Age-related hearing loss (presbycusis) refers to bilaterally symmetrical hearing loss resulting from aging process. Presbycusis is a complex phenomenon characterized by audiometric threshold shift, deterioration in speech-understanding and speech-perception difficulties in noisy environments. Factors contributing to presbycusis include mitochondria DNA mutation, genetic disorders including Ahl,...

OBJECTIVE To determine the configurations in pathologic audiograms obtained in patients shortly after exposure to an explosion. DESIGN, SETTING, AND PATIENTS Audiograms were performed in 143 patients (286 ears; 76 males and 67 females, with a mean age of 34.6 years [range, 11-79 years]) sent to the Department of Otolaryngology and Head and Neck Surgery in a city hospital located in the center...

INTRODUCTION  With the technological advances and the changes in the productive processes, the workers are displayed the different physical and chemical agents in its labor environment. The toluene is solvent an organic gift in glues, inks, oils, amongst others. OBJECTIVE  To compare solvent the literary findings that evidence that diligent displayed simultaneously the noise and they have gre...

The present study was planned to assess the noise levels to which the drivers from State Transport Sangli Depot., are exposed during their duty hours and to explore the effects of high intensity noise of their hearing ability by audiometric examination. The study was done both in study and control group. Noise levels were measured in the driver's cabin and in the working place of the controls w...

This study investigated the characteristics of hearing loss in children with ventriculoperitoneal (VP) shunted hydrocephalus. Twelve hydrocephalic children with patent VP shunts participated. The etiology of the hydrocephalus was either intraventricular hemorrhage or spina bifida. Audiometric examination included pure-tone air conduction thresholds, tympanometry, contralateral and ipsilateral a...