Reference range for amniotic fluid index measurements in a Brazilian population

2014 ◽  
Vol 42 (4) ◽  
Author(s):  
Edward Araujo Júnior ◽  
Wellington P. Martins ◽  
David Baptista Silva Pares ◽  
Claudio Rodrigues Pires ◽  
Sebastião Marques Zanforlin Filho

AbstractThe aim of this study was to determine the reference range for amniotic fluid index (AFI) measurements in a large sample of the Brazilian population.This was a retrospective cross-sectional study on 3837 normal singleton pregnancies between 18+0 and 38+6 weeks of pregnancy. The AFI was measured from the largest vertical pockets of amniotic fluid in the four quadrants of the uterine cavity. To assess the correlation between AFI and gestational age (GA), polynomial equations were calculated, with adjustments using the determination coefficient (The mean maternal age and gestational age were 27.01±6.57 years and 30.43±5.29 weeks, respectively. The mean AFI ranged from 12.2±2.6 cm at 18 weeks to 11.6±6.0 cm at 38 weeks of pregnancy. The correlation between AFI and GA was best represented by a linear equation: AFI=17.78–0.153*GA (We established the reference range for the AFI in a large sample of the Brazilian population. This reference range can be used to monitor deviations in the volume of amniotic fluid in fetuses at high risk for intrauterine growth disturbances.

2019 ◽  
Vol 2 (1) ◽  
pp. 1-18
Author(s):  
Chijioke Okeudo ◽  
B.U. Ezem

Background: The amniotic fluid is fundamental for proper fetal development and growth. Ultrasound visualization of the amniotic fluid permits both subjective and objective estimates of the amniotic fluid. Objective: The objective of this study was to determine the reference values of normal single deepest pocket (SDP) – upper and lower limits, mean SDP and variation of the SDP with gestational age among Igbo women of South-Eastern Nigeria extraction carrying uncomplicated singleton pregnancy. Methodology: This was a prospective cross sectional study involving 400 women carrying uncomplicated singleton pregnancies and who were sure of the date of the first day of their last menstrual period. The single deepest pocket / maximum vertical pool were determined once at presentation at the hospital.. The study was conducted from January 1st to December 31st 2015. The second author carried out all the scanning. The SDP was obtained. Results: The womens’ mean and median ages were the same at 28 years. The gestational age range of the pregnancies was 14-41 weeks. The mean SDP was 5.8cm, while the 5th and 95th percentiles were 3.3cm and 8.5cm respectively. There was no difference in the mean SDP in both term and preterm. There was irregular but continuous rise of mean SDP to a peak of 6.8cm at gestational age of 39 weeks. In conclusion, the participants had a mean SDP of 5.8cm. There was also a positive correlation between SDP and Gestational age. We therefore recommend a longitudinal study to assess perinatal outcome and abnormal amniotic fluid volume among Igbo women of South-Eastern Nigeria. Key words: Single Deepest Pocket, Uncomplicated Singleton Pregnancy, Igbo Women.


2017 ◽  
Vol 23 (2) ◽  
Author(s):  
Natasha Bushra ◽  
Khaula Zeeshan ◽  
Sara Ejaz ◽  
Javeria Mushtaq ◽  
Khadija Waheed ◽  
...  

AbstractThe increased risk of caesarean section after induced labour is well documented. Rate of induction of labour has doubled in the past decade from 10 to 20%. Low Amniotic Fluid Index (AFI) as an isolated finding leads to increased obstetrical interventions but without any improvement in outcome.Objectives:  To determine the frequency of caesarean section due to failed induction in pregnancies at term with borderline AFI.Patients and Methods:  This cross-sectional study was conducted at Department of Obstetrics and Gynaecology, Unit-III, SIMS/Services Hospital, Lahore. The duration of study was one year from January, 2015 to December, 2015. A total of 150 patients were included in this study. AFI was measured by recent obstetric ultrasound. All patients with borderline AFI (5 – 8 cm) were included in the study. They were induced by glandin E2 gel. If induction of patients failed with two doses of glandin E2 gel, given vaginally 6 hours apart, patients were considered for cesarean section. The outcome measure was rate of caesarean section due to failed induction. All data were analyzed by SPSS version 20.Results:  Mean age of the patients was 30.34 ± 6.68 years. Mean gestational age was noted 38.34 ± 1.05 weeks. Out of 150 patients, 103 (68.7%) were para 1 – 3 and 47 patients (31.3%) were para 4 – 6. Caesarean section due to failed induction with borderline AFI was performed in 27 patients (18.0%). Stratification with regard to age, gestational age and parity was carried out and was found significant only for gestational age being > 39 weeks.Conclusion:  It is concluded that failed induction of labour at term in women with borderline AFI is not associated with increased risk of caesarean delivery.


