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| The value of corpus luteum blood flow analysis for predicting abortive ectopic pregnancy |
| Yongkang Maternal and Child Health Care Hospital, Zhejiang Province, 321300 |
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Abstract Objective: To investigate the value of corpus luteum blood flow analysis for predicting abortive ectopic pregnancy. Methods: From April 2015 to January 2018, 137 women with ectopic pregnancy were divided into 2 groups according to the pregnancy status, which included in group A (39 women with the abortive ectopic pregnancy) and group B (67 women with the embryo viable ectopic pregnancy), and another 70 health pregnant women were in group C. The artery resistance index (RI), systolic peak flow velocity (SPV), and the luteal pattern of flow of all women by ultrasound detection were recorded and compared among the three groups. ROC was used to analyze the value of RI and SPV for predicting abortive ectopic pregnancy. Results: The semicircular and annular blood flow signals of women were found in group C, the semi-annular and annular blood flow signals of women were observed in group B, but the corpus luteum of women were not observed clearly and the blood flow in the periphery of women were not obvious in group A. There were no significant difference in ovarian corpus luteum flow distribution and values of RI and SPV of women between group B and group C (P>0.05). The rate of distribution of spot and semicircular, and no obvious blood flow of women in group A was significant different from those of women in group B and group C (P<0.05), the value RI was significant lower and the value of SPV was significant higher (P<0.05). As for predicting abortive ectopic pregnancy, the AUC, cutoff value, sensitivity and specificity of RI value were 0.931, 0.65, 86.9%, and 94.2%, respectively, and those of SPV value were 0.911 cms1, 32.19, 82.1%, and 90.7%, respectively. Conclusion: The RI and SPV as corpus luteum blood flow parameters for predicting abortive ectopic pregnancy has some clinical value.
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