scholarly journals P14.07: The relationship of intrapartum amniotic fluid index and perinatal outcomes

2010 ◽  
Vol 36 (S1) ◽  
pp. 219-219
Author(s):  
K. Ulker ◽  
I. Ozdemir
2011 ◽  
pp. 20-24
Author(s):  
Thi My Dung Ha ◽  
Ngoc Thanh Cao ◽  
Thi Song Huong Tran

Objective: To characterize ultrasound images of placenta and amniotic fluid in cases of singleton pregnancies beyond term predictions, and also explore the relationship between placenta, amniotic fluid and labor transfer status, postpartum child status. Image properties of prenatal placenta and amniotic fluid are immediately examined with ultrasound in 267 cases of postterm pregnancy beyond prediction at Obstetric Department, Hue Central Hospital. Results: In postterm pregnancy, placenta thickness decreases gradually according to gestational age. Oligohydramnios is 30.3%. There is a correlation between amniotic fluid index and birth method with r = 0.41. Sensitivity is 89.15%. Specificity is 48.55%. There is also a correlation between amniotic fluid echogenicity and method of birth: r = 0.478. Sensitivity is 97.67%. Specificity is 42.75%. Amniotic fluid index and baby Clifford's syndrome are also relevant, with r=0.466. Sensitivity is 83.78%. Specificity is 78.26%. Conclusions: Ultrasound scanning of amniotic fluid properties should be noted in the case of postterm pregnancy.


PEDIATRICS ◽  
1966 ◽  
Vol 38 (5) ◽  
pp. 858-864
Author(s):  
Arthur J. Moss ◽  
Ovidio Rettori ◽  
Norman S. Simmons

The viscosity of amniotic fluid was measured in 52 ewes and the results correlated with the postnatal course of the lambs delivered by cesarean section. Viscosity was not related to length of gestation or to the immediate prepartum condition of the ewe, but a definite relationship was found between amniotic fluid viscosity (AFV) and the postnatal course of the fetus. Of 22 lambs considered viable, 9 failed to survive. In 10 of the 13 survivors, AFV was less than 1.6; whereas in the nonsurvivors, AFV varied between 1.6 and 4.4. All of the nonsurvivors experienced respiratory difficulty associated with copious amounts of extremely viscous secretions in the mouth and oropharynx. The substance responsible for the high AFV was a mucoprotein and was detectable in all samples with a viscosity of 1.24 or more but in none with a viscosity below 1.24. The data suggest the possibility that fetal distress may induce qualitative or quantitative alterations of fetal mucous secretions in utero which subsequently could impede lung expansion at birth.


2021 ◽  
pp. 1-10
Author(s):  
Peña Dieste Pérez ◽  
Luis M. Esteban ◽  
Ricardo Savirón-Cornudella ◽  
Faustino R. Pérez-López ◽  
Sergio Castán-Mateo ◽  
...  

<b><i>Objective:</i></b> This study aimed to assess reduced fetal growth between 35 weeks of gestation and birth in non-small for gestational age fetuses associated with adverse perinatal outcomes (APOs). <b><i>Material and Method:</i></b> It is a retrospective cohort study of 9,164 non-small for gestational age fetuses estimated by ultrasound at 35 weeks. The difference between the birth weight percentile and the estimated percentile weight (EPW) at 35 weeks of gestation was calculated, and we studied the relationship of this difference with the appearance of APO. APOs were defined as cesarean or instrumental delivery rates for nonreassuring fetal status, 5-min Apgar score &#x3c;7, arterial cord blood pH &#x3c;7.10, and stillbirth. Fetuses that exhibited a percentile decrease between both moments were classified into 6 categories according to the amount of percentile decrease (0.01–10.0, 10.01–20.0, 20.01–30.0, 30.01–40.0, 40.01–50.0, and &#x3e;50.0 percentiles). It was evaluated whether the appearance of APO was related to the amount of this percentile decrease. Relative risk (RR) was calculated in these subgroups to predict APOs in general and for each APO in particular. Receiver operating characteristic and area under curves (AUC) for the difference in the percentile was calculated, used as a continuous parameter in the entire study population. <b><i>Results:</i></b> The median gestational age at delivery in uncomplicated pregnancies was 40.0 (39.1–40.7) and in pregnancies with APOs 40.3 (49.4–41.0), <i>p</i> &#x3c; 0.001. The prevalence of APOs was greater in the group of fetuses with a decrease in percentile (7.6%) compared to those with increased percentile (4.8%) (<i>p</i> &#x3c; 0.001). The RR was 1.63 (95% CI: 1.365–1.944, <i>p</i> &#x3c; 0.001). Although the differences were significant in all decreased percentile groups, RRs were significantly higher when decreased growth values were &#x3e;40 points (RR: 2.036, 95% CI: 1.581–2.623, <i>p</i> &#x3c; 0.001). The estimated value of the AUC for percentile decrease was 0.58 (0.56–0.61, <i>p</i> &#x3c; 0.001). <b><i>Conclusion:</i></b> Fetuses with a decrease in the EPW between the ultrasound at 35 weeks of gestation and birth have a higher risk of APOs, being double in fetuses with a decrease of &#x3e;40 percentile points.


