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Most common cause of sensorineural hearing loss in adults exclusive,vitamin b12 deficiency and pulsatile tinnitus pregnancy,treating sudden hearing loss with steroids online - You Shoud Know

Author: admin | 21.05.2015 | Category: One Ear Ringing

Hearing loss is categorized into two general categories: sensorineural hearing loss and conductive hearing loss. Sensorineural hearing loss refers to the nerves’ loss of sensing ability in one of three areas – the central processing centers of the brain, the inner ear, or the vestibulocochlear nerve (cranial nerve VIII). When someone suffers from prebycusis, there are some solutions to gain back normal levels of hearing.  For example, external hearing aids can be used to stimulate the hairs inside the corti by amplifying the sounds to a higher than normal level. Similar to sensorineural hearing loss, hearing aids are also viable options for dealing with conductive hearing loss. Objective: To determine the frequency and causes of hearing impairment in patients attending the out patient department of Civil Hospital Karachi. Methods: This study was carried out at the ENT department of Civil Hospital Karachi from January 1998 to October 2000. Results: Frequency of conductive hearing loss was 50%, sensorineural hearing loss 20% and mixed hearing loss in 30%. Hearing is the function of the ear which receives the sound by external ear and transmits it to the cochlea in the inner ear via middle ear acoustic impedence matching system.
The task of Cochlea is to analyze the environmental sounds and transmit the result of that analysis to the brain.1 Any pathology in this system will cause deafness or hearing impairment, which may be conductive, sensorineural or mixed. Childhood deafness is the hidden disability and leads to poor education and employments prospects.3 So, Scientific Epidemiological data is the key for preventive strategic planning. The aim of this study was to identify the frequency and causative factors of hearing impairment and deafness in a tertiary care hospital, a major problem affecting the population resulting in communication and psychiatric problems in society.
Six hundred patients of all age groups were randomly selected in the tertiary care teaching hospital i.e. As at the time of the study there was no Ethical Review Board in Dow University, an approval could not be obtained.
Incidence of conductive hearing loss in this study was 50% [300] out of which 65%[195] were unilateral and 35%[105] were bilateral. In conductive type of hearing loss discharging ear remains the most common cause in this study. Hearing impairment is a multi factorial disease and it is very difficult to find out the exact cause. In conductive type of hearing loss Chronic Suppurative Otitis Media (CSOM) is the commonest cause in this study.
In this study, the second common cause of conductive hearing loss was secretary otitis media in 57 cases (19%).
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According to US government statistics from the 60's (National Center for Health Statistics), only 8% of the entire US population has any difficulty with hearing at all.
Examples of conditions that cause sensorineural hearing loss are noise and just living a long time.
If you have a sensorineural hearing loss, your goal should be to find out why, if you can prevent it from getting worse, and if a hearing aid could help you in overcoming the impairments associated with hearing loss. If you have to have a hearing loss, it is best to have a conductive one, as these disorders are often fixable. If you have a conductive hearing loss, your goal should be to find out why, if you can prevent it from getting worse, and if a hearing aid, surgery, or perhaps just wax removal might help you in overcoming the impairments associated with hearing loss. MRI scan of person with central hearing loss, showing high-signal (white spots) in inferior colliculi. Figure 3a: Audiogram (hearing test) typical of early Meniere's disease on the right side (x=left, o=right). Figure 3b: Peaked Audiogram typical of middle-stage Meniere's disease, again on the right side.


