Clinical application of an double-cavity balloon oppressor in primary retinal detachment surgery / 眼科研究

ABSTRACT

Objective The double-cavity balloon oppressor surgery for rhegmatogenous retinal detachment (RRD) has been utilized in past decades. But we have not yet a domestic device available. Present study was to investigate the effectiveness of double-cavity balloon oppressor using a domestic device in primary RRD surgery. Methods This clinical trial was a prospective study. Total 74 cases of patients with rhegmatogenous retinal detachment(RRD) (74 eyes) were enrolled. Double-cavity balloon oppressor surgery was performed in 40 eyes of 40 patients, and conventional segmental scleral buckling surgery was used in 34 eyes of 34 patients. The mean operative time, retinal attachment rate, vision and astigmatism change after operation between two different operative fashions were compared. The intra- and post-operative complication was discussed. The mean follow-up period was 4. 5 months. Written informed consent was obtained from all the patients before clinical trial. Results The retinal anatomic attachment rate was 92. 5% (37/40) in balloon oppressor surgery group and 91. 1% (31/34) in conventional surgery group, and there were no significant difference in retinal attachment rate among PVR grade A, B and C1 (P ＞0. 05) . The postoperative best corrected visual acuity (operative 3 months) was improved in 29 eyes(72. 5%) after balloon oppressor surgery and 25 eyes(73. 5%) after conventional surgery, showing insignificant difference between them (P ＞ 0. 05) . The mean surgical time was about (27. 00 ±8. 60) minutes in balloon oppressor surgery group and (47. 00 ± 14. 30) minutes in conventional surgery group(t =7. 41, P ＜0. 01) . Cylinder diopter change after surgery was insignificantly different between before and after operation in balloon oppressor surgery group (0. 52 ± 0. 30 D vs 0. 81 ± 0. 41 D, P ＞ 0. 05), however, there was a significant difference in cylinder diopter change between preoperation and postoperation (0. 65 ± 0. 32 D vs 1. 83 ± 0. 69 D, P ＜ 0. 05) . Conclusion Double-cavity balloon oppressor surgery for RRD is accurate and reliable. This operation procedure offer an economic, efficient and convenient choice for treatment of RRD.