A novel technique for prediction of preterm birth: fetal nasal flow Doppler
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Sertac Esin
,
Erhan Okuyan
,
Hatice Yagmur Zengin
Abstract
Objectives
Absence of fetal breathing movements (FBM) has been found to be a good predictor of preterm delivery in symptomatic patients. However, analysis of FBM patterns and Doppler measurement of them for preterm birth prediction have not been performed before. In this study, we aimed to investigate and analyze FBM patterns in symptomatic preterm labor patients by fetal ultrasonography and nasal Doppler.
Methods
This was a multicenter, prospective cohort study. Singleton pregnant patients between 24 and 37 gestational weeks diagnosed with preterm labor were included in the study. Patients were evaluated in three groups: no FBM (Group 1), regular FBM (Group 2), irregular FBM (Group3).
Results
Seventy-three patients were available for the final analysis after exclusion. Preterm delivery rate in 24 h in groups were 91.7, 32.7 and 100%, respectively. The absence of FBM (Group 1) was statistically significant for preterm delivery in for both 24 (91.7 vs. 42.6%, p=0.002) and 48 h (91.7 vs. 49.2%, p=0.006) when compared with fetal breathing positive Group 2 and 3. In fetal nasal Doppler analyses in Group 2, the inspiration/expiration number rate was significantly lower in the patients who delivered in 24 h (0.98±0.2 vs. 1.25±0.57, p=0.015). By using fetal nasal Doppler, combination of absence of FBM or irregular FBM or regular FBM with inspiration number/expiration number (I/E) <1.25 detects 94.6% of patients who will eventually deliver in the first 24 h after admission.
Conclusions
Examining FBM patterns and using nasal Doppler may help the clinician to differentiate those who will deliver preterm and may be an invaluable tool for managing preterm labor patients.
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Research funding: The present study was supported by the Baskent University Research Fund (project no. KA17/146). ClinicalTrials.gov Identifier: NCT03655379.
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Author contributions: All authors have accepted responsibility for the entire content of this manuscript and approved its submission.
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Competing interests: Authors state no conflict of interest.
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Informed consent: Informed consent was obtained from all individuals included in this study.
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Ethical approval: The study was approved by the Baskent University Institutional Review Board and Ethics Committee (Project no KA17/146). The trial was also registered in www.clinicaltrials.gov (ClinicalTrials.gov Identifier: NCT03655379). We have complied with the World Association Declaration of Helsinki regarding ethical conduct of research involving human subjects.
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© 2020 Walter de Gruyter GmbH, Berlin/Boston
Artikel in diesem Heft
- Frontmatter
- Review
- Clinical evaluation of labor: an evidence- and experience-based approach
- Original Articles – Obstetrics
- How fever is defined in COVID-19 publications: a disturbing lack of precision
- Initial review of pregnancy and neonatal outcomes of pregnant women with COVID-19 infection
- Usefulness of COVID-19 screen-and-test approach in pregnant women: an experience from a country with low COVID-19 burden
- Clinical chorioamnionitis at term X: microbiology, clinical signs, placental pathology, and neonatal bacteremia – implications for clinical care
- Cytokine profiling: variation in immune modulation with preterm birth vs. uncomplicated term birth identifies pivotal signals in pathogenesis of preterm birth
- Hyperechoic amniotic membranes in patients with preterm premature rupture of membranes (p-PROM) and pregnancy outcome
- A novel technique for prediction of preterm birth: fetal nasal flow Doppler
- Pregnant women’s knowledge and behaviour to prevent cytomegalovirus infection: an observational study
- Reference intervals and reliability of cavum septi pellucidi volume measurements by three-dimensional ultrasound between 19 and 24 weeks’ gestation
- First-trimester presentation of ultrasound findings in trisomy 13 and validation of multiparameter ultrasound-based risk calculation models to detect trisomy 13 in the late first trimester
- Pre-operative tranexemic acid vs. etamsylate in reducing blood loss during elective cesarean section: randomized controlled trial
- External validation of a prediction model on vaginal birth after caesarean in a The Netherlands: a prospective cohort study
- The influence of race on cervical length in pregnant women in Brazil
- Original Articles – Fetus
- A 24-segment fractional shortening of the fetal heart using FetalHQ
- Original Articles – Neonates
- Antenatal corticosteroids and short-term neonatal outcomes in term and near-term infants of diabetic mothers. Analysis of the Qatar PEARL-peristat registry
- Acute respiratory effect of transpyloric feeding for respiratory exacerbation in preterm infants
- Quality improvement for reducing utilization drift in hypoxic-ischemic encephalopathy management
- Letter to the Editor
- Cross transmission of SARS-CoV-2 and obstetric ultrasound
- ‘Getting to zero’ cross transmission of SARS-CoV-2 in obstetric ultrasound during COVID-19 pandemic
Artikel in diesem Heft
- Frontmatter
- Review
- Clinical evaluation of labor: an evidence- and experience-based approach
- Original Articles – Obstetrics
- How fever is defined in COVID-19 publications: a disturbing lack of precision
- Initial review of pregnancy and neonatal outcomes of pregnant women with COVID-19 infection
- Usefulness of COVID-19 screen-and-test approach in pregnant women: an experience from a country with low COVID-19 burden
- Clinical chorioamnionitis at term X: microbiology, clinical signs, placental pathology, and neonatal bacteremia – implications for clinical care
- Cytokine profiling: variation in immune modulation with preterm birth vs. uncomplicated term birth identifies pivotal signals in pathogenesis of preterm birth
- Hyperechoic amniotic membranes in patients with preterm premature rupture of membranes (p-PROM) and pregnancy outcome
- A novel technique for prediction of preterm birth: fetal nasal flow Doppler
- Pregnant women’s knowledge and behaviour to prevent cytomegalovirus infection: an observational study
- Reference intervals and reliability of cavum septi pellucidi volume measurements by three-dimensional ultrasound between 19 and 24 weeks’ gestation
- First-trimester presentation of ultrasound findings in trisomy 13 and validation of multiparameter ultrasound-based risk calculation models to detect trisomy 13 in the late first trimester
- Pre-operative tranexemic acid vs. etamsylate in reducing blood loss during elective cesarean section: randomized controlled trial
- External validation of a prediction model on vaginal birth after caesarean in a The Netherlands: a prospective cohort study
- The influence of race on cervical length in pregnant women in Brazil
- Original Articles – Fetus
- A 24-segment fractional shortening of the fetal heart using FetalHQ
- Original Articles – Neonates
- Antenatal corticosteroids and short-term neonatal outcomes in term and near-term infants of diabetic mothers. Analysis of the Qatar PEARL-peristat registry
- Acute respiratory effect of transpyloric feeding for respiratory exacerbation in preterm infants
- Quality improvement for reducing utilization drift in hypoxic-ischemic encephalopathy management
- Letter to the Editor
- Cross transmission of SARS-CoV-2 and obstetric ultrasound
- ‘Getting to zero’ cross transmission of SARS-CoV-2 in obstetric ultrasound during COVID-19 pandemic
