Jelin Angie C, Kuppermann Miriam, Erickson Kristine, Clyman Ronald, Schulkin Jay
Department of Obstetrics, Gynecology and Reproductive Sciences, University of California , San Francisco, CA , USA .
J Matern Fetal Neonatal Med. 2014 Sep;27(14):1457-61. doi: 10.3109/14767058.2013.864275. Epub 2013 Dec 12.
Although delayed umbilical cord clamping has been demonstrated to reduce the incidence of intraventricular hemorrhage and neonatal sepsis, and decrease the need for neonatal transfusions (without affecting cord pH, Apgar scores or the need for phototherapy), the extent to which this practice is being employed is unknown. We conducted a survey of US obstetricians to assess their attitudes and beliefs about cord clamping.
Questionnaires were randomly mailed to members of the American College of Obstetricians and Gynecologists (ACOG), and the Collaborative Ambulatory Research Network (CARN). The data were analyzed using Chi-square and Student t tests.
The response rates for the CARN and other ACOG members were 47% and 21%, respectively. Most (88%) responders reported their hospital had no umbilical cord clamping policy. The most frequent response for optimal timing of umbilical cord clamping, regardless of gestational age, was "don't know". Potential for neonatal red blood cell transfusion was the only concern cited as a reason for being somewhat or very inclined to delay umbilical cord clamping (51%). Delayed neonatal resuscitation (76%) was listed as a reason to clamp the cord immediately, despite the paucity of literature to support immediate cord clamping in this cohort.
Despite substantial evidence supporting the practice of delayed cord clamping, few institutions have policies regarding this practice. Moreover, obstetricians' beliefs about the appropriate timing for umbilical cord clamping are not consistent with the evidence that demonstrates its beneficial impact on neonatal outcomes.
尽管已证实延迟脐带结扎可降低脑室内出血和新生儿败血症的发生率,并减少新生儿输血的需求(且不影响脐带血pH值、阿氏评分或光疗需求),但这种做法的应用程度尚不清楚。我们对美国产科医生进行了一项调查,以评估他们对脐带结扎的态度和看法。
问卷随机邮寄给美国妇产科医师学会(ACOG)和协作门诊研究网络(CARN)的成员。使用卡方检验和学生t检验对数据进行分析。
CARN和其他ACOG成员的回复率分别为47%和21%。大多数(88%)回复者报告其所在医院没有脐带结扎政策。无论孕周如何,脐带结扎最佳时机最常见的回答是“不知道”。新生儿红细胞输血的可能性是被提及的、在某种程度上或非常倾向于延迟脐带结扎的唯一原因(51%)。尽管缺乏支持在这一群体中立即结扎脐带的文献,但延迟新生儿复苏(76%)被列为立即结扎脐带的一个原因。
尽管有大量证据支持延迟脐带结扎的做法,但很少有机构制定关于这种做法的政策。此外,产科医生对脐带结扎适当时间的看法与表明其对新生儿结局有有益影响的证据不一致。