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tinnitus types

Daniel S Roberts, Steve Otto, Brian Chen, Kevin A Peng, Marc S Schwartz, Derald E Brackmann, John W House
OBJECTIVE: To evaluate whether an auditory brainstem implant (ABI) can impact levels of tinnitus in neurofibromatosis type-2 (NF2) patients who have undergone translabyrinthine craniotomy for vestibular schwannoma (VS) removal and to evaluate the burden of tinnitus in these patients. STUDY DESIGN: A retrospective case series and patient survey. SETTING: Tertiary neurotologic referral center. PATIENTS: NF2 patients who underwent translabyrinthine removal of VS and ABI placement between 1994 and 2015...
October 12, 2016: Otology & Neurotology
Verónica Gómez Toledo, Ileana Gutiérrez Farfán, Antonio Verduzco-Mendoza, Emilio Arch-Tirado
BACKGROUND: Tinnitus is defined as the conscious perception of a sensation of sound that occurs in the absence of an external stimulus. This audiological symptom affects 7% to 19% of the adult population. The aim of this study is to describe the associated comorbidities present in patients with tinnitus usingjoint and conditional probability analysis. PATIENTS: Patients of both genders, diagnosed with unilateral or bilateral tinnitus, aged between 20 and 45 years, and had a full computerised medical record, were selected...
October 13, 2016: Cirugia y Cirujanos
David A Bender, Ruiye Ni, Dennis L Barbour
Sensory neurons across sensory modalities and specific processing areas have diverse levels of spontaneous firing rates (SFRs) in the absence of sensory stimuli. However, the functional significance of this spontaneous activity is not well understood. Previous studies in the auditory system have demonstrated that different levels of spontaneous activity are correlated with a variety of physiological and anatomical properties, suggesting that neurons with differing SFRs make unique contributions to the encoding of auditory stimuli...
October 5, 2016: Journal of Neurophysiology
H Liang, S X Zhong
Objective: To investigate the possible factors related to recurrence and prognosis of sudden sensorineural hearing loss(SSNHL). Methods: Four hundred and ninety-five patients with unilateral sudden sensorineural hearing loss between January 2013 to April 2014 were analyzed retrospectively(34 patients lost to follow-up with a dropout rate of 6.87%). Twenty of the 495 patients were diagnosed as recurrent SSNHL and treated again in the same hospital. The data of the patients were summarized to analyze the related factors which might influence the recurrence and prognosis of SSNHL...
September 7, 2016: Zhonghua Er Bi Yan Hou Tou Jing Wai Ke za Zhi, Chinese Journal of Otorhinolaryngology Head and Neck Surgery
Brahim Tighilet, Sophie Dutheil, Marina I Siponen, Arnaud J Noreña
While many studies have been devoted to investigating the homeostatic plasticity triggered by cochlear hearing loss, the cellular and molecular mechanisms involved in these central changes remain elusive. In the present study, we investigated the possibility of reactive neurogenesis after unilateral cochlear nerve section in the cochlear nucleus (CN) of cats. We found a strong cell proliferation in all the CN sub-divisions ipsilateral to the lesion. Most of the newly generated cells survive up to 1 month after cochlear deafferentation in all cochlear nuclei (except the dorsal CN) and give rise to a variety of cell types, i...
2016: Frontiers in Pharmacology
Abdulbari Bener, Abdulla O A A Al-Hamaq, Khalid Abdulhadi, Ahmed H Salahaldin, Loida Gansan
AIM: The aim of this study was to determine the prevalence of hearing loss and its association with type 2 diabetes mellitus (T2DM) in a highly endogamous population. DESIGN: This is a cross-sectional study. SETTING: The present study is carried out in Ear Nose Throat (ENT) and Endocrinology outpatient clinics of the Hamad General and Rumeilah Hospitals, Hamad Medical Corporation. SUBJECTS: All subjects aged between 20 and 59 years who visited the Endocrinology and ENT outpatient clinics of the Hamad Medical Corporation with hearing difficulty were included in this study during the period from January 2013 to July 2014...
