Umbilical artery blood flow velocity waveforms in pregnancy complicated by diabetes mellitus.
Umbilical artery blood velocity waveforms were recorded by a pulsed Doppler system in the third trimester of pregnancy in 16 diabetic women (12 class B, 1 class C, 3 class D) and the waveforms were analysed for resistance index (RI = peak systolic velocity minus end diastolic velocity/peak systolic velocity). There was no significant correlation between the RI values and either serum glucose (r = 0.385) or fructosamine levels (r = 0.380). However, the RI values were raised in two cases with serum glucose levels of over 300 mg/dl. With a fall in serum glucose levels, the RI values returned to the normal range. No abnormal umbilical artery velocity waveforms were found when the serum glucose level was below 200 mg/dl.
Ishimatsu
J
J
Department of Obstetrics and Gynecology, Kurume University School of Medicine, Fukuokaken, Japan.
Yoshimura
O
O
Manabe
A
A
Hotta
M
M
Matsunaga
T
T
Matsuzaki
T
T
Tetsuou
M
M
Hamada
T
T
D001783:Blood Flow Velocity / Q000502:physiology; D003920:Diabetes Mellitus / Q000000981:diagnostic imaging / Q000503:physiopathology*; D005260:Female; D006801:Humans; D011247:Pregnancy; D011254:Pregnancy in Diabetics / Q000503:physiopathology*; D014463:Ultrasonography; D014469:Umbilical Arteries / Q000502:physiology*