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Table 1 Clinical profiles of all 27 patients, including case nos. 1–10 in the EDB group (n = 10), case nos. 11–19 in the EDD group (n = 9) and case nos. 20–27 in the ESD group (n = 8)

From: A comparison of endolymphatic duct blockage, endolymphatic sac drainage and endolymphatic sac decompression surgery in reversing endolymphatic hydrops in Meniere’s disease

Case no. Age/gender Side endolymphatic sac surgery Disease of duration (months) Hearing (dB) Vertigo Attacks (a/mon) EVVR (%) CH Follow-up (months)
Pre Post Pre Post First Second Third First Second Third
1 37/M L EDB 10 53.8. 47.5 4.2 1.8 56.42 58.25 59.55 I I I 21
2 39/F R EDB 22 42.5 27.5 3.8 0 74.68 76.55 15.45 I I N 20
3 61/F L EDB 14 57.5 62.5 3.8 0.7 46.55 45.60 52.10 I I I 19
4 52/F L EDB 16 41.3 57.5 3.0 3.3 37.85 39.80 52.30 I I II 18
5 46/M R EDB 32 58.8 38.8 2.5 0 82.65 84.35 47.45 II II II 18
6 48/M R EDB 16 52.5 56.3 2.5 0 54.55 58.75 46.25 I I I 16
7 62/F R EDB 66 48.8 21.3 4.3 0 78.73 82.45 13.89 II II I 16
8 48/M L EDB 12 42.5 45 3.7 1.7 41.30 40.28 45.15 I I I 15
9 52/M L EDB 42 62.5 60 2.5 0 66.82 68.30 64.25 II II II 14
10 49/F R EDB 12 45 46.3 3.3 0 50.65 53.58 47.48 I I 1 13
11 29/F R EDD 45 63.8 60 4.2 0.5 78.65 76.45 79.35 II II II 26
12 49/M L EDD 12 52.5 67.5 3.3 0 72.55 18.25 25.35 I N N 22
13 48/M R EDD 36 57.5 63.8 2.8 1.8 66.45 68.33 78.66 II II II 17
14 66/F L EDD 55 65 68.8 4.0 0 62.56 12.25 65.30 I N N 17
15 39/F R EDD 24 43.8 28.8 2.5 0 52.66 15.30 18.35 I N N 15
16 62/F L EDD 18 60 57.5 4.3 0 65.60 10.20 18.25 II N N 15
17 47/F L EDD 13 37.5 35 3.8 0 56.44 54.80 52.46 I I I 15
18 56/M R EDD 72 65 77.5 3.0 0.8 72.22 74.55 76.36 II II II 14
19 37/F L EDD 11 27.5 33.8 1.8 0.5 48.35 51.25 54.64 I I I 13
20 73/F R ESD 96 72.5 77.5 1.5 1.2 81.75 83.55 79.45 II II II 24
21 40/F R ESD 30 57.5 51.3 2.8 0.8 63.30 66.66 64.25 II II II 18
22 37/F R ESD 24 47.5 32.5 1.8 0.5 48.85 49.40 45.36 I I I 18
23 60/M L ESD 48 65 72.5 1.5 0 72.30 76.35 70.22 II II II 15
24 39/M L ESD 18 42.5 48.8 3.0 2.3 52.55 54.33 57.28 I I I 15
25 49/F R ESD 42 52.5 57.5 3.3 0.7 58.25 61.30 63.45 II II II 14
26 45/M L ESD 11 37.5 48.8 2.5 2.3 45.72 49.35 55.36 I I I 14
27 52/F R ESD 26 55 51.3 1.8 0 55.65 58.56 59.18 I I I 13
  1. The bold number represents a reduction in endolymphatic hydrops or hearing improvement, whereas the underlined number represents an increase in endolymphatic hydrops or hearing worsening prior to and following surgery
  2. a/mon, attacks per month; EVVR, endolymph to vestibule-volume ratio; CH, cochlear hydrops; Pre, pre-surgery; Post, post-surgery; F, female; M, male; R, right; L, left; Mon, month; N, no endolymphatic hydrops; I, mild endolymphatic hydrops; II, significant endolymphatic hydrops; EDB, endolymphatic duct blockage, EDD, endolymphatic sac drainage, ESD, endolymphatic sac decompression