半規管瘻孔
WordNet
- relating to or affecting or originating in the inner ear; "labyrinthine deafness"
- resembling a labyrinth in form or complexity; "a labyrinthine network of tortuous footpaths" (同)labyrinthian, mazy
- an abnormal passage leading from a suppurating cavity to the body surface (同)sinus
PrepTutorEJDIC
- 迷宮の,迷路の;迷路のような,入り組んだ
- 瘻(ろう)菅(長い菅状になった潰瘍)
Wikipedia preview
出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2016/08/26 14:12:54」(JST)
[Wiki en表示]
| Labyrinthine fistula |
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Cross-section of cochlea. Perilymph is located in the scala tympani and scala vestibuli - the aqua regions at the top and bottom of the diagram.
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| Classification and external resources |
| Specialty |
otolaryngology |
| ICD-10 |
H83.1 |
| ICD-9-CM |
386.4 |
| DiseasesDB |
32218 |
| eMedicine |
emerg/414 |
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[edit on Wikidata]
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A labyrinthine fistula is an abnormal opening in the bony capsule of the inner ear, resulting in leakage of the perilymph from the semicircular canals into the middle ear.[1] This includes specifically a perilymph fistula (PLF), an abnormal connection between the fluid of the inner ear and the air-filled middle ear. This connection is caused by a rupture of the oval window or round window that separate the inner and middle ear.[1] Another type of l.f. is a semicircular canal dehiscence, which allows the inner ear to be influenced by the intracranial pressure directly.
Contents
- 1 Cause
- 2 Signs and symptoms
- 3 Diagnosis
- 4 Treatment
- 5 References
- 6 External links
Cause
These can be both congenital or develop over time with the thinning of the otic capsule by the persistent pulsations of the intracranial pressures against the bones of the skull. Finally, disease conditions—for example cholesteatoma—can result in a labyrinthine fistula.[2] Traumatic events, with excessive pressure changes to the inner ear such as in scuba diving,[3] head trauma, or an extremely loud noise can lead to rupture and leakage.[1]
Signs and symptoms
PLF is a cause of dizziness, imbalance, and hearing loss—any or all of these symptoms can exist. Vertigo (an illusion of motion) is not common in this disorder. The most common cause of this fistula is head or ear trauma. Rapid increases of intracranial pressure can also result in a PLF. Rarely, these fistulas can be congenital, leading to progressive hearing loss and vertigo in childhood. It has also been a complication of a stapedectomy.
Diagnosis
When diagnosing, PLF should be differentiated from Ménière's disease. Tympanostomy has been reported to be a way to diagnose[4] and cure PLF.
Treatment
Patients are advised to treat with bed rest and avoiding activities that increase intracranial pressure (i.e. weightlifting, valsalva, scuba diving, flying in airplanes) with the hopes of the membrane healing on their own. Appropriate Physical therapy / vestibular rehabilitation techniques can be helpful in managing symptoms of movement sensitivity.[1]
References
- ^ a b c d O'Sullivan, Susan B. (2007). Physical Rehabilitation (Fifth ed.). Philadelphia: Davis Company. p. 1024.
- ^ Chen Z, Wu Y, Shi H, et al. (June 2009). "Surgical treatment of labyrinthine fistula caused by cholesteatoma with semicircular canal occlusion". Acta Otolaryngol.: 75–8. doi:10.3109/00016480902875083. PMID 20082558.
- ^ Donoghue, P; Knight, J. "The causation of perilymph fistulae in divers.". Journal of the South Pacific Underwater Medicine Society. 10 (2): 13–14. Retrieved 2013-09-22.
- ^ Goto F, Ogawa K, Kunihiro T, Kurashima K, Kobayashi H, Kanzaki J (January 2001). "Perilymph fistula--45 case analysis". Auris Nasus Larynx. 28 (1): 29–33. doi:10.1016/S0385-8146(00)00089-4. PMID 11137360.
