Partial Posterior Hyaloidectomy in Macular Surgery : A Modified Procedure of Vitrectomy to Prevent Retinal Break Related to Induction of a Posterior Vitreous Detachment
试验速览
- 阶段
- 1 期
- 状态
- 已完成
- 入组人数
- 50
- 主要终点
- incidence of intraoperative and postoperative retinal break related to surgery
研究概览
简要总结
To evaluate the effect of partial posterior hyaloidectomy on preventing iatrogenic retinal breaks related to induction of a posterior vitreous detachment
详细描述
The induction of a posterior vitreous detachment (IPVD) during vitrectomy have been suggested as one of the etiologies of iatrogenic retinal break related to vitrectomy.The iatrogenic retinal breaks related to IPVD usually develop near or anterior to the equatorial region.
Thus, the investigators hypothesized that this complication could be prevented by restricting the extent of IPVD, and planned a modified procedure of vitrectomy in which the extent of IPVD and removal of vitreous cortex was restricted to about slightly beyond the margin of temporal major vascular arcade.
The investigators have termed this procedure, partial posterior hyaloidectomy. Unlike RRD or proliferative diabetic retinopathy, lesions are localized within the major vascular arcade in macular disorders so that macular disorders could be an eligible indication for this procedure.
研究设计
- 研究类型
- Interventional
- 分配方式
- Non Randomized
- 干预模型
- Single Group
- 主要目的
- Prevention
- 盲法
- None
入排标准
- 年龄范围
- 20 Years 至 70 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Cases of idiopathic ERM or idiopathic MH without evidence of PVD preoperatively
排除标准
- •history of previous intraocular surgery
结局指标
主要结局
incidence of intraoperative and postoperative retinal break related to surgery
时间窗: postoperative 3 to 6 months
The eyes that completed a follow-up of at least 3 months were included in the result analysis. The incidence of retinal breaks related to the surgery was measured.
次要结局
未报告次要终点