scholarly journals EP04.06: Systolic and diastolic time interval ratios of the ductus venosus flow velocity waveform in fetal growth restriction

2018 ◽  
Vol 52 ◽  
pp. 206-206
Author(s):  
T. Suekane ◽  
N.W. Yokoi ◽  
K. Nakai ◽  
Y. Kurihara ◽  
K. Nakagawa ◽  
...  
Keyword(s):  
Flow Velocity ◽  
Fetal Growth ◽  
Fetal Growth Restriction ◽  
Growth Restriction ◽  
Ductus Venosus ◽  
Time Interval ◽  
Velocity Waveform ◽  
Flow Velocity Waveform ◽  
Diastolic Time

scholarly journals Time interval analysis of ductus venosus and cardiac cycles in relation with umbilical artery pH at birth in fetal growth restriction

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Tomoki Suekane ◽  
Daisuke Tachibana ◽  
Yasushi Kurihara ◽  
Natsuko Yokoi ◽  
Naomi Seo ◽  
...  
Keyword(s):  
Fetal Growth ◽  
Interval Analysis ◽  
Fetal Growth Restriction ◽  
Umbilical Artery ◽  
Growth Restriction ◽  
Ductus Venosus ◽  
Time Interval ◽  
Z Score ◽  
Time Intervals ◽  
Z Scores

Abstract Background The aims of this study were to evaluate the time intervals of flow velocity waveforms (FVW) of ductus venosus (DV) and cardiac cycles, as well as the pulsatility index of DV-FVW (DV-PI), in correlation with umbilical artery (UA) pH at birth in fetal growth restriction (FGR) complicated with placental insufficiency. Methods Data were retrospectively retrieved from pregnancies complicated by FGR. FGR was defined as an estimated fetal weight below − 2.0 S.D. with an elevated UA-PI. Time interval assessments of DV-FVW were as follows: the duration of systolic wave was divided by the duration of diastolic wave and defined as DV-S/D. We also measured the following time intervals of ventricular inflow through tricuspid valve (TV) and mitral valve (MV): (iii), from the second peak of ventricular inflow caused by atrial contraction (A-wave) to the opening of atrio-ventricular valves and: (iv), from the opening of atrio-ventricular valves to the peak of A-wave. (iii)/(iv) was expressed as TV-S/D and MV-S/D, for TV and MV, respectively. The time interval data were transformed into z-scores. Results Thirty-one FGR fetuses were included in this study. Both DV-PI and DV-S/D showed significant correlation with UA-pH (r = − 0.677, p = < 0.001 and r = 0.489, p = 0.005 for DV-PI and z-score of DV-S/D, respectively) and more significances were observed in FGR ≤ 28 + 6 gestational weeks (r = − 0.819, p < 0.001 and r = 0.726, p = 0.005, for DV-PI and z-score of DV-S/D, respectively) than in FGR > 28 + 6 gestational weeks (r = − 0.634, p = 0.007 and r = 0.635, p = 0.020, for DV-PI and z-score of DV-S/D, respectively). On the other hand, TV-S/D and MV-S/D showed no significant correlation with UA-pH, although these z-scores indicated significant decreases compared with normal references. Conclusions Time interval analysis of DV-FVW might be a valuable parameter, as well as DV-PI, for the antenatal prediction of fetal acidemia in the management of FGR fetuses.

Hypercoiled cord can cause a reversible abnormal Doppler in ductus venosus in cases of fetal growth restriction

2018 ◽  
Author(s):  
Shigenori Iwagaki ◽  
Yuichiro Takahashi ◽  
Rika Chiaki ◽  
Kazuhiko Asai ◽  
Masako Matsui ◽  
...  
Keyword(s):  
Fetal Growth ◽  
Fetal Growth Restriction ◽  
Growth Restriction ◽  
Ductus Venosus

scholarly journals Modern concepts of low birth weight and fetal growth restriction

2021 ◽  
Vol 102 (3) ◽  
pp. 347-354
Author(s):  
O V Yakovleva ◽  
I E Rogozhina ◽  
T N Glukhova
Keyword(s):  
Fetal Growth ◽  
Gestational Age ◽  
Small For Gestational Age ◽  
Fetal Growth Restriction ◽  
Growth Restriction ◽  
Abdominal Circumference ◽  
Ductus Venosus ◽  
Management Algorithm ◽  
Pubmed Database ◽  
Single Standard

