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Acute Sensorineural Hearing Loss by Acute Acoustic Trauma

Sudden Deafness by Acute Acoustic Trauma


Presentation

  • Diagnosis is based on the clinical presentation, a sensorineural defect detected with tuning fork tests and on hearing tests. ISSHL should be treated as a medical emergency and an urgent consultation of an otolaryngologist is indicated.[books.google.com]
  • ABSTRACT: Primary care providers should obtain hearing testing whenever a patient presents with a sudden change in hearing.[consultant360.com]
  • Tinnitus is present in the ear to a variable degree, and the hearing loss sometimes is preceded by the onset of tinnitus. Vertigo or disequilibrium is present to a variable degree in approximately 40% of patients.[otologytextbook.net]
  • Patients can delay seeking help, and can present to a range of specialties when seeking treatment.[audiologyonline.com]
  • Case Presentation A 67 years old female patient, who had hypertension and type II diabetes mellitus for a long time, presented to the emergency clinic with a three weeks history of exertional chest pain.[omicsonline.org]
Surgical Procedure
  • In some cases, if related vertigo is not medically controlled, surgical procedures may be used to treat vertigo.[reverehealth.com]
  • If the vertigo is not medically controlled, then various surgical procedures are used to eliminate the vertigo.[hearingloss.org]
  • This is known as Conductive Hearing Loss, which we'll cover later, and is often treatable via surgical procedure.[tinnituspill.org]
Sneezing
  • Blast injuries, diving, flights in unpressurised aircraft, and even raised intracranial pressure during sneezing have also been suggested as caused of SSNHL loss and commonly vertigo.[audiologyonline.com]
Decompression Sickness
  • In addition to explaining the basic principles of HBO therapy, and its application in carbon monoxide poisoning and decompression sickness, the textbook looks objectively and critically at its use in numerous other areas, such as stroke, neurological[books.google.com]
  • SSNHL commonly occurs with head injury and rarely after whiplash, and diving decompression sickness.[audiologyonline.com]
  • sickness Herpes-simplex I Meniere’s Small vessel disease Leukemia Otologic surgery HIV Polyarteritis nodosa Vascular disease associated with mitochondriopathy Meningeal carcinomatosis Ototoxicity Lassa Fever Relapsing polychondritis Vertebrobasilar insufficiency[belmarrahealth.com]
Sudden Hearing Loss
  • What is sudden hearing loss? As the name implies, sudden hearing loss can occur suddenly or develop within a few hours.[hear.com]
  • Obvious event: Some causes of sudden hearing loss are readily apparent. Blunt head trauma with temporal bone fracture or severe concussion involving the cochlea can cause sudden hearing loss.[merckmanuals.com]
  • This is more common with moderate to severe sudden hearing losses. One study revealed that normal or complete recovery occurred in 45% of the people with sudden hearing loss.[hearinglosshelp.com]
  • Patients with sudden hearing loss postoperatively should be identified as soon as possible as the recovery rate had been shown to be higher in those who presented early.[pmj.bmj.com]
  • A fourth related cause is excitotoxicity, one of the main components of acoustic trauma, which is also involved in ototoxicity and some sudden hearing losses.[cochlea.eu]
Hearing Impairment
  • This kind of hearing impairment is often temporary. After some time the trauma will stop. Permanent acoustic trauma If the acoustic trauma continues, it will typically lead to hearing impairment within a relatively narrow frequency around 4 kHz.[hear-it.org]
  • Stem Cell Treatment Stem Cells as a form of treatment for hearing impairment is a relatively new concept.[tinnituspill.org]
  • Screening for Hearing Impairment The U.S.[aafp.org]
