Histopathology after endolymphatic sac surgery for Ménière's syndrome.
Histopathology after endolymphatic sac surgery for Ménière's syndrome.
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DOI:
10.1097/mao.0b013e31821553ce
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发表时间:
2011-06
期刊:
影响因子:
--
通讯作者:
Merchant SN
中科院分区:
文献类型:
--
作者:
Chung JW;Fayad J;Linthicum F;Ishiyama A;Merchant SN
The putative goal of sac surgery in Meniere’s syndrome is to promote the flow of endolymph from the labyrinth to the endolymphatic sac, and thereby relieving hydrops. There is scant published histopathological data whether sac surgery actually accomplishes this goal. To determine if sac surgery relieves hydrops by examining the histopathologic changes in temporal bones obtained from individuals who had undergone sac surgery during life for Meniere’s syndrome. Temporal bones were examined from 15 patients who had sac surgery. Data was collected on presence and severity of hydrops, histology of the sac, and whether the procedure relieved vertigo. The surgery failed to expose the sac in 5 cases; 4 of the 5 had relief from vertigo. The sac was exposed, but the shunt failed to reach the lumen of the sac in 8 cases; 4 of the 8 had relief from vertigo. The shunt was successfully placed within the lumen of the sac in two cases; both cases failed to experience relief from vertigo. Endolymphatic hydrops was present in all 15 cases. Endolymphatic sac surgery does not relieve hydrops in patients with Meniere’s syndrome. Yet, sac surgery relieves vertigo in some patients, but the mechanism of such symptomatic relief remains unknown.