Table 2.

Summary of published reports of EH in patients that were not clinically classified as definite Meniére’s disease

Entity	N	With EH (%)	Remarks	References
FLFSNHL	1	1 (100 %)		[73]
	8	6 (80 %)		[74]
	56 ears	38 cochlear EH, 44 vestibular EH	No. of patients with EH not given	[75]
	1	1 (100 %)		[76]
	1	1 (100 %)		[77]
	3	3 (100 %)		[78]
	43	40 (93 %)		[28]
	8	8 (100 %)	All had EH in Cochlea and Vestibulum. The two cases with severe vestibular EH had absent VEMP	[79]
	5	5 (100 %)		[80]
ALFSNHL	1	1 (100 %)		[81]
	2	2 (100 %)	Both had EH in the apical cochlear regions	[82]
RPV	64	31 (48 %)	All patients had horizontal Nystagmus during attacks	[83]
	3	0 (0 %)		[74]
	1	0 (0 %)		[84]
	56	29 cochlear EH, 47 vestibular EH	No. of patients with EH not given	[75]
	2	1 (50 %)		[85]
	2	2(100 %)	EH was more pronounced in Vestibulum in all 3 cases	[78]
	17	15 (88 %)		[28]
SSNHL+V	7	4 (57 %)	Average hearing loss was 90 dB.	[86]
SSNHL	8	2 (25 %)	EH in Cochlea and Vestibulum. MRI at 2 and 11 months after SSNHL. Interpreted as DEH cases	[87]
	4	0 (0 %)		[74]
	1	0 (0 %)	HL was 68 dB	[85]
hSCC malformation	11	9 (82 %)	6 cases had severe EH	[88]
DEH	11	8		[74]
	7	7 (100 %)	Most had EH in both Cochlea and Vestibulum	[89]
	2	2 (100 %)		[82]
	1	1 (100 %)		[85]
	5	5 (100 %)		[90]
	2	2 (100 %)		[80]
VS	13	4 (31 %)	Only the vestibulum could be analyzed	[91]
LVAS	1	1 (100 %)		[85]

N number of patients, FLSNHL Fluctuating low frequency sensorineural hearing loss, ALFSNHL acute low frequency sensorineural hearing loss, RPV recurrent peripheral vestibulopathy, SSNHL+V sudden sensorineural hearing loss with vertigo, SSNHL sudden sensorineural hearing loss, hSCC horizontal semicircular canal, DEH delayed endolymphatic hydrops, VS vestibular schwannoma, LVAS large vestibular aquaeduct syndrome