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Ischemia- Modified Albumin Levels in the Sudden Hearing Loss

2018-10-19 12:38:23 | BioPortfolio

Summary

To evaluate ischemia-modified albumin levels in these patients to investigate the presence of ischemia in patients presenting with sudden hearing loss.

Description

Sudden hearing loss is an ENT emergence occurring within 72 hours, with sensorineural hearing loss of more than 30 dB on three consecutive frequencies. The incidence of this disease was 5-20 / 100000. The etiology of this disease has not been fully elucidated. In addition, viral infections, tumors, autoimmune diseases and vascular insufficiency have been suggested as etiologic factors by different researchers. There is no definitive routine treatment modality in the world because the etiology is not fully established. However, corticosteroid treatment is a well-accepted agent for the treatment of internal ear damage. In recent years, studies have shown that ischemia has an important place in etiology and hyperbaric oxygen therapy has become one of the routine treatment protocols. Another important point in terms of the prognosis of the disease is that spontaneous recovery of sudden hearing loss in 30-70% of the patients is observed in different studies.

Ischemia-modified albumin is a compound used as a marker of oxidative stress and used to determine the severity of cardiac ischemia.

In this study, the levels of ischemia-modified albumin levels in patients with SSHL and healthy control patients will be measured and their effectiveness in revealing the etiology of SSHL will be investigated. The difference between ischemia-modified albumin between patients and healthy control subjects will be evaluated. The number of patients and control groups shall be 30 individuals.

The evaluation of the hearing of the patients with hearing loss will be performed by the Otorhinolaryngology Department of Yuzuncu Yıl University. The study is planned to be performed with a total of 30 patients aged 18-50 years. Those who are diagnosed with SSHL will be included in the group and chronic diseases in the ear will be excluded. Thirty healthy patients with similar age and gender will be included in the study as the control group. The patients in the control group, must have normal hearing levels. The amounts of ischemic modified albumin in the study group and in the control group will be measured. Hearing levels will be determined at the admission time and 3,7,10th days and 1st month. 5 ml of peripheral blood samples taken from both groups of patients will be taken into biochemistry tubes. The blood will be centrifuged at 4000 rpm for 5 minutes to separate from the serum and plasma. Serum samples obtained will be stored at -20 oC until analysis. The selected samples are not hemolyzed and lipemic. Once the target number has been reached, all samples will be carefully mixed and then returned to the room temperature (15ına18 oC). It will be examined on the same day to avoid any differences between all sera. Statistical analysis will be done and interpreted.

Study Design

Conditions

Sudden Hearing Loss

Intervention

Ischemia-modified albumin, Hearing thresholds

Status

Not yet recruiting

Source

Yuzuncu Yıl University

Results (where available)

View Results

Links

Published on BioPortfolio: 2018-10-19T12:38:23-0400

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Medical and Biotech [MESH] Definitions

Sensorineural hearing loss which develops suddenly over a period of hours or a few days. It varies in severity from mild to total deafness. Sudden deafness can be due to head trauma, vascular diseases, infections, or can appear without obvious cause or warning.

Hearing loss due to exposure to explosive loud noise or chronic exposure to sound level greater than 85 dB. The hearing loss is often in the frequency range 4000-6000 hertz.

Hearing loss due to disease of the AUDITORY PATHWAYS (in the CENTRAL NERVOUS SYSTEM) which originate in the COCHLEAR NUCLEI of the PONS and then ascend bilaterally to the MIDBRAIN, the THALAMUS, and then the AUDITORY CORTEX in the TEMPORAL LOBE. Bilateral lesions of the auditory pathways are usually required to cause central hearing loss. Cortical deafness refers to loss of hearing due to bilateral auditory cortex lesions. Unilateral BRAIN STEM lesions involving the cochlear nuclei may result in unilateral hearing loss.

Transmission of sound waves through vibration of bones in the SKULL to the inner ear (COCHLEA). By using bone conduction stimulation and by bypassing any OUTER EAR or MIDDLE EAR abnormalities, hearing thresholds of the cochlea can be determined. Bone conduction hearing differs from normal hearing which is based on air conduction stimulation via the EAR CANAL and the TYMPANIC MEMBRANE.

Hearing loss due to damage or impairment of both the conductive elements (HEARING LOSS, CONDUCTIVE) and the sensorineural elements (HEARING LOSS, SENSORINEURAL) of the ear.

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