[The efficiency of 23 G vitrectomy combined with preoperative subtenon injection of triamcinolone acetonide for treatment of retinal detachment associated with choroidal detachment].

Objective: To evaluate the efficiency of 23 G vitrectomy combined with preoperative subtenon injecfion of triamcinolone acetonide for treatment of rhegmatogenous retinal detachment associated with choroidal detachment. Methods: A retrospective analysis. Forty-eight (16 males and 32 females, aged 57.3±13.9) consecutive patients (48 eyes) who were diagnosed with rhegmatogenous retinal detachment associated with choroidal detachment and received 23 G vitrectomy at the Eye Hospital of Wenzhou Medical University during January 2012 and January 2015 were enrolled. Twenty-three eyes were treated with subtenon injection TA 5 d before the planned 23 G vitrectomy (TA group). Twenty-five eyes were treated with dexamethasone 3 to 5 d before the planned vitrectomy (Dex group). Type-B ultrasonic, intraocular pressure, best corrected visual acuity examinations were conducted for all eyes on admission day, preoperatively and at 1 month, 3 month postoperatively, and during the last visit. The rate of reattachment, change of height of choroidal detachment, intraocular pressure, best corrected visual acuity, and the complication of the eyes between the two groups were compared. All patients were followed up at least half a year after the repair surgery. Results: The intraocular pressure of the TA group was higher than the Dex group[(8.58±3.83)mmHg vs . (6.70±2.49)mmHg (1 mmHg=0.133 kPa), ( t= 2.032)], and the height of choroidal detachment was lower in TA group [0.90(0.00, 3.84)mm vs . 4.03(1.05, 5.38)mm, Z=- 2.569, P< 0.05]. There is no statistic difference between the reattachment rate of the two groups [95.7%(22/23) vs . 76.0%(19/25), χ(2)=2.304, P= 0.129], but it seems it was better in TA group. The best corrected visual acuity results of the last visit was better in TA group than Dex group [(0.91±0.54) vs . (1.25±0.62), t=- 2.034, P= 0.048]. The rate of hypertention was higher in TA group than Dex group at 1 month, 3 month postoperatively(χ(2)=2.304, 5.648, P< 0.05), while there was no statistic difference of hypertention rate during last visit between the two groups (χ(2)=0.006, P= 0.941). Conclusions: The treatment of 23 G vitrectomy combined with subtenon injection of triamcinolone acetonide can improve the intraocular pressure, reduce the height of choroidal detachment, and improve the best corrected visual acuity after the surgery, but it may cause heyertenion. (Chin J Ophthalmol, 2018, 54: 252-257) .