[Role of the labyrinthine artery in the development of sensorineural hearing loss].
8 patients with acute neurosensory hypoacusis (NSHA) and 8 patients with chronic NSHA were examined clinically, otoneurologically, underwent rheoencephalography, dopplerography, vertebral digital subtraction angiography according to Stenvers. There existed no changes in the major vertebrogenic vessels, but blood flow along the artery of the labyrinth was slow, the artery itself was either noncontrast or identified by the basilar artery branch, i.e. presents as a long thin vessel easily responsive to each factor producing vibration. Severe chronic cochlear NSHA occurs more frequently in patients in whom angiography fails to register the artery of the labyrinth. The latter is recorded in cases of acute acalar NSHA. The latter patients have more favourable prognosis in respect to hearing thresholds. Thus, NSHA patients have anatomical or pathological abnormalities influencing the disease degree and clinical course.
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D000328:Adult; D000367:Age Factors; D000368:Aged; D015901:Angiography, Digital Subtraction; D001158:Arteries; D007758:Ear, Inner / Q000098:blood supply*; D005260:Female; D006319:Hearing Loss, Sensorineural / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000209:etiology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D013997:Time Factors
Rol' labirintnoĭ arterii v razvitii neĭrosensornoĭ tugoukhosti.