微波加热联合一次性输血器在结膜囊冲洗中的应用

Application of microwave heating combined with disposible blood transfusion device in conjunctival sac flushing

目的探讨微波加热结膜囊冲洗液联合一次性输血器在批量准分子激光原位角膜磨镶术laser-assisisted in situkeratomileusis，LASIK）术前结膜囊冲洗中的应用效果。方法选择2013年2-8月在我院近视眼治疗中心行LASIK的健康近视患者150例，按手术日期将患者随机分为2组各75例，观察组采用微波加热冲洗液连接一次性输血器。对照组采用冲洗液置于热水中浸泡加热后连接一次性输液器。2组方法均应用于LASIK术前结膜囊冲洗液的加温和结膜囊冲洗，记录2组冲洗液加热所需时间及2组患者结膜囊冲洗的效果。结果观察组和对照组加热5、10、15、20、25、30℃冲洗液水温至（36．0±1．0）℃所需时间分别为124、104、84、64、44、24S和372、312、252、192、132、72s；观察组和对照组结膜囊冲洗的效果比较：在操作配合、结膜充血、眼睑痉挛、眼部疼痛4项指标，2组比较差异无统计学意义；在泪脂沉积的观察指标上，2组比较差异有统计学意义（4例比15例,X^2=7．292，P〈0．01）.结论用微波炉加热冲洗液联合一次性输血器进行结膜囊冲洗，提高了工作效率，提高了安全性、操作的可控性和冲洗效果，得到医护人员的一致认可和好评，值得推广应用。

Objective To determine the efficiency of microwave heating of the conjunctival sac flushing liquid combined with disposible blood transfusion device to prepare for laser-assisted in situ keratomileusis （LASIK）. Methods A total of 150 healthy myopia patients undergoing LASIK in Myopia Treatment Center of our hospital from February to August 2013 were divided into two groups randomly according to operation date, 75 patients in each group. The observation group used a microwave oven to heat the flushing liquid connected with a disposable blood transfusion device. The control group used a hot water bath to heat the flushing liquid, which was then connected to a disposable infusion device. The heated liquid by both methods was applied to conjunctival sac flushing before LASIK. The time required for liquid heating was recorded and the outcome of the conjunctival sac flushing was compared between the two groups. Results The time required by the observation group and the control group of heating flushing fluid from 5 ,10 ,15 , 20 , 25 and30℃ to （36.0±1.0） ℃ was 124, 104, 84, 64, 44, 24 sand 372, 312, 252, 192, 132, 72 s, respectively. The conjunctival sac flushing effect comparison between the observation group and the control group was as follows： in four indicators such as the operation cooperation, conjunctiva congestion, spasm of eyelid, eye pain,there was no significant difference between two groups; for tear fat deposition,there was significant difference between two groups （4 cases vs.15 cases, X^2=7.292,P 〈 0.01）. Conclusions Microwave heating of the conjunctival sac flushing liquid connected with a disposable blood transfusion device is efficient, safe and easy to operate. Therefore, it gains approvement and high opinion of medical workers and is worth being popularized in clinic.