Leon Pia, Umari Ingrid, Mangogna Alessandro, Zanei Andrea, Tognetto Daniele
University Eye Clinic of Trieste, Ospedale Maggiore, Trieste 34125, Italy.
Department of Medicine, Surgery and Health Sciences, University of Trieste, Trieste 34149, Italy.
Int J Ophthalmol. 2016 Jun 18;9(6):890-7. doi: 10.18240/ijo.2016.06.18. eCollection 2016.
To evaluate and compare the intraoperative parameters and postoperative outcomes of torsional mode and longitudinal mode of phacoemulsification.
Pertinent studies were identified by a computerized MEDLINE search from January 2002 to September 2013. The Meta-analysis is composed of two parts. In the first part the intraoperative parameters were considered: ultrasound time (UST) and cumulative dissipated energy (CDE). The intraoperative values were also distinctly considered for two categories (moderate and hard cataract group) depending on the nuclear opacity grade. In the second part of the study the postoperative outcomes as the best corrected visual acuity (BCVA) and the endothelial cell loss (ECL) were taken in consideration.
The UST and CDE values proved statistically significant in support of torsional mode for both moderate and hard cataract group. The analysis of BCVA did not present statistically significant difference between the two surgical modalities. The ECL count was statistically significant in support of torsional mode (P<0.001).
The Meta-analysis shows the superiority of the torsional mode for intraoperative parameters (UST, CDE) and postoperative ECL outcomes.
评估并比较扭转模式与纵向模式超声乳化白内障吸除术的术中参数及术后结果。
通过计算机检索MEDLINE数据库，查找2002年1月至2013年9月的相关研究。荟萃分析由两部分组成。第一部分考虑术中参数：超声时间（UST）和累积能量消散（CDE）。术中值还根据核混浊程度分为两类（中度和硬核白内障组）进行明确分析。研究的第二部分考虑术后结果，即最佳矫正视力（BCVA）和内皮细胞丢失（ECL）。
UST和CDE值在统计学上有显著差异，支持中度和硬核白内障组采用扭转模式。两种手术方式的BCVA分析无统计学显著差异。ECL计数在统计学上有显著差异，支持扭转模式（P<0.001）。
荟萃分析表明，扭转模式在术中参数（UST、CDE）和术后ECL结果方面具有优势。
