Biomaterial Database

Positional nystagmus. 1988

U Rosenhall

Department of Audiology, Sahlgrenska Sjukhuset, Gothenburg, Sweden.

Positional nystagmus (PN) appears in certain positions of the head. The peripheral type of PN is a paroxysmal nystagmus which appears after a latent period and which has both adaptation and fatigability. Positional vertigo of the peripheral type can sometimes be related to middle ear affections or head trauma, causing detachment of otoconia in the vestibular apparatus. The condition can also be correlated to disturbed blood circulation, ageing, vascular loops and Borreliosis. PN of the central type is direction changing and does not have a latent period or adaptation and fatigability. Etiological factors are drugs, posterior fossa tumours, vascular disturbance and multiple sclerosis.

UI	MeSH Term	Description	Entries
D009759	Nystagmus, Pathologic	Involuntary movements of the eye that are divided into two types, jerk and pendular. Jerk nystagmus has a slow phase in one direction followed by a corrective fast phase in the opposite direction, and is usually caused by central or peripheral vestibular dysfunction. Pendular nystagmus features oscillations that are of equal velocity in both directions and this condition is often associated with visual loss early in life. (Adams et al., Principles of Neurology, 6th ed, p272)	Convergence Nystagmus,Horizontal Nystagmus,Jerk Nystagmus,Pendular Nystagmus,Periodic Alternating Nystagmus,Rotary Nystagmus,See-Saw Nystagmus,Vertical Nystagmus,Conjugate Nystagmus,Dissociated Nystagmus,Fatigable Positional Nystagmus,Multidirectional Nystagmus,Non-Fatigable Positional Nystagmus,Permanent Nystagmus,Rebound Nystagmus,Retraction Nystagmus,Rotational Nystagmus,Spontaneous Ocular Nystagmus,Symptomatic Nystagmus,Temporary Nystagmus,Unidirectional Nystagmus,Non Fatigable Positional Nystagmus,Nystagmus, Conjugate,Nystagmus, Convergence,Nystagmus, Dissociated,Nystagmus, Fatigable Positional,Nystagmus, Horizontal,Nystagmus, Jerk,Nystagmus, Multidirectional,Nystagmus, Non-Fatigable Positional,Nystagmus, Pendular,Nystagmus, Periodic Alternating,Nystagmus, Permanent,Nystagmus, Rebound,Nystagmus, Retraction,Nystagmus, Rotary,Nystagmus, Rotational,Nystagmus, See-Saw,Nystagmus, Spontaneous Ocular,Nystagmus, Symptomatic,Nystagmus, Temporary,Nystagmus, Unidirectional,Nystagmus, Vertical,Ocular Nystagmus, Spontaneous,Pathologic Nystagmus,Positional Nystagmus, Non-Fatigable,See Saw Nystagmus
D010523	Peripheral Nervous System Diseases	Diseases of the peripheral nerves external to the brain and spinal cord, which includes diseases of the nerve roots, ganglia, plexi, autonomic nerves, sensory nerves, and motor nerves.	Peripheral Nerve Diseases,Peripheral Neuropathies,PNS (Peripheral Nervous System) Diseases,PNS Diseases,Peripheral Nervous System Disease,Peripheral Nervous System Disorders,Nerve Disease, Peripheral,Nerve Diseases, Peripheral,Neuropathy, Peripheral,PNS Disease,Peripheral Nerve Disease,Peripheral Neuropathy
D011187	Posture	The position or physical attitude of the body.	Postures
D002493	Central Nervous System Diseases	Diseases of any component of the brain (including the cerebral hemispheres, diencephalon, brain stem, and cerebellum) or the spinal cord.	CNS Disease,Central Nervous System Disease,Central Nervous System Disorder,CNS Diseases,Central Nervous System Disorders
D006257	Head	The upper part of the human body, or the front or upper part of the body of an animal, typically separated from the rest of the body by a neck, and containing the brain, mouth, and sense organs.	Heads
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D014717	Vertigo	An illusion of movement, either of the external world revolving around the individual or of the individual revolving in space. Vertigo may be associated with disorders of the inner ear (EAR, INNER); VESTIBULAR NERVE; BRAINSTEM; or CEREBRAL CORTEX. Lesions in the TEMPORAL LOBE and PARIETAL LOBE may be associated with FOCAL SEIZURES that may feature vertigo as an ictal manifestation. (From Adams et al., Principles of Neurology, 6th ed, pp300-1)	CNS Origin Vertigo,Central Nervous System Origin Vertigo,Positional Vertigo,Spinning Sensation,Vertigo, Brain Stem,Vertigo, Brainstem,Vertigo, Central Nervous System Origin,Vertigo, Central Origin,Vertigo, Constant,Vertigo, Essential,Vertigo, Intermittant,Vertigo, Paroxysmal,Vertigo, Peripheral,Vertigo, Subjective,Brain Stem Vertigo,Brain Stem Vertigos,Brainstem Vertigo,Brainstem Vertigos,CNS Origin Vertigos,Central Origin Vertigo,Central Origin Vertigos,Constant Vertigo,Constant Vertigos,Essential Vertigo,Essential Vertigos,Intermittant Vertigo,Intermittant Vertigos,Origin Vertigo, CNS,Origin Vertigo, Central,Origin Vertigos, CNS,Origin Vertigos, Central,Paroxysmal Vertigo,Paroxysmal Vertigos,Peripheral Vertigo,Peripheral Vertigos,Sensation, Spinning,Sensations, Spinning,Spinning Sensations,Subjective Vertigo,Subjective Vertigos,Vertigo, CNS Origin,Vertigo, Positional,Vertigos,Vertigos, Brain Stem,Vertigos, Brainstem,Vertigos, CNS Origin,Vertigos, Central Origin,Vertigos, Constant,Vertigos, Essential,Vertigos, Intermittant,Vertigos, Paroxysmal,Vertigos, Peripheral,Vertigos, Subjective