Hearing thresholds in patients with drug-resistant tuberculosis: baseline audiogram configurations and associations / Limiares auditivos em pacientes com tuberculose resistente: configurações do audiograma basal e associações

ABSTRACT Objective: To use baseline audiogram parameters in order to ascertain whether drug-resistant tuberculosis (DR-TB) has effects on hearing, as well as to describe the configurations of the audiograms and to determine whether there are parameters that can be associated with those configurations. Methods: This was a prospective study involving patients diagnosed with DR-TB at a tuberculosis treatment center in the state of Ogun, in Nigeria. The patients included in the study were submitted to pure tone audiometry at baseline (within two weeks after treatment initiation). For comparative analyses, data regarding demographic and clinical characteristics were collected from the medical records of the patients. Results: The final sample comprised 132 patients. The mean age of the patients was 34.5 ± 12.6 years (range, 8-82 years), and the male:female ratio was 2:1. Of the 132 patients, 103 (78.0%) resided in neighboring states, 125 (94.7%) had previously experienced antituberculosis treatment failure, and 18 (13.6%) were retroviral-positive. Normal audiograms were found in 12 patients (9.1%), whereas sensorineural hearing loss was identified in 104 (78.8%), the two most common configurations being ascending, in 54 (40.9%), and sloping, in 26 (19.7%). Pure-tone averages at low frequencies (0.25-1.0 kHz) and high frequencies (2.0-8.0 kHz) were 33.0 dB and 40.0 dB, respectively. Regarding the degree of hearing loss in the better ear, 36 patients (27.3%) were classified as having normal hearing and 67 (50.8%) were classified as having mild hearing loss (26-40 dB), whereas 29 (21.9%) showed moderate or severe hearing loss. Among the variables studied (age, gender, retroviral status, previous treatment outcome, and weight at admission), only male gender was associated with audiometric configurations. Conclusions: In this sample of patients with DR-TB, most presented with bilateral, mild, suboptimal sensorineural hearing loss, and ascending/sloping audiometric configurations were associated with male gender.

RESUMO Objetivo: Utilizar parâmetros do audiograma basal para verificar se a tuberculose resistente (TB-R) tem efeitos na audição, descrever as configurações dos audiogramas e determinar se há parâmetros que possam ser associados a essas configurações. Métodos: Estudo prospectivo com pacientes diagnosticados com TB-R em um centro de tratamento de tuberculose no estado de Ogun, Nigéria. Os pacientes incluídos no estudo foram submetidos à audiometria de tons puros em até duas semanas após o início do tratamento (audiometria basal). Características demográficas e clínicas foram coletadas dos prontuários médicos dos pacientes para análises comparativas. Resultados: A amostra final envolveu 132 pacientes. A média de idade dos pacientes foi de 34,5 ± 12,6 anos (variação, 8-82 anos), e a razão homem:mulher foi de 2:1. A maioria dos pacientes (n = 103; 78,0%) residia nos estados vizinhos e tinha história de falha de tratamento antituberculose (n = 125; 94.7%); 18 (13.6%) apresentavam status retroviral positivo. Doze pacientes (9,1%) apresentaram audiogramas normais, e 104 (78,8%) apresentaram perda auditiva neurossensorial, sendo as configurações mais comuns do tipo ascendente, em 54 (40,9%), e descendente, em 26 (19,7%). As médias de tons puros em frequências baixas (0,25-1,0 kHz) e altas (2,0-8,0 kHz) foram de 33,0 dB e 40,0 dB, respectivamente. Quanto ao grau de perda auditiva no melhor ouvido, 36 pacientes (27,3%) apresentaram audição normal, e 67 (50,8%) apresentaram perda auditiva leve (26-40 dB), enquanto 29 (21,9%) mostraram perda auditiva moderada ou grave. Entre as variáveis estudadas (idade, gênero, status retroviral, desfecho de tratamento anterior e peso na admissão), somente o gênero masculino foi associado às configurações audiométricas. Conclusões: Nesta amostra de pacientes com TB-R, a maioria apresentou perda auditiva neurossensorial leve e subótima bilateralmente, com configurações audiométricas ascendentes/descendentes associadas ao gênero masculino.

Prevalence and Correlates for Tinnitus among Elderly Subjects: A Community Study.

