Brandão AHF, Evangelista AA, Martins RMF, Leite HV, Cabral ACV. Prediction of early and late preeclampsia by flow-mediated dilation of the brachial artery.
Radiol Bras 2015;
47:206-9. [PMID:
25741086 PMCID:
PMC4337122 DOI:
10.1590/0100-3984.2013.1894]
[Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2013] [Accepted: 03/10/2014] [Indexed: 11/30/2022] Open
Abstract
Objective
To assess the accuracy in the prediction of both early and late preeclampsia by
flow-mediated dilation of the brachial artery (FMD), a biophysical marker for
endothelial dysfunction.
Materials and Methods
A total of 91 patients, considered at high risk for development of preeclampsia
were submitted to brachial artery FMD between 24 and 28 weeks of gestation.
Results
Nineteen out of the selected patients developed preeclampsia, 8 in its early form
and 11 in the late form. With a cut-off value of 6.5%, the FMD sensitivity for
early preeclampsia prediction was 75.0%, with specificity of 73.3%, positive
predictive value (PPV) of 32.4% and negative predictive value (NPV) of 91.9%. For
the prediction of late preeclampsia, sensitivity = 83.3%, specificity = 73.2%, PPV
= 34.4% and NPV = 96.2% were observed. And for the prediction of all associated
forms of preeclampsia, sensitivity = 84.2%, specificity = 73.6%, PPV = 45.7% and
NPV = 94.6% were observed.
Conclusion
FMD of the brachial artery is a test with good accuracy in the prediction of both
early and late preeclampsia, which may represent a positive impact on the
follow-up of pregnant women at high risk for developing this syndrome.
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