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Number of annual VA disability awards for hearing loss and tinnitus. Courtesy of J. Nelson, DOD Hearing Center of Excellence
Context in source publication
Context 1
... Military members, upon completing their military service careers, have access to health care through the Department of Veterans Affairs (VA). Tinnitus and hearing loss are the two most prevalent service-connected disabilities of all compensation recipients, according to the Veterans Benefits Administration (2016), increasing every year ( Fig. 1). While the exact economic cost of auditory system injuries in Veterans in terms of disability and healthcare expenditures is unknown, there are also economic and quality of life losses as individuals retreat into social isolation avoiding the social settings with challenging acoustic ...
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This study investigated and analyzed the current situation of sharp injuries among health care workers (HCWs) in China's Shandong Province.
Methods:
By means of questionnaire survey, the incidence of sharp injuries among HCWs from 36 hospitals in China's Shandong Province in October 2019 was investigated, and the results of this surv...
Introduction:
Occupational injuries are occurrences arising out of, or in the course of, work which results in a fatal or nonfatal injury, e.g., a fall from a height or contact with moving machines. They pose psychological, behavioral, social, vocational, and economic problems. No previous studies have been conducted on the prevalence and associat...
Citations
... Special issues with extensive content on NIHD, organized by the PIHL group, can be found in Otology and Neurotology (see Hammill and Packer, 2016), Hearing Research (see Yankaskas et al., 2017), and The Journal of the Acoustical Society of America (see Le Prell et al., 2019b). Drug-induced hearing loss (DIHL) and chemically induced ototoxic injury overlap with noise in their mechanisms of injury, and chemical exposure in the workplace often occurs in parallel with exposure to loud sound. ...
A series of articles discussing advanced diagnostics that can be used to assess noise injury and associated noise-induced hearing disorders (NIHD) was developed under the umbrella of the United States Department of Defense Hearing Center of Excellence Pharmaceutical Interventions for Hearing Loss working group. The overarching goals of the current series were to provide insight into (1) well-established and more recently developed metrics that are sensitive for detection of cochlear pathology or diagnosis of NIHD, and (2) the tools that are available for characterizing individual noise hazard as personal exposure will vary based on distance to the sound source and placement of hearing protection devices. In addition to discussing the utility of advanced diagnostics in patient care settings, the current articles discuss the selection of outcomes and end points that can be considered for use in clinical trials investigating hearing loss prevention and hearing rehabilitation.
... There are so many young adults falling victim to the recreational noise using personal leisure instruments, as professional musicians, or attending nightclubs or other recreational activities in an atmosphere of damaging sound levels. [17][18][19][20][21] These problems can be controlled by health education to the individuals, musicians, and club managers to take protective measures and avoid using damaging sound levels and making legislation. ...
Objective: To analyze the results of pure tone audiometry in the terms of age, sex, and type of hearing loss attending the hospital with the complaint of hearing loss. Materials and Methods: In this descriptive study, patients attending Benazir Bhutto hospital with complaints of hearing loss were included. The data analysis was done under the terms of age, sex and unilateral/bilateral, and type of loss after pure tone audiometry of every case. The type of hearing loss was determined as conductive, SNHL, and mixed hearing loss.Results: There were 47 patients. Males were 34 (72.34%) outnumbering13females 13(27.66). Adults were44 (93.61%) and children were 3(6.34%). Mixed hearing loss was28 (59.57%)% compared to conductive hearing loss 15 (31.91) and SNHL4 (8.51%). Conclusion: Hearing loss is more common in adults and more prevalent in males. It is mostly bilateral. Mixed hearing loss is more common as compared to conductive and SNHL respectively. Sociacusis is to be taken seriously.