Aims: To determine the prevalence, and explore clinical correlates for tinnitus among elderly subjects. Study Design: Cross sectional community-based analytical study. Place and Duration of Study: Study was conducted in Sagamu community for a period of six weeks between 1st April and 18th May, 2015. Methodology: Consenting elderly subject (aged ≥ 60 years), who lived in the communities for a minimum of five years continuously were selected by multistage stratified sampling technique. Estimated sample size was 216 subjects. Interviewer administered questionnaire was used to obtain information on socio-demographic, otological and other systemic diseases parameters. The main outcome measure was Tinnitus present or absent. The data obtained was subjected to descriptive, uni and multivariate logistic regression analyses, LRA. Results: 212 elderly subjects completed the study. Prevalence of tinnitus according to socio-demographic characters revealed significant differences between age groups (p= 0.016), sex (p=0.010), level of education (p=0.005) and family settings (p=0.001). Univariate analyses revealed significant differences in previous ear discharge (p=0.019), previous ear syringing (p<0.001), previous loss of consciousness (p=0.004), observed hearing loss (p<0.001), confirmed hearing loss (p<0.001), exposure to noise (p<0.001), tendency to depression (p<0.001), and osteoarthritis of knee joint (p=0.045). Multivariate adjusted LRA confirmed previous ear syringing for wax impaction OR=6.863, 95% CI, 1.043-45.149 (p=0.045), observed hearing loss OR= 2.755, 95% CI, 1.116-6.800 (p=0.028), exposure to noise OR=50.213, 95% CI=5.358-70.542 (p=0.001) and tendency to depression OR=2.600, 95% CI, 1.000-6.759, (p=0.049) as clinical correlates for tinnitus among elderly subjects. Conclusions: There is high prevalence of tinnitus, with clinical correlates being otological and audiological parameters. Noise regulation and need for proper care for elderly at the community level were emphasized.

Vestibulo-otologic Events in Drug-resistant Tuberculosis Patients on Medications.

Aims: This study aims to document the onset, types and factors associated with vestibulo-otologic (VO) events among patients on treatment for drug resistant Tuberculosis (DRTb). Study Design: This is a prospective study of patients with drug resistant Tuberculosis who were admitted for the intensive phase of treatment with injectable medications. Place and Duration of Study: The study was carried out at drug resistant Tuberculosis (DRTb) centre, Sacred Heart Hospital, Lantoro, Abeokuta, Nigeria between October 2013 and December 2014. Methodology: Patients with complaints referable to VO effects of medications were recruited into the study. Clinical evaluation included the type, onset and duration of the vestibular or otologic events. Further information were retrieved from the patients case note records which included age, sex, retroviral status, weight on admission and height, from where the body mass index (BMI) was calculated. Data analyses were performed using SPSS version 20. Results: A total of 121 patients comprising of 80 male and 41 female patients. Modal age group distribution for all patients was the group 21-40 years (72.7%), while the mean age ±SD was 32.9±13.7 years. The duration of treatment ranged from 12 to 20 weeks, mean ±SD= 14±3.4 weeks. VO events occurred in 40.5%, vestibular events alone were in 27.3% while otologic events alone occurred in 33.1%. The VO events were noticed between 6-19 weeks of treatment (mean ±SD= 11.1±4.7 weeks). Dizziness/imbalance were the most common vestibular while tinnitus was the most common otologic event. Among the patients with VO events, 13/46=28.3%, had repeat pure tone audiometry, and 7 (15.2%) met audiometric criteria for ototoxicity. Conclusion: Vestibulo-otologic events were common among DRTb patients in Nigeria. The major complaints started around 11 weeks on medication. Factors associated with the VO events were female gender, being underweight and retroviral positive.

Middle ear impedance studies in elderly patients implications on age-related hearing loss / Estudos de impedância da orelha média em pacientes idosos: implicações na perda auditiva relacionada à idade

INTRODUCTION: Controversies arise with respect to functioning of the middle ear over time. OBJECTIVE: To assess changes in middle ear impedance that may be related to aging, and/or if there was an association of these changes with those of the inner ear in the elderly patients. METHODS: Cross-sectional, comparative study of elderly patients managed in ear, nose and throat clinics. A structured questionnaire was administered to obtain clinical information. Pure tone audiometry, tympanometry, and acoustic reflexes were performed. Comparative analyses were performed to detect intergroup differences between clinico-audiometric findings and middle ear measures, viz. tympanograms and acoustic reflexes. RESULTS: One hundred and three elderly patients participated in the study; 52.4% were male, averagely 70.0 ± 6.3 years old, age-related hearing loss in 59.2%, abnormal tympanograms in 39.3%, absent acoustic reflex in 37.9%. There was no association between age and gender in patients with abnormal tympanograms and absent acoustic reflex. Significantly more patients with different forms and grades of age-related hearing loss had abnormal tympanometry and absent acoustic reflex. CONCLUSION: Some abnormalities were observed in the impedance audiometric measures of elderly patients, which were significantly associated with parameters connected to age-related hearing loss. .

