Journal List > J Korean Ophthalmol Soc > v.56(6) > 1010303

Choi, Cho, Lee, Cho, Lee, Kim, Kim, and Kim: Outcomes of Relaxing Retinectomy in Patients with Proliferative Vitreoretinopathy

Abstract

Purpose

To report the outcomes of relaxing retinectomy for retinal detachment in patients with proliferative vitreoretinopathy (PVR).

Methods

Sixty-four cases of relaxing retinectomy for PVR with a minimum follow-up of 6 months were retrospectively reviewed. The outcomes included achievement of complete retinal reattachment, PVR recurrence, the mean number of additional oper-ations, visual acuity and incidence of postoperative complications. We analyzed the influence of intraoperative factors including lens status, retinectomy extent, additional scleral buckling, and tamponade agent on primary retinal reattachment.

Results

Complete retinal reattachment was achieved in 47 eyes (74.3%) without an additional surgery. PVR recurred in 19 eyes (29.7%) and an additional operation was performed in 17 eyes (26.6%). Fifty-seven (89.1%) eyes showed complete retinal reattachment and 40 eyes (62.5%) had visual acuity of 0.02 or more at the final follow-up visit. Hypotony was the major complication and developed in 10 eyes (15.6%). Eyes undergoing smaller (< 180˚) retinectomy or silicone oil tamponade had higher primary anatomical success rates than larger (≥ 180˚) retinectomy or gas tamponade (p = 0.043 and 0.013, respectively).

Conclusions

Relaxing retinectomy is a useful technique for retinal detachment with PVR, but risk of recurrent proliferation or hypotony should be considered.

References

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Figure 1.
Consecutive fundus photos of a 25 year old male patient undergoing 5 repeated operations. (A) Total retinal detachment with extensive subretinal proliferation before surgery. (B) Re-attached retina 2 weeks after 360° relaxing retinectomy (the second operation). (C) Initiation of reproliferation at retinectomy margin 3 weeks after second operation. (D) Preretinal reproliferation 2 weeks after fourth operation. (E) Matured preretinal membrane 4 weeks after fourth operation. (F) Remained tough fibrous ring surrounding the retinectomy site after fifth operation.
jkos-56-900f1.tif
Table 1.
Baseline characteristics of patients undergoing relaxing retinectomy for proliferative vitreoretinopathy
Mean age (years, range) 54.6 ± 18.8 (12-78)
Mean follow-up (months, range) 17 ± 12 (6-42)
Gender  
  Male 38 (59.4)
  Female 26 (40.6)
Best corrected visual acuity (Snellen)  
  ≥0.1 8 (12.5)
  0.02-<0.1 31 (48.4)
  <0.02 25 (39.0)
Prior operation  
  Mean number 1.75 ± 0.31
  No prior operation 15 (23.4)
  Scleral buckling or encircling 37 (57.8)
  Vitrectomy 38 (59.4)
Lens status  
  Phakic 25 (39.0)
  Pseudophakic 35 (54.7)
  Aphakic 4 (6.3)

Values are presented as mean ± SD or n (%) unless otherwise indicated.

Table 2.
Surgical details of relaxing retinectomy for proliferative vitreoretinopathy
Retinectomy extent  
  <90˚ 8 (12.5)
  90˚-<180˚ 12 (18.8)
  180˚-<270˚ 19 (29.7)
  270˚-<360˚ 7 (10.9)
  360˚ 18 (28.2)
Retinectomy center location (excluding 360˚ cases)  
  Inferior 42 (91.3)
  Superior 4 (8.7)
Intraoperative scleral buckling or encircling 12 (18.8)
Intraoperative lens removal  
  Phacoemulsification 10 (15.6)
  Pars plana lensectomy 3 (4.7)
Tamponade type  
  Silicone oil 51 (79.7)
  Gas 13 (20.3)

Values are presented as n (%).

Table 3.
Outcomes at final follow-up visit
Anatomical attachment 57 (89.1)
Recurrent proliferative vitreoretinopathy 19 (29.7)
Number of reoperation  
  0 47 (73.4)
  1 10 (15.6)
  ≥2 7 (10.9)
Intraocular pressure (mm Hg)  
  ≥22 12 (18.8)
  6-21 42 (65.6)
  ≤5 10 (15.6)
Best corrected visual acuity (Snellen)  
  ≥0.1 19 (29.7)
  0.02-<0.1 21 (32.8)
  <0.02 24 (37.5)

Values are presented as n (%).

Table 4.
Factors predictive of primary anatomical success
  Number (%) Primary anatomical reattachment (%) p-value*
Lens status     0.556
  Phakia 12 (18.8) 8 (66.7)  
  Pseudophakia or aphakia 52 (81.3) 39 (75.0)  
Retinectomy extent     0.043
  <180˚ 20 (31.3) 18 (90.0)  
  180-360˚ 44 (68.8) 29 (65.9)  
Additional scleral buckling or encircling     0.497
  Yes 49 (76.6) 37 (75.5)  
  No 15 (23.4) 10 (66.7)  
Tamponade type     0.013
  Silicone oil 51 (79.7) 41 (80.4)  
  Gas 13 (20.3) 6 (46.2)  

* Pearson’s chi-square test.

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