{"title":"Noise Exposure","authors":"A. Behar","doi":"10.5772/intechopen.95997","DOIUrl":"https://doi.org/10.5772/intechopen.95997","url":null,"abstract":"Noise exposure is a basic concept used to assess the risk of noise induced hearing loss in the workplace. It is very important, since loud noise is omnipresent in almost all human activity, especially in industry, construction, mining and transportation. The question to answer is how to determine the risk of a person performing in an environment where the noise levels, duration and frequency content change with time. The answer is obtained by measuring his noise exposure. Although the measurement itself is not complex or difficult, a proper knowledge of what exactly is the noise exposure and how to deal with the measurement result in fundamental to avoid getting wrong conclusions.","PeriodicalId":162418,"journal":{"name":"Hearing Loss - From Multidisciplinary Teamwork to Public Health","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128556495","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Alejandra Itzel Contreras Rivas, Gaston Eduardo Estudillo Jiménez, Edgar Flores Molina, Patricio Guerra Ulloa
{"title":"Neonatal Hearing Screening","authors":"Alejandra Itzel Contreras Rivas, Gaston Eduardo Estudillo Jiménez, Edgar Flores Molina, Patricio Guerra Ulloa","doi":"10.5772/intechopen.95942","DOIUrl":"https://doi.org/10.5772/intechopen.95942","url":null,"abstract":"Around the world 10 million people have some type or degree of auditory problem, of them, between 200,000 and 400,000 have total deafness. Estimating that a large population presents this problem from birth (61%), with an incidence of 1 to 3 of every 1000 newborns. For this reason, early implementation through the neonatal auditory sieve allows timely detection to respond early to the hearing impairment of the newborn, as the ideal age to carry out rehabilitation with the help of an auditory auxiliary and initiate Language therapy is at six months of age. Most of the international guides for the integral attention to persons with auditory disability it indicates that all newborns should be screened Auditory before his hospital discharge. The prevalence of auditory disturbances in our environment is 0.3%, a proportion that places us above national and global statistics, so it is very important to screen all newborns including those who do not have Apparent risk factors in order to establish the appropriate diagnosis, the necessary treatment and thus avoid delays in neurodevelopment.","PeriodicalId":162418,"journal":{"name":"Hearing Loss - From Multidisciplinary Teamwork to Public Health","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133466278","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Variation of Sensitivity of a MEMS Capacitive Accelerometer Based Microphone with Suspension System Topology","authors":"A. Dwivedi, P. Asthana, G. Khanna, T. Chaudhary","doi":"10.5772/INTECHOPEN.97185","DOIUrl":"https://doi.org/10.5772/INTECHOPEN.97185","url":null,"abstract":"The present research seeks to improve a highly sensitive MEMS capacitive accelerometer as a probable completely implantable hearing aid microphone. The research analyses the effect of different suspension system topologies on accelerometer efficiency. The topology of folded beam suspension is considered to be the most suitable for the proposed system. The design factors such as weight, height and resonant frequency are considered to make the accelerometer an effective biomedical system which can be completely implanted with COMSOL MULTIPHYSICS 4.2 the optimized system is simulated and validated. The accelerometer occupies 1mm2 of sensing area and achieves a nominal capacitance of 5.30 pF and an optimized capacitive sensitivity of 6.89fF.","PeriodicalId":162418,"journal":{"name":"Hearing Loss - From Multidisciplinary Teamwork to Public Health","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124113179","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Cost-Effective Design of Amplifiers for Hearing Aides Using Nullors for Response Matching","authors":"R. Hashemian","doi":"10.5772/INTECHOPEN.97842","DOIUrl":"https://doi.org/10.5772/INTECHOPEN.97842","url":null,"abstract":"This chapter starts reviewing Fixator-Norator Pairs (FNP) as an effective tool used to design analog amplifiers for a prescribed bandwidth and frequency profile. Among number of cases and applications, designing for hearing aides are particularly important, where the hearing frequency profiles, known as audiograms, are changing from person to person, and also for a person by the age. The design is mainly focused on front-end or stand-alone amplifiers. In case of a front-end the response from the amplifier can be digitized, properly controlled and adjusted to fit the digital application. Here is how the design proceed. For a given audiogram, an Audiogram Generator Circuit (AGC) is initially constructed. This AGC, usually a complete passive circuit, produces a frequency response that closely matches with the audiogram, obtained from a hearing impaired patient. The AGC is then embedded in an amplifier circuit where a fixator is placed at its output port, “forcing” the