Engelbrecht S, Candrlić C, Vilović-Kos J
Jugosl Ginekol Opstet. 1979 Sep-Dec;19(5-6):275-84.
In two groups, with 50 pregnant women each, changes in the third stage of labour were followed up by a real-time scanner. In the experimental group the umbilical cord on the mother's side as not tied up, while in the control external uterine wall to the chorionic line in the separated placenta immediately before a cord traction intervention amounted to 5.45 cm, while in the control group, under the same conditions, it amounted to 8.61 cm and was caused by the intensified development of the retroplacental hematoma. The difference was statistically significant (P < 0.001). In the way presented, along with the shortening of the third stage of labour, the authors prevent the development of anemia in parturients.
在两组各50名孕妇中，通过实时扫描仪对第三产程的变化进行了随访。实验组中，母亲一侧的脐带未结扎，而在对照组中，在进行脐带牵引干预前，分离胎盘处从子宫外壁到绒毛膜线的距离为5.45厘米，而在对照组中，在相同条件下该距离为8.61厘米，这是由胎盘后血肿的加剧发展导致的。差异具有统计学意义（P<0.001）。通过上述方式，随着第三产程的缩短，作者们部分地预防了产妇贫血的发生。
