Laser irradiation of the semicircular canal: Occlusion of the canal or duct.
The aim of this study was to evaluate the effects of argon laser irradiation of the semicircular canals using computed tomography (CT) images and to examine the basis for laser treatment for benign paroxysmal positional vertigo (BPPV). CT images of the posterior canal were evaluated postoperatively...
| Publicado en: | Acta Oto-Laryngologica Vol. 132; no. 1; pp. 106 - 112 |
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| Autores principales: | , |
| Formato: | case study diagnostic images pictorial research tables/charts Journal Article |
| Publicado: |
Taylor & Francis Ltd
Jan2012
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=104144426&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 104144426 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 00016489 B6D jtl: Acta Oto-Laryngologica issn: 00016489 maglogo: Y pubinfo: dt: Jan2012 vid: 132 iid: 1 pid: 377 pub: Taylor & Francis Ltd place: Philadelphia, Pennsylvania artinfo: ui: 104144426 91277342 10.3109/00016489.2011.622292 NLM22053860 104144426 ppf: 106 ppct: 6 formats: fmt: – @attributes: type: T – @attributes: type: P tig: atl: Laser irradiation of the semicircular canal: Occlusion of the canal or duct. aug: au: Nomura, Yasuya Kobayashi, Hitome affil: Department of Otorhinolaryngology, Showa University, Tokyo, Japan sug: subj: Semicircular Canals Surgery Tomography, X-Ray Computed Laser Therapy Vertigo Therapy Female Aged Ear Canal Injuries Human Male Adult Middle Age Descriptive Statistics Treatment Outcomes Data Analysis Software Confidence Intervals Audiometry, Pure-Tone Hearing Disorders Etiology Aged: 65+ years Adult: 19-44 years Middle Aged: 45-64 years Female Male ab: The aim of this study was to evaluate the effects of argon laser irradiation of the semicircular canals using computed tomography (CT) images and to examine the basis for laser treatment for benign paroxysmal positional vertigo (BPPV). CT images of the posterior canal were evaluated postoperatively in a patient with intractable BPPV, in whom the unilateral posterior and lateral semicircular canals were irradiated with an argon laser. In addition, bootstrap analysis of 20 patients with normal CT findings of the temporal bone was performed and previous experimentally obtained histologic findings were compared. Cross-sections of the posterior canals of 20 patients were found to show no difference in size between the right and left sides. The laser-irradiated posterior canal became narrower than that on the non-irradiated healthy side in our patient. There was a discrepancy between the CT images and experimentally obtained histologic findings that showed complete occlusion of the canal. CT images of a patient with severe vertigo demonstrated that argon laser irradiation to the blue-lined semicircular canals did not occlude the canal of the corresponding areas, while the canal of the guinea pig histologically showed complete obstruction with new bone after irradiation with the same energy (1.5 W, 0.5 s, spot size: around 200 μm in diameter). The patient has been free from vertigo for 16 years. Marked constriction of the semicircular duct corresponding to the irradiated area appeared to be effective in treating intractable BPPV. pubtype: Academic Journal doctype: case study diagnostic images pictorial research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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