amplifier to generate the desired output frequency response profile. A flat band frequency response, for example, compensates the hearing losses and provides a uniform hearing to the patient in the entire audio bandwidth. The amplifier can be further enhanced to perform other requirements, for example, to cancel undesirable noises in certain frequencies or to magnify the voice in critical frequencies for clarity. Another alternative design methodology is also introduced in this chapter, which uses the negative feedback technique.","PeriodicalId":162418,"journal":{"name":"Hearing Loss - From Multidisciplinary Teamwork to Public Health","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126257511","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Childhood Hearing Loss in Developing Countries: From Multidisciplinary Team Work to Public Health","authors":"F. M. Banda, B. Nakstad","doi":"10.5772/INTECHOPEN.97659","DOIUrl":"https://doi.org/10.5772/INTECHOPEN.97659","url":null,"abstract":"This chapter will highlight the common causes of hearing loss in children and emphasize on the fact that most of the hearing loss is due to causes that are preventable. We know that hearing loss in childhood not only impacts on the child’s learning and social interaction with the child’s peers and society, but also has economic implications when the child grows into an adult. Public health awareness is therefore paramount in preventing a large chunk of the hearing gloss and therefore greatly contributes to making sure that the child grows into a productive citizen of the society that the child grows or lives in.","PeriodicalId":162418,"journal":{"name":"Hearing Loss - From Multidisciplinary Teamwork to Public Health","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131699667","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Brainstem Auditory Evoked Potentials in Type 2 Diabetes Mellitus","authors":"Rajesh Paluru, D. Negi","doi":"10.5772/INTECHOPEN.97469","DOIUrl":"https://doi.org/10.5772/INTECHOPEN.97469","url":null,"abstract":"Diabetes mellitus is a group of metabolic diseases characterized by hyperglycaemia resulting from defects in insulin secretion, insulin action or both. Diabetes affects many systems and produces complications in the human body, in those complications one is diabetic central neuropathy. The pathological mechanisms involved in the central neuropathy include chronic hyperglycaemia, hypoglycaemic episodes, angiopathy and blood–brain barrier dysfunction. Diabetic central neuropathy is detected by using of brainstem auditory evoked response (BAER), Visual evoked potential (VEP), somatosensory evoked potential (SEP). These abnormalities are present at different levels and may appear before appearance of overt complications. The central nervous system abnormalities are more frequent in patients with peripheral neuropathy but evoked potentials can be abnormal even in patients without neuropathy. The BAER is a physiological recording technique to study the auditory pathway and does not require subject’s attention and generates waves during the first 10 ms after the sound stimulus. Each BAER wave is generated by the activation of a sub-cortical component of the auditory pathway with 90% sensitivity and 70–90% of specificity.","PeriodicalId":162418,"journal":{"name":"Hearing Loss - From Multidisciplinary Teamwork to Public Health","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125059544","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
P. Brock, K. Rajput, L. Edwards, A. Meijer, P. Simpkin, A. E. Hoetink, M. Kruger, M. Sullivan, M. M. Heuvel‐Eibrink
{"title":"Cisplatin Ototoxicity in Children","authors":"P. Brock, K. Rajput, L. Edwards, A. Meijer, P. Simpkin, A. E. Hoetink, M. Kruger, M. Sullivan, M. M. Heuvel‐Eibrink","doi":"10.5772/INTECHOPEN.96744","DOIUrl":"https://doi.org/10.5772/INTECHOPEN.96744","url":null,"abstract":"Cisplatin is a highly effective chemotherapy medicine used in the treatment of many childhood cancers. Like all medications, cisplatin has many side effects and as always the treatment of cancer in children is a balance between the risks of the medications used and their potential benefits. While many side effects of cisplatin chemotherapy are reversible, one major side effect is permanent and irreversible hearing loss (ototoxicity) in both ears which may worsen with time. The severity of cisplatin-related ototoxicity is associated with age and the cumulative dose received: the younger the child and the higher the total dose, the more severe the hearing loss may be. The spectrum of hearing loss varies from mild to moderate high tone hearing loss, to profound loss across the hearing range and permanent deafness. In addition to hearing loss, some children, especially adolescents, also experience tinnitus and vertigo. Cisplatin ototoxicity is one of most important of the many long-term effects experienced by children who are cured of their cancer. The burden of this toxicity may be compounded by other long-term health issues that emerge with time. This chapter will focus on cisplatin-induced hearing loss, its mechanisms, its health impact on the young person and ways to mitigate