most frequently preceded by acoustic trauma. Tinnitus coinciding with hyperacusis and vertigo was observed in patients after head trauma. Mean tinnitus pitch was lower in the groups of patients with hyperacusis and peripheral labyrinthine lesion than in tinnitus sufferers with hyperacusis alone. Tinnitus sufferers with low tinnitus pitch should undergo vestibular system evaluation. Hyperacusis and vertigo are likely comorbidities in tinnitus patients after head trauma. Hyperacusis may coincide in tinnitus patients after head trauma.

A genome-wide association study of tinnitus reveals shared genetic links to neuropsychiatric disorders

Tinnitus, a phantom perception of sound in the absence of any external sound source, is a prevalent health condition often accompanied by psychiatric comorbidities. Recent genome-wide association studies (GWAS) highlighted a polygenic nature of tinnitus susceptibility. A shared genetic component between tinnitus and psychiatric conditions remains elusive. Here we present a GWAS using the UK Biobank to investigate the genetic processes linked to tinnitus and tinnitus-related distress, followed by gene-set enrichment analyses. The UK Biobank sample comprised 132,438 individuals with tinnitus and genotype data. Among the study sample, 38,525 individuals reported tinnitus, and 26,889 participants mentioned they experienced tinnitus-related distress in daily living. The genome-wide association analyses were conducted on tinnitus and tinnitus-related distress. We conducted enrichment analyses using FUMA to further understand the genetic processes linked to tinnitus and tinnitus-related distress. A genome-wide significant locus (lead SNP: rs71595470) for tinnitus was obtained in the vicinity of GPM6A. Nineteen independent loci reached suggestive association with tinnitus. Fifteen independent loci reached suggestive association with tinnitus-related distress. The enrichment analysis revealed a shared genetic component between tinnitus and psychiatric traits, such as bipolar disorder, feeling worried, cognitive ability, fast beta electroencephalogram, and sensation seeking. Metabolic, cardiovascular, hematological, and pharmacological gene sets revealed a significant association with tinnitus. Anxiety and stress-related gene sets revealed a significant association with tinnitus-related distress. The GWAS signals for tinnitus were enriched in the hippocampus and cortex, and for tinnitus-related distress were enriched in the brain and spinal cord. This study provides novel insights into genetic processes associated with tinnitus and tinnitus-related distress and demonstrates a shared genetic component underlying tinnitus and psychiatric conditions. Further collaborative attempts are necessary to identify genetic components underlying the phenotypic heterogeneity in tinnitus and provide biological insight into the etiology.

Hearing Loss Secondary to Systemic Sclerosis Vasculopathy: Case Study with a Short Review

Systemic sclerosis (SSc) is a collagenosis with a substrate of chronic inflammation, which is determined by autoimmunity. The pathogenesis of this disease involves microvasculopathy (small vessel pathology) followed by excessive cutaneous and visceral fibrosis. Although acoustic and vestibular impairment is not classified as being a secondary pathology of SSc, several studies have identified cases of SSc that associate hearing loss and especially vertigo and tinnitus. This paper presents data from the medical literature that have identified vestibular and auditory symptoms among patients with SSc, associating the clinical case presentation of a patient suffering from SSc, which is associated with hearing loss. The need for additional studies on larger groups of patients is underlined, in order to clarify the impact of vasculopathy and fibrosis on the acoustic and vestibular analyzer in patients with SSc.

Audiological Involvement in Patients with Systemic Sclerosis

OBJECTIVE

The aim of the present study was to evaluate hearing loss in patients diagnosed with SSc (systemic sclerosis) and to investigate the relation between hearing loss, subtypes of the disease, its duration and clinical findings, and antibody positivity.

METHODS

The study included 47 patients with SSc and 44 healthy controls. Audiometric, tympanometric and otoacoustic emission measurements were applied to both groups.