... En el caso de ejercicios en el terreno por ejemplo, las prácticas con explosivos superan los 175 dB (Hecht, Hammill, Calamia, Smalt, & Brungart, 2019), comparable con el ruido percibido en los portaviones (Yankaskas, Hammill, Packer, & Zuo, 2017). Así mismo, se conoce que ciertas labores repetitivas en el campo de la aeronáutica, han producido importantes niveles de hipoacusia en el personal de pilotos, técnicos e ingenieros de vuelo (Carpio & Álvarez, 2017). ...
El ruido es el factor de riesgo más importante al que está
sometido el personal de mantenimiento aeronáutico militar, siendo
necesario verificar si dicho factor se encuentre dentro del límite
establecido en la normativa. En la presente investigación se
realizaron mediciones de ruido en las Bases Aéreas ecuatorianas de
Salinas, Guayaquil, Taura, Manta y Cotopaxi, seguidamente se
contrastaron con los límites de 85 dB para labores operativas y 70 dB
para aquellas que impliquen mayor concentración, posteriormente se
aplicaron los test ANOVA y Tukey, para verificar la relación entre los
niveles de presión sonora LAeqD, el tipo de aeronave y la ubicación o
actividad. Conforme a los resultados obtenidos, en las aeronaves a
turbohélice, supersónicas y transporte se alcanzaron 93 dB, 105 dB y
91 dB respectivamente, principalmente en el despacho de aeronaves.
Si bien el 34.72% de puntos superaron los 70 dB y el 19.44%
sobrepasaron los 85 dB, no obstante, los trabajos respectivos no
implican alto grado de concentración y pueden ser reducidos con
elementos de protección auditivos. De acuerdo con el análisis
estadístico, es posible aseverar que los niveles de ruido dependen del
lugar o actividad de mantenimiento realizado, más no del tipo de
aeronave
... Both can exist at the same time which is difficult to trace and is due to the hair cells loss with spiral ganglion neurons degeneration (4). Center for disease control (CDC) announced hearing loss as third chronic disease in US and second pervasive type hearing loss (5,6). ...
Noise induced hearing loss (NIHL), is common sensory illness especially occur in industrial areas, about 10% population affected annually. NIHL is second occupational and sensori-neural hearing disability all over the world. Since the description between
... Impulses noises, resulting from the sudden release of energy into the atmosphere (explosions, gunshot) or from impacts between objects (machine tools, hammering) are common in industrial activity, construction and military [18][19][20]. Perceptual anomalies such as tinnitus or hyperacusis, and difficulty hearing in noise, often occur and persist after blastinduced damage, even in cases where threshold sensitivity has returned to normal [21][22][23]. Surprisingly, although there is a growing body of knowledge documenting the effects of continuous noise exposure on hearing PTS or TTS [10,11,14,16,[24][25][26][27][28], there is very little literature on the effects of blast-wave and impulse noise-exposure on hearing function. ...
Recent studies demonstrated that reversible continuous noise exposure may induce a temporary threshold shift (TTS) with a permanent degeneration of auditory nerve fibers, although hair cells remain intact. To probe the impact of TTS-inducing impulse noise exposure on hearing, CBA/J Mice were exposed to noise impulses with peak pressures of 145 dB SPL. We found that 30 min after exposure, the noise caused a mean elevation of ABR thresholds of~30 dB and a reduction in DPOAE amplitude. Four weeks later, ABR thresholds and DPOAE amplitude were back to normal in the higher frequency region (8-32 kHz). At lower frequencies, a small degree of PTS remained. Morphological evaluations revealed a disturbance of the stereociliary bundle of outer hair cells, mainly located in the apical regions. On the other hand, the reduced suprathreshold ABR amplitudes remained until 4 weeks later. A loss of synapse numbers was observed 24 h after exposure, with full recovery two weeks later. Transmission electron microscopy revealed morphological changes at the ribbon synapses by two weeks post exposure. In addition, increased levels of oxidative stress were observed immediately after exposure, and maintained for a further 2 weeks. These results clarify the pathology underlying impulse noise-induced sensory dysfunction, and suggest possible links between impulse-noise injury, cochlear cell morphology, metabolic changes, and hidden hearing loss.