September 5, 2016: Diabetes & Metabolic Syndrome
Hong Yu, Kim Vikhe Patil, Chul Han, Brian Fabella, Barbara Canlon, Shinichi Someya, Christopher R Cederroth
Gap detection or gap pre-pulse inhibition of the acoustic startle (GPIAS) has been successfully used in rat and guinea pig models of tinnitus, yet this system has been proven to have low efficacy in CBA mice, with low basal GPIAS and subtle tinnitus-like effects. Here, we tested five mouse strains (CBA, BalbC, CD-1, C57BL/6 and 129sv) for pre-pulse inhibition (PPI) and gap detection with varying interstimulus intervals (ISI) and found that mice from a CBA genetic background had the poorest capacities of suppressing the startle response in the presence of a pre-pulse or a gap...
2016: Frontiers in Behavioral Neuroscience
Donald M Caspary, Daniel A Llano
Tinnitus is defined as a phantom sound (ringing in the ears), and can significantly reduce the quality of life for those who suffer its effects. Ten to fifteen percent of the general adult population report symptoms of tinnitus with 1-2% reporting that tinnitus negatively impacts their quality of life. Noise exposure is the most common cause of tinnitus and the military environment presents many challenging high-noise situations. Military noise levels can be so intense that standard hearing protection is not adequate...
August 20, 2016: Hearing Research
Dean M Thompson, Deborah A Hall, Dawn-Marie Walker, Derek J Hoare
BACKGROUND: Tinnitus is associated with depression and anxiety disorders, severely and adversely affecting the quality of life and functional health status for some people. With the dearth of clinical psychologists embedded in audiology services and the cessation of training for hearing therapists in the UK, it is left to audiologists to meet the psychological needs of many patients with tinnitus. However, there is no universally standardized training or manualized intervention specifically for audiologists across the whole UK public healthcare system and similar systems elsewhere across the world...
August 18, 2016: Ear and Hearing
Katsuki Niwa, Kunio Mizutari, Toshiyasu Matsui, Takaomi Kurioka, Takeshi Matsunobu, Satoko Kawauchi, Yasushi Satoh, Shunichi Sato, Akihiro Shiotani, Yasushi Kobayashi
The ear is the organ that is most sensitive to blast overpressure, and ear damage is most frequently seen after blast exposure. Blast overpressure to the ear results in sensorineural hearing loss, which is untreatable and is often associated with a decline in the quality of life. In this study, we used a rat model to demonstrate the pathophysiological and structural changes in the inner ear that replicate pure sensorineural hearing loss associated with blast injury using laser-induced shock wave (LISW) without any conductive hearing loss...
2016: Scientific Reports
Ricky Chen, David C Spencer, Jennifer Weston, Sarah J Nolan
BACKGROUND: Epilepsy is a highly prevalent neurological condition characterized by repeated unprovoked seizures with various etiologies. Although antiepileptic medications produce clinical improvement in most individuals, nearly a third of individuals have drug-resistant epilepsy that carries significant morbidity and mortality. There remains a need for non-invasive and more effective therapies for this population. Transcranial magnetic stimulation (TMS) uses electromagnetic coils to excite or inhibit neurons, with repetitive pulses at low-frequency producing an inhibitory effect that could conceivably reduce cortical excitability associated with epilepsy...
2016: Cochrane Database of Systematic Reviews
Ryosuke Doijiri, Hisakazu Uno, Kotaro Miyashita, Masafumi Ihara, Kazuyuki Nagatsuka
BACKGROUND: The sudden development of vertigo or dizziness without focal neurological symptoms is generally attributable to vestibular diseases such as benign paroxysmal positional vertigo. Isolated vertigo or dizziness attack needs more attention than vestibular diseases. This retrospective study was performed to elucidate the frequency of strokes in patients with isolated vertigo or dizziness attack. SUBJECTS AND METHODS: We enrolled 221 patients (men, 119; women, 102; mean age, 68...
October 2016: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
Y Gao, N Manzoor, J A Kaltenbach
The purpose of the present study was to investigate the immediate effects of acute exposure to intense sound on spontaneous and stimulus-driven activity in the dorsal cochlear nucleus (DCN). We examined the levels of multi- and single-unit spontaneous activity before and immediately following brief exposure (2 min) to tones at levels of either 109 or 85 dB SPL. Exposure frequency was selected to either correspond to the units' best frequency (BF) or fall within the borders of its inhibitory side band. The results demonstrate that these exposure conditions caused significant alterations in spontaneous activity and responses to BF tones...
