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Ultrasonographic study and Doppler flow velocimetry of maternal kidneys and liver in low-risk pregnancy.

Daher CH, Gomes AC, Kobayashi S, Cerri GG, Chammas MC - Radiol Bras (2015 May-Jun)

Bottom Line: The waveform pattern of the right hepatic vein presented changes persisting in the postpartum period in 31.8% of the patients.Cholelithiasis was observed in 18.1% of the patients.Abstract available from the publisher.

View Article: PubMed Central - PubMed

Affiliation: MD, Researcher at Instituto de Radiologia do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo (InRad/HC-FMUSP), São Paulo, SP, Brazil.

ABSTRACT

Objective: Longitudinal study with B-mode ultrasonography and Doppler ultrasonography of maternal kidneys and liver in low-risk pregnancy, to establish and quantify normality parameters, correlating them with physiological changes.

Materials and methods: Twenty-five pregnant women were assessed and selected to participate in the study, each of them undergoing four examinations at the first, second, third trimesters and postpartum.

Results: Findings during pregnancy were the following: increased renal volume, pyelocaliceal dilatation with incidence of 45.4% in the right kidney, and 9% in the left kidney; nephrolithiasis, 18.1% in the right kidney, 13.6% in the left kidney. With pyelocaliceal dilatation, mean values for resistivity index were: 0.68 for renal arteries; 0.66 for segmental arteries; 0.64 for interlobar arteries; 0.64 for arcuate arteries. Without pyelocaliceal dilatation, 0.67 for renal arteries; 0.64 for segmental arteries; 0.63 for interlobar arteries; and 0.61 for arcuate arteries. Portal vein flow velocities presented higher values in pregnancy, with mean value for maximum velocity of 28.9 cm/s, and 22.6 cm/s postpartum. The waveform pattern of the right hepatic vein presented changes persisting in the postpartum period in 31.8% of the patients. Cholelithiasis was observed in 18.1% of the patients.

Conclusion: Alterations in renal volume, pyelocaliceal dilatation, nephrolithiasis, cholelithiasis, changes in portal vein flow velocity, alterations in waveform pattern of the right hepatic vein, proved to be significant.

No MeSH data available.


Related in: MedlinePlus

Right and left renal volume.
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f01: Right and left renal volume.

Mentions: The renal volume presented changes as the pregnancies developed, with a progressiverenal volume increase up to the third gestational trimester and volume decrease inthe postpartum period. Such changes were statistically significant (Figure 1).


Ultrasonographic study and Doppler flow velocimetry of maternal kidneys and liver in low-risk pregnancy.

Daher CH, Gomes AC, Kobayashi S, Cerri GG, Chammas MC - Radiol Bras (2015 May-Jun)

Right and left renal volume.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4492564&req=5

f01: Right and left renal volume.
Mentions: The renal volume presented changes as the pregnancies developed, with a progressiverenal volume increase up to the third gestational trimester and volume decrease inthe postpartum period. Such changes were statistically significant (Figure 1).

Bottom Line: The waveform pattern of the right hepatic vein presented changes persisting in the postpartum period in 31.8% of the patients.Cholelithiasis was observed in 18.1% of the patients.Abstract available from the publisher.

View Article: PubMed Central - PubMed

Affiliation: MD, Researcher at Instituto de Radiologia do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo (InRad/HC-FMUSP), São Paulo, SP, Brazil.

ABSTRACT

Objective: Longitudinal study with B-mode ultrasonography and Doppler ultrasonography of maternal kidneys and liver in low-risk pregnancy, to establish and quantify normality parameters, correlating them with physiological changes.

Materials and methods: Twenty-five pregnant women were assessed and selected to participate in the study, each of them undergoing four examinations at the first, second, third trimesters and postpartum.

Results: Findings during pregnancy were the following: increased renal volume, pyelocaliceal dilatation with incidence of 45.4% in the right kidney, and 9% in the left kidney; nephrolithiasis, 18.1% in the right kidney, 13.6% in the left kidney. With pyelocaliceal dilatation, mean values for resistivity index were: 0.68 for renal arteries; 0.66 for segmental arteries; 0.64 for interlobar arteries; 0.64 for arcuate arteries. Without pyelocaliceal dilatation, 0.67 for renal arteries; 0.64 for segmental arteries; 0.63 for interlobar arteries; and 0.61 for arcuate arteries. Portal vein flow velocities presented higher values in pregnancy, with mean value for maximum velocity of 28.9 cm/s, and 22.6 cm/s postpartum. The waveform pattern of the right hepatic vein presented changes persisting in the postpartum period in 31.8% of the patients. Cholelithiasis was observed in 18.1% of the patients.

Conclusion: Alterations in renal volume, pyelocaliceal dilatation, nephrolithiasis, cholelithiasis, changes in portal vein flow velocity, alterations in waveform pattern of the right hepatic vein, proved to be significant.

No MeSH data available.


Related in: MedlinePlus