Shepherd A J, Richardson C J, Brown J P
Am J Dis Child. 1985 Jan;139(1):71-3. doi: 10.1001/archpedi.1985.02140030073033.
Nuchal cord was documented in 437 neonates consecutively admitted to the newborn nursery at The University of Texas Medical Branch Hospital, Galveston. The prevalence of anemia in the nuchal cord group (venous hemoglobin level of less than 13.2 g/dL or hematocrit of less than 39.2%) was compared with that in a control group. None of the controls was anemic. Five of 27 neonates with tight nuchal cord and four of 30 with loose nuchal cord were anemic. Anemia in the tight nuchal cord group was usually observed early, and in three infants was manifest by hypotension, necessitating transfusion. Anemia associated with loose nuchal cord occurred later and was asymptomatic. This study emphasizes the increased risk of anemia associated with nuchal cord and demonstrates the need for hemoglobin and hematocrit determinations in neonates with this obstetrical complication.
德克萨斯大学医学分校加尔维斯顿医院新生儿病房连续收治的437例新生儿记录有脐带绕颈情况。将脐带绕颈组（静脉血红蛋白水平低于13.2 g/dL或血细胞比容低于39.2%）的贫血患病率与对照组进行比较。对照组中无一例贫血。27例脐带绕颈紧的新生儿中有5例贫血，30例脐带绕颈松的新生儿中有4例贫血。脐带绕颈紧组的贫血通常在早期出现，3例婴儿表现为低血压，需要输血。与脐带绕颈松相关的贫血出现较晚且无症状。本研究强调了脐带绕颈相关贫血风险增加，并表明对于有这种产科并发症的新生儿需要测定血红蛋白和血细胞比容。
