Table 2 The video nystagmography (VNG) data of the participants
From: Could vertigo be a post-COVID-19 sequela or presenting symptom?
| Â | Post-Covid-19 patients | Close contacts |
|---|---|---|
(n=7) (%) | (n=37) (%) | |
Nystagmus | Â | Â |
 No | 0 (0) | 10 (27) |
 Gaze evoked | 2 (28.6) | 0 (0) |
 Positional | 5 (71.4) | 26 (70.3) |
 Mixed with Spontaneous | 0 (0) | 1 (2.7) |
Saccade | Â | Â |
 Normal | 7 (100) | 37 (100) |
Pursuit | Â | Â |
 Smooth | 7 (100) | 37 (100) |
Dix hall pike | Â | Â |
 Negative | 6 (85.7) | 21 (56.8) |
 Torsional nystagmus | 1 (14.3) | 12 (32.4) |
 Horizontal nystagmus | 0 (0) | 4 (10.8) |
OPK | Â | Â |
 Symmetric | 7 (100) | 37 (100) |
 Not symmetric | 0 (0) | 0 (0) |
Caloric test | Â | Â |
 Negative test | 1 (14.3) | 16 (43.2) |
 Right canal weakness | 2 (28.6%) | 11 (29.7) |
 Left canal weakness | 4 (57.1) | 10 (27) |
Final diagnosis | Â | Â |
BPPV | 1 (14.3) | 16 (43.2) |
 Posterior canal | 1 (100) | 12 (75) |
 Horizontal canal | 0 (0) | 4 (25) |
Vestibular neuritis | 6 (85.7) | 21 (56.8) |
 Right | 2 (33.3) | 11 (52.4) |
 Left | 4 (66.7) | 10 (47.6) |