TY - JOUR
T1 - A preliminary study of fetal ductus venosus blood flow during the first stage of labor
AU - Krapp, M.
AU - Denzel, S.
AU - Katalinic, A.
AU - Berg, C.
AU - Germer, U.
AU - Gembruch, U.
PY - 2002/11/1
Y1 - 2002/11/1
N2 - Objective: The measurement of fetal ductus venosus blood flow during labor by means of color Doppler sonography. Methods: 26 women between 37 and 41 weeks of gestation were included in the study. At various stages of cervical dilation (<2 cm, 2-4 cm, 6-8 cm, and fully dilated) blood flow velocity waveforms of the fetal ductus venosus during and between contractions were studied in fetuses with a negative non-stress test. The Pulsatility index for veins (PIV) and the Peak velocity index for veins (PVIV), respectively were calculated off-line. The mean±standard deviation between and during contractions were determined for descriptive analysis. Results: Waveforms were visualized during 139 contractions and 159 episodes of uterine relaxation in 24 of 26 fetuses (92.3%) in normal labor. Three and more waveforms were recorded, in 59.0% during contractions (82/139) and in 57.9% between contractions (92/159), respectively. The mean PIV and PVIV values during contractions were 1.68±1.02 and 1.46±0.72, respectively. Between contractions the values were 0.49±0.21 for the PIV and 0.44±0.18 for the PVIV, respectively. Conclusion: Ductus venosus blood flow can be visualized in labor. Further studies are needed to establish normal values.
AB - Objective: The measurement of fetal ductus venosus blood flow during labor by means of color Doppler sonography. Methods: 26 women between 37 and 41 weeks of gestation were included in the study. At various stages of cervical dilation (<2 cm, 2-4 cm, 6-8 cm, and fully dilated) blood flow velocity waveforms of the fetal ductus venosus during and between contractions were studied in fetuses with a negative non-stress test. The Pulsatility index for veins (PIV) and the Peak velocity index for veins (PVIV), respectively were calculated off-line. The mean±standard deviation between and during contractions were determined for descriptive analysis. Results: Waveforms were visualized during 139 contractions and 159 episodes of uterine relaxation in 24 of 26 fetuses (92.3%) in normal labor. Three and more waveforms were recorded, in 59.0% during contractions (82/139) and in 57.9% between contractions (92/159), respectively. The mean PIV and PVIV values during contractions were 1.68±1.02 and 1.46±0.72, respectively. Between contractions the values were 0.49±0.21 for the PIV and 0.44±0.18 for the PVIV, respectively. Conclusion: Ductus venosus blood flow can be visualized in labor. Further studies are needed to establish normal values.
UR - http://www.scopus.com/inward/record.url?scp=0036833658&partnerID=8YFLogxK
U2 - 10.1007/s00404-001-0260-9
DO - 10.1007/s00404-001-0260-9
M3 - Journal articles
C2 - 12410368
AN - SCOPUS:0036833658
SN - 0932-0067
VL - 267
SP - 19
EP - 22
JO - Archives of Gynecology and Obstetrics
JF - Archives of Gynecology and Obstetrics
IS - 1
ER -