2021 ◽  
Vol 17 ◽  
Author(s):  
Roopa Padavagodu Shivananda ◽  
Rekha Anbu ◽  
Shubha Rao ◽  
Nivedita Hegde ◽  
Anjali Suneel Mundkur ◽  
...  

Background: The best method of estimation of amniotic fluid volume is a matter of ongoing debate. Objectives: To determine the perinatal & maternal outcomes in pregnant patients when the amniotic fluid volume was assessed by the amniotic fluid index (AFI) in comparison to the single deepest vertical pocket (SDVP). Methods: We studied abnormal Cardiotocograph, meconium stained amniotic fluid, birth weight <2.5kg, Apgar score at 5 min <7, cord blood pH <7.2 & necessity for NICU admission as perinatal outcomes. Rate of diagnosis of oligohydramnios, induction of labor for oligohydramnios & mode of delivery were observed in maternal outcomes. Results: Of the 697 pregnant patients recruited, 353 were in the AFI and 344 in the SDVP group. Perinatal outcomes were similar in both. In the AFI group, the number of women diagnosed with oligohydramnios was higher (p = 0.0333) & the rate of induction was also higher (p = 0.003378). Vaginal deliveries were more in the SDVP group. The Receiver Operating Characteristic curves showed statistically significant correlation with NICU stay, birth-weight, and mode of delivery. While an AFI of >5cm and SDVP of >1.9cm had good sensitivity in predicting babies with a birth weight of ≥ 2.5kg and avoiding NICU admissions, an AFI of > 5.8cm and an SDVP of > 1.9 cm had a sensitivity of around 80% in predicting successful vaginal deliveries. Conclusion: The SDVP method has a slight edge over the AFI in terms of lower inductions and higher vaginal deliveries with comparable perinatal outcomes.


Author(s):  
Snehal Gaware ◽  
V. B. Bangal

Background: Oligohydramnios refers to amniotic fluid volume that is less than expected for gestational age. We aimed to assess the perinatal outcomes in pregnancies with oligohydramnios.Methods: The prospective study was conducted in the Department of Obstetrics and Gynecology, Pravara Medical College, Loni in which 200 consecutive singleton pregnancies delivered vaginally, with intact membranes were included. Amniotic fluid index was determined using the Phelan’s technique at the time of admission and women were diagnosed with oligohydramnios if AFI was five or less, which formed the first group and the rest of mother formed the second group. Perinatal outcomes were noted in the proforma as well.Results: Of the 200 mothers included in the study, 38 had AFI ≤ 5. Baseline characteristics was similar in both the groups. Most common antenatal risk factors studies were pregnancy induced hypertension (29% vs 12%; p value <0.05), intrauterine growth restriction (34% vs 10%; p value <0.001) and severe anemia (21% vs 9%; p value <0.05). Proportion of pregnancies needing induction of labor and birth weight less than 2.5 kgs were significantly higher among mothers with oligohydramnios.Conclusions: Authors observed that induction of labor and low birth weight were significantly associated with oligohydramnios. Prospective randomized trials are needed to establish whether early induction of labor in the presence of a oligohydramnios improves perinatal outcome.


Author(s):  
Jeyamani B. ◽  
Anurekha J. P. ◽  
Arun Daniel J.

Background: Oligohydramnios is the term coined for a condition where the amount of liquor amnii is less than 200 ml at term. Using an ultrasonogram, oligohydramnios can be deliberated when the vertical pocket of liquor is less than 2 cm or when amniotic fluid index (AFI) is less than 5 cm. Oligohydramnios is reported to occur in 1 to 5% of total pregnancies. It has been associated with adverse maternal and foetal outcomes.Methods: This hospital-based follow-up study was conducted among 540 pregnant women at 37 weeks attending to the Department of Obstetrics and Gynaecology for a period of 1 year from January to December 2018. All included pregnant women were subjected to routine ultrasound examination and assessment of amniotic fluid volume using Amniotic fluid index.Results: The incidence of oligohydramnios was 17.04% (n=92) among the included women and 62% (n=57) among them were primigravida. Among those women diagnosed with Oligohydramnios, the caesarean section rate was 56.5% (n=52), the common indications for LSCS being fetal distress 44. 2% (n=23) and IUGR 34.6% (n=18). The oligohydramnios pregnancies had more associated post-dated deliveries (28.3%), pregnancy induced hypertension (10.9%) and gestational diabetes (8.7%). It was also associated with higher incidence of low birth weight (27.2%), NICU admissions (32.6%), congenital anomalies (3.3%) and fetal deaths (5.4%).Conclusions: The study showed that an amniotic fluid index of less than 5 at term was associated with adverse maternal and perinatal pregnancy outcomes emphasizing the importance of amniotic fluid volume surveillance during the antenatal period.


2004 ◽  
Vol 113 (6) ◽  
pp. 1040-1045 ◽  
Author(s):  
Michael Schatz ◽  
Mitchell P. Dombrowski ◽  
Robert Wise ◽  
Valerija Momirova ◽  
Mark Landon ◽  
...  

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