2018 ◽  
Vol 6 (2) ◽  
pp. 58-65
Author(s):  
Junu Shrestha ◽  
Rami Shrestha ◽  
Sonam Gurung

Background: Stillbirth contributes significantly to perinatal mortality. This study was conducted with aim to determine various factors associated with it and to define the causes of stillbirth according to relevant condition at birth.Materials and Methods :This is prospective cross-sectional study conducted in the Department of Obstetrics and Gynaecology of Manipal Teaching Hospital from July 2015 to June 2017. All cases of stillbirth occurring during antenatal or intrapartum period after 28 weeks of gestation or fetus weighing 1000 grams or more were included. Detailed demographic parameters were noted. After delivery, fetus, placenta, umbilical cord and amniotic fluid were noted in detail. Data was entered in SPSS version 16 and analysis done.Results: The stillbirth rate was 22 per 1000 births. Low educational level of women, lack of antenatal care, multiparous status, gestational age less than 34 weeks, low birth weight and male gender of fetus were found to be significantly associated with stillbirths. The cause of fetal death could be identified according to relevant condition at death in 84% of cases. Only in 16%, the cause of stillbirth was not identified. Intrauterine growth restriction was the commonest cause of stillbirth (22%), followed by congenital anomalies (15%) and hypertensive disorders of pregnancy (14%). Other causes were abruptio (7%), intrapartum asphyxia (7%) and rupture uterus (5%). Other minor causes were anemia, diabetes, cord prolapse and amniotic fluid abnormalities.Conclusion :Low level of education, lack of quality antenatal care, multiparity, low gestational age and birth weight and male sex of fetus were factors associated with stillbirth. The cause of stillbirth was identified in most of the cases and largely was due to intrauterine growth restriction.Journal of Nobel Medical CollegeVolume 6, Number 2, Issue 11, July-December 2017, 58-65


2020 ◽  
Vol 7 (8) ◽  
pp. 414-419
Author(s):  
Dr. Abhinaya Arun Raj ◽  
◽  
Dr. K. Maheswari ◽  

Introduction: This study was done to assess the utility of foot length in determining theanthropometric parameters of a newborn in a tertiary care teaching hospital. Materials andMethods: This cross-sectional study among 270 newborns were done at Sri Venkateswaraa medicalcollege hospital and research centre, from Nov 2018 to May 2020. All the healthy live newbornswere taken into the study and newborns with congenital lower limb anomalies were excluded.Results: The mean birth weight of the neonate 2.948+0.344 kg which ranged from 2.050 kg to3.750kg. The mean foot length, head circumference and chest circumference of the foot length was8.113+0.468 cm, 48.989+1.093 cm, 34.437+0.659 cm and 32.372+0.734 cm respectively. The footlength had a maximum correlation with birth weight (r-value=0.905) followed by gestational age (r-value=0.809), length (r-value=0.786), head circumference (r-value=0.719) and chest circumference(r-value=0.603). Conclusion: Foot length had a significant correlation with birth weight andgestational age of the neonates. Foot length also correlated significantly with other anthropometricvariables like length, head circumference and chest circumference.


Author(s):  
Samta Solanki ◽  
Anusha S ◽  
B S Meena

Background: Ultrasonographic assessment of gestational age by using different foetal parameter such as BPD, FL, AC are highly reliable in first and second trimester in pregnancy. In third trimester reliability of any single parameter has limitations. Methods: This was a hospital based comparative cross-sectional study done in the Department of Obstetrics and Gynaecology, S.M.S. Medical College and attached hospitals, Jaipur, Rajasthan. The period of study was from June 2018 to October 2019. Results: The mean TCD at 15 weeks and 40 weeks was 15.00 ± 0.00mm and 53.33±1.155mm respectively. The mean BPD at 16 weeks and 40 weeks was 33.50±0.70mm and 93±1.528mm respectively. The mean HC at 15 weeks and 40 weeks was 111.00±1,41mm and 340±2.00mm respectively. The mean FL at 15 weeks and 40 weeks was 18.50±0.70mm and 77.67±1.528mm respectively. The mean AC at 15 weeks and 40 weeks was 99.00±1.41mm and 365.33±8.32mm respectively. Conclusion:  We conclude that foetal transcerebellar diameter can thus be used as an alternative foetal parameter to assess gestational age and can be used in cases of wrong dates or when other routine parameters are not conclusive or did not accurately predict gestational age for e.g. in cases of hydrocephalus, brachycephaly, dolicocephaly, intrauterine growth restriction, achondroplasia or short limb dwarfism. Keywords: Gestational age, Linear regression, BPD


2013 ◽  
Vol 39 (1) ◽  
pp. 42-44 ◽  
Author(s):  
MA Ferdous ◽  
MM Sharif ◽  
AS Mohiuddin ◽  
F Shegufta

