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目的:研究无胎膜早破孕产妇羊膜腔内细菌状况。方法:用随机对照的方法,于剖宫产时抽取羊水进行细菌培养,对无胎膜早破待产和试产后的孕产妇羊膜腔内细菌发生率、细菌种类进行统计,并对试产组人工破膜2小时前后、羊水有无粪染的细菌发生率进行统计和比较。结果:羊水细菌阳性例数;(1)26例特产组为4例,阳性率为15.38%,35例试产组为18例,阳性率为51.43%,有极显著性差异(P<0.01)。(2)试产组中人工破膜后<2小时和>2小时两组比较,<2小时18例中阳性例数6例,阳性率33.3%;>2小时17例中阳性例数12例,阳性率为70.6%,有显著性差异(P<0.05).(3)试产组中羊水是否粪染两组比较,羊水色清13例中阳性例数6例,阳性率46.2%;羊水粪染22例中阳性例数12例,阳性率54.5%,无显著性差异(P>0.05)。结论:无胎膜早破的孕产妇试产后羊膜腔内细菌发生率显著增加;人工破膜和试产越久,细菌感染率越高;羊水粪染不是细菌感染的标志。
Objective: To study the bacterial status of amniotic cavity in maternal women without premature rupture of membranes. Methods: In a randomized controlled trial, amniotic fluid was drawn during cesarean section for bacterial culture. The incidence of bacteria in the amniotic cavity and the type of bacteria in the pregnant women without or with premature rupture of membranes were measured. 2 hours before and after rupture of membranes, the incidence of meconium-stained amniotic fluid count and comparison. Results: The number of positive cases of amniotic fluid bacteria (1) 26 cases of specialty group was 4 cases, the positive rate was 15.38%, 35 cases trial production group was 18 cases, the positive rate was 51.43%, there was a significant difference (P <0.01) . (2) Compared with two hours after artificial rupture of membrane in experimental group, the number of positive cases in 6 cases was <2 hours and the positive rate was 33.3% in 2 hours; in 12 cases> 12 hours, the number of positive cases was 12 cases , Positive rate was 70.6%, there was a significant difference (P <0.05). (3) In trial group, amniotic fluid was meconium-stained comparison between the two groups, amniotic fluid color clear in 13 cases of positive cases in 6 cases, the positive rate of 46.2% In 22 cases of fecal infection, 12 cases were positive, with a positive rate of 54.5%. There was no significant difference (P> 0.05). Conclusion: The incidence of amniocentesis in pregnant women without premature rupture of membranes is significantly increased. The longer the artificial rupture of membranes and trial production, the higher the rate of bacterial infection. The meconium-stained amniotic fluid is not a sign of bacterial infection.