External links
- http://www.dizziness-and-balance.com/disorders/unilat/fistula.html
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Diseases of the ear and mastoid process (H60–H99, 380–389)
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| Outer ear |
- Otitis externa
- Otomycosis
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Middle ear
and mastoid |
- Otitis media
- Mastoiditis
- Bezold's abscess
- Gradenigo's syndrome
- Tympanosclerosis
- Cholesteatoma
- Perforated eardrum
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Inner ear and
central pathways |
| Equilibrioception |
- Vertigo/Balance disorder: peripheral
- Ménière's disease
- BPPV
- Vestibular neuronitis (Labyrinthitis)
- Perilymph fistula
- central (Central positional nystagmus)
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| Hearing |
| Hearing impairment |
- Conductive hearing loss
- Otosclerosis
- Superior canal dehiscence
- Sensorineural hearing loss
- Presbycusis
- Cortical deafness
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| Excessive response |
- Tinnitus
- Hyperacusis/Phonophobia
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| Deafblindness |
- Wolfram syndrome
- Usher syndrome
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| Other |
- Auditory processing disorder
- Spatial hearing loss
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UpToDate Contents
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English Journal
- A retrospective study on post-operative hearing of middle ear cholesteatoma patients with labyrinthine fistula.
- Bo Y1, Yang Y1,2, Xiaodong C1, Xi W1, Keyong T1, Yu Z1, Ye W1, Kun L1, Zheng Y1, Yang C1, Jianhua Q1.
- Acta oto-laryngologica.Acta Otolaryngol.2015 Oct 23:1-4. [Epub ahead of print]
- CONCLUSIONS: There is no significant change in bone conduction threshold after operation, so the tympanoplasty can be done to maintain hearing when conditions allow.OBJECTIVE: To study the impact of surgical treatment on hearing of cholesteatoma patients with labyrinthine fistula.METHODS: The clinic
- PMID 26493192
- Some Remarks on Imaging of the Inner Ear: Options and Limitations.
- Giesemann A1, Hofmann E2.
- Clinical neuroradiology.Clin Neuroradiol.2015 Oct;25 Suppl 2:197-203. doi: 10.1007/s00062-015-0422-y. Epub 2015 Jul 8.
- The temporal bone has a highly complex anatomical structure, in which the sensory organs of the cochlea and the vestibular system are contained within a small space together with the sound-conducting system of the middle ear. Detailed imaging is thus required in this anatomical area. There are a gre
- PMID 26153464
- Glass ionomer cement in otological microsurgery: experience over 16 years.
- Righini-Grunder F1, Häusler R, Chongvisal S, Caversaccio M.
- European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery.Eur Arch Otorhinolaryngol.2015 Oct;272(10):2749-54. doi: 10.1007/s00405-014-3276-z. Epub 2014 Sep 10.
- A retrospective evaluation of glass ionomer cement (GIC) in middle ear surgery with emphasis on short- and long-term safety was conducted at the tertiary referral center. GIC was applied between 1995 and 2006 in 444 patients in otologic surgery. Technical aspects, safety, benefits and complications
- PMID 25209434
Japanese Journal
- 内耳瘻孔症例における骨導聴力の温存:—特に一側聴耳の手術に関して—
- A Case of Superior Canal Dehiscence Treated by Resurfacing the Superior Canal Defect via the Transmastoid Approach
Related Links
- labyrinthine fistula a fistula between a fluid-filled compartment of the inner ear and another fluid-filled compartment in the inner ear (internal) or a space external to the inner ear as the middle ear or mastoid air cells or subarachnoid ...
- Labyrinthine fistula symptoms, causes, diagnosis, and treatment information for Labyrinthine fistula (Perilymphatic fistula) with alternative diagnoses, full-text book chapters, misdiagnosis, research treatments, prevention, and ...
★リンクテーブル★
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- 英
- semicircular canal fistula
- 同
- 骨半規管瘻孔、内耳瘻孔、迷路瘻孔 labyrinthine fistula
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