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Sequential sonographic features in neonatal renal vein thrombosis
- Department of Neonatology, Medical University of Warsaw, Warsaw, Poland
- Students Scientific Group affiliated to Department of Neonatology, Medical University of Warsaw, Zwirki i Wigury 63, 02-091 Warsaw, Poland
- Neonatal and Intensive Care Department, Medical University of Warsaw, Karowa 2, 00-315 Warsaw, Poland
open access
Abstract
Objectives: Renal vein thrombosis in newborns is a rare but serious and acute disease. Clinical representations of RVT can vary from discrete symptoms to life-threatening conditions. Therefore imaging, and in particular sonography, plays an important role in the diagnosis of RVT in neonates. Gray-scale, color and spectral/power Doppler ultrasound are all used in the diagnosis of RVT.
Material and methods: We present retrospective sequential ultrasonic imaging of three patients (two term and one preterm infant) with findings characteristic of RVT.
Results: Initial ultrasound diagnostic features include: renal enlargement, echogenic medullary streaks, lack of the flow pattern characteristic of arcuate vessels and subsequently loss of corticomedullary differentiation, reduced echogenicity around pyramids and echogenic band at the extreme apex of the pyramid. Higher resistance index or less pulsatile venous flow on the affected kidney are helpful Doppler signs.
Conclusions: Knowledge and identification of specific features of each phase of the evolution of RTV seems essential to prompt diagnosis. We would like to highlight the evolution of specific sonographic features in each subsequent phase of RVT.
Abstract
Objectives: Renal vein thrombosis in newborns is a rare but serious and acute disease. Clinical representations of RVT can vary from discrete symptoms to life-threatening conditions. Therefore imaging, and in particular sonography, plays an important role in the diagnosis of RVT in neonates. Gray-scale, color and spectral/power Doppler ultrasound are all used in the diagnosis of RVT.
Material and methods: We present retrospective sequential ultrasonic imaging of three patients (two term and one preterm infant) with findings characteristic of RVT.
Results: Initial ultrasound diagnostic features include: renal enlargement, echogenic medullary streaks, lack of the flow pattern characteristic of arcuate vessels and subsequently loss of corticomedullary differentiation, reduced echogenicity around pyramids and echogenic band at the extreme apex of the pyramid. Higher resistance index or less pulsatile venous flow on the affected kidney are helpful Doppler signs.
Conclusions: Knowledge and identification of specific features of each phase of the evolution of RTV seems essential to prompt diagnosis. We would like to highlight the evolution of specific sonographic features in each subsequent phase of RVT.
Keywords
neonate, renal vein thrombosis, ultrasound, Doppler imaging
Title
Sequential sonographic features in neonatal renal vein thrombosis
Journal
Issue
Article type
Research paper
Pages
271-275
Published online
2018-05-30
Page views
1697
Article views/downloads
1641
DOI
Pubmed
Bibliographic record
Ginekol Pol 2018;89(5):271-275.
Keywords
neonate
renal vein thrombosis
ultrasound
Doppler imaging
Authors
Aleksandra Mikołajczak
Anna Tytkowska
Agata Jaworska
Alicja Wesołowska
Maria Katarzyna Borszewska-Kornacka
Renata Bokiniec
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