Erkoc Mustafa Fatih, Okur Aylin, Kara Mustafa, Caglayan Emel, Serin Halil Ibrahim, Erturk Sukru Mehmet, Gundogdu Fatma, Karacavus Seyhan
a Department of Radiology and.
b Department of Obstetrics and Gynecology , School of Medicine, Bozok University , Yozgat , Turkey .
J Matern Fetal Neonatal Med. 2016 Sep;29(17):2857-60. doi: 10.3109/14767058.2015.1107718. Epub 2015 Nov 23.
The purpose of our study was to evaluate the changes occurring in maximum flow velocity and waveform patterns of the portal and hepatic veins during pregnancy in second and third trimesters.
A total of 204 patients were randomly divided into the study and control groups. The control group was classified as group I; the study group was divided into two groups: group II, second trimester pregnancy (14-26 weeks, n = 91) and group III, third trimester pregnancy (26-40 weeks, n = 63). Vein waveforms were classified as triphasic, biphasic and monophasic.
Maximum flow velocities of both right hepatic vein and main portal veins were lower in group III compared with group I and group II (p < 0.05). On the basis of hepatic vein and portal vein waveforms, the incidence of biphasic pattern was prominent in group II (p < 0.05) whereas the monophasic pattern was prominent in group III (p < 0.05).
The results demonstrate that as gestational age progresses, maximum flow velocities of both right hepatic vein and main portal veins intend to be decreased with an increased incidence of monophasic wave form pattern, and may be accepted as sensitive parameters of indicators of physiological adaptations related to pregnancy.
