Intrauterine hemodynamic change in TTTS: the alterations in the inferior vena cava waveform in the donor fetus.
BACKGROUND
Significant hemodynamic changes are commonly observed in both fetuses in twin-twin transfusion syndrome.


RESULTS
We describe two donor fetus cases in twin-twin transfusion syndrome associated with abnormal waveform patterns in the inferior vena cava after therapeutic amnioreduction. Subsequent echocardiographic examinations demonstrated progressive deterioration of the cardiac function in the recipient fetuses.


CONCLUSIONS
We suggest that alterations in the inferior vena cava waveform in the donor fetuses may contribute to the accurate prediction of deterioration in fetal circulation after amnioreduction.
Morine
Mikio
M
Department of Obstetrics and Gynecology, The University of Tokushima, School of Medicine, Japan. mmorine@clin.med.tokushima-u.ac.jp
Maeda
Kazuhisa
K
Suto
Masanori
M
Kaji
Takashi
T
Irahara
Minoru
M
D000328:Adult; D001783:Blood Flow Velocity; D005260:Female; D005330:Fetofetal Transfusion / Q000150:complications / Q000000981:diagnostic imaging* / Q000503:physiopathology*; D005333:Fetus / Q000098:blood supply*; D006801:Humans; D020896:Hypovolemia / Q000209:etiology* / Q000503:physiopathology; D011247:Pregnancy; D011272:Pregnancy, Multiple; D013318:Stroke Volume; D014430:Twins, Monozygotic; D016216:Ultrasonography, Prenatal / Q000379:methods*; D014682:Vena Cava, Inferior / Q000000981:diagnostic imaging / Q000502:physiology*