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[Doppler waveforms patterns of vascular anastomoses in monochorionic twin pregnancies. A report of three cases and review of the literature].
- Source :
-
Journal de gynecologie, obstetrique et biologie de la reproduction [J Gynecol Obstet Biol Reprod (Paris)] 2007 Dec; Vol. 36 (8), pp. 777-85. Date of Electronic Publication: 2007 Jul 05. - Publication Year :
- 2007
-
Abstract
- Three cases of intermittent absent end-diastolic and reversed end-diastolic flow velocity (A/REDV) are reported in the proximal umbilical artery of the growth-retarded twin in monochorionic twin pregnancies. This typical doppler velocimetric pattern has been related to arterio-arterial anastomoses in two cases of intra-uterine growth retardation and in one case of twin-twin transfusion syndrome. According to the literature, superficial arterio-arterial anastomoses may be detected by doppler colour velocimetry in 75 to 85% of cases, while identification of arteriovenous connections is more difficult to be documented in vivo (50% of cases in experienced hands). The role of superficial vascular anastomoses, either arterio-arterial or venovenous, and that of deep arteriovenous communications is now well documented in the main complications of monochorionic pregnancies, particularly for twin-twin transfusion syndrome, intrauterine growth retardation, intrauterine fetal death and acardiac twins.
- Subjects :
- Adult
Female
Fetal Growth Retardation diagnostic imaging
Fetofetal Transfusion diagnostic imaging
Humans
Infant, Newborn
Male
Pregnancy
Pregnancy Outcome
Pregnancy Trimester, Second
Pregnancy Trimester, Third
Pregnancy, Multiple
Diseases in Twins diagnostic imaging
Pregnancy Complications diagnostic imaging
Twins, Monozygotic
Ultrasonography, Doppler, Color
Ultrasonography, Prenatal
Umbilical Arteries diagnostic imaging
Subjects
Details
- Language :
- French
- ISSN :
- 0368-2315
- Volume :
- 36
- Issue :
- 8
- Database :
- MEDLINE
- Journal :
- Journal de gynecologie, obstetrique et biologie de la reproduction
- Publication Type :
- Academic Journal
- Accession number :
- 17616263
- Full Text :
- https://doi.org/10.1016/j.jgyn.2007.05.011