The sensitized Rh-negative woman does not present the only hemolytic crisis in obstetrics, a Philadelphia hematologist reminded colleagues at the American Medical Association Clinical Convention.
Within recent months, prenatal blood typing and serum screening have uncovered several potential problems among Rh-positive cases, said Lyndall Molthan, MD, director of the blood bank and transfusion service, Temple University Medical Center.
A group-O woman who had antibodies which took one year to identify and who has only two compatible donors in the world.
Another group-O who had experienced nine pregnancies ending in stillbirths or neonatal deaths. Her husband is the only known adult with a rare, antigenic blood type ( Good-positive).
Yet another woman who had developed anti-Yta antibodies, prob ably from a 1949 transfusion. She is the tenth such patient known, and there are no known donors.
"Every prenatal patient must be considered as a future blood recipient;