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In conclusion, these results support for the first time the notion that cognitive changes in tinnitus patients are associated with changes in hippocampal activity as well as the anterior cingulate and insula. PMID: 27016059 [PubMed - as supplied by publisher] (Source: Brain Research)
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Chronic subjective tinnitus is a frequent condition that affects the subject’s quality of life. The lack of objective measures of tinnitus necessitates the use of self-reporting and often time-consuming questi… (Source: Health and Quality of Life Outcomes)
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Publication date: Available online 22 March 2016 Source:Neuroimaging Clinics of North America Author(s): Ferdinand K. Hui, Todd Abruzzo, Sameer A. AnsariTeaser Pulsatile tinnitus from intracranial venous abnormalities is an uncommon cause of pulse synchronous tinnitus. Endovascular therapies may have applications in many of these disease conditions. They have the advantage of being minimally invasive and may selectively eliminate the site of turbulence. Venous stenting has been used successfully to treat venous stenoses with low complication rates and high success rates in patients with idiopathic intracranial hypertension though randomized controlled data are lacking. Careful exclusion of other causes of tinnitus should be performed before consideration for surgical or endovascular t…
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Publication date: Available online 22 March 2016 Source:Neuroimaging Clinics of North America Author(s): Suresh K. Mukherji (Source: Neuroimaging Clinics of North America)
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Pulsatile tinnitus from intracranial venous abnormalities is an uncommon cause of pulse synchronous tinnitus. Endovascular therapies may have applications in many of these disease conditions. They have the advantage of being minimally invasive and may selectively eliminate the site of turbulence. Venous stenting has been used successfully to treat venous stenoses with low complication rates and high success rates in patients with idiopathic intracranial hypertension though randomized controlled data are lacking. Careful exclusion of other causes of tinnitus should be performed before consideration for surgical or endovascular treatment of presumed causative lesions of venous tinnitus. (Source: Neuroimaging Clinics)
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has been a challenging topic for centuries. When I was “growing up,” we classified tinnitus as “subjective” versus “objective,” “pulsatile” versus “continuous,” or whether there was a retrotympanic mass. The answer to these questions directly affected the imaging evaluation and differential diagnosis. However, the various classifications created much confusion about this topic and led to inconsistent management and treatment of this important disorder. (Source: Neuroimaging Clinics)
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Laryngo-Rhino-OtolDOI: 10.1055/s-0042-100283 Hintergrund: Aufgrund der natürlichen Alterung und den gelockerten CI-Implantationskriterien werden vermehrt auch früher operierte Menière-Patienten mit einem Cochleaimplantat versorgt werden. Dabei stellt sich jedoch die Frage, ob eine Implantation bei vorbehandeltem Ohr erfolgsversprechend ist. Material und Methode: Anhand von 2 Fällen, bei denen wir eine Cochleaimplantation durchgeführt haben, einerseits 10 Jahre nach transmastoidaler Labyrinthektomie und andererseits bei beidseitigem Morbus Menière, sowie anhand der Literatur weisen wir auf Probleme und Erfolgsaussichten hin. Diskussion: Histologische Studien zeigen nur eine geringe Ossifikation der Cochlea nach Labyrinthektomie. Implantierte Menière-Patienten weisen eine bessere Spra…
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Tinnitus is a result of hyper-activity/hyper-synchrony of auditory neurons coding the tinnitus frequency, which has developed due to synchronous mass activity owing to the lack of inhibition. We assume that re… (Source: BMC Neurology)
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This study aimed to investigate the effects of electrical stimulation in the form of brief biphasic shocks delivered to the round window of the cochlea on the spontaneous firing rates of hyperactive inferior colliculus neurons following acoustic trauma in guinea pigs. Effects during the stimulation itself included both inhibition and excitation but spontaneous firing was suppressed for up to hundreds of ms after the cessation of the shock train in all sampled hyperactive neurons. Pharmacological block of olivocochlear efferent action on outer hair cells did not eliminate the prolonged suppression observed in inferior colliculus neurons, and it is therefore likely that activation of the afferent pathways is responsible for the central effects observed. PMID: 26970475 [PubMed - as suppli…
