1,721,153 research outputs found
Sudden sensorineural hearing loss
No full textSudden sensorineural hearing loss (SSNHL), is an important otological disorder that affects up to 5-20 in 100,000 people. It is characterized by a rapid loss of the hearing, usually unilateral, with a sensorineural hearing loss greater than 30 dB over three consecutive frequencies, in less than 72 hours and can be associated with tinnitus and vertigo. It is a real sensorineural emergency that can become a permanent handicap if not adequately treated. Because of patients recovering rapidly or seeking no medical attention, the true figure might be higher, even if delaying SHL diagnosis and treatment may decrease the effectiveness of treatment. Sudden Hearing Loss can occur at any age but usually affects between 50 and 60 years old and the youngest patients affected are among 20-30 years old. There are not significantly differences in the prevalence between men and women[1-3]. Several pathophysiological mechanisms have been proposed to explain SHL (infective, vascular, and immune disease), but only 10 to 15 percent of the people have an identifiable cause; the majority of cases in fact remain 'idiopathic'[4].Because no specific cause is identified, the treatments are heterogeneous and can be considered empiric; on one hand therapies' aim is to correct the primary risk factors (smoke, diabetes, hypertension, previous viral or bacterial infections), on the other hand the purpose is to act on the main etiopathogenetic hypotheses (viral infection, immunologic, vascular compromise)
Sensorineural hearing loss: Pathophysiology, diagnosis and treatment
No full textHearing loss is one the commonest disabling diseases affecting populations of all ages worldwide. The impairment of hearing may be the cause of impaired language development in children, the cause of scholarly issues in adolescents, the cause of worsening of quality of life in the adults, and the cause of isolation of aged people. In this book, the authors present the hearing loss in all its facets, starting from the basis of pathophysiology and anatomy, passing through the clinical and instrumental diagnosis and, finally, describing the most important diseases causing hearing loss with reasonable treatment options. A section was dedicated to the imaging of the ear with about 100 original figures. The readers will find a complete classification of genetic hearing loss and all information related to congenital deafness as well. A wide section was reserved to the description and discussion of the most important pathology leading to hearing loss (Meniere's disease, otosclerosis, trauma and occupational hearing impairment, etc.). The treatment of hearing loss is continuously evolving with the progress of technology, and the authors gave a wide space to describe all treatment options available for the patients, providing all information useful to manage hearing disease correctly. (Imprint: Nova Medicine and Health)
Dizziness: Prevalence, risk factors and management
No full textVertigo and dizziness are two conditions whose prevalence throughout an individual's lifespan is estimated to range from 20% to 50% with a marked incidence regarding women. Starting from the frequency of these symptoms, the book explores different aspects of the otoneurology field and the vestibular diseases, from the anatomy of vestibular organs to the pharmacological, surgical and rehabilitative treatment of posterior labyrinth disorders. In particular, the benign paroxysmal positional vertigo (VPPB), Meniere's disease and dizziness in patients suffering from temporomandibular joint disorders and vertebral fractures are described. A focus on specific techniques to evaluate vestibular disorders is included and the video head impulse test (vHIT) and vestibular evoked myogenic potentials (VEMPs) application are shown to study each part of the posterior part of the inner ear. A specific chapter is dedicated to the management of postural disorders in vestibular dysfunctions, from the postural evaluation to the many different protocols of vestibular rehabilitation. The principles of pharmacotherapy are described; medications to treat dizziness and vertigo can include anticholinergics, antihistamines, benzodiazepines and other drugs including antiemetics, sympathomimetic and calcium antagonists. Finally, the principles underlying the surgical strategies in the management of the vertiginous patients, furthermore a general description of the technical aspects of each procedure are provided to show indications, potentials, limits, and contraindications of vestibular surgery
Art. 85 Banca dei beni culturali illecitamente sottratti
No full textSi commenta l'articolo che prevede l'istituzione di una banca dati dei beni illecitamente sottratti e se ne definiscono le modalità operative. L'istituzione di tale strumento tecnico è valutata con riferimento alle norme dell'Unione europea e al diritto internazionale
Formal and thematic analysis of universal TAT plates responses: young adults vs middle-aged (17-40 vs 41-60 years old)
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Formal and thematic analysis of universal TAT plates responses : young adults vs middle-aged (17-40 vs 41-60 years old)
No full textCause, pathogenesis, clinical manifestations and treatment of meniere's disease and endolymphatic hydrops
No full textMeniere's disease (MD) is characterized by the triad of fluctuating hearing loss, episodic vertigo and tinnitus, and by endolymphatic hydrops found on postmortem examinations. Since the description of endolymphatic hydrops by Hallpike and Cairns all the physiopathology of Meniere's symptoms have been based on assumption that the pathologic lesion was the cause of the symptoms. Paparella came out term and concept towards understanding of a disease was, "pathogenesis," which applies to all otological diseases, in general and in particular within this context of MD, which allows us to better understand this disease. After Schuknecht proposed the theory of membranous rupture causing the mixing up of endo and perilymph leading to the appearance of Meniere's symptoms. Lawrence proved this theory with research on experimental animals. In 1995 the AAO-HNS criteria defines "Possible MD, Probable MD, Definite MD and Certain MD. In 1995 the Committee of Barany Society proposed a classification that is similar to the AAO-HNS criteria, it includes only two categories: definite MD and probable MD. A variety of medical and surgical treatments have been developed to treat or control the symptoms. The treatment can be divided into non-destructive and destructive procedures
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
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