MacGregor S N, Silver R K, Sholl J S
Department of Obstetrics and Gynecology, Northwestern University Medical School, Evanston Hospital, IL.
Am J Obstet Gynecol. 1991 Aug;165(2):382-3. doi: 10.1016/0002-9378(91)90098-c.
It has been suggested that the optical density at 450 nm may be an unreliable predictor of the severity of fetal anemia in the midtrimester of pregnancy; therefore fetal blood sampling, rather than amniotic fluid evaluation, should be performed in all isoimmunized pregnancies with elevated maternal antibody titers in the midtrimester. Potential complications of such an approach are discussed and an alternative plan of management is offered.
有人提出，450nm处的光密度可能不是孕中期胎儿贫血严重程度的可靠预测指标；因此，对于所有孕中期母体抗体效价升高的血型不合妊娠，应进行胎儿采血而非羊水评估。本文讨论了这种方法的潜在并发症，并提供了另一种管理方案。
