Why the study?
Does velocity vector imaging detect differences in regional left ventricular longitudinal function between fetuses with gestational diabetes mellitus and normal fetuses?
Does velocity vector imaging detect differences in regional left ventricular longitudinal function between fetuses with gestational diabetes mellitus and normal fetuses?
Velocity vector imaging can detect early subclinical changes in regional left ventricular longitudinal function in fetuses exposed to gestational diabetes mellitus.
May support velocity vector imaging to detect subclinical fetal LV changes in gestational diabetes mellitus; leaves open prognostic value and need for outcome studies.
OBJECTIVE: The purpose of this study was to investigate the clinical value of velocity vector imaging in the assessment of regional left ventricular longitudinal function in fetuses with gestational diabetes mellitus. METHODS: Digital dynamic four-chamber views of 98 fetuses with gestational diabetes mellitus and 135 normal fetuses were collected and analyzed using velocity vector imaging. The regional tissue velocity, strain, and strain rate of the interventricular septum and left lateral wall were separately measured in systole and diastole. RESULTS: A total of 207 of 233 cases were analyzed successfully. Vs (systolic velocity) and Vd (diastolic velocity) were age-dependent and gradually decreased from the basal segment to the apical segment in the left ventricle (P < 0.05). The Vs after 32(+0) weeks, Vd after 28(+0) weeks, and S (strain), SRs (systolic strain rate), and SRd (diastolic strain rate) after 24(+0) weeks in the left ventricle of fetuses with GDM were obviously lower than the corresponding parameters of normal fetuses (P < 0.05). CONCLUSION: VVI can evaluate the fetal regional left ventricular longitudinal function.
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Wang et al. (2016) studied this question.
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