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KMID : 0361720070180030240
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Korean Journal of perinatology
2007 Volume.18 No. 3 p.240 ~ p.244
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Prognosis of Threatened Abortion according to Embryonic Heart Rate
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Hwang Sung-Jin
Kwon Ji-Young
Park In-Yang
Kim Chan-Joo
Shin Jong-Chul
Kim Chang-Yee
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Abstract
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Objective: The purpose of our study was to investigate the relationship between prognosis of threatened abortion and embryonic heart rate at diagnosis.
Method: The study group included 86 patients in which a singleton fetus with cardiac activity was initially documented. The study population was divided into successful pregnancy group (73 cases, pregnancy was maintained above 20 weeks of gestation) and spontaneous abortion group (13 cases). We compared the embryonic heart rate, age of mother, gestational age at diagnosis between two groups.
Results: A significant difference of embryonic heart rate was noted between the successful group and the spontaneous abortion group (153.1+/-22.9 vs 134.6+/-18.8 beats/min, p=0.0076). There was no statistical difference in the gestational age at diagnosis (8.0+/-1.9 vs 7.5+/-1.9 weeks), the age of mother, and primi para proportion.
Conclusions: The prognosis of threatened abortion was related to the embryonic heart rate. Embryos with slow heart rates had a greater risk of spontaneous abortion. All cases with slow embryonic heart rate (<110 beats/min) had occurred spontaneous abortion. Therefore, these case were needed more information and aggressive treatment.
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KEYWORD
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Threatened abortion, Embryonic heart rate, Prognosis of threatened abortion
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