目的：探讨一次性宫颈扩张棒联合笑气(氧化亚氮)在人工流产术中镇痛的临床效果。方法：将200例实施人工流产术的妇女分成两组，观察组100例，术前5m i n放置一次性宫颈扩张棒；对照组100例，术前1小时于后穹窿放置米索前列醇600μg，两组术中吸入笑气。观察两组术中及术后镇痛效果、宫颈扩张情况、吸入笑气时限、手术前后血压和脉搏变化、副反应发生率、人均诊疗时间以及术后10天子宫复旧情况。结果：观察组与对照组比较：术中镇痛有效率分别为94%和96%；术后镇痛有效率分别为96%和58%；无阻力通过6.5号Hegar宫颈扩张器分别为97%和81%；吸入笑气时限分别为2.58和4.97min，诊疗时限分别为35min和108min，两者差异有统计学意义；人流综合征发生率均较低；观察组未发生副反应，而对照组为13%，术后10天子宫复旧均良好。结论：一次性宫颈扩张棒联合笑气对于人工流产术有良好的镇痛效果，而且术后仍然能持续镇痛，不影响子宫复旧，缩短了笑气吸入时限及诊疗时间，降低了手术风险，副反应少，故值得临床使用。
Clinical Application on Painless Induced Abortion in Artificial Abortion for Disposable Cervical Dilator Combined with Nitrous Oxide
Objective: To discuss clinical analgesia effect for disposable cervical dilator bar combined with nitrous oxide ( N2O ) in artificial abortion.Methods: 200 cases of artificial abortion women divided into two groups, the observation group 100 cases, preoperative 5 minutes putting disposable cervical dilator bar; the control group of 100 cases, 1 hours before surgery in the posterior fornix placed misoprostol 600 μg, while two groups with intraoperative nitrous oxide inhalation. To observe two groups of intraoperative and postoperative analgesia, dilatation of cervix, nitrous oxide inhalation time, blood pressure and pulse changes before and after operation, the incidence of side effects, treatment time and average per capita 10 days after operation on involution of uterus. Results: Observation group compared with the control group: intraoperative analgesia effective rate was 94% and 96%;After the analgesic efficiency were 96% and 58%; no resistance through 6.5 Hegar cervical dilator were 97% and 81%; nitrous oxide inhalation time were 2.58 and 4.97 minutes, treatment time were 35 minutes and 108 minutes, there were significant differences; Incidence of induced abortion syndrome were lower; observation group without side reactions, while the control group was 13%, 10 days after the operation uterine involution are good. Conclusions: Disposable cervical dilator for Artificial Abortion Anesthesia with nitrous oxide has good analgesic effect, and postoperative can stil continuous analgesia, no influence on involution of uterus, shorten the time limit and nitrous oxide inhalation treatment time, reduce the operation risk, less side reaction, so it is worthy of clinical use.
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