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Conclusion: the workers of public transport in the present study showed a good level of quality of life, considerable knowledge and limited complaints with regard to hearing issues, tinnitus and dizziness. (Source: Revista CEFAC)
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This article will address both tinnitus-specific and tinnitus non-specific procedures for objective and subjective causes. (Source: Neuroimaging Clinics)
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Conclusion: the use of hearing protectors is relevant as a preventive measure for controlling the level of noise that affects the individual’s cochlea, thus minimizing the physical and psycho-social effects resulting from noise exposure. (Source: Revista CEFAC)
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Reuters Health - A review of the literature turned up only two high quality studies that looked at whether wearing earplugs to music venues will prevent hearing loss and tinnitus directly afterward. (Source: Reuters: Health)
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Venous anomalies are the most commonly identified abnormality by imaging in the work-up for pulse synchronous tinnitus. Potential diagnoses include idiopathic intracranial hypertension, sigmoid sinus wall anomalies, transverse and sigmoid sinus stenosis, jugular bulb anomalies, and prominent posterior fossa emissary veins. These causes are discussed in detail along with the association between sigmoid sinus wall anomalies and idiopathic intracranial hypertension. (Source: Neuroimaging Clinics)
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Publication date: Available online 5 March 2016 Source:Neuroimaging Clinics of North America Author(s): Prashant Raghavan, Andrew Steven, Tanya Rath, Dheeraj GandhiTeaser Although tinnitus may originate in damage to the peripheral auditory apparatus, its perception and distressing symptomatology are consequences of alterations to auditory, sensory, and limbic neural networks. This has been described in several studies, some using advanced structural MR imaging techniques such as diffusion tensor imaging. An understanding of these complex changes could enable development of targeted treatment. New MR imaging techniques enabling detailed depiction of the labyrinth may be useful when diagnosis of Meniere disease is equivocal. Advances in computed tomography and MR imaging have enabled n…
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Publication date: Available online 5 March 2016 Source:Neuroimaging Clinics of North America Author(s): Michael A. Reardon, Prashant RaghavanTeaser Venous anomalies are the most commonly identified abnormality by imaging in the work-up for pulse synchronous tinnitus. Potential diagnoses include idiopathic intracranial hypertension, sigmoid sinus wall anomalies, transverse and sigmoid sinus stenosis, jugular bulb anomalies, and prominent posterior fossa emissary veins. These causes are discussed in detail along with the association between sigmoid sinus wall anomalies and idiopathic intracranial hypertension. (Source: Neuroimaging Clinics of North America)
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Although tinnitus may originate in damage to the peripheral auditory apparatus, its perception and distressing symptomatology are consequences of alterations to auditory, sensory, and limbic neural networks. This has been described in several studies, some using advanced structural MR imaging techniques such as diffusion tensor imaging. An understanding of these complex changes could enable development of targeted treatment. New MR imaging techniques enabling detailed depiction of the labyrinth may be useful when diagnosis of Meniere disease is equivocal. Advances in computed tomography and MR imaging have enabled noninvasive diagnosis of dural arteriovenous fistulae. (Source: Neuroimaging Clinics)
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Chronic mountain sickness (CMS) results from chronic hypoxia. It is unclear why certain highlanders develop CMS. We hypothesized modest increases in fetal hemoglobin (HbF) is associated with lower CMS severity. In this cross-sectional study, we showed that normal HbF levels (median 0.4%) were found in all 153 adult Andean natives in Cerro de Pasco, Peru. Compared to healthy adults, the borderline elevated hemoglobin group frequently had symptoms (headaches, tinnitus, cyanosis, dilatation of veins) of CMS. (Source: Experimental Hematology)
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Conclusion Neurotological complaints were frequent in this population, verifying the importance of these tests in the dysfunctions of the cervical region or the craniocervical junction.[…]Thieme Publicações Ltda Rio de Janeiro, BrazilArticle in Thieme eJournals:Table of contents | Abstract | open access Full text (Source: International Archives of Otorhinolaryngology)
