Tan Linda, Pepra E, Haloob R K
Basildon Hospital, Essex, UK.
J Obstet Gynaecol. 2004 Jan;24(1):25-7. doi: 10.1080/01443610310001620242.
A retrospective case control study to assess the outcome of pregnancy after large loop excision of the transformation zone of cervix (LLETZ) was carried out. One hundred and nineteen women who had undergone LLETZ and delivered in Basildon District Hospital were identified between January 1995 and December 1998; 119 age- and parity-matched controls were selected. Variables included were miscarriages, preterm deliveries, gestation at delivery, onset of labour, length of labour, augmentation of labour, mode of delivery and birth weight. The miscarriage rate in the study and control group were 11.8% and 9.2%, respectively (P=0.53). The preterm delivery rate in the study and control group were 10.9% and 9.2%, respectively (P=0.67). There were fewer caesarean sections and more spontaneous vaginal deliveries in the study group. There were slightly more instrumental deliveries in the study group. From this study, it was concluded that LLETZ does not appear to have an adverse effect on the outcome of pregnancy.
开展了一项回顾性病例对照研究，以评估宫颈转化区大环形切除术（LLETZ）后的妊娠结局。在1995年1月至1998年12月期间，确定了119例在巴西尔登区医院接受LLETZ并分娩的妇女；选取了119例年龄和胎次匹配的对照。纳入的变量包括流产、早产、分娩时孕周、临产开始时间、产程长度、引产、分娩方式和出生体重。研究组和对照组的流产率分别为11.8%和9.2%（P=0.53）。研究组和对照组的早产率分别为10.9%和9.2%（P=0.67）。研究组剖宫产较少，自然阴道分娩较多。研究组器械助产略多。从这项研究得出的结论是，LLETZ似乎对妊娠结局没有不利影响。
