Table 2.
Dizziness as clinical onset symptom reported in literature.
| References | Study | Dizziness | % | Hearing or Vestibular impairment |
|---|---|---|---|---|
| Chen T. et al., 2020 | Retrospective study | Dizziness | 7.66% | |
| Chern et al., 2021 | Case report | Bilateral sudden sensorineural hearing loss, bilateral aural fullness, and vertigo | ||
| Chirakkal et al., 2020 | Case report | Hearing loss and tinnitus | ||
| Correia et al., 2020 | Systematic review | Dizziness | 13.9 % | |
| Degen et al., 2020 | Case report | Asymmetric and bilateral sudden hearing loss and tinnitus | ||
| Di Carlo et al., 2020 | Systematic review | Dizziness | 13.9 % | |
| Fadakar et al., 2020 | Case report | Progressive vertigo in cerebellitis | ||
| Fidan, 2020 | Case report | Acute otitis media, hearing loss, and tinnitus | ||
| Hu Z. et al., 2020 | Retrospective study | Dizziness | 4% | |
| Iltaf et al., 2020 | Cross-sectional study | Vertigo | 3.4% | |
| Sia, 2020 | Case Report | Dizziness | ||
| Karadaş et al., 2020 | Prospective clinical study | Dizziness | 6.7% | |
| Karimi-Galougahi et al., 2020 | Case series | 6 pts with acute-onset hearing loss and/or vertigo | ||
| Kilic et al., 2020 | Case report | Sudden hearing loss | ||
| Klironomos et al., 2020 | Retrospective study (one case) | Vestibular neuronitis | ||
| Lamounier et al., 2020 | Case report | Sudden hearing loss | ||
| Liu et al., 2020b | Case report | Vertigo | ||
| Lon et al., 2020 | Cross-sectional | Dizziness | 20% | |
| Maharaj and Hari, 2020 | Case report | Vertigo and tinnitus | ||
| Maharaj et al., 2020 | Systematic review | 100% hearing loss, 10% associated vestibular symptoms | ||
| Malayala and Raza, 2020 | Case report | Acute vestibular neuritis | ||
| Mao et al., 2020 | Retrospective study | Dizziness | 16.8% | |
| Mi et al., 2020 | Retrospective study | Dizziness | 33% | |
| Özçelik Korkmaz et al., 2020 | Case series | Dizziness | 31.8% | Tinnitus (11%), true vertigo (6%), hearing impairment (5.1%) |
| Qin et al., 2020 | Case series | Dizziness | 8.1% | |
| Romero-Sánchez et al., 2020 | Retrospective study | Dizziness | 6.1% | |
| Shahriarirad et al., 2020 | Case series | Dizziness/vertigo | 39.8% | |
| Sriwijitalai and Wiwanitkit, 2020 | Case series | Six cases of patients with sudden hearing loss | ||
| Sun et al., 2020 | Case report | Bilateral hearing loss and tinnitus | ||
| Viola et al., 2020 | Multicentric study | Dizziness | 94.1% | Thirty-four patients (18.4%) reported equilibrium disorders after COVID-19 diagnosis. Of these, 32 patients reported dizziness (94.1%) and 2 (5.9%) reported acute vertigo attacks. Forty-three patients (23.2%) reported tinnitus; 14 (7.6%) reported both tinnitus and equilibrium disorders. |
| Wang D. et al., 2020 | Case series | Dizziness | 6.5% | |
| Zhong et al., 2020 | Retrospective study | Dizziness | 10.4% |