... En actividades similares llevadas a cabo por la fuerza pública, policía y bomberos, existen investigaciones como la realizada en Córdoba, España, en la cual, según los criterios de Klockhoff, un total de 207 La hipoacusia o pérdida auditiva es una de las condiciones de salud crónica más común en Norteamérica, superando a la diabetes y el cáncer (Yankaskas et al., 2017). Las Fuerzas Armadas estadounidenses a finales de la Segunda Guerra Mundial iniciaron medidas preventivas en el ámbito global, debido al alto índice de afectaciones en la percepción sonora de sus combatientes luego de la intervención en dicho conflicto, lo cual inclusive, llegó a ser motivo de millonarias demandas luego de operaciones más recientes como las de Irak y Afganistán. ...
La hipoacusia como condición de salud crónica ocupa uno de los primeros lugares en países de Norteamérica, superando a la diabetes y el cáncer, motivo por el cual, desde hace décadas sus Fuerzas Armadas iniciaron estudios pormenorizados con el fin de implementar medidas preventivas adecuadas; no obstante, la aviación militar tiene sus particularidades debido a que las principales fuentes de ruido son sus propias aeronaves. Dicho lo anterior, el objetivo de esta investigación es correlacionar la pérdida auditiva con los factores: edad, actividad o rango, analizando las audiometrías de 73 miembros de la aviación ecuatoriana y verificar su estado actual de acuerdo a los umbrales de audición de frecuencias. Los resultados indican que la mayor cantidad de afectados se presentan en el personal de tropa de sexo masculino de 30 a 44 años de edad. Sin embargo, la variabilidad de los niveles de hipoacusia no evidenció la existencia de una relación directa entre pérdida auditiva y el incremento en la edad, tiempo de servicio, actividad inherente al tipo de aeronave, o rango del individuo, por lo que no se puede aseverar que para el caso de la institución la hipoacusia sea producida exclusivamente por las condiciones laborales y, más bien, puede ser producto de antecedentes clínicos de la persona. En consecuencia, se evidencia un eficaz programa preventivo y medidas de mitigación adecuadas, referentes a la seguridad y salud ocupacional. Aunque es imprescindible realizar estudios más detallados, siendo más enfáticos en las bases aéreas donde se despliegan aeronaves de combate y de ala rotatoria.
... Concentration, emotional stability, alertness, and adequate sleep may all in uence the ability of Service members to carry out their assigned tasks, especially military man. One might therefore speculate that bothersome tinnitus may complicate the e ciency of operational missions 14 . ...
Background: To analyze data from the tinnitus study that addresses the factors contributing to the acute exacerbation of chronic subjective tinnitus, and providing a comprehensive landscape of multiple factors action patterns on acute exacerbation of tinnitus.
Methods: It reports data from patients with chronic subjective tinnitus, enabling a direct comparison of results between the stable stage of chronic tinnitus and the acute exacerbation of chronic tinnitus samples. Participants had completed comprehensive audiometric testing and numerous questionnaires.
Results: Results are presented from n=602 participants across the two sites, including 204 patients in the stable stage of tinnitus and 398 patients in acute exacerbation of tinnitus. The data reveal that: ①Acute exacerbation of chronic tinnitus is affected by many factors, among them, aggravated hearing loss, fatigue, stress, disturbed sleep, negative emotion, upper respiratory tract infection, noise exposure, and abruptly changed barometric pressure may aggravate the tinnitus; ②Smoking, drink, and course of tinnitus are not risked factors for acute exacerbation of chronic tinnitus; ③Comparison of the importance of the four factors induce acute exacerbation of chronic tinnitus, fatigue and stress are the most important, then, in turn, negative emotions and sleep disorders.
Conclusions: ①There were many incentives for acute exacerbation of chronic tinnitus and multiple causes coexist under normal conditions. ②The prevention and prognosis management of acute exacerbation of chronic tinnitus should be approached from multiple dimensions, which includes biological, social support, patient psychology.