INTRODUÇÃO: Existem controvérsias no que se refere às alterações funcionais da orelha média com o passar dos anos. OBJETIVO: Avaliar as mudanças na impedância da orelha média que podem estar relacionadas ao envelhecimento, bem como qualquer associação dessas alterações com as que ocorrem na orelha interna. MÉTODO: Estudo prospectivo comparativo de pacientes idosos atendidos em ambulatórios espe-cializados em otorrinolaringologia e aplicação de questionário estruturado para obtenção de informações clínicas. Foram realizadas audiometria de tons puros, timpanometria e reflexos acústicos e análise comparativa para detectar as diferenças intergrupos entre os achados clínico-audiométricos. RESULTADOS: Participaram do estudo 103 pacientes idosos: 52,4% do gênero masculino; idade de70 ± 63 anos; perda auditiva relacionada à idade detectada em 59,2%; timpanograma anormal em 39,3%; e reflexo acústico ausente em 37,9%. Não foi encontrada associação entre idade e gênero em pacientes com timpanograma anormal e reflexo acústico ausente. Um número significantemente maior de pacientes com diferentes graus e configurações de perda auditiva relacionada à idade apresentou timpanometria anormal e reflexo acústico ausente. CONCLUSÃO: Algumas anormalidades foram observadas em medidas de impedância audiométrica em pacientes idosos, que foram significantemente associados com os parâmetros ligados à perda auditiva relacionada à idade. .

Fatores de risco de apneia obstrutiva do sono entre pacientes ambulatoriais nigerianos / Risk factors of obstructive sleep apnea among nigerian outpatients

Apneia obstrutiva do sono (SAOS) é uma condição médica com consequências adversas. OBJETIVOS: Descrever os fatores de risco associados com OSA em adultos atendidos em uma clínica especializada ambulatorial. Forma de estudo: Estudo clínico prospectivo, entre pacientes ambulatoriais adultos em uma clínica especializada. MÉTODO: Os dados foram coletados por meio de questionário incorporando o BQ e os pacientes foram divididos em riscos de baixa e alta da OSA. Os fatores de risco associados com OSA na análise univariada foram submetidas a um modelo multivariado de regressão logística binária. Odds ratio ajustados com intervalo de confiança de 95% foram calculados para as seguintes variáveis independentes. RESULTADOS: Cento e nove e cinco pacientes participaram do estudo (sexo masculino 56,4%; idade 43,5 ± 15,6 anos; não roncadores habituais 81,5%, risco de alta OSA 17,4%, IMC 24,1 ± 4,6 kg/m²; obesos 12,9%). Seis fatores, incluindo o estado civil e a pressão arterial, foram significativamente associados com SAOS usando análise bivariada, no entanto, idade, horas de trabalho, tabagismo e IMC permaneceu preditivo da OSA na análise de regressão logística. CONCLUSÕES: SAOS é comum entre pacientes nigerianos, pode ser sub-reconhecida e está associada a fatores de risco que são passíveis de estratégias preventivas.

Obstructive sleep apnea (OSA) is a medical condition with adverse consequences. OSA is credited to be a sleep disorder that disproportionately affects blacks. The Berlin Questionnaire (BQ) is a screening questionnaire for OSA. OBJECTIVE: To describe the risk factors associated with OSA among adults attending an out-patient specialist clinic. Study design: Prospective, clinical study including adult outpatients attending a specialist clinic. METHOD: Data was collected using a questionnaire incorporating the BQ and patients were divided into low and high risks of OSA. The risk factors associated with OSA in the univariate analyses were subjected to a multivariate binary logistic regression model. Adjusted odds ratios with 95% confidence intervals were calculated for these independent variables. RESULTS: One hundred and ninety five patients participated in the study (Males 56.4%; Age 43.5 ± 15.6 years; Non-habitual snorers 81.5%; High risk OSA 17.4%; BMI 24.1 ± 4.6 kg/m²; Obese 12.9%). Six factors including marital status and blood pressure were significantly associated with OSA using bivariate analysis nevertheless age, hours at work, smoking status and BMI remained predictive of OSA on logistic regression analysis. CONCLUSIONS: OSA is common among Nigerian outpatients, may be under-recognized and is associated with risk factors that are amenable to preventive strategies.