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This article provides a summary of the imaging findings of structural causes of tinnitus. (Source: Neuroimaging Clinics of North America)
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This article provides a summary of the imaging findings of structural causes of tinnitus. (Source: Neuroimaging Clinics)
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Abstract Increases in the acoustic startle response (ASR) of animals have been reported following experimental manipulations to induce tinnitus, an auditory disorder defined by phantom perception of sound. The increases in ASR have been proposed to signify the development of hyperacusis, a clinical condition defined by intolerance of normally tolerable sound levels. To test this proposal, the present study compared ASR amplitude to measures of sound-level tolerance (SLT) in humans, the only species in which SLT can be directly assessed. Participants had clinically normal/near-normal hearing thresholds, were free of psychotropic medications, and comprised people with tinnitus and without. ASR was measured as eyeblink-related electromyographic activity in response to a noise pulse p…
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Publication date: Available online 28 February 2016 Source:Neuroimaging Clinics of North America Author(s): Timothy R. Miller, Yafell Serulle, Dheeraj GandhiTeaser Tinnitus is a common symptom that usually originates in the middle ear. Vascular causes of pulsatile tinnitus are categorized by the location of the source of the noise within the cerebral-cervical vasculature: arterial, arteriovenous, and venous. Arterial stenosis secondary to atherosclerotic disease or dissection, arterial anatomic variants at the skull base, and vascular skull base tumors are some of the more common causes of arterial and arteriovenous pulsatile tinnitus. Noninvasive imaging is indicated to evaluate for possible causes of pulsatile tinnitus, and should be followed by catheter angiography if there is a st…
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CONCLUSION: This is the first nationally representative study of tinnitus prevalence in New Zealand and largest study sample internationally for tinnitus prevalence to date. Tinnitus is a public health problem affecting approximately 207,000 people in the New Zealand population aged ≥14 years. This study has highlighted the importance of sex and age in defining a high-risk tinnitus population, but our knowledge falls short of profiling their ethnic and social-economic characteristics. PMID: 26922445 [PubMed - as supplied by publisher] (Source: New Zealand Medical Journal)
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Tinnitus is a common symptom that usually originates in the middle ear. Vascular causes of pulsatile tinnitus are categorized by the location of the source of the noise within the cerebral-cervical vasculature: arterial, arteriovenous, and venous. Arterial stenosis secondary to atherosclerotic disease or dissection, arterial anatomic variants at the skull base, and vascular skull base tumors are some of the more common causes of arterial and arteriovenous pulsatile tinnitus. Noninvasive imaging is indicated to evaluate for possible causes of pulsatile tinnitus, and should be followed by catheter angiography if there is a strong clinical suspicion for a dural arteriovenous fistula. (Source: Neuroimaging Clinics)
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Publication date: Available online 28 February 2016 Source:Neuroimaging Clinics of North America Author(s): Ronna Hertzano, Taylor B. Teplitzky, David J. EisenmanTeaser The clinical evaluation of patients with tinnitus differs based on whether the tinnitus is subjective or objective. Subjective tinnitus is usually associated with a hearing loss, and therefore, the clinical evaluation is focused on an otologic and audiologic evaluation with adjunct imaging/tests as necessary. Objective tinnitus is divided into perception of an abnormal somatosound or abnormal perception of a normal somatosound. The distinction between these categories is usually possible based on a history, physical examination, and audiogram, leading to directed imaging to identify the underlying abnormality. (Source:…
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This article describes the natural history, clinical presentation, classification, imaging features, and management options of intracranial DAVF. (Source: Neuroimaging Clinics of North America)
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This article describes the natural history, clinical presentation, classification, imaging features, and management options of intracranial DAVF. (Source: Neuroimaging Clinics)
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