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Updated: Aug 11, 2026

Fetal Echocardiography and Pulsed-wave Doppler Ultrasound in a Rabbit Model of Intrauterine Growth Restriction
Published on: June 29, 2013
Insights
This study highlights fetal ureteric reflux (FUR) in infants with antenatal renal dilatation. Early diagnosis and monitoring are crucial as kidney function may decline over time.
Area of Science:
- Pediatric Nephrology
- Urology
- Neonatal Medicine
Background:
- Antenatal renal dilatation is a common finding in fetal ultrasounds.
- Ureteric reflux, particularly fetal ureteric reflux (FUR), can lead to significant renal complications.
- Early identification and management are critical for preserving renal function in infants.
Purpose of the Study:
- To describe a cohort of infants presenting with ureteric reflux and antenatal renal dilatation.
- To investigate the incidence of parenchymal damage and functional changes in refluxing kidneys.
- To emphasize the importance of postnatal follow-up for infants with antenatal urinary tract abnormalities.
Main Methods:
- Case series describing eight infants with ureteric reflux.
- Radioisotope studies (e.g., renal scans) to assess renal parenchymal damage and function.
- Serial investigations to monitor changes in renal status over time.
Main Results:
- Seven of eight infants had antenatal renal dilatation, with a high probability of fetal ureteric reflux (FUR).
- Radioisotope studies revealed parenchymal damage in 3/7 and reduced function in 4/10 refluxing kidneys.
- Follow-up showed no increase in parenchymal damage, but some kidneys exhibited functional deterioration, possibly due to growth-related factors.
Conclusions:
- Infants with antenatal renal dilatation require thorough postnatal evaluation for ureteric reflux.
- Monitoring renal function is essential as deterioration can occur despite initial findings.
- Detailed postnatal examination is recommended to detect and manage potential complications of fetal ureteric reflux early.
Abstract:
Seven babies (six male, one female) with ureteric reflux, all of whom had antenatal renal dilatation, are described together with one other baby who was found to have gross ureteric reflux when investigated following an acute urinary infection at the age of 9 days. There was a strong probability that all of the babies had fetal ureteric reflux (FUR). Radioisotope studies demonstrated parenchymal damage in three of seven and reduced function in four of 10 refluxing kidneys. Subsequent investigation showed no increase in the areas of parenchymal damage but there was evidence that function in some kidneys had deteriorated. It was thought that this was due to disturbances in inter-renal or renal-child related growth velocities. A plea is put forward for more detailed postnatal examination of babies whose urinary tracts show evidence of dilatation antenatally.
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