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KMID : 0381219700020040051
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Journal of RIMSK
1970 Volume.2 No. 4 p.51 ~ p.57
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TWO CASE OF TRUE KNOT OF UMBILICAL CORD
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채유병/Chae, Yoo Byung
정재면/송태섭/위흥선/Chung, Jai Myun/Song, Tai Sup/Wie, Hung Sun
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Abstract
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Two cases of true knots of the umbilical cord were born alive by Cesarean section. Umbilical cord complications have been of practical interest to physicians for years because of their frequent occurrences in the routine obstetric practice, yet there are few comprehensive discussions on the subject. True knots of the umbilical cord are not infrequent and are occasionally of a complicated nature. They are
usually harmless, since they are rarely pulled tight enough in utero to obliterate completely the lumen of the vessels, or to cause the death of the fetus. They usually result from an active movement of -the child According to von Winckel, two conditions are necessary for their formation: a cord which in length exceeds twice the distance from the umbilicus to the vertex, and a small fetus or a large quantity of liquor amnii, in order to ensure mobility of the former. False knots, due to twisting or dilatation of the vessels or accumulation of Wharton´s jelly, are fairly common in occurence, and are readily distinguishable from true knots.
Cases of true knots of the umbilical cord born alive by Cesarean section are believed to be especially rare.
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