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  • Title: Heparin-Induced extracorporeal low-density lipoprotein precipitation apheresis: a new therapeutic concept in the treatment of sudden hearing loss.
    Author: Suckfüll M.
    Journal: Ther Apher; 2001 Oct; 5(5):377-83. PubMed ID: 11778923.
    Abstract:
    Vascular events, immunological processes, and viral infections have to be considered as pathomechanisms for most cases of sudden hearing loss (SHL). In order to clarify predisposing conditions for vascular events. hemorheological parameters have been studied in 53 patients suffering from SHL within 5 days of onset, along with a control group. The striking result was a significantly elevated level of plasma fibrinogen leading to a significantly increased erythrocyte aggregation and plasma viscosity. No significant difference could be found in all other parameters of clinical chemistry, hematology, and hemostasis. These results encouraged us to use heparin-induced extracorporeal low-density lipoprotein (LDL) precipitation (HELP) apheresis, which acutely and drastically reduces LDL. fibrinogen, and lipoprotein (a) in the treatment of patients suffering from sudden hearing loss and hyperfibrinogenemia or hypercholesterolemia. In a pilot study including 30 patients, we found a better recovery of hearing in the patients treated with a single HELP apheresis when compared to conventional treatment for 10 days with prednisolone and dextranes. Currently, we verify these results in a larger multicenter trial in patients regardless of their fibrinogen or LDL levels. In the future, there will be different specific treatments of sudden hearing loss based on the different pathomechanisms. The clinical impression and first controlled data make it likely that HELP apheresis is useful in the therapy of sudden hearing loss with suspected vascular origin.
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