RESULTS

The evaluation of the participants medical history showed that among the patients with SSc, 19.1% experienced ear fullness, 27.7% experienced vertigo and 36.2% experienced tinnitus. Hearing loss was detected in 23.4% of the patients with SSc. The corresponding result was 4.3% in the control group with a statistically significant difference (p = 0.001). Transient evoked otoacoustic emission (TEOAE) amplitude values were significantly lower in the patients both ears with SSc than the control group (p < 0.005). Duration of disease was significantly longer and DLCO (diffusing capacity of the lungs for carbon monoxide) values were significantly higher in the patients with SSc and sensorineural hearing loss.

CONCLUSIONS

The present study found that the incidence of hearing loss was significantly higher in the study group than healthy control group. In addition to other organ involvements, cochlear involvement occurs in these patients, and further studies are required.

[Immune-mediated sensorineural hearing loss: prevalence and treatment strategies]

Autoimmune sensorineural hearing loss is a rare clinical entity which accounting for less than 1% in all cases with hearing loss. The prevalence of hearing loss in immune-mediated inner ear diseases, as shown in case reports or single-center statistics, varies widely. We reviewed the current literatures on the association between sensorineural hearing loss and autoimmune diseases, focused on the prevalence of hearing loss in different autoimmune diseases, treatments and challenges.

Cochlear involvement in patients with systemic autoimmune rheumatic diseases: a clinical and laboratory comparative study

PURPOSE

Inner ear involvement has been reported in systemic rheumatic disease while detection of cochlin-specific antibodies has been reported in patients with idiopatic sensorineural hearing loss, suggesting cochlin's strong link to autoimmune hearing loss. The aim of this cross-sectional study was to calculate the prevalence of sensorineural hearing loss (SNHL) in patients with systemic rheumatic diseases, and to investigate any potential correlation with human antibodies to cochlin.

METHODS

Patients with rheumatoid arthritis (RA), systemic lupus erythematosus (SLE), Sjogren's syndrome (SS) and systemic sclerosis (SSc) according to the criteria of American College of Rheumatology were included in the study. All patients underwent a complete ear-nose-throat physical examination and audiological evaluation with pure tone audiometry and impedance audiometry. Pure tone average was calculated, taking as a starting point the hearing loss in dB according to the recommendation 02/1 of "Bureau International d' Audiophonologie" (BIAP) so as an average hearing threshold value. Sera of all patients were tested for the presence of IgG antibodies to human cochline (COCH-IgG). Sex and age-matched healthy subjects were included as controls to each group.

RESULTS

A total of 133 patients were studied; 60 with RA, 41 with SLE, 24 with SS and 8 with SSc. 61.4% of patients reported vertigo, 41% hyperacousis, 39% hearing loss, 38% tinnitus, 37.9% headache and 2.1% sensation of ear pressure with unremarkable otoscopy. The prevalence of SNHL calculated for patients affected by RA, SLE, SS and SSc was 66.6%, 31.71%, 54.17%, and 75% respectively. The calculated average hearing thresholds value in RA was increased in comparison to SLE (p < 0.05). In addition it was also higher in patients with RA and secondary SS, in comparison to RA patients (p > 0.05). There was statistically significant correlation of average hearing threshold with disease activity score 28 (DAS28) in RA, but no correlation observed with disease activity index (SLEDAI) in SLE. COCH-IgG antibodies were detected in only two samples. The results were compared with those of their respective sex and age-matched healthy subjects.

CONCLUSION

Our study revealed increased prevalence of SNHL in patients with systemic autoimmune rheumatic disease but no correlation of hearing loss with COCHIgG antibodies. The mechanism of inner ear damage remains unknown; thus, additional prospective studies will be needed to elucidate its pathogenesis.

