Doppler Blood Flow Characterization in Hepatic Veins in Children of the First Months of Life
With the purpose of frequency definition of three-, be- and monophase blood flow occurrence in hepatic veins 82 healthy children in the age from 22 days up to 4 months have been investigated. Ultrasound investigation of three main hepatic veins was carried out: right, middle and left. The three-phase blood flow in all three veins was found out in 41 (50.0%), monophase - in 12 (14.6%) and biphase - in 4 (4.9%) children. Only in 57 (69.5%) children Doppler curves of a blood flow were identical in all investigated hepatic veins. In the others 30.5% of cases various combinations three-, be- and monophase blood flow were presented. With increase in age biphase or monophase blood flow was registered less often. Sex of the child, food loading, change of functional activity (a dream, wakefulness) was not influenced on character of a blood flow in hepatic veins.