Table 3: Clinical and surgical data of the operated patients.
|
Study variables |
Sample (N = 76) |
Tear < 180° (N = 44) |
Tear 180-270° (N = 21) |
Tear > 270° (N = 11) |
p-value |
|
Macula at surgery (N, %): |
0.219 |
||||
|
Macula-on |
15 (19.7%) |
7 (15.9%) |
7 (33.3%) |
1 (9.09%) |
|
|
Macula-off |
61 (80.3%) |
37 (84.1%) |
14 (66.7%) |
10 (90.9%) |
|
|
Recurrent RRD (N, %) |
18 (23.7%) |
8 (18.2%) |
8 (38.1%) |
2 (18.2%) |
0.253 |
|
Recurrence cause (N, %): |
0.363 |
||||
|
None |
58 (76.3%) |
36 (81.8%) |
13 (61.9%) |
9 (81.8%) |
|
|
PVR |
12 (15.8%) |
4 (9.09%) |
6 (28.6%) |
2 (18.2%) |
|
|
PVR+choroidals |
5 (6.58%) |
3 (6.82%) |
2 (9.52%) |
0 (0.00%) |
|
|
Undetected macular hole |
1 (1.32%) |
1 (2.27%) |
0 (0.00%) |
0 (0.00%) |
|
|
Tamponade type (N, %): |
0.020 |
||||
|
C3F8 |
53 (69.7%) |
36 (81.8%) |
12 (33.3%) |
5 (9.09%) |
|
|
Silicon |
23 (30.3%) |
8 (18.2%) |
9 (42.9%) |
6 (54.5%) |
|
|
Additional surgery (N, %): |
0.300 |
||||
|
None |
56 (73.7%) |
35 (79.5%) |
12 (57.1%) |
9 (81.8%) |
|
|
Silicon removal |
2 (2.63%) |
1 (2.27%) |
1 (4.76%) |
0 (0.00%) |
|
|
Vitrectomy revision |
18 (23.7%) |
8 (18.2%) |
8 (38.1%) |
2 (18.2%) |
|
|
Postop ERMs |
18 (23.7% |
12 (27.3%) |
4 (19.0%) |
2 (18.2%) |
0.745 |
|
ERM surgery (N, %): |
0.899 |
||||
|
ERM removal |
8 (10.5%) |
6 (13.6%) |
1 (4.76%) |
1 (9.09%) |
|
|
None |
58 (76.3%) |
32 (72.7%) |
17 (81.0%) |
9 (81.8%) |
|
|
Vitrectomy revision + ERM removal |
10 (13.2%) |
6 (13.6%) |
3 (14.3%) |
1 (9.09%) |
|
|
Other complications (N, %): |
0.451 |
||||
|
Macular fold |
9 (11.8%) |
5 (11.4%) |
4 (19.0%) |
0 (0.00%) |
|
|
None |
61 (80.3%) |
36 (81.8%) |
16 (76.2%) |
9 (81.8%) |
|
|
Retained PFCL |
5 (6.58%) |
2 (4.55%) |
1 (4.76%) |
2 (18.2%) |
|
|
Undetected macular hole |
1 (1.32%) |
1 (2.27%) |
0 (0.00%) |
0 (0.00%) |
|
|
CSFT microns (mean, SD) |
209 (28.2) |
210 (27.6) |
199 (24.3) |
228 (29.4) |
0.019 |
|
Normal Foveal contour (N, %): |
23 (30.3%) |
14 (31.8%) |
3 (14.3%) |
6 (54.5%) |
0.067 |
|
Normal Ellipsoid zone (N, %) |
48 (63.2%) |
28 (63.6%) |
14 (66.7%) |
6 (54.5%) |
0.845 |
|
DONFL defects present (N, %) |
23 (30.3%) |
14 (31.8%) |
4 (19.0%) |
5 (45.5%) |
0.296 |
|
Normal ELM line (N, %) |
47 (61.8%) |
25 (56.8%) |
14 (66.7%) |
8 (72.7%) |
0.635 |
C3F8: Perfluoropropane; CSFT: Central Subfoveal Thickness; DONFL: Dissociated Optic Nerve Fiber Layer; ELM: External Limiting Membrane; ERM: Epiretinal Membrane; IS/OS: Internal Segment/External Segment; PFCL: Perfluorocarbon Liquid; Postop: Postoperative; Preop: Preoperative; PVR: Proliferative Vitreoretinopathy; RRD: Rhegmatogenous Retinal Detachment