Trial registration: Not applicable
... The frequencies of 3, 4, and 6 kHz are the most affected by noise [Thurston, 2013;Tikka et al., 2017;Yankaskas et al., 2017]. This study evaluated the workers in the first 2 years of exposure. ...
Introduction:
Noise-induced hearing loss is the most preventable cause of auditory impairment. Periodic audiometric evaluations are essential to monitor the hearing health of noise-exposed workers.
Objective:
To compare the evolution of audiometric thresholds in the initial three evaluations at frequencies of 3, 4, and 6 kHz in groups of workers exposed or not to noise.
Methods:
In this historical cohort study, audiometric evaluations were obtained from male workers between 18 and 40 years of age at six different metallurgical companies in Brazil. The workers were separated into noise-exposed and non-noise-exposed groups. The mean thresholds for 3, 4, and 6 kHz were calculated for both ears at baseline and the first and second periodic evaluations. The non-parametric Wilcoxon test was used for statistical analysis.
Results:
A total of 1,382 metallurgical workers were evaluated (1,199 noise-exposed and 183 non-noise-exposed). There was a significant difference between baseline and the first periodic evaluation (right ear - effect size = 0.62; p = 0.0030 and left ear - effect size = 0.74; p = 0.0063) and between baseline and the second periodic evaluation (right ear - effect size = 0.85; p = 0.004 and left ear - effect size = 0.96; p = 0.0002). In the non-noise-exposed group, there was no difference between baseline and the first periodic evaluation (right ear - effect size = 0.18; p = 0.2703 and left ear - effect size = 0.12; p = 0.7907) and between baseline and the second periodic evaluation (right ear - effect size = 0.29; p = 0.4475 and left ear - effect size = 0.41; p = 0.6381).
Conclusion:
In noise-exposed workers, there was a significant worsening of audiometric thresholds between baseline and the initial periodic evaluation, but there was no difference between the two post-baseline evaluations. This shows that noise exposure can quickly affect hearing, despite protective measures.
... The second HCE-sponsored series of articles (Hearing Research, Vol. 349, 2018) included 23 articles in two topic areas: impact of noise in the military and biological mechanisms of NIHL (for an introduction to the special issue, see Yankaskas et al., 2017b). The issues of impulsive (Davis and Clavier, 2017) and long-term (Davis, 2017) noise were briefly defined, and noise-induced injury was described (Caspary and Llano, 2017;Chen et al., 2017;Kurabi et al., 2017). ...
Introductory article for the Journal of the Acoustical Society America special issue on Noise-Induced Hearing Loss: Translating Risk from Animal Models to Real-World Environments
... An important observation is that the exposures sufficient to generate TTS and PTS are lower overall in rodents than NHPs and humans (see Table I; also discussed in Dobie and Humes, 2017;Valero et al., 2017;Yankaskas et al., 2017). The range of SPLs that cause cochlear damage in mice, ranging from synaptopathy to hair cell loss, is relatively small when compared to NHPs and humans. ...
Exposure to prolonged or high intensity noise increases the risk for permanent hearing impairment. Over several decades, researchers characterized the nature of harmful noise exposures and worked to establish guidelines for effective protection. Recent laboratory studies, primarily conducted in rodent models, indicate that the auditory system may be more vulnerable to noise-induced hearing loss (NIHL) than previously thought, driving renewed inquiries into the harmful effects of noise in humans. To bridge the translational gaps between rodents and humans, nonhuman primates (NHPs) may serve as key animal models. The phylogenetic proximity of NHPs to humans underlies tremendous similarity in many features of the auditory system (genomic, anatomical, physiological, behavioral), all of which are important considerations in the assessment and treatment of NIHL. This review summarizes the literature pertaining to NHPs as models of hearing and noise-induced hearing loss, discusses factors relevant to the translation of diagnostics and therapeutics from animals to humans, and concludes with some of the practical considerations involved in conducting NHP research.
