Hearing Loss in the Elderly: Audiometric, Electrophysiological and Histopathological Aspects

ISBN-13: 9781447118077 / Angielski / Miękka / 2011 / 111 str.

Sava Soucek; Leslie Michaels

Opis

In their preface, the authors highlight the great social and medical importance of hearing loss in the elderly, an ever-increasing prob lem. It is, therefore, most appropriate that a monograph, devoted to research in this field, features as an addition to the Bloomsbury Series in Clinical Science. Written by two leading authorities, the book reviews the past and present literature, details the clinical aspects and considers the electrophysiological and histopatho logical issues basic to the overall problem. It continues the high standard and excellence fostered by previous issues in the Series. London, August 1990 Jack Tinker Preface The number of very old people in the community is steadily increasing so the hearing loss that many of them endure has become a disorder of social and medical importance. Only by a greater scientific knowledge of old age deafness can there be any possibility for improvement in the care offered to its sufferers."

Spis treści

1 Review of Literature.- Up to the Early Twentieth Century.- Recent Times.- Localization of the Disturbance.- Central.- Peripheral.- Aetiological Basis for the Disturbance.- Role of Exogenous Factors.- Summary.- Localization.- Aetiological Basis.- 2 Clinical Diagnosis and Audiometric Studies.- Clinical Dignosis.- History.- Examination of the Ear.- Clinical Speech Tests.- Tuning Fork Methods.- Audiogram.- Tympanometry.- X-Rays.- Electrophysiology.- Calorics and Electronystagmography.- Disorders of the External Ear.- Disorders of the Middle Ear.- Disorders of the Inner Ear.- Presbyacusis.- Noise Induced Hearing Loss.- Ototoxicity.- Bone Lesions of the Otic Capsule.- Acoustic Neuroma.- Tinnitus.- Audiometric Studies.- Personal Investigations.- Hearing Levels in a Large Group of Elderly People.- Comparison of Hearing Levels in Different Medical and Environmental Conditions.- 3 Electrophysiology.- (In collaboration with S.M. Mason).- Extratympanic Electrocochleography.- Detailed Investigation of ABR; Preliminary Investigation of ECochG.- Procedure.- Results.- Discussion.- Summary.- Simultaneous Recordings of ABR and ECochG; Detailed Investigation of ECochG Components.- Procedure.- Results.- Discussion.- Conclusions.- Summary.- Stimulus Rate Effects.- Procedure.- Results.- Discussion.- 4 Histopathological Changes.- Perfusion-Fixation and Slicing of Inner Ear.- Staining of Surface Preparations.- Preliminary Survey of Morphological Changes in Elderly Cochleas.- Procedure.- Results.- Discussion.- Quantitative Analysis of Hair Cell Changes.- Procedure.- Results.- Discussion.- Summary of Histopathological Changes.- 5 Summing-up.