The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians · 2012
The effect of fetal anemia on fetal cardiac troponin T in pregnancies complicated by RhD alloimmunization.
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Nomura Roseli Mieko Yamamoto, Brizot Maria de Lourdes, Liao Adolfo Wenjaw, Nishie Estela Naomi, Zugaib Marcelo
Аннотация
OBJECTIVE: To study the effect of fetal anemia on fetal cardiac troponin T (cTnT) in pregnancies complicated by RhD alloimmunization.
METHOD: Twenty pregnant women complicated by RhD alloimmunization who underwent intrauterine transfusion (IUT) for treatment of fetal anemia were studied. Immediately before IUT, fetal blood was obtained for hemoglobin and cTnT measurements.
RESULTS: Complete measurements of hemoglobin and cTnT before IUT were obtained in 49 procedures, of which 20 were first-time. The regression analysis between hemoglobin z-score and cTnT values in 49 procedures showed significant negative correlation (r = -0.43, p = 0.002, Regression equation Log(cTnT) = -1.5057 + -0.07563 Hb z-score). Cardiac TnT values before first IUT were significantly associated with perinatal death. In the group with elevated cTnT (n = 7), fetal or neonatal death was more frequent (2 IUD and 2 NND) when compared to normal cTnT group (n = 13, 1 IUD) (57.1 vs. 7.7%, p = 0.031, Fisher's exact test).
CONCLUSION: Fetal blood concentration of cTnT before IUT was negatively correlated to hemoglobin z-score, and levels of cTnT help to manage the pregnancies complicated by RhD alloimmunization.
METHOD: Twenty pregnant women complicated by RhD alloimmunization who underwent intrauterine transfusion (IUT) for treatment of fetal anemia were studied. Immediately before IUT, fetal blood was obtained for hemoglobin and cTnT measurements.
RESULTS: Complete measurements of hemoglobin and cTnT before IUT were obtained in 49 procedures, of which 20 were first-time. The regression analysis between hemoglobin z-score and cTnT values in 49 procedures showed significant negative correlation (r = -0.43, p = 0.002, Regression equation Log(cTnT) = -1.5057 + -0.07563 Hb z-score). Cardiac TnT values before first IUT were significantly associated with perinatal death. In the group with elevated cTnT (n = 7), fetal or neonatal death was more frequent (2 IUD and 2 NND) when compared to normal cTnT group (n = 13, 1 IUD) (57.1 vs. 7.7%, p = 0.031, Fisher's exact test).
CONCLUSION: Fetal blood concentration of cTnT before IUT was negatively correlated to hemoglobin z-score, and levels of cTnT help to manage the pregnancies complicated by RhD alloimmunization.