Legacy AdvanTec and Sovereign WhiteStar: A wound temperature study
Legacy AdvanTec and Sovereign WhiteStar: A wound temperature study
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DOI：
10.1016/j.jcrs.2003.12.048
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发表时间：
2004-05
影响因子：
2.8
通讯作者：
R. Olson;Yian Jin;Gus Kefalopoulos;J. Brinton
中科院分区：
文献类型：
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作者：
R. Olson;Yian Jin;Gus Kefalopoulos;J. Brinton
目的：评估Sovereign® WhiteStar（S-WS）（AMO）和Legacy® AdvanTec®（L-ADV）（Alcon）超声乳化系统的伤口温度。Moran眼科中心，健康科学中心，犹他州，湖城，犹他州，美国。方法：超声乳化白内障吸除术使用20号，30度直尖与L-ADV和S-WS系统进行新鲜尸体眼。功率设置为50%，抽吸速度为12 mL/min; L-ADV以每秒15次脉冲（pps）运行，S-WS以WS CF运行（6毫秒开启，12毫秒关闭）。使用放置在伤口中的微型热敏电阻以5秒的间隔测量温度，持续60秒。超声乳化头端成30度角，以增加伤口-组织接触。在10秒时，阻断血流以模拟闭塞。五次运行，套管和未套管，平均为超乳tip.Results：平均温度是显着高于与L-ADV比与S-WS（从10秒的套管条件下，从5秒的未套管条件后，抽吸线被夹紧）。在2/5次带套管运行和4/5次未带套管运行中，L-ADV手柄的功率随温度升高而降低。使用带袖套的L-ADV进行的一次运行显示伤口灼伤迹象。有没有伤口烧伤的迹象与S-WS。记录的最高温度是57.5 C与L-ADV和38.6 C与S-WS。功率测试表明L-ADV保护行程长度和S-WS有恒定的功率，除了在空气中，它增加power.Conclusions：有较少的伤口温度随着时间的推移增加与S-WS比L-ADV系统在袖和无袖模拟手术在人类眼库的眼睛。由于超声手柄在不同负载情况下的响应不同，因此很难对脉冲特征进行有意义的比较。
Purpose:To assess the wound temperature of the Sovereign® WhiteStar (S-WS)(AMO) and Legacy® AdvanTec®(L-ADV)(Alcon) phacoemulsification systems.Setting:John A. Moran Eye Center, Health Sciences Center, University of Utah, Salt Lake City, Utah, USA.Methods:Phacoemulsification using 20-gauge, 30-degree straight tips with the L-ADV and S-WS systems was performed in fresh cadaver eyes. The power was set at 50%, and aspiration was 12 mL/min; the L-ADV was run at 15 pulses per second (pps) and the S-WS at WS CF (6 milliseconds on, 12 milliseconds off). Temperature was measured at 5-second intervals for 60 seconds using a microthermistor placed in the wound. The phaco tip was angled 30 degrees to increase wound-tissue contact. At 10 seconds, the flow was clamped to simulate occlusion. Five runs, sleeved and unsleeved, were averaged for the phaco tip.Results:The mean temperature was significantly higher with L-ADV than with S-WS (from 10 seconds on in the sleeved condition and from 5 seconds on in the unsleeved condition after the aspiration line was clamped). In 2 of 5 sleeved runs and 4 of 5 unsleeved runs, the L-ADV handpiece decreased power as the temperature increased. One run with the L-ADV with sleeve showed signs of wound burn. There were no signs of wound burn with the S-WS. The highest temperature recorded was 57.5 C with the L-ADV and 38.6 C with the S-WS. Power tests showed L-ADV protected the stroke length and S-WS had constant power except in air where it increased power.Conclusions:There was less increase in wound temperature over time with the S-WS than with the L-ADV system in sleeved and unsleeved simulated surgery in human eye-bank eyes. Because the ultrasound handpieces respond differently under different load scenarios, meaningful comparisons of pulsing features are difficult to create.