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| Value of the overflow time of contrast agent from fallopian tube umbrella during hysterosalpingography by ultrasonography for predicting the natural pregnancy of infertile patients after treatment |
| The First Affiliated Hospital of Zhejiang University of Traditional Chinese Medicine (Qiantang District Branch of Traditional Chinese Medicine Hospital of Zhejiang), Hangzhou, Zhejiang Province, 322200 |
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Abstract To investigate the effect of the overflow time of contrast agent from fallopian tube umbrella during hysterosalpingography (HyCoSy) by ultrasonography on the natural pregnancy of infertile patients after treatment. Methods: The clinical data of 142 infertile patients who underwent HyCoSy examination by ultrasonography from March 2017 to March 2019 were collected retrospectively. The pelvic diffusion distribution of the contrast agent, circumferential wrapping around the ovary of the contrast agent, and the overflow time of contrast agent from fallopian tube umbrella of these patients were recorded. As 6 cases without overflow of the contrast agent were excluded, the remaining 136 cases were included as the research objects. According to the different overflow time of the contrast agent from fallopian tube umbrella, the patients were divided into group A (80 cases with the overflow time <48s) and group B (56 cases with the overflow time >48s). The patients in both groups were given ovulation induction treatment or guidance of natural pregnancy. After 1 year of followed-up, the situation of the ovulation induction and the natural pregnancy rate of the patients were compared between the two groups. Results: After infertility treatment, the pregnant rate of the patients by ovulation induction or the natural pregnancy rate (83.3%) of the patients in group A was significantly higher than that (73.0%) of the patients in group B. The pregnant rate of the patients by ovulation induction or the natural pregnancy rate (73.0%) of the patients with the contrast agent overflow from bilateral fallopian tube umbrella was significantly higher than that (35.7%) of the patients with the contrast agent overflow from unilateral fallopian tube umbrella. Logistic regression curve analysis showed that the time of the contrast agent overflow from fallopian tube umbrella of the patients was related to their pregnancy by ovulation induction or the natural pregnancy (P<0.05). The receiver operating characteristic curve was drawn, and the area under the curve for predicting the pregnancy was 0.849 (95%CI 0.838-0.922), which had ideal prediction effect. Conclusion: The time of the contrast agent overflow from fallopian tube umbrella of the patients during HyCoSy has certain relation to their pregnancy by ovulation induction or the natural pregnancy. The time of the contrast agent overflow from bilateral fallopian tube umbrella is shorter, the higher pregnancy success rate of patients after infertility treatment is.
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