Abstract
Amaç: Bu çalışmanın amacı fetal sağ kalp doppler bulgularının pulmoner olgunluğu belirlemedeki etkinliğini araştırmaktır. Yöntem: Çalışma geç preterm ve term gebelikleri olan kadınlara odaklanmıştır. Ana ölçümler arasında ana pulmoner arter ve sağ pulmoner arterin doppler bulguları, ayrıca mitral kapağın E/A dalga oranı (sol ventrikül gevşemesinin erken diyastolde en yüksek kan akım hızının atriyal kasılmanın neden olduğu geç diyastoldeki en yüksek hıza oranını temsil eder) ve lameller gövde sayısı yer almaktadır. Sonuç: Kontrol grubunda (84.70± 42.77) çalışma grubuna (41.21±34.81) kıyasla anlamlı derecede daha yüksek ortalama lameller vücut sayısı gözlemledik. Ek olarak, MPA ve RPA'nın sistolik-diastolik oranının (S/D) preterm grubunda (7.8±1.9, 7.4 ± 1.2) term grubuna (6.7±1.3,6.1±1.6) kıyasla anlamlı derecede daha yüksek olduğunu fark ettik. Ancak, RPA ve MPA'nın pulsatil indeksi ve direnç indekslerinde ve ivme/ejeksiyon zamanı oranında anlamlı bir fark bulamadık. Sonuç: Ana pulmoner arter ve sağ pulmoner arterin sistolik-diastolik oranının preterm vakalarda (çalışma grubu) anlamlı derecede daha yüksek olduğunu gözlemledik. Fetal akciğer olgunluğu, Doppler ultrasonografi kullanılarak invaziv olmayan bir şekilde değerlendirilebilir.
Keywords
akciğer maturasyonu doppler ultrasonografi lameller cisim preterm doğum fetal pulmoner arter
References
- Sankaran S. Creasy and Resnik’s Maternal–Fetal Medicine: Principles and Practice Sixth edition. Obstetric Medicine. 2012 Jun;5(2):88–9. Haram K, Mortensen JHS, Wollen AL. Preterm delivery: An overview. Vol. 82, Acta Obstetricia et Gynecologica Scandinavica. Acta Obstet Gynecol Scand; 2003. p. 687–704. J Gillen-Goldstein, A MacKenzie EF. Assessment of fetal lung maturity - UpToDate [Internet]. [cited 2020 Aug 28]. Available from: https://www. uptodate.com/contents/assessment-of-fetal-lung-maturity
Abstract
Objective:The aim of this study was to investigate the effectiveness of fetal right heart doppler findings in determining pulmonary maturity. Method:The study focused on women with late preterm and term pregnancies. The main measurements included the doppler findings of the main pulmonary arter and the right pulmonary artery, as well as the E/A wave ratio of the mitral valve, which represents the ratio of peak blood flow velocity during left ventricular relaxation in early diastole to peak velocity during late diastole caused by atrial contraction, and the lamellar body count. Result:We observed a significantly higher mean number of lamellar body count in the control group (84.70± 42.77) compared to the study group (41.21±34.81).Additionally, we noticed that the systolic-diastolic ratio (S/D) of the MPA and RPA was significantly higher in the preterm group (7.8±1.9, 7.4 ± 1.2) compared to the term group (6.7±1.3,6.1±1.6).However, we did not find any significant difference in the pulsatile index and resistance indices of RPA and MPA, as well as the acceleration/ejection time ratio. Conclusion:We observed that the systolic-diastolic ratio of the main pulmonary artery and right pulmonary artery was significantly higher in preterm cases (study group). Fetal lung maturity can be non-invasively assessed using Doppler ultrasonography.
Keywords
pulmonary maturation doppler ultrasonography lamellar body preterm birth fetal pulmonary artery
References
- Sankaran S. Creasy and Resnik’s Maternal–Fetal Medicine: Principles and Practice Sixth edition. Obstetric Medicine. 2012 Jun;5(2):88–9. Haram K, Mortensen JHS, Wollen AL. Preterm delivery: An overview. Vol. 82, Acta Obstetricia et Gynecologica Scandinavica. Acta Obstet Gynecol Scand; 2003. p. 687–704. J Gillen-Goldstein, A MacKenzie EF. Assessment of fetal lung maturity - UpToDate [Internet]. [cited 2020 Aug 28]. Available from: https://www. uptodate.com/contents/assessment-of-fetal-lung-maturity
Details
| Primary Language | English |
|---|---|
| Subjects | Paediatrics (Other), Obstetrics and Gynaecology |
| Journal Section | Research Article |
| Authors | |
| Submission Date | February 25, 2025 |
| Acceptance Date | July 7, 2025 |
| Publication Date | March 31, 2026 |
| DOI | https://doi.org/10.38136/jgon.1647058 |
| IZ | https://izlik.org/JA28EM79MP |
| Published in Issue | Year 2026 Volume: 23 Issue: 1 |