Figure 3c: Flat audiogram typical of late-stage Meniere's disease, again on the right side. Dawes P, Fortnum H, Moore DR, Emsley R, Norman P, Cruickshanks K, Davis A, Edmondson-Jones M, McCormack A, Lutman M, Munro K A Population Snapshot of 40- to 69-Year Olds in the United Kingdom.
Leskowitz MJ1, Caruana FF2, Siedlecki B2, Qian ZJ1, Spitzer JB2, Lalwani AK2.Asymmetric hearing loss is common and benign in patients aged 95 years and older. If you manage this site and have a question about why the site is not available, please contact us directly. It has highly specialized structures that respond to fluid-borne vibrations in the cochlea with a shearing vector in the hairs of some cochlear hair cells. The organ was named after the Italian anatomist Marquis Alfonso Giacomo Gaspare Corti (1822-1876), who conducted microscopic research of the mammalian auditory system from 1849 to 1851 at the Koelliker laboratory in Wurzburg (Germany). The most common kind of hearing impairment, sensorineural hearing loss, includes as one major cause the reduction of function in the organ of Corti. Please use newer version of your browser or visit Internet Explorer 6 countdown page for more information. These two categories are further broken down into more detailed categories based on the cause of the hearing loss.
Both external and internal hearing aids are options for those suffering from conductive hearing loss.
Speech is intimately related to hearing as patients with impaired hearing or deafness develop speech problems and the result is poor communication between patient and environment.
General information is given on Paedoaudiology for both parents and professionals.4 It evaluates the size and extent of the problem, which helps in planning for prevention.
This study will highlight this problem so the measure may be taken for prevention and rehabilitation. Sensorineural type of hearing loss was found to be 20% [120] of which 87% [104] were bilateral and 13% [16] were unilateral.
Before the dawn of civilization, the primitive man used such tools of communication as drawing pictures, patterns, a shriek, a yell, a shout etc to draw attention or convey a message. Hearing impairment and deafness are a common problem in our country because 52% of our population lives below the poverty line and only 38% have access to clean water and proper sanitation. However, etiology of hearing loss was estimated as genetic, congenital non-genetic, delayed onset non-genetic and unknown.8 Identification of causative factors, timely eradication of disease and rehabilitation of the effected persons are the milestones of prevention. According to Tantany AC, Hypoxia is the most common cause of sensorineural hearing loss in the perinatal stage.18 Noise is the commonest cause of preventable hearing loss. Causes of childhood deafness in Pukhtoonkhwa Province of Pakistan and the role of consanguinity. Prevalence and etiology of bilateral sensorineural hearing impairment in a Finnish childhood population. The ciliary beat frequency of middle ear mucosa in children with chronic secretory otitis media.
Causes of deafness in British Bangladeshi children: a prevalence twice that of the UK population cannot be accounted for by consanguinity alone. Furthermore, only 3% of the population had difficulty hearing anything other than faint speech. Adults with hearing loss are more likely to be unemployed and earn less wages (Jung and Bhattacharyya, 2012). If we do the math, 90% of 8% of the population with a hearing loss works out to about 7% of the population. Persons with cochlear deficits fail OAE testing, while persons with 8th nerve deficits fail ABR testing. If we do the math again, as only 8% of the population has a hearing loss at all, and 90% of them are sensorineural, this means that only 0.8% of the population has a conductive hearing loss.


Central hearing loss generally isn't helped to a great extent by medication or surgery, but preventing progression is important. Sudden hearing loss as well as Congenital hearing loss may be due to sensorineural, conductive or central mechanisms. Association of hearing loss with decreased employment and income among adults in the United States .Ann Otol Rhinol Laryngol. He developed new coloring techniques in microscopic anatomy, which enabled him to distinguish and describe individual components inside the highly complex cochlea that had previously been unidentified. It is important to take proper precautions when exposed to loud noises to avoid the onset of prebycusis. If the hearing loss is serve, then another solution would be to bring in a homecare specialist who can provide assistance with getting from place to place or managing the daily chores.
Patients of all age groups and both genders were included, who complained of hearing impairment in one or both ears.
In majority of cases of sensorineural hearing loss, prenatal and perinatal factors predominate. Profound hearing impairment is more prevalent in countries where consanguineous marriages are common such as Pakistan.3No definite epidemiological figures are available in Pakistan.
The prevalence of hearing impairment is estimated to about 440 million people world wide, While Griffith K.
In US data between 1988 and 2006, mild or worse unilateral hearing loss (25 db or worse), is reported in 1.8% of adolescents.
If you are older, statistics say that while many of your older associates may have the same problem, it will probably get worse, so you should prepare yourself and do your best to slow down the rate that it gets worse. In 1851 he was the first to describe the core sensory organ in the mammalian cochlea, the organ of Corti. Consanguinity was the most frequent factor in this study in sensorineural type of hearing loss. Prevention of prenatal and postnatal factors can decrease the frequency of sensorineural hearing loss. However, it is estimated that prevalence of the disease is near about 10% of the population in our country.
The criteria of patient selection was hearing loss for 01 month duration or more, in one or both ears, to exclude the psychogenic and malingerer. Hypoxia, low birth weight and kernicterus can be prevented by good obstetric services while infection like mumps, measles, and meningitis can be prevented by immunization.
Infection including intrauterine infection, neonatal and childhood infection is the commonest cause of SNHL. There was greater risk in individuals with work exposure to loud noises, lower socioeconomic background and in ethnic minorities.
Other things that cause conductive hearing losses are fluid in the middle ear, and disorders of the small bones (ossicles) in the middle ear. The shear on the hairs opens ion channels, leading to neural, electrical signaling to the auditory cortex. Patients who complained of hearing impairment and did not have any positive clnical or audiological sign were excluded from the study.



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