Table 2 Properties of vertigo
From: Isolated transient vertigo: posterior circulation ischemia or benign origin?
Total population (n = 339) | |
|---|---|
Type of vertigoa | |
Illusion of rotational movement, n (%) | 120 (35.4) |
Illusion of swaying movement, n (%) | 132 (38.9) |
Unclassifiable, n (%) | 101 (29.8) |
Vertigo frequency | |
Median, range (n/week) | 5/week, 1/week – 35/week |
Below median, n (%) | 40 (35.6 of noted) |
Median or higher, n (%) | 73 (64.4 of noted) |
Not noted, n (%) | 226 (66.7) |
Vertigo duration | |
Median, range (seconds) | < 60s, 1 s – 10.800 s |
Below median, n (%) | 84 (56.4 of noted) |
Median or higher, n (%) | 65 (43.6 of noted) |
Not noted, n (%) | 190 (56.0) |
Vertigo triggera | |
Spontaneous, n (%) | 200 (59.0) |
Turning the head, n (%) | 61 (18.0) |
Other change in body position, n (%) | 123 (36.3) |
Orthostatic stress, n (%) | 37 (10.9) |
Blood pressure-lowering situation, n (%) | 40 (11.8) |