三种25G玻璃体切割系统中的流体动力学：玻璃体视网膜手术中的使用原则

Fluid dynamics in three 25-gauge vitrectomy systems: principles for use in vitreoretinal surgery.

作者信息

Magalhães Octaviano, Maia Maurício, Maia André, Penha Fernando, Dib Eduardo, Farah Michel Eid, Schor Paulo

机构信息

Department of Ophthalmology, Paulista School of Medicine, Federal University of São Paulo, São Paulo, Brazil.

出版信息

Acta Ophthalmol. 2008 Mar;86(2):156-9. doi: 10.1111/j.1600-0420.2007.00988.x.

DOI:10.1111/j.1600-0420.2007.00988.x

PMID:18373797

Abstract

PURPOSE

To compare infusion and extrusion fluid volumes with three 25-gauge vitrectomy systems.

METHODS

The infusion and aspiration rates of 25-gauge systems from Alcon (Fort Worth, TX, USA), Bausch & Lomb (St Louis, MO, USA), and the Dutch Ophthalmic Research Centre (DORC, Zuidland, the Netherlands) were measured in vitro using balanced saline solution with different heights (40, 60, 80, 100, 120 cm) of infusion bottle, cutter velocities (800, 1100, 1500 cuts/ min) and aspiration powers (100, 200, 300, 400, 500 mmHg).

RESULTS

The infusion flow velocities differed among the systems (p < 0.001 for all comparisons [p-values 0.0009-0.0001]). The aspiration rates of the Alcon and Bausch & Lomb systems were lower than that of the DORC system (p < 0.02 for all comparisons [p-values 0.018-0.002]).

CONCLUSIONS

Infusion and extrusion fluid rates differ among 25-gauge vitrectomy systems. These results may help to optimize ideal aspiration and infusion parameters among 25-gauge vitrectomy systems used to treat vitreoretinal diseases.

摘要

目的

比较三种25号玻璃体切割系统的灌注液量和排出液量。

方法

使用平衡盐溶液，在体外测量美国爱尔康公司（得克萨斯州沃思堡）、美国博士伦公司（密苏里州圣路易斯）和荷兰眼科研究中心（荷兰南地）的25号系统在不同灌注瓶高度（40、60、80、100、120厘米）、切割器速度（800、1100、1500次/分钟）和吸引功率（100、200、300、400、500毫米汞柱）下的灌注和抽吸速率。