Non-stress test combined with ultrasonic measurement for prediction of intrauterine fetal anoxia

doi:10.3877/cma.j.issn.1672-6448.2019.04.010

Abstract

Abstract:

Objective

To observe the predictive effect of the non-stress test (NST) combined with ultrasonic measurement for intrauterine fetal anoxia to optimize its diagnosis.

Methods

Two hundred and ten pregnant women in the late pregnancy who underwent color Doppler ultrasound examination and had a delivery at hospital were selected. Of all women included, 65 had a prelabor preliminary diagnosis and postpartum confirmation of intrauterine anoxic fetus (observation group), and the remaining 145 had a normal pregnancy (control group). All subjects underwent NST and ultrasonic measurement.

Results

The rate fetal heart monitoring abnormality was significantly higher in the observation group (58/65, 87.93%) than in the control group (20/145, 13.79%) (χ²=214.925, P<0.001). Compared with the control group, systolic/diastolic ratio (S/D), resistance index (RI), and pulsatility index (PI) of the middle cerebral artery (MCA) all decreased significantly, and S/D, RI, and PI of the umbilical artery (UA) and MCA/UA all increased significantly (t=8.91, 10.23, 8.46, 5.20, 4.66, 16.57, 10.99, 14.71, and 13.87, respectively, P<0.001 for all). When combining different indexes, both the sensitivity and Youden index increased.

Conclusion

NST combined with ultrasonic measurement can better predict intrauterine fetal anoxia and has better application value.

Key words: Fetal hypoxia, Intrauterine anoxia, Ultrasonography, Doppler, Color, Prediction

Guoying Zheng, Xiaoqing Zhu. Non-stress test combined with ultrasonic measurement for prediction of intrauterine fetal anoxia[J]. Chinese Journal of Medical Ultrasound (Electronic Edition), 2019, 16(04): 288-292.

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URL: https://chaosheng.cma-cmc.com.cn/EN/10.3877/cma.j.issn.1672-6448.2019.04.010

https://chaosheng.cma-cmc.com.cn/EN/Y2019/V16/I04/288

Figures/Tables 4

References 15

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诊断	AUC	P值	敏感度（%）	特异度（%）	Youden指数
（S/D）MCA/（S/D）UA	0.861	<0.001	81.2	86.1	0.673
RIMCA/RIUA	0.868	<0.001	75.2	99.2	0.744
PIMCA/PIUA	0.824	<0.001	80.5	81.8	0.623
胎心监护	0.875	<0.001	88.4	86.5	0.749
联合诊断	0.885	<0.001	95.6	80.8	0.764

诊断	AUC	P值	敏感度（%）	特异度（%）	Youden指数
（S/D）MCA/（S/D）UA	0.861	<0.001	81.2	86.1	0.673
RIMCA/RIUA	0.868	<0.001	75.2	99.2	0.744
PIMCA/PIUA	0.824	<0.001	80.5	81.8	0.623
胎心监护	0.875	<0.001	88.4	86.5	0.749
联合诊断	0.885	<0.001	95.6	80.8	0.764

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