Food and Nutrition Technical Assistance II Project/FHI Development 360 LLC, Washington, DC 20009-5721, USA.
Nutr Rev. 2011 Nov;69 Suppl 1:S30-6. doi: 10.1111/j.1753-4887.2011.00430.x.
The optimal timing of umbilical cord clamping has been debated in the scientific literature for at least the last century, when cord clamping practices shifted from delayed towards immediate clamping. Recent research provides evidence for the beneficial effect of delayed cord clamping on infant iron status. The present review describes the physiological basis for the impact of cord clamping time on total body iron at birth and the relationship between birth body iron, as affected by cord clamping time, and iron status later in infancy. This research is discussed in the context of current clamping practices, which tend towards early cord clamping in most settings, as well as the high levels of anemia present in young infants in many countries worldwide.
在过去的一个世纪里，科学界一直在争论脐带结扎的最佳时机，当时脐带结扎的做法从延迟转向立即进行。最近的研究为延迟脐带结扎对婴儿铁状况的有益影响提供了证据。本综述描述了脐带结扎时间对出生时总铁量的影响的生理学基础，以及出生时铁量与脐带结扎时间的关系，以及在婴儿后期的铁状况。这一研究是在当前的结扎实践背景下讨论的，目前在大多数情况下，结扎时间往往较早，而且在世界上许多国家，婴儿早期贫血的发生率很高。
