Pedagogical thoughts on the term "Küstner–Chukalov's sign of placental separation"
https://doi.org/10.17749/2313-7347/ob.gyn.rep.2025.685
Abstract
During physiological (normal) childbirth, the third (placental) period of labor is the most crucial for the mother. The placenta becomes separated by natural forces (uterine contractions) and the placenta is released (born) by the mother's efforts. If the latter is ineffective, the placenta is removed from the uterus artificially, using special methods. The duration of the placental period is determined within 15–30 minutes. During this period of time, signs of placental separation are carefully monitored and, if they appear, the placenta is removed from the birth canal. Among the well-known relevant signs, one is named after the authors – the Küstner–Chukalov’s sign. While delivering student classes, attention was drawn to the different spellings of this sign both in obstetrics textbooks and in special publications. This article studies primary sources in order to unify the name of the "Küstner–Chukalov’s" sign of placental separation.
Supporting agencies: The authors declare no funding
About the Authors
L. A. Kozlov
Kazan State Medical University, Ministry of Health of the Russian Federation
Russian Federation
Russian Federation
Lev A. Kozlov - MD, Dr Sci Med, Prof.
49 Butlerova Str., Kazan 420012
K. A. Chikmareva
Kazan State Medical University, Ministry of Health of the Russian Federation
Russian Federation
Russian Federation
Ksenia A. Chikmareva - MD.
49 Butlerova Str., Kazan 420012
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Review
For citations:
Kozlov L.A., Chikmareva K.A. Pedagogical thoughts on the term "Küstner–Chukalov's sign of placental separation". Obstetrics, Gynecology and Reproduction. 2025;19(5):812-817. (In Russ.) https://doi.org/10.17749/2313-7347/ob.gyn.rep.2025.685
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