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Παρασκευή 5 Μαΐου 2017

A sustained increase of plasma fibrinogen in sudden sensorineural hearing loss predicts worse outcome independently

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Publication date: Available online 5 May 2017
Source:American Journal of Otolaryngology
Author(s): Yoon Ah. Park, Tae Hoon Kong, Young Joon Seo
ObjectivesA number of etiologies of idiopathic sudden sensorineural hearing loss (ISSNHL) have been proposed. Vascular disturbance is one cause of ISSNHL and has been reported to be associated with fibrinogen. We aimed to determine whether hyperfibrinogenemia is associated with poor outcome and whether a serial change in fibrinogen level is associated with outcome.MethodsTwenty-two patients with ISSNHL were enrolled. We compared the levels of fibrinogen in ISSNHL groups classified as improved and non-improved according to improvement of hearing. Blood samples were also collected from patients who visited the emergency room with coronary heart disease (CHD) as the control group.ResultsInitial fibrinogen level was significantly different between the non-improved and improved ISSNHL group (350.63±87.20 vs. 310.71±81.06. The improved ISSNHL group showed a "surge phenomenon", in which fibrinogen started to decrease at day 5 and increased at day 26. In the non-improved group, fibrinogen remained elevated throughout the course of therapy.ConclusionIt is important to measure not only the initial fibrinogen level but also to monitor its change throughout the course of therapy in order to predict the outcome of ISSNHL.



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