Fetal head circumference versus fetal weight at term as a predictor of labour outcome

Background: Several models have been proposed to predict the need for an LSCS. With reference to this, the impact of the size of the fetal head traversing the birth canal is an important determinant of delivery outcomes. We examined the association between the head circumference and mode of delivery and perinatal outcomes, when compared to birth weight predicted by scan.Methods: This was a retrospective study, on 800 electronic delivery records between December 2019 and May 2021. Sociodemographic data, obstetrical parameter, term scan findings of head circumference and estimated fetal weight, and labour and perinatal outcomes were collected and analysed.Results: HC >95th centile was found to be comparatively more predictive and statistically significant compared to EFW >95th centile in the prediction of LSCS, with the most common indication being cephalopelvic disproportion. Prolonged second stage of labour was statistically significant in both cohort A and B, undergoing vaginal delivery. It was also noted that a significant number of newborns in cohort A required NICU admissions, while NICU admissions after emergency LSCS was significantly higher in the cohort B (p=0.0032) though the overall 5 and 10 minute APGAR scores and duration of stay were comparable in the groups classified on basis of EFW and HC.Conclusions: The above statistics observed on an Indian population may aid obstetricians in the planning of the mode of delivery, improve pre-labor counselling and efficient management of mothers of large babies.

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Accuracy of ultrasonic fetal weight estimation using head and abdominal circumference and femur length

Medicinski pregled ◽

10.2298/mpns0512548m ◽

2005 ◽

Vol 58 (11-12) ◽

pp. 548-552 ◽

Cited By ~ 1

Author(s):

Ljiljana Mladenovic-Segedi ◽

Dimitrije Segedi

Keyword(s):

Birth Weight ◽

Head Circumference ◽

Fetal Weight ◽

Abdominal Circumference ◽

Weight Estimation ◽

Fetal Head ◽

Total Body Mass ◽

Femur Length ◽

Fetal Weight Estimation ◽

Gynecology And Obstetrics

Introduction Former investigations have shown that the accuracy of fetal weight estimation is significantly higher if several ultrasonic fe?tal parameters are measured, because the total body mass depends on the size of fetal head, abdominal circumference and femur length. The aim of this investigation was to establish the best regression model, that is a number of combinations of fetal parameters providing the most accurate fetal weight estimation in utero in our population. Material and methods This prospective study was carried out at the Gynecology and Obstetrics Clinic of the Clinical Center Novi Sad. It included 270 pregnant women with singleton pregnancies within 72 hours of delivery who underwent ultrasound measurements of the biparietal diameter (BPD), head circumference (HC), ab?dominal circumference (AC) and femur length (FL). Results In regard to fetal weight estimation formulas, the deviation was lowest using regression models that simultaneously analyzed four fetal parameters (0.55%) with SD ?7.61%. In these models the estimates of fetal weights were within ?5% of actual birth weight in 48.89%, and within ?10% of actual birth weight in 81.48%. Good results were also obtained using AC, FL measurements (0.92% ? 8.20) as well as using AC, HC, FL measurements (-1.45% ? 7.81). In our sample the combination of AC and FL model gave better results in fetal weight estimation (0.92 ? 8.20%) than the one using BPD and AC (2.97 ? 8.83%). Furthermore, the model using parameters AC, HC and FL showed a lower error in accuracy (-1.45 ? 7.81%) than the model using BPD, AC and FL (2.51 ? 7.82%). Conclusion This investigation has confirmed that the accuracy of fetal weight estimation increases with the number of measured ultra?sonic fetal parameters. In our population the greatest accuracy was obtained using BPD, HC, AC and FL model. In cases when fast estimation of fetal weight is needed, AC, HC, FL model may be appropriate, but if fetal head circumference cannot be measured (amnion rupture and/or fetal head already in the pelvis) the AC, FL model should be used.

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Altered intrauterine ultrasound, fetal head circumference growth and neonatal outcomes among suspected cases of congenital Zika syndrome in Brazil

Revista Brasileira de Saúde Materno Infantil ◽

10.1590/1806-9304201600s100002 ◽

2016 ◽

Vol 16 (suppl 1) ◽

pp. S7-S15 ◽

Cited By ~ 3

Author(s):

Alex Sandro Rolland Souza ◽

Ariani Impieri de Souza ◽

Silvia de Lourdes Loreto Faquin ◽

Orlando Gomes dos Santos Neto ◽

Emanuele Honorato ◽

...

