Session Title: Free Paper Session 13: Vitreoretinal Surgery IV
Session Date/Time: Friday 08/09/2017 | 14:30-16:00
Paper Time: 14:30
Venue: Room 117
First Author: : K.Xu CANADA
Co Author(s): : E. Chin D. Parke III D. Almeida
To determine predictive factors of proliferative vitreoretinopathy (PVR) formation after uncomplicated primary retinal detachment (RD) repair.
A multi-site single private practice institution
Retrospective single-centre case-control study of 74 consecutive patients with (37 eyes) and without (37 eyes) PVR formation after undergoing uncomplicated primary surgery for RD repair. Logistic regression was used to assess factors associated with PVR formation.
RD involving the macula was 4.2 times (adjusted odds ratio, AOR; 95% confidence interval, CI, 1.4 -12.9, p = 0.0119) more likely to have PVR formation compared to those without. Patients who were current or former smokers were 3.6 times (AOR, 95% CI: 1.1 - 11.7, p = 0.0352) more likely to have PVR formation compared to non-smokers. Compared to 25 gauge (g) vitrectomy, larger gauge vitrectomy (20-g or 23-g) was 3.6 times (AOR, 95% CI: 1.2- 11.3, p = 0.0276) more likely to have PVR formation. Duration of RD symptoms, high myopia, lens status, lattice degeneration, location of retinal break, number of retinal breaks, and surgical technique (e.g. scleral buckle with or without vitrectomy versus vitrectomy alone) were not predictive of PVR formation.
Cigarette smoking, macular involvement, and large-gauge vitrectomy are significant risk factors predictive of PVR formation after uncomplicated primary RD repair.