نتایج جستجو برای: hearing threshold

تعداد نتایج: 234179  

Abdolamir Allameh, Ali Khavanin Masoud Motallebi Kashani Mehdi Akbari Ramezan Mirzaee Seyyed Bagher Mortazavi

Noise induced hearing loss (NIHL) is one of the most important occupational disease worldwide. NIHL has been found potentiate by simultaneous carbon monoxide (CO) exposure. Free radicals have been implicated in cochlear damage resulted from the exposure to noise and due to the CO hypoxia. This study examined whether α-tocopherol administration, as a free radical scavenger, causes the attenuatio...

Abdolamir Allameh, Ali Khavanin Masoud Motallebi Kashani Mehdi Akbari Ramezan Mirzaee Seyyed Bagher Mortazavi

Noise induced hearing loss (NIHL) is one of the most important occupational disease worldwide. NIHL has been found potentiate by simultaneous carbon monoxide (CO) exposure. Free radicals have been implicated in cochlear damage resulted from the exposure to noise and due to the CO hypoxia. This study examined whether α-tocopherol administration, as a free radical scavenger, causes the attenuatio...

Journal: :health scope 0
hassan mohammadpour department of occupational hygiene engineering, collage of health, shahid beheshti university of medical sciences, tehran, ir iran seyyed ali moussavi najarkola department of occupational hygiene engineering, collage of health, shahid beheshti university of medical sciences, tehran, ir iran; department of occupational hygiene engineering, collage of health, shahid beheshti university of medical sciences, p. o. box: 19835-35511, tehran, ir iran. tel: +98-2122432040-41, fax: +98-2122432037 mahdi jalali department of occupational hygiene engineering, hamadan university of medical sciences, hamedan, ir iran amin hosseini asl department of surveying engineering, faculty of civil engineering, toosi university of technology, tehran, ir iran alireza rahmati department of occupational hygiene engineering, collage of health, shahid beheshti university of medical sciences, tehran, ir iran

background in many industries, noise is attributed as the most prevalent harmful agent threatening workers' health. geographic information system (gis) is an applicable surveying tool in civil engineering. but, the use of gis for noise and hearing loss screening seems to be partly a new approach. objectives this study aimed to apply gis in noise and hearing loss screening in the production hall...

2012
Min-Young Kang Sung-Wook Jeong Lee-Suk Kim

OBJECTIVES The aim of this study was to investigate changes in the hearing thresholds during the first year of life in infants who failed the newborn hearing screening (NHS) test and of infants treated in the neonatal intensive care unit (NICU). METHODS From March 2007 to November 2010, 193 healthy infants who failed the NHS test and 51 infants who were treated in the NICU were referred for e...

Journal: :iranian journal of basic medical sciences 0
akram pourbakht department of audiology, faculty of rehabilitation, rehabilitation research center, iran university of medical sciences, tehran, iran

objective(s): noise-induced hearing loss (nihl) is the major cause of acquired hearing loss.  celecoxib, a cyclooxygenase-2 (cox-2) inhibitor, is a non- steroidal anti- inflammatory drug (nsaid) with known antioxidant and antineoplastic activity. therefore, we monitored the extent of temporary noise- induced threshold shifts (tts) and cochlear damage caused by high level 4- khz noise exposure t...

Ali Yoonessi, Azadeh Zendehbad, Elaheh Shahmiri, Mahsa Radmehr, Maryam Noroozian, Masoud Bagherian, Naser Amini, Shaghayegh Omidvar, Zahra Jafari,

Introduction: Tinnitus is one of the complex symptoms of hearing described as a phantom auditory sensation without any external stimulation. Due to the subjective nature of tinnitus, perception and discomfort of tinnitus vary among the patients. The main aim of this study is to investigate the effects of gender, age and the degree of hearing loss on discomfort due to tinnitus.  Methods: E...

Journal: :The Laryngoscope 2014
Hyun Woo Lim Byoung Soo Shim Chan Joo Yang Jeong Hoon Kim Young Hyun Cho Yang-Sun Cho Doo-Sik Kong Ja-Won Koo Jung-Ho Han Jong Woo Chung

OBJECTIVES/HYPOTHESIS Hearing loss can be associated with a decrease in cerebrospinal fluid (CSF) pressure because changes in CSF pressure induce changes in perilymph pressure. Hearing loss after neurosurgical procedures have been reported, but clinical information on hearing loss after the placement of ventriculoperitoneal (VP) shunts, the most commonly used CSF shunt for hydrocephalus patient...

2016
Sang Jin Park Joo Hyun Sung Chang Sun Sim Seok Hyeon Yun Jeong Han Yeom Joong-Keun Kwon Jiho Lee

BACKGROUND The purpose of this study was to investigate hearing threshold changes of workers with unilateral conductive hearing loss who were exposed to workplace noise for 8-years. METHODS Among 1819 workers at a shipyard in Ulsan, 78 subjects with an air-bone gap ≥10 dBHL in unilateral ears were selected. Factors that could affect hearing were acquired from questionnaires, physical examinat...

2014
Youngmin Na Hyo Sung Joo Hyejin Yang Soojin Kang Sung Hwa Hong Jihwan Woo

It is important and recommended to detect hearing loss as soon as possible. If it is found early, proper treatment may help improve hearing and reduce the negative consequences of hearing loss. In this study, we developed smartphone-based hearing screening methods that can ubiquitously test hearing. However, environmental noise generally results in the loss of ear sensitivity, which causes a he...

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