Table 1 Baseline characteristics of the cohort and between the two groups
Variables | Total | Successful-ETV | Failed-ETV | P value |
|---|---|---|---|---|
Number of patients | 46 | 39 (84.8) | 7 (15.2) | Â |
Mean age ± SD, years | 50.4 ± 20.7 | 52.2 ± 21.6 | 40.4 ± 11.7 | 0.278 |
Females | 28 (60.9) | 23 (59) | 5 (71.4) | 0.534 |
mRS at baseline | Â | Â | Â | 0.928 |
 ≤ 2 | 27 (58.7) | 23 (59) | 4 (57.1) |  |
 > 2 | 19 (41.3) | 16 (41) | 3 (42.9) |  |
Etiology for Aqueduct stenosis | Â | Â | Â | 0.436 |
 Membrane | 24 (52.2) | 20 (51.3) | 4 (57.1) |  |
 Lesion/Tumor pineal or tectal region | 16 (34.8) | 14 (35.9) | 2 (28.6) |  |
 Pineal cyst | 4 (8.7) | 4 (10.3) | - |  |
 Occlusion/Stenosis without membrane | 2 (4.3) | 1 (2.6) | 1 (14.3) |  |
Procedure type | Â | Â | Â | 0.71 |
 ETV | 35 (76.1) | 29 (74.4) | 6 (85.7) |  |
 ETV + Endoscopic biopsy | 8 (17.4) | 7 (17.9) | 1 (14.3) |  |
 ETV + Endoscopic cyst fenestration | 3 (6.5) | 3 (7.7) | - |  |
Radiology preoperatively | Â | Â | Â | Â |
 Evans Index ± SD | 0.36 ± 0.06 | 0.37 ± 0.06 | 0.36 ± 0.04 | 0.929 |
 FOHR ± SD | 0.48 ± 0.06 | 0.48 ± 0.06 | 0.48 ± 0.06 | 1 |
 Volume lateral ventricles, cm3 | 171 ± 182.1 | 172.3 ± 192.1 | 163.9 ± 123 | 0.905 |
 Volume 3rd ventricle, cm3 | 5.8 ± 3.4 | 5.9 ± 3.6 | 5.4 ± 2 | 0.891 |
 Volume 4th ventricle, cm3 | 1.3 ± 1 | 1.3 ± 1.1 | 1.2 ± 0.7 | 0.902 |
 Volume lateral and 3rd ventricles, cm3 | 176.8 ± 184.9 | 178.2 ± 195.1 | 169.2 ± 123.7 | 0.891 |