Suction loss during femtosecond laser-assisted small-incision lenticule extraction: Incidence and analysis of risk factors
Suction loss during femtosecond laser-assisted small-incision lenticule extraction: Incidence and analysis of risk factors
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DOI：
10.1016/j.jcrs.2015.10.067
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发表时间：
2016-02-01
影响因子：
2.8
通讯作者：
Abou Shousha, Mohamed
中科院分区：
文献类型：
--
作者：
Osman, Ihab M.;Awad, Ramy;Abou Shousha, Mohamed
目得：确定飞秒激光辅助小切口虹膜摘出术治疗近视或近视散光过程中吸力丧失的发生率并分析其风险因素。单位：埃及亚历山大市Roayah视力矫正中心。设计：回顾性比较病例对照研究。方法：所有接受飞秒激光辅助小-纳入了2010年8月至2014年4月期间进行的用于矫正近视和近视散光的切口摘出术。确定发生吸力丧失的患眼。他们的特征，包括人口统计数据（年龄和性别）、眼睛偏侧性、明显屈光、平坦角膜曲率（K）阅读、陡峭K阅读、K散光、光学区、中央角膜厚度、角膜帽直径和厚度与随机选择的对照眼进行比较，以确定发生吸力丧失的危险因素。在研究期间接受飞秒激光辅助小切口虹膜摘出术的3376只眼中，70只眼（2.1%）出现吸力丧失。发生率随着手术经验的增加而降低（2010年为5.06%，2011年为3.59%，2012年为3.41%，2013年为2.32%，2014年为1.84%），表明存在学习曲线。多变量逻辑回归模型显示，具有较大帽直径的眼睛更容易发生吸力丧失（P = 0.023;比值比，9.60）。手术经验显著降低了飞秒激光术中吸力丧失的风险-辅助小切口摘帽矫正近视或近视散光，但不能消除近视或近视散光。增加了产生抽吸损失的风险。
PURPOSE: To determine the incidence of and analyze risk factors for suction loss during femto-second laser-assisted small incision lenticule extraction in the management of myopia or myopic astigmatism.SETTING: Roayah Vision Correction Center, Alexandria, Egypt.DESIGN: Retrospective comparative case-control study.METHODS: All eyes that had femtosecond laser-assisted small-incision lenticule extraction for the correction of myopia and myopic astigmatism performed between August 2010 and April 2014 were included. Eyes that developed suction loss were identified. Their characteristics, including demographic data (age and sex), eye laterality, manifest refraction, flat keratometry (K) reading, steep K reading, K astigmatism, optical zone, central corneal thickness, and corneal cap diameter and thickness, were compared with those in randomly selected control eyes to determine the risk factors for developing suction loss.RESULTS: Of the 3376 eyes that had femtosecond laser-assisted small-incision lenticule extraction during the study, 70 (2.1%) developed loss of suction. The incidence decreased with surgical experience (5.06% in 2010, 3.59% in 2011, 3.41% in 2012, 2.32% in 2013, and 1.84% in 2014), suggesting a learning curve. A multivariate logistic regression model showed that eyes with a larger cap diameter were significantly more likely to develop suction loss (P = .023; odds ratio, 9.60).CONCLUSIONS: Surgical experience significantly decreased the risk for suction loss during femtosecond laser-assisted small incision lenticule extraction for the correction of myopia or myopic astigmatism but did not eliminate it. A larger cap diameter significantly increased the risk for developing the suction loss.