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Möhwald, K.; Hadzhikolev, H.; Bardins, S.; Becker-Bense, S.; Brandt, T.; Grill, Eva; Jahn, K.; Dieterich, M. and Zwergal, Andreas (2020): Health-related quality of life and functional impairment in acute vestibular disorders. In: European Journal of Neurology, Vol. 27, No. 10: pp. 2089-2098 [PDF, 1MB]


BACKGROUND AND PURPOSE Acute vestibular symptoms have a profound impact on patients' well-being. In this study, health-related quality of life (HRQoL) and functional impairment were investigated prospectively in patients with different peripheral and central vestibular disorders during the acute symptomatic stage to decipher the most relevant underlying factors. METHODS In all, 175 patients with acute vestibular disorders were categorized as central vestibular (CV, n~=~40), peripheral vestibular (PV, n~=~68) and episodic vestibular disorders (EV, n~=~67). All patients completed scores to quantify generic HRQoL (European Quality of Life Score Five Dimensions Five Levels, EQ-5D-5L) and disease-specific HRQoL (Dizziness Handicap Inventory, DHI). Vestibular-ocular motor signs were assessed by video-oculography, vestibular-spinal control by posturography and verticality perception by measurement of subjective visual vertical. RESULTS Patients with PV had a poorer HRQoL compared to patients with CV and EV (EQ-5D-5L/DHI: PV, 0.53~±~0.31/56.1~±~19.7; CV, 0.66~±~0.28/43.3~±~24.0; EV, 0.75~±~0.24/46.7~±~21.4). After adjusting for age, gender, cardiovascular risk factors and non-vestibular brainstem/cerebellar dysfunction patients with PV persisted to have poorer generic and disease-specific HRQoL (EQ-5D-5L -0.17, DHI +11.2) than patients with CV. Horizontal spontaneous nystagmus was a highly relevant factor for subgroup differences in EQ-5D-5L and DHI, whilst vertical spontaneous nystagmus, subjective visual vertical and sway path were not. EQ-5D-5L decreased significantly with more intense horizontal subjective visual vertical in CV (rho~=~-0.57) and PV (rho~=~-0.5) but not EV (rho~=~-0.13). CONCLUSIONS Patients with PV have the highest functional impairment of all patients with acute vestibular disorders. Vestibular-ocular motor disturbance in the yaw plane has more impact than vestibular-spinal or vestibular-perceptive asymmetry in the roll and pitch plane, suggesting that horizontal visual stability is the most critical for HRQoL.

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