Vasavada Abhay R, Raj Shetal M, Patel Udayan, Vasavada Vaishali, Vasavada Viraj
Iladevi Cataract & IOL Research Centre, Raghudeep Eye Clinic, Gurukul Road, Memnagar, Ahmedabad-380 052, India.
Ophthalmic Surg Lasers Imaging. 2010 Jan-Feb;41(1):109-14. doi: 10.3928/15428877-20091230-20.
To compare intraoperative performance and postoperative outcome of three phacoemulsification technologies in patients undergoing microcoaxial phacoemulsification through 2.2-mm corneal incisions.
The prospective, randomized, single-masked study included 360 eyes randomly assigned to torsional (Infiniti Vision System; Alcon Laboratories, Fort Worth, TX), microburst with longitudinal (Infiniti), or microburst with longitudinal (Legacy Everest, Alcon Laboratories) ultrasound. Assessments included surgical clock time, fluid volume, and intraoperative complications, central corneal thickness on day 1 and months 1 and 3 postoperatively, and endothelial cell density at 3 months postoperatively. Comparisons among groups were conducted.
Torsional ultrasound required significantly less surgical clock time and fluid volume than the other groups. There were no intraoperative complications. Change in central corneal thickness and endothelial cell loss was significantly lower in the torsional ultrasound group at all postoperative visits (P < .001, Kruskal-Wallis test) compared to microburst longitudinal ultrasound modalities.
Torsional ultrasound demonstrated quantitatively superior intraoperative performance and showed less increase in corneal thickness and less endothelial cell loss compared to microburst longitudinal ultrasound.
比较三种超声乳化技术在经2.2毫米角膜切口行微同轴超声乳化术患者中的术中表现及术后结果。
这项前瞻性、随机、单盲研究纳入了360只眼，这些眼被随机分配接受扭转式（Infiniti Vision System；爱尔康实验室，沃思堡，德克萨斯州）、纵向微爆破式（Infiniti）或纵向微爆破式（Legacy Everest，爱尔康实验室）超声乳化。评估内容包括手术时间、液体量及术中并发症、术后第1天、第1个月和第3个月时的中央角膜厚度，以及术后3个月时的内皮细胞密度。对组间进行了比较。
与其他组相比，扭转式超声所需的手术时间和液体量显著更少。未发生术中并发症。与纵向微爆破式超声模式相比，扭转式超声组在所有术后访视时中央角膜厚度的变化和内皮细胞损失均显著更低（P <.001，Kruskal-Wallis检验）。
与纵向微爆破式超声相比，扭转式超声在术中表现上具有数量上的优势，且角膜厚度增加更少，内皮细胞损失也更少。
