n South African Journal of Obstetrics and Gynaecology - Limitations of middle cerebral artery peak systolic velocity in the detection of severe anaemia : a case report
|Article Title||Limitations of middle cerebral artery peak systolic velocity in the detection of severe anaemia : a case report|
|© Publisher:||Health and Medical Publishing Group (HMPG)|
|Journal||South African Journal of Obstetrics and Gynaecology|
|Affiliations||1 Tygerberg Hospital, 2 Tygerberg Hospital, 3 Tygerberg Hospital, 4 Stellenbosch University, 5 Stellenbosch University, 6 Stellenbosch University, 7 Stellenbosch University, 8 National Health Laboratory Service and 9 National Health Laboratory Service|
|Publication Date||Jan 2015|
|Pages||44 - 45|
Doppler examination of the fetal middle cerebral artery (MCA) is considered highly reliable in detecting severe fetal anaemia. We present a case of a mother with severe pre-eclampsia at 32 weeks' gestation and non-immune fetal hydrops without obvious cause. Since the MCA peak systolic velocity (PSV) was normal, severe anaemia was not considered as a possible cause, but after delivery the infant was found to be severely anaemic and died. Histological examination of the placenta revealed multiple extensive haemorrhages (subchorionic, intraparenchymal and intravillous), and autopsy indicated that the most likely cause of death was severe anaemia and hypoxia due to multiple and extensive placental haemorrhages, which had developed over the course of several days. We postulate that the MCA PSV failed to indicate severe anaemia because of the combination of subacute anaemia with severe profound hypoxia due to placental insufficiency.
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