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Hyein Park, Hee Seung Chin; Risk factors of recurrent retinal detachment after primary vitrectomy for rhegmatogenous retinal detachment. Invest. Ophthalmol. Vis. Sci. 2015;56(7 ):5093.
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To identify the risk factors associated with recurrent retinal detachment after primary pars plana vitrectomy (PPV) for rhegmatogenous retinal detachment (RRD).
A retrospective chart-review was carried out on 107 cases of primary PPV for RRD performed by a single surgeon. Preoperative and intraoperative characteristics were analyzed to identify the risk factors associated with recurrence of retinal detachment after the primary surgery.
54.2% of the patients (58 out of 107) were phakic and 58.9% (63 out of 107) had macula off state. 22.4% (24 out of 107) of patients had inferior break. 10.3% (11 out of 107) had preoperative proliferative vitreoretinopathy (PVR) grade higher than A or B. 57.0% (61 out of 107) of the patients performed drainage retinotomy during the surgery.<br /> Retinal reattachment was achieved with single operation in 86.9% (93 out of 107) and 14 cases (13.1%) had retinal redetachment. Factors significantly associated with redetachment were inferior breaks (p=0.049), and PVR grade higher than A or B (p=0.016). 25% (6 of 24) of the RRD with inferior break had retinal redetachment and 36% (4 of 11) of the RRD with PVR grade higher than A or B had retinal redetachment.
Primary PPV for RRD has relatively low redetachment rate following the initial procedure. The risk factors for postoperative failures include preoperative inferior breaks, and PVR grade higher than A or B. Future improvements of the technique will have to focus on these risk factors to reduce failure rate.
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