Thompson R E, Wetchler B V, Alexander C D
J Reprod Med. 1987 Jul;32(7):537-9.
Approximately 200 women of American Society of Anesthesiologists class I and II physical status electing outpatient laparoscopic tubal sterilization with Yoon rings were involved in a double-blind study to evaluate postoperative pain relief after intraoperative suprapubic infiltration of the fallopian mesosalpinx. The postoperative pain levels were lower after bilateral infiltration of 0.5% bupivacaine beneath the site of ring application. Postoperative, suprapubic infiltration provided safe, prolonged and effective pain relief, allowed prompt ambulation and early discharge, and reduced the need for narcotic analgesics and postoperative analgesia.
约200名美国麻醉医师协会身体状况为I级和II级的女性选择采用Yoon环进行门诊腹腔镜输卵管绝育术，并参与了一项双盲研究，以评估术中在输卵管系膜耻骨上浸润后术后疼痛的缓解情况。在环应用部位下方双侧浸润0.5%布比卡因后，术后疼痛水平较低。术后，耻骨上浸润提供了安全、持久且有效的疼痛缓解，允许患者迅速下床活动并提前出院，减少了对麻醉性镇痛药和术后镇痛的需求。
