Renal Interlobar Vein Impedance Index as a First-Trimester Marker Does Not Predict Hypertensive Disorders of Pregnancy

Renal Interlobar Vein Impedance Index as a First-Trimester Marker Does Not Predict Hypertensive Disorders of Pregnancy

Author Maia e Holanda Moura, Sammya Bezerra Google Scholar
Praciano, Paulo Cesar Google Scholar
Gurgel Alves, Julio Augusto Google Scholar
Martins, Wellington P. Google Scholar
Araujo Junior, Edward Autor UNIFESP Google Scholar
Kane, Stefan C. Google Scholar
Costa, Fabricio da Silva Google Scholar
Abstract Objectives-The purpose of this study was to examine whether the maternal renal interlobar vein impedance index as assessed by first-trimester sonography is able to predict the later development of hypertensive disorders of pregnancy. Methods-Venous Doppler parameters of both maternal kidneys were studied in 214 pregnant women at gestational ages of 11 weeks to 13 weeks 6 days. Patients were classified according to outcomes related to hypertensive disorders. Detection rates and areas under receiver operating characteristic curves were determined for the maternal renal interlobar vein impedance index as a first-trimester predictor of preeclampsia and gestational hypertension. Results-Among the 214 patients, 22 (10.3%) developed preeclampsia

10 (4.7%) developed gestational hypertension

and 182 were unaffected by hypertensive disorders (controls

85.0%). In the overall study population, there was no difference in the impedance index between the right (0.44

95% confidence interval, 0.35-0.50) and left (0.43

95% confidence interval, 0.35-0.53) sides (P=.86). The average impedance index did not differ among women destined to develop preeclampsia (0.46

95% confidence interval, 0.38-0.57), gestational hypertension (0.39

95% confidence interval, 0.33-0.46), or pregnancies uncomplicated by hypertensive disease (0.42

95% confidence interval, 0.37-0.50

P=.15). Low detection rates and the area under the curve analysis demonstrated that the impedance index was not predictive of hypertensive disorders of pregnancy. Conclusions-The maternal renal interlobar vein impedance index should not be considered a first-trimester marker of hypertensive disorders of pregnancy.
Keywords Doppler sonography
hypertension
obstetric ultrasound
preeclampsia
renal venous circulation
xmlui.dri2xhtml.METS-1.0.item-coverage Laurel
Language English
Date 2016
Published in Journal Of Ultrasound In Medicine. Laurel, v. 35, n. 12, p. 2641-2648, 2016.
ISSN 0278-4297 (Sherpa/Romeo, impact factor)
Publisher Amer Inst Ultrasound Medicine
Extent 2641-2648
Origin http://dx.doi.org/10.7863/ultra.15.11002
Access rights Open access Open Access
Type Article
Web of Science ID WOS:000389054600013
URI https://repositorio.unifesp.br/handle/11600/56662

Show full item record




File

File Size Format View

There are no files associated with this item.

This item appears in the following Collection(s)

Search


Browse

Statistics

My Account