August 1, 2016: Hearing Research
Jorrit W van As, Henk van den Berg, Elvira C van Dalen
BACKGROUND: Platinum-based therapy, including cisplatin, carboplatin, oxaliplatin or a combination of these, is used to treat a variety of paediatric malignancies. Unfortunately, one of the most important adverse effects is the occurrence of hearing loss or ototoxicity. There is a wide variation in the reported prevalence of platinum-induced ototoxicity and the associated risk factors. More insight into the prevalence of and risk factors for platinum-induced hearing loss is essential in order to develop less ototoxic treatment protocols for the future treatment of children with cancer and to develop adequate follow-up protocols for childhood cancer survivors treated with platinum-based therapy...
2016: Cochrane Database of Systematic Reviews
Mithila Durai, Grant Searchfield
OBJECTIVE: Scoping reviews of existing literature were conducted to identify key personality traits relevant to tinnitus, and examine the relationship between affective disorders and tinnitus. DESIGN: The methodological framework of Arksey and O'Malley was followed. STUDY SAMPLE: Sixty studies were chosen for charting the data, 14 studies examined personality traits exclusively, 31 studies examined affective disorders exclusively, and 15 studies investigated both...
November 2016: International Journal of Audiology
Jamil Nasser Al-Swiahb, Eul Seung Hwang, Ji Sun Kong, Woo Jin Kim, Sang Won Yeo, Shi Nae Park
This study was performed to analyze clinical and audiologic characteristics of sensorineural tinnitus and to investigate the associating factors reflecting psychological aspects of stress and depression of the patients. This is a retrospective analytical study conducted in a tinnitus clinic of a tertiary referral center of a university hospital. The medical records of 216 patients suffering from sensorineural tinnitus were thoroughly evaluated to determine correlations between clinical and audiological characteristics, including age, sex, predisposing or etiologic factors, hearing levels up to extended high frequencies, and tinnitus severity...
May 27, 2016: European Archives of Oto-rhino-laryngology
Stéphanie Lenck, Fabrice Vallée, Marc-Antoine Labeyrie, Valérie Touitou, Jean-Pierre Saint-Maurice, Antoine Guillonnet, Audrey Tantot, Isabelle Crassard, Anne-Laure Bernat, Emmanuel Houdart
BACKGROUND: Over the past decade, stenting of lateral sinus stenosis has been used to treat idiopathic intracranial hypertension. Two types of stenoses have been identified: extrinsic and intrinsic. OBJECTIVE: The aim of this study was to report the results of our use of this procedure to treat patients with extrinsic or intrinsic stenoses in idiopathic intracranial hypertension. METHODS: We retrospectively studied clinical, radiological, and manometric data from patients with idiopathic intracranial hypertension who were treated at our institution between January 2009 and January 2015 by stenting of the lateral sinus...
May 23, 2016: Neurosurgery
Brenton Nash, Matthew L Carlson, Jamie J Van Gompel
OBJECTIVE The objective of this study was to examine operative outcomes in cases of microvascular decompression (MVD) of cranial nerve (CN) VIII for tinnitus through a critical review of the literature. METHODS Forty-three English-language articles were gathered from PubMed and analyzed. In this review, two different case types were distinguished: 1) tinnitus-only symptomatology, which was defined as a patient with tinnitus with or without sensorineural hearing loss; and 2) mixed symptomatology, which was defined as tinnitus with symptoms of other CN dysfunction...
May 20, 2016: Journal of Neurosurgery
Kumaran Thirunavukkarasu, Chinnaraj Geetha
INTRODUCTION: The present study was conducted to find one year prevalence and risk factors of tinnitus in the children (below 18 years) who reported with the ear or hearing related complaint to All India Institute of Speech and hearing, Mysore. METHODS: A retrospective case analysis was carried out by reviewing the case files of those who visited the institute during the above period. RESULTS: The results shown that the tinnitus prevalence was 5...
2015: International Tinnitus Journal
Thomas Zacharia, Judith James, Hari Prakash, Rukmangathan Thurvas Mohan, Bellur Rajashekhar
INTRODUCTION: Hearing sound that does not originate in the world outside the body is an experience every human has at one time or another in life. Circadian rhythm is common for all living organisms and nearly all physiological functions, especially sleep-wake cycles, exhibit circadian rhythmicity. A short survey conducted in the study center revealed that majority of the tinnitus subjects reported a difference in tinnitus severity across the day. So the current study focused on finding out the influence of circadian rhythm on tinnitus severity...
2014: International Tinnitus Journal
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