The role of pars plana vitrectomy in managing complications related to retinal focal nodular gliosis (vasoproliferative tumours)
摘要
To assess the outcomes of pars plana vitrectomy (PPV) in patients with complications related to retinal focal nodular gliosis (FNGs), also known as vasoproliferative tumours.
Material/subjects and methodsThis retrospective case series included 22 patients who underwent PPV for the management of FNG-related complications at Moorfields Eye Hospital between 2012 and 2024. We collected and analysed the patient demographics, clinical features and surgical outcomes.
ResultsThe mean age was 50.59 years (SD 14.5) at presentation and 52.59 years (SD 13.9) at the time of surgery. The most common indications for surgery were epiretinal membrane (n = 9, 40.9%) and vitreous haemorrhage (n = 8, 36.4%). Fifteen eyes (68.2%) were treatment-naïve, while five (22.7%) had previously undergone ruthenium plaque radiotherapy. The median follow-up period was 34 months (IQR 6.0–62.2). The median preoperative visual acuity was 1.15 logMAR (IQR 0.67–2.40), which significantly improved to 0.4 logMAR (IQR 0.17–1.0) at the last follow-up visit (p < 0.01). Postoperative complications were not observed in 14 patients (63.6%), while cystoid macular oedema was the most common complication following vitrectomy (13.6%, n = 3). Three patients required FNG-related re-operation for rhegmatogenous retinal detachment, macular hole, and epiretinal membrane. All FNGs were inactive at the last follow-up visit.
DiscussionVitreous haemorrhage and epiretinal membrane are the most common indications for surgery in patients with FNG. PPV demonstrates favourable functional and anatomic outcomes, though it is worth noting a 13.6% re-operation rate for complications. Significant visual improvement and effective tumour control are also recorded in the long-term.