Purpose: To evaluate the visual,
anatomical outcomes, complications and the predictive preoperative and
intraoperative factors of pars plana vitrectomy (PPV) for proliferative
diabetic retinopathy (PDR) in a large Asian tertiary eye center.
Methods: This is a consecutive
retrospective review of 106 eyes that underwent PPV for PDR complications in
2013. The functional success was defined as visual acuity of 20/200 or better
while the anatomical success was defined as 360° flat retina without endo-tamponade
at one year.
Results: The overall functional and
anatomical success was 77.4% and 94.3%, respectively. The common complications
were iatrogenic break (14.2%), raised intraocular pressure (IOP) (13.2%),
cataract (13.2%) and recurrent vitreous hemorrhage (12.3%). The use of
intraoperative triamcinolone (OR: 0.36, p=0.04) and silicone oil (OR: 0.08,
p<0.001) were associated with poorer visual success. The iatrogenic breaks
occurred more often in 20G PPV than 23G PPV (OR: 5.89, p=0.02) whereas intraoperative
silicone oil were associated with postoperative raised IOP (OR: 3.71, p=0.04).
The use of bevacizumab was not found to reduce recurrent vitreous hemorrhage
(OR: 0.53, 95%CI: 0.11-2.53, p=0.43).Read More....
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