Keyword(s):

Gestational Age ◽

Linear Form ◽

Head Circumference ◽

Perinatal Outcomes ◽

Ultrasound Diagnosis ◽

Random Regression ◽

Morphological Alteration ◽

Fetal Head ◽

Regression Effects ◽

Congenital Zika Syndrome

Abstract Objectives: to describe altered intrauterine ultrasound, analyze fetal head circumference (HC) growth and neonates' outcomes among presumed cases of congenital Zika syndrome in Brazil. Methods: 30 women were included in the study with suspected history of Zika virus (ZIKV) infection during pregnancy and fetal's brain altered on ultrasound diagnosis. Sociodemographic and obstetric characteristics, prenatal altered ultrasounds, HC and other perinatal outcomes have been described. The relation between HC and gestational age was analyzed by using random regression effects based on polynomials fractions. The Z test was calculated to determine an instant variant mean rate of the HC for each gestational age. Results: the mean gestational age of the ultrasound diagnosis was 33.3 + 4.7 weeks and HC at birth was 28.9 + 1.6 cm. The main altered brain ultrasound was microcephaly (96.7%). The analysis of the fetal head circumference showed an estimated increase of the average HC, as to gestational age, it did not occur in a linear form. The instant HC variation rate increased according to gestational age (p<0,001). Conclusions: Fetal's main morphological alteration was microcephaly, observing an increase in the head circumference according to gestational age in a non-linear form and the variation decreased with gestational age.

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Prevalence and Perinatal Outcomes of Singleton Term Breech Delivery in Wolisso Hospital, Oromia Region, Southern Ethiopia: A Cross-Sectional Study

Journal of Environmental and Public Health ◽

10.1155/2017/9413717 ◽

2017 ◽

Vol 2017 ◽

pp. 1-8 ◽

Cited By ~ 1

Author(s):

Temesgen Debero Mere ◽

Tilahun Beyene Handiso ◽

Abera Beyamo Mekiso ◽

Markos Selamu Jifar ◽

Shabeza Aliye Ibrahim ◽

...

Keyword(s):

Perinatal Mortality ◽

Perinatal Outcome ◽

Mode Of Delivery ◽

Birth Asphyxia ◽

Perinatal Outcomes ◽

Cross Sectional Study ◽

Fetal Weight ◽

Sectional Study ◽

Cross Sectional ◽

Breech Delivery

Background.Breech deliveries have always been topical issues in obstetrics. Neonates undergoing term breech deliveries have long-term morbidity up to the school age irrespective of mode of delivery.Objective. To determine prevalence and perinatal outcomes of singleton term breech delivery.Methods. Hospital based cross-sectional study was conducted on 384 participants retrospectively. Descriptive and analytical statistics was used.Result. A total of 384 breech deliveries were included. Prevalence of singleton breech deliveries in the hospital was 3.4%. The perinatal outcome of breech deliveries was 322 (83.9%). Adverse perinatal outcome of singleton term breech delivery was significantly associated with women’s age of greater than or equal to 35 years (AOR = 2.62, 95% CI = 1.14–6.03), fully dilated cervix (AOR = 0.48, 95% CI = 0.25–0.91), ruptured membrane (AOR = 5.11, 95% CI = 2.25–11.6), and fetal weight of <2500 g (AOR = 6.77, 95% CI = 3.22–14.25).Conclusion. Entrapment of head, birth asphyxia, and cord prolapse were the most common causes of perinatal mortality. Factors like fetal weight <2500 gm, mothers of age 35 years and above, those mothers not having a fully dilated cervix, and mothers with ruptured membrane were associated with increased perinatal mortality.

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OC13.01: Managing “big” babies: the impact of fetal head circumference

Ultrasound in Obstetrics and Gynecology ◽

10.1002/uog.17634 ◽

2017 ◽

Vol 50 ◽

pp. 25-26

Author(s):

M. Lipschuetz ◽

S.M. Cohen ◽

O. Yagel ◽

D. Kabiri ◽

H. Amsalem ◽

...

Keyword(s):

Head Circumference ◽

Fetal Head ◽

The Impact

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Intrapartum fetal head circumference and estimated fetal weight as predictors of operative delivery

International Journal of Gynecology & Obstetrics ◽

10.1002/ijgo.12098 ◽

2017 ◽

Vol 137 (1) ◽

pp. 34-39 ◽

Cited By ~ 3

Author(s):

Noha H. Rabei ◽

Amr M. El-Helaly ◽

Amr H. Farag ◽

Ahmed K. El-Naggar ◽

Mohamed K. Etman ◽

...

Keyword(s):

Head Circumference ◽

Fetal Weight ◽

Operative Delivery ◽

Fetal Head ◽

Estimated Fetal Weight

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Influence of newborn head circumference and birth weight on the delivery mode of primipara: what is more important?

Journal of Perinatal Medicine ◽

10.1515/jpm-2019-0410 ◽

2020 ◽

Vol 48 (7) ◽

pp. 681-686

Author(s):

Karolina Passerini ◽

Juozas Kurmanavicius ◽

Tilo Burkhardt ◽

Dalia Balsyte

Keyword(s):

