Fetal haematology in rhesus isoimmunisation.Br Med J (Clin Res Ed) 1985; 290 doi: https://doi.org/10.1136/bmj.290.6469.661 (Published 02 March 1985) Cite this as: Br Med J (Clin Res Ed) 1985;290:661
- K H Nicolaides,
- C H Rodeck,
- D S Millar,
- R S Mibashan
Haematological studies were carried out in pure fetal blood samples obtained fetoscopically in 29 rhesus isoimmunised pregnancies at 18-24 weeks' gestation, and the values were compared with those obtained in 62 normal control pregnancies. Fetal reticulocytosis or erythroblastaemia was seen only in association with a haemoglobin concentration of 4 g/dl or less. Ten of the 14 fetuses with a haemoglobin concentration below 4 g/dl showed ultrasonographic evidence of hydrops.