This cross sectional study was carried out on 60 pregnant Bangladeshi women in the department of Radiology and Imaging, BIRDEM for measurement of Pulsatility Index (PI) of umbilical artery of their fetuses by duplex colour Doppler sonography during 2nd and 3rd trimester of pregnancies. Considering total 2nd and 3rd trimesters the mean PI value of umbilical artery was 1.24 (SD±0.27). While considering the gestational in separate trimesters, study showed that the value of PI in 2nd trimester was 1.33 (SD±0.29) and in 3rd trimester PI was 1.18 (SD±0.25). Paired t test shows there was a highly significant (t=35.79, df=59, Level of significance=0.001) difference between mean values of PI in different gestational ages. It was observed that there was gradual decrease of PI value with increase of gestational age (r= -0.207) but this decrease of PI was not statistically significant (p=0.113). Regression analysis between dependent PI value and independent gestational age showed linear negative relationship but this was not statistically significant (p=0.11). This study revealed that the Pulsatility index of umbilical artery was decreased with increase of gestational age from 2nd to 3rd trimester. DOI: http://dx.doi.org/10.3329/bmrcb.v39i1.15809 Bangladesh Med Res Counc Bull 2013; 39: 42-44


Author(s):  
Nasim Shirgholami ◽  
Fatemeh Abdi ◽  
Mahta Mazaheri ◽  
Razieh Sadat Tabatabaee

Background: Amniocentesis, like other invasive methods, has complications such as abortion, premature rupture - second pregnancy and at 29 weeks of membranes, infection, bleeding, etc. Here, we aimed to study the complications of amniocentesis in pregnant women. Methods: This descriptive cross-sectional study was included 409 women with positive first and second stage screening or required amniocentesis referred to Baghaeipour Clinic in 2017. Data was collected by a pre-prepared questionnaire. Results: The mean age of the patients and gestational age was 33.49 ± 6.51 years and 17.39 ± 1.36  weeks, respectively. 132 patients (32.2%) had a history of abortion. Regarding the frequency of needle passage through the placenta, the results showed that in 369 people (90.2%) the needle did not pass through the placenta and in 40 people (9.8%). The needle has passed through the pair. Regarding the frequency distribution of amniocentesis complications, fetal death in (2.4%), bleeding in (2.2%) and PROM (1.7%) were observed in patients and no case of infection and abortion was observed. In terms of age, gestational age, gestational number, placental location, needle passage, aspirated fluid color, history of abortion and type of delivery, there were no significant differences. Conclusion: In this study the most common complication of amniocentesis was fetal death (2.4%), followed by bleeding and Spotting (2.2%), PROM (1.7%), infection and abortion, respectively.


2015 ◽  
Vol 2015 ◽  
pp. 1-5 ◽  
Author(s):  
Berna Akova-Budak ◽  
Sertaç Argun Kıvanç ◽  
Osman Okan Olcaysü

Purpose. To investigate the association of birth parameters with refractive status in different age groups of Caucasian children.Materials and Methods. This cross-sectional study included 564 eyes of 282 children aged 4 to 17 years. All children underwent complete ophthalmologic examination. The children were divided into three groups according to their refractive status (emmetropia,myopia, and hyperopia), ages (4–7, 8-9, 10–12, and 13–17), and appropriateness for gestational age, respectively.Results. The mean age of the children was9.2±2.8(age range 4–17 years). The mean spheric equivalent was+0.3±1.7(range: (−10.0)–(+10.0) diopters). The mean birth weight and gestational age were2681.1±930.8grams (750–5000 grams) and37.2±3.7weeks (25–42 weeks). According to multinominal logistic regression analysis, children with myopia were more likely to have higher birth weights than emmetropic children (OR: 1.0, 95% CI: 1.000–1.001, andP=0.028). The hypermetropes were found to be significantly small for gestational age between 13 and 17 years of age.Conclusion. Birth weight and appropriateness for gestational age as birth parameters may have an impact on development of all types of refractive errors. The hypermetropic children tended to be small for gestational age.


2017 ◽  
Vol 24 (01) ◽  
pp. 102-105
Author(s):  
Farkhunda Akhtar ◽  
Arooj Aziz ◽  
Arfa Hamid ◽  
Tooba Hamid

Background: Amniotic fluid plays major role in fetal growth & development.Abnormalities of fluid volume can affect fetal development causing many structural anomalies.Maternal dehydration leads to changes in amniotic fluid index by changing net movement of fluidinto or from the fetus. Study Design: Cross sectional study was carried out to asses increaseincidence of reduced amniotic fluid index in Quetta due to dehydration. Period: Year of 2015.Method: The study was a cross sectional study for this purpose 50 pregnant patients referringto obstetric Out Patient Department of Combined Military Hospital Quetta were investigatedfor changes (improvement, or no change) in amniotic fluid index after hydration therapy. Theunder studied population was pregnant women between 20th_ 38th week of gestation referringto obstetric Out Patient Department of Combined Military Hospital Quetta with amniotic indexless than 10.The study was conducted after approval of ethical committee. Result: Patientsshowed significant improvement in AFI after hydration therapy. Conclusion: QUETTA region,a combination of dry and cold weather leads to decrease fluid intake and greater insensiblelosses that results in reduced AFI. Increased incidence of reduced AFI is highly due to maternaldehydration that can be improved with maternal hydration.


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