The aim of this work is to study the state of the problem of the development of small-for-gestational-age fetus and fetal growth restriction over the past 5 years. A review of randomized trials of the PubMed database for the period of 2015 to 2020 was carried out. Experts reached an agreement on the definition of diagnostic criteria for small-for-gestational-age fetus and fetal growth restriction, a clinically valid classification was created, and the main monitoring strategies were developed. Due to the different pathogenesis, fetal growth restriction is divided into early and late. The observation algorithm includes tests that have shown higher sensitivity and specificity. There is no single standard for the median weight and abdominal circumference of a fetus, indicators of the reference range for fetal Doppler. Smoking cessation and taking acetylsalicylic acid at a dose of 150 mg at high risk of preeclampsia is recommended to prevent the small-for-gestational-age fetus and fetal growth restriction. The pregnancy management algorithm includes Doppler ultrasound examination of the umbilical artery, cardiotocography. If this pathology occurs before 32 weeks of pregnancy, the blood flow in ductus venosus is additionally examined, and after 32 weeks of pregnancy, the middle cerebral artery blood velocities and cerebroplacental ratio are assessed. Indicators of Doppler velocimetry and cardiotocography, which serve as criteria for early termination of pregnancy, are developed, measures are proposed to improve neonatal outcomes prevention of respiratory distress syndrome at 2434 weeks of gestation, as well as magnesium therapy for fetal neuroprotection. The problems of preventing fetal growth restriction and the algorithm for monitoring pregnant women who do not have risk factors for small-for-gestational-age fetus, management tactics and indications for delivery while slowing fetal weight gain remain unresolved.

scholarly journals EP09.05: Characteristic changes of the time interval of ventricular inflow patterns in the fetal growth restriction

2019 ◽  
Vol 54 (S1) ◽  
pp. 287-287
Author(s):  
T. Suekane ◽  
M. Koyama ◽  
D. Tachibana ◽  
A. Nakano ◽  
T. Misugi ◽  
...  
Keyword(s):  
Fetal Growth ◽  
Fetal Growth Restriction ◽  
Growth Restriction ◽  
Time Interval

scholarly journals Endoscopic Placental Laser Coagulation in Monochorionic Diamniotic Twins with Type II Selective Fetal Growth Restriction

2015 ◽  
Vol 38 (2) ◽  
pp. 86-93 ◽  
Author(s):  
Gergana Peeva ◽  
Sarah Bower ◽  
Laszlo Orosz ◽  
Petya Chaveeva ◽  
Ranjit Akolekar ◽  
...  
Keyword(s):  
Fetal Growth ◽  
Fetal Growth Restriction ◽  
Laser Surgery ◽  
Cervical Length ◽  
Growth Restriction ◽  
Ductus Venosus ◽  
Laser Coagulation ◽  
Multivariable Logistic Regression Analysis ◽  
Type Ii ◽  
Discharge From Hospital

Objective: To determine predictors of survival in monochorionic diamniotic twins with selective fetal growth restriction type II (sFGR-II), with or without twin-to-twin transfusion syndrome (TTTS), treated by endoscopic placental laser coagulation. Methods: Laser surgery was performed at 20 (15-27) weeks' gestation in 405 cases of sFGR-II with and 142 without coexisting TTTS. Multivariable logistic regression analysis was performed to determine significant predictors of survival to discharge from hospital. Results: There was survival of the small twin in 216 (39.5%) and of the large twin in 379 (69.3%) cases. Significant predictors of survival of both the small and larger twin were ductus venosus Doppler findings in the small twin, gestational age at laser and cervical length, but not the presence of TTTS or Doppler findings in the large twin. Conclusions: In sFGR-II, survival after laser surgery is primarily dependent on the condition of the small twin.

scholarly journals P10.27: The size of the ductus venosus in fetal growth restriction

2005 ◽  
Vol 26 (4) ◽  
pp. 445-445
Author(s):  
J. Airoldi ◽  
D. C. Wood ◽  
A. Ness ◽  
E. Done ◽  
V. Berghella ◽  
...  
Keyword(s):  
Fetal Growth ◽  
Fetal Growth Restriction ◽  
Growth Restriction ◽  
Ductus Venosus
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