Alterações auditivas na esclerose sistêmica

RESUMO Objetivo Descrever as queixas e alterações auditivas em indivíduos com esclerose sistêmica (ES), bem como verificar a evolução do quadro audiológico. Método Trata-se de estudo seccional, com uma fase prospectiva, realizado no período de 2012 e 2015, com pacientes com diagnóstico médico de ES. Foram coletados dados sociodemográficos, ano de início da doença, ano de diagnóstico e subtipo da enfermidade. Posteriormente, foram realizadas a anamnese audiológica, para identificação de queixas e sintomas e para a investigação de realização de audiometria pregressa ao estudo, e, em seguida, a avaliação audiológica básica. Resultados Participaram do estudo 50 indivíduos. Tontura e zumbido foram os sintomas mais frequentes. A perda auditiva foi identificada em 23 (46%) indivíduos, sendo a maioria do tipo sensorioneural, de grau e configurações variáveis. A análise dos limares auditivos obtidos na avaliação audiológica realizada em 2012 e, posteriormente, em 2015 indicou desencadeamento ou progressão da perda auditiva, com piora de 10dB na maioria das frequências avaliadas, sendo mais expressiva nas frequências agudas. Conclusão Elevada frequência de queixas e alterações auditivas em indivíduos com ES e desencadeamento e/ou progressão da perda auditiva naqueles que realizaram avaliação audiológica sequencial.

Hearing loss in patients with scleroderma: associations with clinical manifestations and capillaroscopy

Systemic sclerosis is a multi-systemic disease with widespread small-vessel vasculopathy and fibrosis. Involvement of the middle and inner ear and hearing loss has been reported as an uncommon manifestation of scleroderma in some studies. In this study, we evaluated hearing problems in scleroderma patients and determined its association with clinical manifestations and capillaroscopy. We evaluated 54 patients with scleroderma referred to Hafez Hospital clinic of scleroderma related to Shiraz University of Medical Science; they fulfilled the LeRoy and ACR/EULAR criteria for scleroderma. Control group consisted of 60 normal individuals. All clinical manifestations, nail fold capillaroscopy, pure tone audiometry, speech reception threshold, and speech audiometry were recorded during evaluation. Subjective hearing loss and objective hearing loss were seen in 10 and 36 patients of the case group (18.5%, 66.7%) and 6 and 10 of the control group (10%, 28.3%) (P values 0.03, < 0.001). Sensorineural hearing loss, abnormal pure tone audiometry, and abnormal speech reception threshold were more common in scleroderma patients compared to the control group (P values of < 0.001, < 0.001, and < 0.001). There was no correlation between objective hearing loss and type of scleroderma, duration of disease, skin score, interstitial lung disease, digital ulcer, gastrointestinal involvement, or nail fold capillaroscopy patterns (all P values > 0.05). In our study, subjective and objective hearing loss were higher in patients with scleroderma compared to the control group and also sensorineural hearing loss, abnormal pure tone audiometry, and abnormal speech reception threshold. There was no correlation between objective hearing loss and clinical manifestations or capillaroscopy findings.

Retrocochlear impairments in systemic sclerosis: a case report study

PURPOSE

To report three cases of patients with Systemic Sclerosis (SSc) and retrocochlear impairments.

METHODS

This is a case report of three individuals with SSc and retrocochlear impairments assisted at a rheumatology outpatient clinic. All individuals underwent Brainstem Auditory Evoked Potential (BAEP) and, when necessary, audiometry.

RESULTS

All three individuals presented sensorineural hearing loss. Although no retrocochlear impairment was identified in the basic audiologic evaluation, the BAEP results were altered.

CONCLUSION

Retrocochlear impairments were present in the individuals under study, both in the absolute latencies and interpeak interval, thereby demanding the attention of rheumatologists and speech-language pathologists to such changes during the monitoring of SSc patients. The results also show a need for epidemiological studies on the theme.

Evaluation of hearing functions in patients with euthyroid Hashimoto's thyroiditis