or reduce the severity of ototoxicity. This chapter has been written by a multi-disciplinary team including paediatric oncologists, audiologists, a psychologist, a health scientist and a parent of a child growing up with high frequency hearing loss.","PeriodicalId":162418,"journal":{"name":"Hearing Loss - From Multidisciplinary Teamwork to Public Health","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126957294","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Occupational Hearing Loss","authors":"J. Kwon, Jiho Lee","doi":"10.5772/INTECHOPEN.97109","DOIUrl":"https://doi.org/10.5772/INTECHOPEN.97109","url":null,"abstract":"Occupational hearing loss received attention after the Industrial Revolution and through World Wars I and II. It currently accounts for the largest portion of occupational diseases, and a third of all hearing loss is due to noise. Occupational hearing losses include noise-induced hearing loss (NIHL), hearing loss caused by ototoxic substances and hearing loss caused by their complex interactions. In the case of NIHL, even when exposed to the same noise, the degree of hearing damage and recovery may vary from person to person, and also be affected by other noise in daily life. Various organic solvents and some heavy metals exposed in workplace are important causes of ototoxic hearing loss, and they are known to have additive or synergistic effects when accompanied by noise. In Korea, NIHL is the most common occupational disease and has been increasing continuously since the 1990s. The number of claims for compensation has also been increasing steadily. However, the developed country including Korea almost never considered the effects of chemicals on the diagnosis and compensation for hearing loss workers. Occupational hearing loss can be prevented through hearing conservation programs. In this chapter, we will introduce the scientific basis of noise induced hearing loss, the impacts of ototoxic substance and co-existence impact on hearing loss.","PeriodicalId":162418,"journal":{"name":"Hearing Loss - From Multidisciplinary Teamwork to Public Health","volume":"204 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117258224","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Hearing Loss in Chronic Kidney Disease","authors":"S. Antwi, Mohammed Duah Issahalq","doi":"10.5772/INTECHOPEN.96572","DOIUrl":"https://doi.org/10.5772/INTECHOPEN.96572","url":null,"abstract":"Chronic kidney disease (CKD) is assuming public health significance worldwide largely driven by the surge in diabetes mellitus, hypertension and obesity. CKD patients, particularly those from resource restraint regions of the world, face huge challenge in terms of accessibility and affordability to care. Besides these challenges in care, several other co-morbidities often exist among these patients in addition to the primary disease like diabetes and hypertension. Yet, these “subtle” co-morbidities are often overlooked by Caregivers. Hearing loss is one of such co-morbidities CKD patients face but it is often overlooked. The situation is worse among children who often cannot express themselves. The etiology of hearing loss among CKD patients are multifactorial. It is hoped that this neglected aspect of care for patients with chronic kidney disease will receive the needed attention for holistic care of the CKD patient.","PeriodicalId":162418,"journal":{"name":"Hearing Loss - From Multidisciplinary Teamwork to Public Health","volume":"62 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132432758","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Noise Induced Hearing Loss: A Case Study from a Speech-Language Pathologist’s Perspective","authors":"A. Brice","doi":"10.5772/INTECHOPEN.96332","DOIUrl":"https://doi.org/10.5772/INTECHOPEN.96332","url":null,"abstract":"Hearing loss is very common in the United States and the most widespread disability in the U.S. Hearing loss is the third most chronic health condition in the U.S. Noise induced hearing loss (NIHL) results from damaging external noise. This injury leads to temporarily or permanently affecting sensitive inner ear structures (e.g., cochlea, organ of Corti, and hair cells). NIHL can result from a single high-level noise exposure or repeated exposures to excessively loud noises [i.e., typically 85 dBA or greater, (A weighted decibel)]. Damage to the inner ear can also result from aging (i.e., presbycusis). This case study documents the hearing loss of an otherwise healthy 21-year-old, male individual and his progressive moderate-to-severe sensorineural hearing loss over a period of 41 years. His history will be reported along with his perspective as a speech-language pathologist and speech scientist. The individual with hearing loss has adapted to wearing hearing aids over the last five years. Issues that have occurred affecting comprehension along with compensatory strategies that assisted listening and comprehension will be discussed.","PeriodicalId":162418,"journal":{"name":"Hearing Loss - From Multidisciplinary Teamwork to Public Health","volume":"103 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129301411","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}