孕37周后正常胎儿脐血流与胎儿脐带绕颈脐血流的对比超声研究

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Abstract Objective To explore the clinical value of ultrasonography in diagnosing umbilical blood flow around neck and umbilicus of fetus after 37 weeks of pregnancy. Methods From March 2017 to March 2019, 30 pregnant women with umbilical cord around the neck after 37 weeks of pregnancy were selected as the observation group, 30 cases of normal pregnant women after 37 weeks of gestation in the same period were selected as the control group. The clinical data of the patients were analyzed retrospectively.All the patients were examined by umbilical cord blood flow ultrasound.The pulsation index(PI),resistance index(RI),the ratio of fetal umbilical artery systolic blood pressure and diastolic blood pressure (S/D) were measured. The results of ultrasound diagnosis of fetal umbilical cord around the neck were analyzed. Results The PI, RI and S/D in the observation group were higher than those in the control group, with statistically significant differences (P＜0.05). The sensitivity, specificity, accuracy, missed diagnosis rate and misdiagnosis rate of fetal umbilical cord around the neck were 96.67%, 93.33%, 95.00%, 3.33% and 6.67% respectively. Conclusion The RI, PI, S/D of umbilical cord blood flow around the neck of the fetus after 37 weeks of gestation are higher than those of the normal fetus. According to the results of ultrasonic examination of umbilical cord blood flow, the umbilical cord blood flow around the neck of the fetus can be effectively identified, which has important clinical application value.

Key words： 37 weeks gestation Umbilical cord blood flow Umbilical cord around neck Ultrasound

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	Articles by authors
	LUO Ling
	LAI Gan-ping
	SHI Li-li
	XIAO Xiao-fang

Cite this article:

LUO Ling,LAI Gan-ping,SHI Li-li, et al. Comparative ultrasound study of normal fetal umbilical blood flow and fetal umbilical blood flow around the neck after 37 weeks of gestation[J]. 中国当代医药, 2020, 27(16): 168-170.

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http://dangdaiyiyao.com/EN/ OR http://dangdaiyiyao.com/EN/Y2020/V27/I16/168

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