PMID: 9549148Jan 1, 1997Paper

In-depth study of the causes of sudden deafness. Physiopathological mechanisms and their reversal

Anales otorrinolaringológicos ibero-americanos
H GuiralE Figuerola

Abstract

This article deals with an investigative work done by the AA. with the aim of determine the final cause of sudden sensorial deafness. Three causes are accepted as source of sudden deafness: viral infections, the tear away of labyrinthine membranes and the vascular theory. An increase in antibody titer suggest a viral origin. The labyrinthine membranes split has been observed at times when performing an exploratory tympanotomy. But circulatory troubles are hardly diagnosed, even with histopathological evidences of vascular upsets in temporal bones belonging to patients who suffered from an auditory stroke, because there are no diagnostic tests for "in vivo" control. Our intend is to investigate on the physiopathology of unforeseen deafness and also try to know the possible mechanisms of reversion of this calamitous pathology. We use, as investigative method of actual vascular changes in sudden deafness, the following; the speed analysis of the blood flow furnished by the A. labyrinthi through echography Doppler color transcranialis and angiography and magnetic resonance (Angio-MR). Both procedures are non invasive and harmless. We comment the findings of 13 patients. And find out, in 4 cases, an important trouble of the arterial...Continue Reading

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