Giorlandino Claudio, Cignini Pietro, Cini Marco, Brizzi Cristiana, Carcioppolo Ornella, Milite Vincenzo, Coco Claudio, Gentili Paolo, Mangiafico Lucia, Mesoraca Alvaro, Bizzoco Domenico, Gabrielli Ivan, Mobili Luisa
Department of Prenatal Diagnosis, Artemisia Fetal-Maternal Medical Centre, Rome, Italy.
Prenat Diagn. 2009 Jun;29(6):606-12. doi: 10.1002/pd.2256.
To compare procedure-related pregnancy loss after second-trimester genetic amniocentesis in women given an antibiotic prophylaxis and controls.
Prospective, open randomised controlled single-centre study between January 1999 and December 2005 at Artemisia Fetal Maternal Medical Centre. A follow-up within 4 weeks after the procedure was done.Of 36,347 eligible women, 1424 refused to participate and 34,923 were enrolled and randomised with unequal chance of selection, 21,991 were assigned to treatment group and 12,932 were assigned to the control group, and did not receive any placebo. Oral azithromycin, 500 mg per day, was administered 3 days before amniocentesis. The primary endpoint was the procedure-related pregnancy loss. The secondary endpoint was the rate of preterm premature rupture of membranes.
The rate of abortion related to the amniocentesis was 7/21 219 women (0.03%, 95% CI 0.009-0.057) in the intervention group, and 36/12 529 (0.28%, 0.28-0.30) in controls (p = 0.0019). The rate of preterm premature rupture of membranes was 14/21 219 (0.06%, 0.031-0.101) in the intervention group, and 140/12 529 (1.12%, 0.94-1.30) in the control group (p = 0.001).
Antibiotic prophylaxis before second-trimester amniocentesis reduced the risk of abortion and of rupture of the membranes.
比较接受抗生素预防治疗的孕妇与对照组孕妇在孕中期进行遗传羊膜穿刺术后与手术相关的妊娠丢失情况。
1999年1月至2005年12月在蒿属胎儿-母体医学中心进行的一项前瞻性、开放性随机对照单中心研究。术后4周内进行随访。在36347名符合条件的女性中,1424人拒绝参与,34923人被纳入并以不等的入选概率进行随机分组,21991人被分配到治疗组,12932人被分配到对照组,且未接受任何安慰剂。在羊膜穿刺术前3天口服阿奇霉素,每日500毫克。主要终点是与手术相关的妊娠丢失。次要终点是胎膜早破率。
干预组中与羊膜穿刺术相关的流产率为7/21219名女性(0.03%,95%可信区间0.009 - 0.057),对照组为36/12529(0.28%,0.28 - 0.30)(p = 0.0019)。干预组胎膜早破率为14/21219(0.06%,0.031 - 0.101),对照组为140/12529(1.12%,0.94 - 1.30)(p = 0.001)。
孕中期羊膜穿刺术前使用抗生素预防可降低流产和胎膜破裂的风险。