Sensorineural hearing loss has been reported in various autoimmune diseases. The relationship between Hashimoto's thyroiditis (HT) and the auditory system has not been previously evaluated. In this study, we investigated the effect of euthyroid HT on the hearing ability of adult patients. The study included 30 patients with newly diagnosed euthyroid HT and 30 age- and gender-matched healthy controls. All subjects had a normal otoscopic examination and tympanometry, and they were negative for rheumatoid factor, antinuclear, anti-smooth muscle, antimitochondrial, antineutrophilcytoplasmic, and antigliadin antibodies. Pure tone audiometry exams at 250, 500, 1000, 2000, 4000, 6000, and 8000 Hertz (Hz) were performed in both groups. Thyroid peroxidase antibody and thyroglobulin antibody (anti-Tg) levels were higher in HT group while TSH, free T4, free T3, plasma electrolytes, glucose, lipid profile, vitamin B12, and blood pressure measurements were similar between the two groups. Higher audiometric thresholds and a higher prevalence of hearing loss at 250, 500, and 6000 Hz were detected in the HT patients than in the healthy controls (P < 0.05). Hearing levels at 250 and 500 Hz correlated positively with anti-Tg levels (ρ = 0.650, P = 0.002; ρ = 0.719, P < 0.001, respectively), and this association remained significant in linear regression analysis. Anti-Tg-positive HT patients had higher hearing thresholds at 250 and 500 Hz than anti-Tg-negative HT patients. Hearing thresholds were similar between anti-Tg-negative HT patients and the control subjects. This study demonstrated that hearing functions are impaired in HT patients. Thyroid autoimmunity seems to have an important impact on a decreased hearing ability, particularly at lower frequencies, in this population of patients.

Auditory and vestibular dysfunctions in systemic sclerosis: literature review

Purpose:To describe the prevalence of auditory and vestibular dysfunction in individuals with systemic sclerosis (SS) and the hypotheses to explain these changes.Research strategy:We performed a systematic review without meta-analysis from PubMed, LILACS, Web of Science, SciELO and SCOPUS databases, using a combination of keywords "systemic sclerosis AND balance OR vestibular" and "systemic sclerosis AND hearing OR auditory."Selection criteria:We included articles published in Portuguese, Spanish, or English until December 2011 and reviews, letters, and editorials were excluded. We found 254 articles, out of which 10 were selected.Data analysis:The study design was described, and the characteristics and frequency of the auditory and vestibular dysfunctions in these individuals were listed. Afterwards, we investigated the hypothesis built by the authors to explain the auditory and vestibular dysfunctions in SS.Results:Hearing loss was the most common finding, with prevalence ranging from 20 to 77%, being bilateral sensorineural the most frequent type. It is hypothesized that the hearing impairment in SS is due to vascular changes in the cochlea. The prevalence of vestibular disorders ranged from 11 to 63%, and the most frequent findings were changes in caloric testing, positional nystagmus, impaired oculocephalic response, changes in clinical tests of sensory interaction, and benign paroxysmal positional vertigo.Conclusion:High prevalence of auditory and vestibular dysfunctions in patients with SS was observed. Conducting further research can assist in early identification of these abnormalities, provide resources for professionals who work with these patients, and contribute to improving the quality of life of these individuals.

[Vestibular system in patients with systemic sclerosis]

OBJECTIVES

In systemic sclerosis (SSc) there may occur hearing and balance disorders as a result of the immune-mediated inner ear damage, the etiology being vasculitis and fibrosis. The objective is the vestibular organ evaluation in patients with SSc regarding their prevalence and relationship to duration of the disease and Raynaud phenomenon and also to type and severity of SSc.

MATERIAL

Twenty unselected, consecutive patients with diagnosed SSc, complying with international diagnostic criteria of the American Rheumatism Association (1982), were enrolled into the study. The control group consisted of 26 otologically healthy persons matched to the SSc group for age and sex.

METHODS

In all patients the questionnaire about audiovestibular history, otolaryngological examination, static and dynamic vestibular tests and the electronystsgmography (ENG) were performed. The patients were investigated with the electronystsgmography (ENG) for spontaneous, positional and caloric-induced nystagmus. Also visual ocular-motor tests were performer.

RESULTS

In the anamnesis 65% of patients reported vertigo, 55% - headaches, 50% - tinnitus, 40% - hyperacusis, 40% - hearing loss and 30% - ear fullness. Vertigo, dizziness balance disturbance and uncorrect results of Romberg and Utenberger tests were more frequent in patients with vestibular organ lesion. Abnormalities in vestibular organ in SSc patients were fund in 14 (70%) persons - the central type of lesion - 8 (40%), mixed type in 3 (15%) and peripheral in 3 (15%).

CONCLUSIONS

Ear involvement is frequent in systemic sclerosis and should be taken into consideration during diagnostic and therapeutic procedures.