摘要
鼻硬性内窥镜直视下进行各类复杂困难手术，出血多，止血困难。选５２例Ⅱ～Ⅳ期鼻窦炎、鼻息肉患者。随机分为降压组和对照组各２６例，在全麻下用硝普钠（０．５～５μｇ／ｋｇ／分钟）进行控制性降压，以减少术中出血。对降压组各项血流动力学和血气分析变化进行观察，结果表明降压组出血量比对照组减少４５％，手术时间缩短４２％，效果显著，无并发症。降压后心率（ＨＲ）增快，每搏量（ＳＶ）、心输出量（ＣＯ）、中心静脉压（ＣＶＰ）降低。表明有相对血容量不足的倾向，应注意充分扩容。
Abstract During complex endoscopic nasal surgery,severe bleeding may occur and it is difficult to stop it.52 patients with sinuitis or polyps(Ⅱ～Ⅳ stage)were divided into two groups ran domly,control group and control hypotension group.Under general anesthesia’the hypoten-sion was performed in order to decrease bleeding.Observation on hemodynamic and blood gas changes had been done in the hypotension group.The conclusion showed that bleeding amout in hypotension group was 45%less than that of control group,with operation time shortened by 4 2%, During hypotension,the heart rate(HR )increased, stroke volume(SV),cardiac output(CO)and center vein pressure(CVP)decreased.There was a tenden-cy of insufficient blood volume。So,sufficient perfusion shoud be given.
出处
《耳鼻咽喉（头颈外科）》
1995年第3期163-166,共4页
Chinese Arch Otolaryngology-Head Neck Surg