  • Sensorineural hearing loss (SNHL) or nerve deafness can be defined as a type of hearing impairment that is caused due to dysfunction of the sensory receptors present in the inner ear.[news-medical.net]
  • impairment prevalence ratio of 1.1% among the US population (Morbidity and Mortality weekly report, 2011).[acousia.com]
Hearing Impairment
  • This kind of hearing impairment is often temporary. After some time the trauma will stop. Permanent acoustic trauma If the acoustic trauma continues, it will typically lead to hearing impairment within a relatively narrow frequency around 4 kHz.[hear-it.org]
  • Stem Cell Treatment Stem Cells as a form of treatment for hearing impairment is a relatively new concept.[tinnituspill.org]
  • Screening for Hearing Impairment The U.S.[aafp.org]
  • Sensorineural hearing loss (SNHL) or nerve deafness can be defined as a type of hearing impairment that is caused due to dysfunction of the sensory receptors present in the inner ear.[news-medical.net]
  • impairment prevalence ratio of 1.1% among the US population (Morbidity and Mortality weekly report, 2011).[acousia.com]
Hearing Problem
  • -Older adults with impaired hearing may have a shorter lifespan than their peers without hearing problems -There is a significant association between high blood pressure and untreated hearing loss -Adults with hearing loss experience a 30-40% faster decline[flukehearing.com]
  • Identification of elderly people with hearing problems. ASHA 1983;25:37–42. American Speech-Language-Hearing Association.[aafp.org]
  • Next Post – Management of sudden sensorineural hearing loss Common Ear, Nose, Throat ( ENT) and Hearing problems[entcare.wordpress.com]
  • This type of doctor can diagnose hearing problems and recommend the best way to manage them. While there is no cure for noise-induced hearing loss, there is some promising research being done.[medicinenet.com]
Labyrinth Disorder
  • Disease: Version SOC Term Classification Code Term Level 14.1 10013993 - Ear and labyrinth disorders 10040016 Sensorineural hearing loss LLT Population Age: Adults Gender: Male, Female Trial protocol: DE (Completed) CZ (Completed) Trial results: View[clinicaltrialsregister.eu]
Stroke
  • In addition to explaining the basic principles of HBO therapy, and its application in carbon monoxide poisoning and decompression sickness, the textbook looks objectively and critically at its use in numerous other areas, such as stroke, neurological[books.google.com]
  • Some evidence suggests SSNHL is linked to stroke, with SSNHL preceding stroke in 8% of 364 patients in one prospective series study. Abrupt, severe, and irreversible SSNHL has also been described in patients with migraine.[audiologyonline.com]
  • Metabolic syndrome is a risk factor for type 2 diabetes and cardiovascular disease, including heart attack and stroke. This study examined 124 patients treated for SSNHL in a university hospital in South Korea.[tinnitusformula.com]
  • For example, sudden hearing loss rarely may be the first manifestation of an acoustic neuroma, multiple sclerosis, Meniere disease, or a small cerebellar stroke. Syphilis reactivation in HIV-infected patients rarely can cause sudden hearing loss.[merckmanuals.com]
  • The remaining 1 percent are predominantly due to “retrocochlear” disease, such as vestibular schwannoma (a.k.a. acoustic neuroma; a type of benign tumor), demyelinating disease (multiple sclerosis), or stroke.[masseyeandear.org]
Slurred Speech
  • Do not delay getting medical attention if your hearing loss is associated with any of the following: Signs or symptoms of other serious neurologic conditions such as a stroke (slurred speech, facial droop, difficulty moving one side of your body) Recent[emedicinehealth.com]
Sensation Disorder
  • Disorders Neurologic Manifestations Nervous System Diseases Signs and Symptoms[clinicaltrials.gov]

