Correlation of the Procoagulant Activity in Amniotic Fluid to Gestational Age and Fetal Pulmonary Maturity

2015 ◽  
pp. 126-132 ◽  
Author(s):  
W. Leucht ◽  
H. Heyes ◽  
K. Musch
Keyword(s):  
Amniotic Fluid ◽  
Gestational Age ◽  
Procoagulant Activity

The Procoagulant Properties of Amniotic Fluid

1979 ◽  
Author(s):  
Christine J. English ◽  
L. Poller
Keyword(s):  
Amniotic Fluid ◽  
Gestational Age ◽  
Procoagulant Activity ◽  
Contact Activation ◽  
Activation Effect

The procoagulant properties of amniotic fluid have been studied in over one hundred and fifty serial specimens. The results suggest that amniotic fluid contains tissue procoagulant activity which is not related to gestational age. An activating effect in vitro, on tactor X, however, increases progressively throughout pregnancy. An additional action of amniotic fluid in potentiating clotting may be via a contact activation effect.

Sonographic Assessment of Amniotic Fluid Volume using Single Deepest Pocket (SDP) among Igbo Women with Uncomplicated Singleton Pregnancies.

2019 ◽  
Vol 2 (1) ◽  
pp. 1-18
Author(s):  
Chijioke Okeudo ◽  
B.U. Ezem
Keyword(s):  
Amniotic Fluid ◽  
Gestational Age ◽  
Cross Sectional Study ◽  
Fluid Volume ◽  
Singleton Pregnancy ◽  
Cross Sectional ◽  
South Eastern ◽  
Amniotic Fluid Volume ◽  
The Mean ◽  
Singleton Pregnancies

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.

Laser Ablation of Posterior Urethral Valves by Fetal Cystoscopy

2015 ◽  
Vol 37 (4) ◽  
pp. 267-273 ◽  
Author(s):  
José María Martínez ◽  
Narcis Masoller ◽  
Roland Devlieger ◽  
Esther Passchyn ◽  
Olga Gómez ◽  
...  
Keyword(s):  
Renal Failure ◽  
Laser Ablation ◽  
Amniotic Fluid ◽  
Gestational Age ◽  
Significant Risk ◽  
Operation Time ◽  
Posterior Urethral Valves ◽  
Consecutive Series ◽  
Urethral Valves ◽  
Median Operation Time

Objective: To report the results of fetal cystoscopic laser ablation of posterior urethral valves (PUV) in a consecutive series in two referral centers. Methods: Twenty pregnant women with a presumptive isolated PUV were treated with fetal cystoscopy under local anesthesia. Identification and fulguration of the PUV by one or several firing-contacts with diode laser were attempted. Perinatal and long-term outcomes were prospectively recorded. Results: The median gestational age at procedure was 18.1 weeks (range 15.0-25.6), and median operation time was 24 min (range 15-40). Access to the urethra was achieved in 19/20 (95%) cases, and postoperative, normalization of bladder size and amniotic fluid was observed in 16/20 (80%). Overall, there were 9 (45%) terminations of pregnancy and 11 women (55%) delivered a liveborn baby at a mean gestational age of 37.3 (29.1-40.2) weeks. No infants developed pulmonary hypoplasia and all were alive at 15-110 months. Eight (40% of all fetuses, 72.7% of newborns) had normal renal function and 3 (27.3%) had renal failure awaiting renal transplantation. Conclusion: Fetoscopic laser ablation for PUV can achieve bladder decompression and amniotic fluid normalization with a single procedure in selected cases with anyhydramnios. There is still a significant risk of progression to renal failure pre or postnatally.

