scholarly journals The Effect of Trans-Abdominal Chorionic Villus Sampling on Fetal Heart Rate and Placental Vascular Resistance Index: A Color Doppler Ultrasound Study

2021 ◽  
Author(s):  
Nazanin Farshchian ◽  
Farhad Naleini ◽  
Negin Farshchian ◽  
Parisa Bahrami Kamangar

Fetal hemodynamic changes can occur immediately following invasive chorionic villus sampling (CVS). We decided to study the possible effect of CVS on fetal heart rate (FHR), and uteroplacental resistance index (RI) changes using color Doppler ultrasound. Thirty-five pregnant patients with a gestational age of more than 12 weeks were included. Trans-abdominal CVS was done to assess the possibility of thalassemia. Before and after the CVS, color Doppler ultrasound was done to measure FHR and uteroplacental RI. Mean (SD) values for FHR before and after the CVS were 175.22 (±9) and 173.62 (±9.94) beats per minute, respectively; P=0.18. Mean (SD) uteroplacental RI before the CVS was 0.79 (0.07) which significantly increased to 0.82 (0.08); P=0.03. We observed a significant increase in resistance of blood flow in placental circulation after CVS. However, no significant change was observed regarding FHR after CVS.

Author(s):  
SIMCHA YAGEL ◽  
EYAL ANTEBY ◽  
MOSHE RON ◽  
DRORITH HOCHNER-CELNIKIER ◽  
REUVEN ACHIRON

2005 ◽  
Vol 20 (2) ◽  
pp. 116-120 ◽  
Author(s):  
Shahram Akhlaghpoor ◽  
Taraneh Hosseinipoor

2020 ◽  
Vol 8 ◽  
Author(s):  
Rik Vullings ◽  
Judith O. E. H. van Laar

Fetal monitoring is important to diagnose complications that can occur during pregnancy. If detected timely, these complications might be resolved before they lead to irreversible damage. Current fetal monitoring mainly relies on cardiotocography, the simultaneous registration of fetal heart rate and uterine activity. Unfortunately, the technology to obtain the cardiotocogram has limitations. In current clinical practice the fetal heart rate is obtained via either an invasive scalp electrode, that poses risks and can only be applied during labor and after rupture of the fetal membranes, or via non-invasive Doppler ultrasound technology that is inaccurate and suffers from loss of signal, in particular in women with high body mass, during motion, or in preterm pregnancies. In this study, transabdominal electrophysiological measurements are exploited to provide fetal heart rate non-invasively and in a more reliable manner than Doppler ultrasound. The performance of the fetal heart rate detection is determined by comparing the fetal heart rate to that obtained with an invasive scalp electrode during intrapartum monitoring. The performance is gauged by comparing it to performances mentioned in literature on Doppler ultrasound and on two commercially-available devices that are also based on transabdominal fetal electrocardiography.


Author(s):  
Paul Hamelmann ◽  
Rik Vullings ◽  
Alexander F. Kolen ◽  
Jan W. M. Bergmans ◽  
Judith O. E. H. van Laar ◽  
...  

2020 ◽  
Vol 212 ◽  
pp. 106255
Author(s):  
Paula G. Blanco ◽  
Marlene Huk ◽  
Camila Lapuente ◽  
Mariana Tórtora ◽  
Raúl Rodríguez ◽  
...  

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