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Neurotology Open Access
Viral infection is the most frequent cause of unilateral acute peripheral vestibulopathy (APV). Another possible cause is a vascular disorder in the labyrinth area associated with alterations in hemostasis. In a group of 45 patients with APV and in a series of 25 patients with Meniere's disease (control group), we evaluated blood parameters, including total cholesterol, triglycerides, apolipoprotein A and B, lipoprotein (a), homocysteine, folate, prothrombin time, activated partial thromboplastin time, D-dimer, fibrinogen, antithrombin III, protein C, protein S, activated protein C resistance, and anticardiolipin antibodies. In the acute phase of their disease, the patients with APV exhibited increased plasma levels of fibrinogen (341.5 ± 136.8 standard deviation [SD] versus 268.1 ± 72.6 SD mg/dl;p = .05); increased plasma levels ofD-dimer (305 ± 158 SD versus 201 ± 106 SD ng/dl;p = .008); enhanced plasma levels of lipoprotein (a) (42.6 ± 38.5 SD versus 16.9 ± 17.7 SDmg/dl; F = 5.67,p = .02); high leukocyte count (9.2 ± 2.7 SD versus 6.4 ± 1.2 SD X 1Q3/J.L1; F = 8.42,p < .006); and low serum folate concentration (5.1 ± 1.7 SD versus 7.2 ± 2.6 SD ng/ml; F = 4.34 ,p = .04). During follow-up, the prothrombin time was prolonged (p = .04), and leukocyte count was decreased (p < .019) in the patients with APV, whereas fibrinogen, D-dimer, lipoprotein (a), and folate were unchanged. In this study, we demonstrated that patients with APV exhibit significant involvement of the hemostatic system.
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Author(s): Bruno Fattori Andrea Nacci PL Pier Luigi Ghilardi Luca Bruschini Fabio Matteucci and Francesco Ursino
Acute unilateral vestibular dysfunction, D-dimer, fibrinogen, hemostatic system, leukocyte count, lipoprotein