Positional Nystagmus in Patients Evaluated for Dizziness and Imbalance

Table 1

Age, gender, and overall interpretation are shown for each patient with nystagmus. Nystagmus direction is also provided with slow phase velocity (°/s) in parentheses.

Age	Gender	Head/body positions					Interpretation
		Supine	Head right	Head left	Body right	Body left
92	F	—	—	—	L (3)	—	CNS
78	M	—	L (2)	—	—	—	PC-BPPV (R)
89	F	D (4)	—	—	—	—	MD
69	F	—	—	—	L (7)	R (15); D (8)	PC-BPPV (L)
83	F	—	L (6)	R (7)	—	—	PC-BPPV (R)
40	M	—	U (4)	—	—	—	UVD (L)
39	F	—	—	—	L (1)	—	BVD
64	M	—	—	—	—	L (4)	PC-BPPV (R), UVD (R)
54	M	—	—	L (4)	—	—	HC-BPPV (L)
37	F	U (3)	U (3)	—	—	—	NV
67	M	L (6)	—	—	—	—	MD
69	F	—	—	R (6)	L (1)	R (5)	PC-BPPV (L)
47	F	U (8)	—	U (2)	—	—	PC-BPPV (Bilateral)
82	M	R (2)	—	—	—	—	PC BPPV (L)
57	F	R (4)	R (2)	—	—	—	UVD (L)
72	F	L (5)	L (5)	R (5)	—	R (6)	CNS
66	F	U (4)	U (4)	—	—	—	Visual Preference
50	F	—	U (5)	U (4)	—	—	PC-BPPV (R)
81	F	—	—	—	L (5)	—	PC-BPPV (L)
76	M	—	—	R (4)	—	—	PC-BPPV (L)
65	M	—	R (2)	—	R (2)	—	PC-BPPV (L)
52	F	U (5)	U (6)	U (6)	—	—	NV
83	F	—	—	L (3)	—	—	PC-BPPV (R)
69	F	—	L (3)	D (5)	L (4)	D (3)	MD
45	F	—	—	—	U (20)	—	PC-BPPV (R)
63	F	—	—	L (2)	—	—	CNS
80	F	—	L (13)	R (3)	L (6)	R (4)	CNS
86	M	—	—	—	—	R (6)	MD
87	F	L (1)	L (5)	—	—	—	PC-BPPV (R)
71	M	R (1); D (5)	R (1); D (4)	—	—	—	CNS
52	F	D (4)	L (5) D (4)	R (4)	—	—	Cervicogenic
75	F	L (3)	L (15)	R (12)	L (13)	L (8)	CNS
34	F	—	—	L (2)	—	—	High freq. vestibulopathy
64	M	R (1)	D (2)	—	—	—	PC-BPPV (R)
70	M	U (1)	U (1)	U (1)	—	—	MD
52	M	R (3)	—	—	—	—	PC-BPPV (R)
75	F	D (1)	—	—	D (1)	D (1)	CNS
68	M	—	—	—	—	L (1)	UVD (R)
70	F	—	D (18)	—	—	—	PC-BPPV (L)
78	M	—	—	D (1)	—	—	MD
80	M	—	—	—	—	D (6)	NV
66	F	—	U (2)	R (2)	—	—	NV

CNS, central nervous system involvement; D, down; F, female; HC-BPPV, horizontal canal benign paroxysmal positional vertigo; L, left; M, male; MD, multifactorial disequilibrium; NV, nonvestibular involvement; PC-BPPV, posterior canal benign paroxysmal positional vertigo; R, right; U, up; UVD, unilateral vestibular dysfunction.