Blood pressures in newborns with twin-twin transfusion syndrome.
OBJECTIVE
In addition to unbalanced flow through placental anastomoses, evidence suggests that transfer of circulating vasoactive elements from the donor to the recipient contribute to the pathological process of twin-twin transfusion syndrome (TTTS). The objective of this study was to test the hypothesis that TTTS recipients have higher blood pressure (BP) at birth than donors.


METHODS
Chart review of all TTTS infants born from 1996 to 2007 with both twins alive 24 h (51 pairs; average gestational age 30±3 weeks).


RESULTS
Both systolic and diastolic neonatal BPs were significantly higher in recipients. When expressed relative to predicted BP for birth weight (BW), BP were lower than expected in donors and higher in recipients.


CONCLUSIONS
Data indicate that TTTS recipients have BP significantly higher than donors and than BP expected for BW. The long-term impact of these early hemodynamic perturbations remains to be determined.
Department of Pediatrics, Research Center, CHU Sainte-Justine, Université de Montréal, Québec, Canada.
I
I
Mercanti
A
A
Boivin
B
B
Wo
V
V
Vlieghe
C
C
Le Ray
F
F
Audibert
J-C
JC
Fouron
L
L
Leduc
A M
AM
Nuyt
D000804:Angiotensin II / Q000097:blood; D001034:Apgar Score; D001724:Birth Weight; D001794:Blood Pressure / Q000502:physiology*; D006332:Cardiomegaly / Q000401:mortality / Q000503:physiopathology / Q000628:therapy; D003422:Critical Care; D005260:Female; D005330:Fetofetal Transfusion / Q000401:mortality / Q000503:physiopathology* / Q000628:therapy; D005865:Gestational Age; D006352:Heart Ventricles / Q000503:physiopathology; D006452:Hemoglobinometry; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D011247:Pregnancy; D015996:Survival Rate
D000804:Angiotensin II