CAUTION IN INTERPRETATION OF AMNIOTIC FLUID INDICES OF FETAL PULMONARY MATURITY

PEDIATRICS ◽  
1989 ◽  
Vol 84 (2) ◽  
pp. A24-A24
Author(s):  
Student
Keyword(s):  
Amniotic Fluid ◽  
Gestational Age ◽  
Caesarian Section ◽  
Misleading Information

When gestational age has been firmly established by standard obstetric criteria, the risks of routine amniocentesis prior to repeat caesarian section in the uncomplicated term gestation [to obtain amniotic fluid indices of fetal pulmonary maturity] outweigh the usefulness of the potentially uninformative or misleading information gained.

scholarly journals Frequency of Caesarean Section in Pregnancies with Borderline Amniotic Fluid Index at Term

2017 ◽  
Vol 23 (2) ◽  
Author(s):  
Natasha Bushra ◽  
Khaula Zeeshan ◽  
Sara Ejaz ◽  
Javeria Mushtaq ◽  
Khadija Waheed ◽  
...  
Keyword(s):  
Caesarean Section ◽  
Amniotic Fluid ◽  
Gestational Age ◽  
Cross Sectional Study ◽  
Induction Of Labour ◽  
Amniotic Fluid Index ◽  
Cross Sectional ◽  
Increased Risk ◽  
Failed Induction ◽  
One Year

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.

scholarly journals Stillbirths - Determining the associated factors and causes according to relevant condition at death: an experience from Pokhara, Nepal

2018 ◽  
Vol 6 (2) ◽  
pp. 58-65
Author(s):  
Junu Shrestha ◽  
Rami Shrestha ◽  
Sonam Gurung
Keyword(s):  
Birth Weight ◽  
Antenatal Care ◽  
Amniotic Fluid ◽  
Gestational Age ◽  
Cross Sectional Study ◽  
Cross Sectional ◽  
Intrauterine Growth ◽  
Factors Associated ◽  
Relevant Condition ◽  
Cord Prolapse

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

scholarly journals The possibility of modifications methods of determine volume of amniotic fluid

2016 ◽  
Vol 65 (3) ◽  
pp. 12-17
Author(s):  
Viktor A Mudrov
Keyword(s):  
Body Mass Index ◽  
Amniotic Fluid ◽  
Pregnant Women ◽  
Body Mass ◽  
Gestational Age ◽  
First Trimester ◽  
Fetal Weight ◽  
Abdominal Circumference ◽  
Pregnancy And Childbirth ◽  
Maternity Hospitals

Selection of the optimal tactics of pregnancy and childbirth significantly depends on the expected volume of amniotic fluid. The amount of amniotic fluid reflects a condition of a fetus and changes at pathological conditions of both a fetus, and an uteroplacental complex. The aim of the study was a modification of methods for determining the expected volume of amniotic fluid. On the basis of maternity hospitals Trans-Baikal Region in the years 2013-2015 was held retrospective and prospective analysis of 300 labor histories, which were divided into 3 equal groups: 1 group - pregnant women with a body mass index (BMI) for Quetelet less than 24, Group 2 - with a BMI from 24 to 30, group 3 - with a BMI more than 30. In order to determine the expected volume of amniotic fluid were used the subjective method, the Chamberlain’s and Phelan’s methods. The error in determining volume of amniotic fluid by the existing methods exceeds 10 %, that defined need of creation of a quantitative method. On the basis of mathematical and 3d-modeling of the volume of amniotic fluid and fetal weight determined pattern change, which is expressed by the formula: VAF = IAF × М × π / GA2, where IAF - index of amniotic fluid (mm), M - fetal weight (g), GA - gestational age (weeks). Through a comprehensive analysis of anthropometric research of the pregnant women defined formula’s volume of amniotic fluid: V = 0,017 × HUF × (AC - 25 × BMI / GA)2 - М, where GA - gestational age (weeks), AC - abdominal circumference of the pregnant women (cm), BMI - body mass index for Quetelet in the first trimester of pregnancy (kg/m2), HUF - height of an uterine fundus (cm), M - the estimated fetal weight (g). In calculating volume of amniotic fluid according to the proposed ultrasonic formula error does not exceed 5,3 %, anthropometric formula error does not exceed 10,2 %. Thus, the method has a smaller error compared to the standard, and can be used to reliably determine volume of amniotic fluid in II and III trimester of pregnancy.

Sign in / Sign up

Export Citation Format

Share Document