Articles: vertigo.
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The aim of this study was to perform a realistic visualization of the auditory and vestibular system using volume data sets from high-resolution computed tomography (HR-CT) and high-resolution magnetic resonance imaging (HR-MRI). - In 10 patients with conductive and/or sensorineural hearing loss, vertigo and tinnitus, HR-CT and HR-MRI of the petrous bone were performed consecutively. CT was performed with a 16-slice computed tomography scanner using a high spatial resolution. MRI was performed with a 3.0 Tesla scanner using a three-dimensional-constructive interference in steady state (3D-CISS) gradient-echo, and T2-weighted, unenhanced and gadolinium (GD)-enhanced T1-weighted turbo spin-echo sequences. ⋯ Finally, both shaded-surface rendered models were superimposed semi-automatically using a commercial available software program to visualize the auditory and vestibular system. - The representation of the middle and inner ear structures with image fusion of HR-CT and HR-MRI takes advantage of both the high bony contrast of HR-CT and the high soft tissue contrast discrimination and sensitivity to fluids of HR-MRI, as well as the high spatial resolution of both modalities. In comparison to the fused axial CT/MRI, the images of 3D CT/MRI fusion facilitates a clear representation and better spatial orientation. - The middle and inner ear consists of bony structures, soft tissue structures and fluid-filled spaces. For this reason, the image fusion of volume data sets from HR-CT and HR-MRI allowed an optimized and realistic visualization of the auditory and vestibular system.
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To investigate whether migraine is more common in patients with benign paroxysmal positional vertigo (BPPV) than in the general population, the author conducted a retrospective study of 476 patients with BPPV seen over 12 years at a tertiary referral center. Records of patients with a confirmed diagnosis of BPPV followed for 1 to 7 years were reviewed. The typical history of BPPV and the characteristic torsional positional nystagmus were identified in all patients. ⋯ The survey consisted of detailed patient questionnaires and vestibular tests. Migraine and motion sickness were three times more common in patients with BPPV than in the general population. A family history of migraine (58.4%) and vertigo (44.9%) was also more common in patients than in a control group.
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Dizziness and vertigo--like headache--are the most common complaints which leads patients to visit the doctor. In spite of the headache--which may be primary (e.g. migraine) or symptomatic--dizziness and vertigo do not appear to be a separate nosologic entity but rather the symptoms of several neurological disorders. For differential diagnosis, interdisciplinary thinking and activity is needed because the vestibular, neurological and psychiatric disorders might have a common role in the development of symptoms and further overlapping can also occur. ⋯ The author draws attention to life-threatening conditions with acute onset in cases of the posterior scale ischemia and emphasizes the importance of the correct and early diagnosis. The author tries to clear up the nihilistic aspect in treating of stroke and stresses the necessity of thrombolysis and interventional radiological procedures which may be the only chance for the recovery of the patients. The pharmacological prevention of recurrent vascular events is also important and obligatory for the clinicians.
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Bull Soc Pathol Exot · Nov 2004
Case Reports[Neurocysticercosis complicating the treatment of cutaneous cysticercosis in a traveller].
Cysticercosis is an helminthic disease which is usually observed in endemic areas or in immigrants coming from these areas. Cases described in travellers coming back from endemic areas are rare. ⋯ This reaction occurred during the early phase of the treatment of cutaneous cysticercosis by albendazole in a tourist coming back from the sub Indian continent. This case report leads to discuss the modes of infestation in tourists, and the management of cutaneous cysticercosis and paradoxical reaction that may impair the outcome of cysticercosis during the treatment with antihelminthic drugs.
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Vertigo is a frequently encountered complaint among aviators. This complaint is usually labyrinthine in origin. We present a case of a combat jet fighter pilot who experienced a vertiginous episode during flight that nearly resulted in a mishap. ⋯ Coiling of the aneurysm was performed. This case emphasizes the importance of performing a complete vestibular evaluation in aviators with acute vertigo. Since central nervous system causes may be responsible for vertiginous events, and when undiagnosed may result in a recurrence during flight, magnetic resonance scanning should be considered in those with no obvious peripheral cause for their vertigo.