Influence of newborn head circumference and birth weight on the delivery mode of primipara: what is more important?
-
Karolina Passerini
,
Juozas Kurmanavicius
Abstract
Objectives
Aim of the study was to analyze the impact of head circumference (HC) and birth weight (BW) on the delivery mode and delivery outcomes.
Methods
Study 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.
Results
OR 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).
Conclusions
The 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.
Funding source: No funding
Research funding: None declared.
Author contributions: All authors have accepted responsibility for the entire content of this manuscript and approved its submission.
Competing interests: Authors state no conflict of interest.
Informed consent: Informed consent was obtained from all individuals included in this study.
Ethical approval: The Ethics Committee of the Kanton Zürich approved the study (BASEC Nr. 2016-01580 07.02.2017).
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© 2020 Walter de Gruyter GmbH, Berlin/Boston
Articles in the same Issue
- Frontmatter
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- Perinatal outcomes in vanishing twin pregnancies following assisted reproductive technology (ART) – a systematic review and meta-analysis
- Mini Review
- Cervical insufficiency: a noteworthy disease with controversies
- Original Articles – Obstetrics
- Individualized birth length and head circumference percentile charts based on maternal body weight and height
- Cellular immune responses in amniotic fluid of women with a sonographic short cervix
- Comparison of buprenorphine and methadone in the management of maternal opioid use disorder in full term pregnancies
- Influence of newborn head circumference and birth weight on the delivery mode of primipara: what is more important?
- Estimated fetal weight and severe neonatal outcomes in preterm prelabor rupture of membranes
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- Effects of nifedipine on fetal cardiac function in preterm labor
- Violence against trainees: urgent ethical challenges for medical educators and academic leaders in perinatal medicine
- Original Articles – Newborns
- Comparison of image quality in brain MRI with and without MR compatible incubator and predictive value of brain MRI at expected delivery date in preterm babies
- Survey on clinical use and non-use of recombinant human erythropoietin in European neonatal units
- An alternative approach to developing guidelines for the management of an anticipated extremely preterm infant
Articles in the same Issue
- Frontmatter
- Review
- Perinatal outcomes in vanishing twin pregnancies following assisted reproductive technology (ART) – a systematic review and meta-analysis
- Mini Review
- Cervical insufficiency: a noteworthy disease with controversies
- Original Articles – Obstetrics
- Individualized birth length and head circumference percentile charts based on maternal body weight and height
- Cellular immune responses in amniotic fluid of women with a sonographic short cervix
- Comparison of buprenorphine and methadone in the management of maternal opioid use disorder in full term pregnancies
- Influence of newborn head circumference and birth weight on the delivery mode of primipara: what is more important?
- Estimated fetal weight and severe neonatal outcomes in preterm prelabor rupture of membranes
- Which technique is better to place a manoeuvrable vacuum extractor cup on the flexion point? Vacca vs. Bird technique
- Pregnancy-specific transcriptional changes upon endotoxin exposure in mice
- Effects of nifedipine on fetal cardiac function in preterm labor
- Violence against trainees: urgent ethical challenges for medical educators and academic leaders in perinatal medicine
- Original Articles – Newborns
- Comparison of image quality in brain MRI with and without MR compatible incubator and predictive value of brain MRI at expected delivery date in preterm babies
- Survey on clinical use and non-use of recombinant human erythropoietin in European neonatal units
- An alternative approach to developing guidelines for the management of an anticipated extremely preterm infant
