%0 Journal Article %T Acute-Phase Inflammatory Response in Idiopathic Sudden Deafness: Pathogenic Implications %A Miguel A. L¨®pez-Gonz¨¢lez %A Antonio Abrante %A Carmen L¨®pez-Lorente %A Antonio G¨®mez %A Emilio Dom¨ªnguez %A Francisco Esteban %J International Journal of Otolaryngology %D 2012 %I Hindawi Publishing Corporation %R 10.1155/2012/216592 %X The acute-phase inflammatory response in the peripheral bloodstream can be an expression of transient cerebral ischaemia in idiopathic sudden deafness. For this, a neurological and otorhinolaryngological examination of each patient, performing tests on audiometry, and tympanometry, haemogram, and cranial magnetic resonance were performed. The acute-phase inflammatory response manifests as an increased neutrophil/lymphocyte ratio that is detected 48–72 hours after the appearance of sudden deafness. This study shows that there is an acute-phase response in the peripheral bloodstream with an increased neutrophil/lymphocyte ratio as an expression of an inflammatory process that can be caused by transient cerebral ischaemia in sudden deafness. In addition, the increased neutrophil/lymphocyte ratio can rule out a viral origin of sudden deafness, since a viral infection lowers the neutrophil count and increases the lymphocyte count, thus reducing the neutrophil/lymphocyte ratio. These findings aid in understanding the pathogenic mechanisms involved in sudden deafness and offer better treatment to the patient. %U http://www.hindawi.com/journals/ijol/2012/216592/