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| The feature analysis of obstetric hemorrhage on etiological diagnosis by prenatal ultrasound during the third trimester of pregnancy |
| Jiaozuo Maternal and Child Health Care Hospital, Henan Province, 454000 |
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Abstract To investigate the image feature of prenatal ultrasound diagnosis for obstetric hemorrhage of pregnant women during the third trimester of pregnancy. Methods: The clinical data of 84 pregnant women with suspected obstetric hemorrhage during the third trimester of pregnancy from December 2018 to December 2019 were collected retrospectively. All these pregnant women had received prenatal ultrasound examination, and the surgical pathological diagnosis result was used as the gold standard to analyze the image feature and efficacy of prenatal ultrasound diagnosis. Results: 78 (95.1%) women of the 84 pregnant women had obstetric hemorrhage during the third trimester of pregnancy, which included 49 cases with placenta previa, 17 cases with placental abruption, 10 cases with rupture of blood sinus at the edge of placenta, and 2 cases with placenta implantation. The sensitivity, the specificity, and the accuracy of ultrasonic diagnosis were 97.4%, 66.7%, and 95.2%, respectively. Prenatal ultrasound examination had the higher diagnostic accuracy for different type of obstetric hemorrhage, which’s rate of missed diagnosis and misdiagnosis were 1.3%. Conclusion: Prenatal ultrasound diagnosis for pregnant women with obstetric hemorrhage during the third trimester of pregnancy can accurately identify the cause of bleeding, which’s accuracy and sensitivity are high, so it can provide effective references for the targeted implementation of clinical treatment.
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