Birth Weight ◽

Head Circumference ◽

Descriptive Analysis ◽

Mode Of Delivery ◽

University Hospital ◽

Delivery Mode ◽

Delivery Outcome ◽

Delivery Outcomes ◽

Study Population ◽

The Impact

AbstractObjectivesAim of the study was to analyze the impact of head circumference (HC) and birth weight (BW) on the delivery mode and delivery outcomes.MethodsStudy population consisted of pregnancy, delivery and newborn data from 1,762 women, who delivered between 2004 and 2016 at University Hospital of Zurich (UHZ). Odds ratio (OR) with 95% confidence intervals (CI) were calculated for mode of delivery. Newborns were sorted into four groups according HC or BW. To evaluate the association between HC and delivery outcome, a descriptive analysis was performed. In addition reference charts of newborn HC at term were constructed.ResultsOR for instrumental delivery (ID) was 2.37 (CI 95%, 1.63–3.46), for C-Section (CS) 3.74 (CI 95%, 1.49–9.37) when HC >36 cm. OR for ID was 1.59 (CI 95%, 1.02–2.50), for CS 3.18 (CI 95% 1.08–9.350) when BW was >4,000 g. OR for ID was 2.15 (95% CI, 1.69–2.73), for CS 1.93 (95% CI, 0.89–4.18) when HC ≥36 cm and BW <4000 g. OR for ID was 2.23 (95% CI, 1.35–3.67), for CS 4.39 (95% CI, 1.48–12.99) when HC ≥36 cm and BW ≥4,000 g. HC ≥36 cm was defined as large in our study. Mothers with higher age and body mass index delivered babies with larger HC (p<0.05). Blood loss and duration of expulsion period and BW was associated with larger HC (p<0.05).ConclusionsThe rate of ID and CS increased in case of a larger HC and greater BW. However, the main prognostic factor for ID was size of HC: ≥36 cm, but not macrosomia.

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The association between isolated oligohydramnios at term and pregnancy outcome and perinatal outcome in case of isolated oligohydramnosis: a retrospective analysis

International Journal of Reproduction Contraception Obstetrics and Gynecology ◽

10.18203/2320-1770.ijrcog20215090 ◽

2021 ◽

Vol 11 (1) ◽

pp. 136

Author(s):

Vijay M. Kansara ◽

Kunal D. Kadakar ◽

Akash S. Chikani ◽

Pinal A. Pateliya

Keyword(s):

Amniotic Fluid ◽

Perinatal Outcome ◽

Mode Of Delivery ◽

Perinatal Outcomes ◽

Labour Induction ◽

Control Group ◽

Amniotic Fluid Index ◽

Observational Cohort ◽

Adverse Perinatal Outcomes ◽

The Impact

Background: Current study was carried out to assess the impact of isolated oligohydramnios on perinatal outcomes and mode of delivery.Methods: A retrospective observational cohort study was conducted at term pregnancy with sonographic finding of isolated oligohydramnios (AFI <5 cm) were recruited for the study. Uterine anomaly and high risk pregnancies were excluded from the study. The mode of delivery and perinatal outcome were compared with control group of pregnancy with normal amniotic fluid (AFI >5-25 cm).Results: When compared to the normal AFI, women with oligohydramnios had significantly lower birth weight babies and were delivered at a significantly earlier gestational age. However there was no difference in the APGAR scores at birth and NICU admissions between the two groups. Reactive NST had more chances of good APGAR score at 1 and 5 minute and that lower the AFI more the probability of nonreactive NST and abnormal Doppler. The number of inductions and caesareans done for foetal reasons were significantly higher in the exposed group.Conclusions: Obstetric and perinatal outcome remains similar in both isolated oligohydramnios with reactive NST as well as in patients with normal amniotic fluid index. Isolated oligohydramnios is not associated with adverse perinatal outcomes. However, it increases the risk for labour induction and caesarean section.

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INACTIVE HEPATITIS B CARRIER AND PREGNANCY OUTCOMES

Pakistan Armed Forces Medical Journal ◽

10.51253/pafmj.v70i6.2909 ◽

2020 ◽

Vol 70 (6) ◽

pp. 1874-79

Author(s):

Rabiah Anwar ◽

Kashif Razzaq

Keyword(s):

Hepatitis B ◽

Gestational Hypertension ◽

Mode Of Delivery ◽

Perinatal Outcomes ◽

Carrier Status ◽

Emergency Cesarean ◽

Increased Risk ◽

Significant Difference ◽

The Impact ◽

Hepatitis B Carrier

Objective: To assess the impact of hepatitis B carrier status on pregnancy and perinatal outcome. Study Design: Cross sectional study. Place and Duration of Study: Department of Gynaecology and Obstetrics, Pakistan Naval Ship Shifa Hospital,Karachi, from Feb 2017 to Jan 2018. Methodology: A total of 9526 women delivered during study period. 9305 women fulfilling the inclusion criteriawere included in study. Two hundred and twenty one (221) women were excluded because of not fulfilling theinclusion criteria. Out of study group, 9104 women were HBsAg negative while 201 had positive hepatitis Bcarrier status. Antenatal complications (such as gestational diabetes, gestational hypertension, pre eclampsia),mode of delivery (vaginal delivery, elective cesarean, emergency cesarean) and perinatal outcomes (pretermdelivery, low birth weight at delivery, live birth rate, APGAR score at 1 and 5 min) were observed amonghepatitis B carrier and noncarrier. Results: There was no significant difference in point prevalence of major antenatal complications, mode ofdelivery and perinatal outcomes in HBsAg carriers and noncarriers. A slightly higher rate of preterm birth wasobserved in hepatitis B carriers (4.9%) as compared to noncarriers (2.6%). Conclusion: Hepatitis B carriers have slightly increased risk of preterm delivery.

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