Workup

  • The role of imaging is still not well defined in SSNHL workup as it does not seem to affect treatment much; however, to label SSNHL as idiopathic, MRI is essential to rule out vestibular Schwannoma as it is found in about 2% of SSNHL and has been associated[ejo.eg.net]

Treatment

  • There is research evidence, albeit limited, to support the early and short term use of corticosteroids in patients with no contraindications to steroid treatment.[books.google.com]
  • […] such as stroke, neurological disorders, traumatology and wound healing, infectious diseases, rehabilitation and sports medicine, plastic surgery, emergency medicine, ophthalmology, obstetrics, pediatrics, organ transplantation, and as an adjunct to the treatment[books.google.com]
  • All reports describing treatments indicated that earlier initiation of treatment was associated with better hearing outcome.[masseyeandear.org]
  • Change in the auditory acuity before and after treatment Classification Before treatment After treatment % (n/N) % (n/N) Normal 30.5 % (18/56) 59.3 % (35/56) Mild loss 11.9 % (7/56) 10.2 % (6/56) Moderate loss 10.2 % (6/56) 8.5 % (5/56) Moderately severe[hsj.gr]
  • Stem Cell Treatment Stem Cells as a form of treatment for hearing impairment is a relatively new concept.[tinnituspill.org]

Prognosis

  • Prognosis and treatment of sudden sensorineural hearing loss. Am J Otol 1996;17:529-36. [Table 1][indianjotol.org]
  • The sooner a response is seen, the better the overall prognosis. Patients who get all the way to the end of their course of steroid treatment with no demonstrable benefit have a poor prognosis for further hearing recovery.[masseyeandear.org]
  • Prognosis and treatment of sudden sensorineural hearing loss. Amj otol 1996; 17:529-536. [Table 1][ejo.eg.net]
  • Some 35 patients had mild idiopathic hearing loss and prognosis was relatively good.[ci.nii.ac.jp]
  • Reduced speech discrimination appears to carry a poor prognosis.[otologytextbook.net]

Etiology

  • Etiology There are three main causes of acquired sensorineural hearing loss: ototoxic drugs (ototoxicity); overstimulation (acoustic trauma); and age (presbycusis).[cochlea.eu]
  • Still other treatment ideas are directed at other presumed etiologies.[otologytextbook.net]
  • Finally a microemboli due to postoperative hypercoagulability could be the etiologic factor.[omicsonline.org]
  • Systematic review of the evidence for the etiology of adult sudden sensorineural hearing loss. Laryngoscope 2010;120:1011-21. Nosrati-Zarenoe R, Arlinger S, Hultcrantz E.[ejao.org]
  • Exact etiology often remains unknown so early diagnosis by avoiding unnecessary investigations and prompt treatment in Keywords: methylprednisolone, pure tone audiogram, sudden sensorineural hearing loss How to cite this article: Gupta V, Jain A, Banerjee[ejo.eg.net]

Epidemiology

  • Literature Klemm E, Deutscher A, Mosges R (2009) [A present investigation of the epidemiology in idiopathic sudden sensorineural hearing loss]. Laryngo- rhino- otologie 88:524-527.[acousia.com]
  • The best epidemiologic data suggest it strikes one person per 5,000 per year. In metropolitan Boston, for example, this would mean that 300 or 400 people per year develop idiopathic SSNHL. It’s a fairly common problem.[enttoday.org]
  • Epidemiological evaluation of hearing damage related to strongly amplified music (personal cassette players, discotheques, rock concerts): high definition audiometric survey on 1,364 subjects. Audiology. 1996;35:121–42. 6.[aafp.org]
  • Epidemiology of Hearing Impairment and Noise-Induced Hearing Injury Among U.S. Military Personnel, 2003–2005. Am J Prev Med. 2010;38(1S):S71–S77.[latunisiemedicale.com]
Sex distribution
Age distribution

Pathophysiology

  • The postulated pathophysiology for the SSNHL with dizziness after head trauma has four possible pathways. First, microfractures resulting from the head trauma could account for the labyrinthine concussion.[ejao.org]
  • Note - the following pages concern either clinical aspects of hearing loss, or experimental results that describe the pathophysiological and molecular mechanisms that cause it.[cochlea.eu]
  • Various etiologies had thus been proposed to look into the pathophysiology of this phenomenon and thus offer a possible preventive or curative measure.[omicsonline.org]
  • Actually, it is well known that two different pathophysiological mechanisms are involved: mechanical and metabolic.[latunisiemedicale.com]

Prevention

  • Preventive Services Task Force. Guide to clinical preventive services. 2d ed. Baltimore: Williams and Wilkins, 1996:393–403. 18. Koike KJ, Hurst MK, Wetmore SJ.[aafp.org]
  • Call your provider if: You have symptoms of acoustic trauma Hearing loss occurs or gets worse Take the following steps to help prevent hearing loss: Wear protective ear plugs or earmuffs to prevent hearing damage from loud equipment.[medlineplus.gov]
  • One-third of permanent hearing loss is preventable with proper hearing loss prevention strategies . PROTECT THE HEARING THAT YOU HAVE NOW! References ANSI (1996).[betterhearing.org]
  • Do hearing protectors prevent a person from communicating with others? The answer is no, at least for people with normal hearing.[medicinenet.com]
  • Preventing hearing loss It's not always possible to prevent hearing loss, but there are some simple things you can do to reduce the risk of damaging your hearing.[nhs.uk]

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