Coats P M, Chan K K, Wilkins M, Beard R J
Br J Obstet Gynaecol. 1980 May;87(5):408-12. doi: 10.1111/j.1471-0528.1980.tb04569.x.
A randomised prospective study of 407 primiparous patients compared the consequences of midline and mediolateral episiotomies. The patients' estimates of the pain from their episiotomies were similar. Anal sphincter injury was significantly more common after a midline procedure but no rectovaginal fistulae occurred. Scarring was less noticeable after the midline incision and intercourse began earlier.
一项针对407名初产妇的随机前瞻性研究比较了会阴正中切开术与会阴侧切术的后果。患者对其会阴切开术疼痛的估计相似。会阴正中切开术后肛门括约肌损伤明显更常见，但未发生直肠阴道瘘。会阴正中切开术后瘢痕不太明显，且性生活开始得更早。
