Characterization of ventricular myocardial performance in the fetus by tissue Doppler imaging

Sayaka Watanabe, Ikuo Hashimoto, Kazuyoshi Saito, Kazuhiro Watanabe, Keiichi Hirono, Keiichiro Uese, Fukiko Ichida, Shigeru Saito, Toshio Miyawaki, Petra Niemann, David J. Sahn

研究成果: Article

42 引用 (Scopus)

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Background: Clinically useful indices of fetal cardiac function have not been fully delineated for tissue Doppler imaging (TDI). Methods and Results: In the present study, 56 pregnancies between the 17th and 38 th weeks of gestation included 38 normal fetuses, 6 cases of hydrops fetalis (HF), and 12 of intrauterine growth retardation (IUGR). Peak velocity in early diastole (E) was measured by pulsed-wave Doppler and the peak annular velocities in systole (Sa) and early diastole (Ea) were measured by TDI. The ratio between flow velocity and annular velocity in early diastole (E/Ea) and the ratio of the Sa of right ventricle to that of the left ventricle (RVSa/LVSa) were estimated. In all fetuses with HF, LVSa was <2 cm/s and LVE/Ea was >13. RVSa/LVSa in the HF group was significantly higher than that in the normal group, and RVSa/LVSa in the IUGR group was significantly lower than that in the normal group. Conclusions: A combination of low LVSa and high LVE/Ea shows reduced global myocardial performance of the LV, and would be one of the useful indices for quantitative assessment in high-risk pregnancies. Changes in the RVSa/LVSa ratio may reflect afterload changes in both ventricles and compensatory cardiovascular mechanisms occurring during the process of placental insufficiency and heart failure.

元の言語English
ページ(範囲)943-947
ページ数5
ジャーナルCirculation Journal
73
発行部数5
DOI
出版物ステータスPublished - 01-05-2009
外部発表Yes

All Science Journal Classification (ASJC) codes

  • Cardiology and Cardiovascular Medicine

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    Watanabe, S., Hashimoto, I., Saito, K., Watanabe, K., Hirono, K., Uese, K., Ichida, F., Saito, S., Miyawaki, T., Niemann, P., & Sahn, D. J. (2009). Characterization of ventricular myocardial performance in the fetus by tissue Doppler imaging. Circulation Journal, 73(5), 943-947. https://doi.org/10.1253/circj.CJ-08-0529