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| Application of tissue Doppler Tei index in the evaluation of fetal left ventricular function in pregnancy-induced hypertension |
| LI Tian-gang, WANG Yi-xuan, CAO Shu-na, WANG Jian, YANG Lei, YUE Zhi-cheng, MA Bin |
| Department of Ultrasound Diagnosis, Gansu Provincial Maternity and Child-care Hospital, Lanzhou 730050, China |
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Abstract Objective: To evaluate fetal left ventricular function in patients with pregnancy-induced hypertension by using the tissue Doppler Tei index. Methods: One hundred and thirty pregnant women with hypertension were enrolled, including 84 cases of mild preeclampsia and 46 cases of severe preeclampsia. One hundred and thirty pregnant women with matching gestational age were selected as the control group. Tissue Doppler parameters were measured including isovolumetric time(ICT), isovolumetric relaxation time(IRT) and ejection time(ET), and the Tei index was calculated. Both fetal umbilical arteries spectrum and pregnant women’s uterine arteries spectrum were acquired. Results: There was no significant difference in the Tei index between the mild preeclampsia group and the the control group(P>0.05). There was significant difference in Tei index between severe preeclampsia group and control group and mild preeclampsia group(P<0.05). There was significant difference in the incidence of umbilical artery abnormalities beweeen mild preeclampsia group and severe preeclampsia group(χ2=11.33, P<0.01). There was significant difference in the incidence of early diastolic notch of uterine arteries in pregnant women between mild and severe preeclampsia groups(χ2=8.20, P<0.01). Conclusion: By measuring the tissue Doppler Tei index of fetal left ventricular during pregnancy-induced hypertension, the fetal left ventricular function can be estimated, which can provide clinical diagnosis and treatment basis.
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Received: 10 January 2020
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