Factors Related To Late Pregnancy With Less Amniotic Fluid And Analysis Of Pregnancy Outcome

Objective:By collecting the most common clinical pathogenic factors, this research mainly analyzed some related factors which can affect late pregnancy with less amniotic fluid and the effects on neonatal outcome after taking different delivery modes. This research provides a theoretical basis for the study of related pathogenic factors to amniotic fluid decrease and reasonable solutions, thus can select the best delivery mode, increase the rate of vaginal delivery and to some extent reduce the rate of cesarean delivery which is high for a long time. Methods:Selecting 120 patients who were in Gynecology and Obstetrics of Affiliated Hospital of Yan’an University in January 2015-January 2016 and were diagnosed as less amniotic fluid as the observation group; at the same time, randomly select 660 patients who were also in this hospital with normal amniotic fluid volume as the control group. Both of the two groups are full-term, single fetus, cephalic, underwent prenatal ultrasonography1-7 days before admission, and age, gestational age was not statistically significant, which are comparable. Both groups contain pregnant women with gestational hypertension and related medical illness, with no premature rupture of membranes. After collecting the urinalysis and blood pressure of the pregnant women admitted to hospital to check for the presence or absence of hypertension in pregnancy, monitor fetal heart rate and the presence or absence of fetal distress, record gestational age at delivery, delivery mode and amniotic fluid contamination, record min Apgar score after delivery to judge the degree of asphyxia, observe whether fetal aspiration pneumonia.In the amniotic fluid less group randomly selected 110 cases of rehydration therapy, record its amniotic fluid index value before and after the treatment, and the rest did not observation of rehydration therapy group, 110 cases of amniotic fluid index comparison.Analyze the data with SPSS21.0 software. Results:1. The rates of less amniotic fluid set of gestational hypertension, gestational diabetes and expired pregnancy are 23.6%, 10.9% and 13.03% respectively, the amniotic fluid of normal gestational hypertension, gestational diabetes and expired pregnancy rates are 8.18%, 2.73% and 3.03% respectively, compared sample rate between the two groups(P<0.05, the difference was statistically significant.2. Group amniotic fluid fetal distress, amniotic and placental calcification rate of incidence rates were 19.39%, 23.94%, 12.73%, normal amniotic fluid group rate of fetal distress, amniotic and placental calcification rate rate 3.64%, 6.97%, respectively, 2.21% between the two groups of samples of amniotic fluid less than normal group rate higher(P <0.05), the difference was statistically significant.3. Two groups before treatment AFI value were6.08±0.72、6.10±0.72,t = 0.172, P > 0.05, there was no statistically significant difference; After treatment, the treatment group AFI value was 9.58±1.25, compared with no treatment group AFI value 5.21±1.04 rise significantly(P < 0.05), the difference was statistically significant.4. Less amniotic fluid group cesarean delivery rate was 53.64%, significantly higher than the normal amniotic fluid group cesarean delivery rate of 17.6%(P<0.05), the difference is statistically significant.5. Less amniotic fluid group fewer neonatal severe asphyxia rate was 4.85%, the mild asphyxia rate was 26.36%, were significantly higher than that of normal amniotic fluid group of severe asphyxia rate 1.21%, mild asphyxia rate was 8.29%(P<0.05), the difference was statistically significant. 6.Amniotic fluid group cesarean section rate was 26.55% asphyxia, aspiration pneumonia rate was 3.39%, while the vaginal delivery rate of 36.60% of neonatal asphyxia, aspiration pneumonia rate was 1.31%(P> 0.05) the difference was not statistically significant.Conclusion:1. The occurrence of late pregnancy is less fluid with gestational hypertension disease, gestational diabetes, expired pregnancy, and placental calcification is closely related factors.2. Late pregnancy amniotic fluid less fetal distress, amniotic fluid contamination, neonatal severe asphyxia rate, mild asphyxia rate and cesarean section rate were higher than in normal amniotic fluid group of women.3. The third trimester of the amniotic fluid slant those different delivery method of neonatal asphyxia and the influence of aspiration pneumonia was no significant difference.4. Late pregnancy patients with fewer amniotic fluid after rehydration treatment actively, AFI value can be increased significantly, to improve the pregnancy outcome.