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Table 3 Intraoperative ocular characteristics

From: Endoscopy-assisted vitrectomy vs. vitrectomy alone: comparative study in complex retinal detachment with proliferative vitreoretinopathy

  PPV-only E-PPV p value
PVR
 B, n (%)a 26 (40.6) 18 (48.6) 0.533
 C, n (%)a    
  1 19 (29.7) 6 (16.2) 0.156
  2 15 (23.4) 7 (18.9) 0.803
  3 11 (17.2) 6 (16.2) > 0.999
  3-Anterior 4 (6.3) 3 (8.1) 0.705
  3-Posterior 7 (10.9) 3 (8.1) 0.742
  4 6 (9.4) 3 (8.1) > 0.999
  5 6 (9.4) 12 (32.4) 0.006
Perisilicone proliferation
 n (%)a (3.1) (13.5) 0.048
Retinectomy
 180º, n (%)a 11 (17.2) 14 (37.8) 0.031
 270º, n (%)a 4 (6.3) 3 (8.1) 0.705
 360º, n (%)a 7 (10.9) 6 (16.2) 0.541
Tamponadeb
 Air, n (%)a 1 (1.9) 3 (8.3) 0.119
 SF6, n (%)a 0 (0) 2 (5.6)
 C3F8, n (%)a 14 (26.4) 6 (16.7)
 SO, n (%)a,c 38 (71.7) 25 (69.4)
PPV (wide-field)
 25 g, n (%)a 50 (94.3) 21 (60.0) < 0.001
 23 g, n (%)a 3 (5.7) 14 (40.0)
 OR (95% CI) 11.1 (2.9–43.5) Ref.
  1. PPV pars plana vitrectomy, E-PPV endoscopy-assisted PPV, PVR proliferative vitreoretinopathy, Ref reference category, SO silicone oil
  2. aProportions based on the total number of eyes included
  3. bTamponade information was missing for eleven eyes in the PPV only group and one eye in the endoscopy-assisted PPV group
  4. cAn additional 4 patients in the PPV-only group and 8 patients in the E-PPV group had used SO in a previous surgery