Observational studyMedicine2020
Validation of "urinary tract dilation" classification system: Correlation between fetal hydronephrosis and postnatal urological abnormalities.
Observational study in Medicine, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed, 24 citations in OpenAlex.
- Evaluation of postoperative renal function in infants with congenital hydronephrosis using ROI from ultrasound technique in renography.BMC pediatrics · 2024Article
- Predicting clinically significant events in children with ureteropelvic junction obstruction.Frontiers in pediatrics · 2024Article
- Antenatally detected urinary tract dilatation: long-term outcome.Pediatric nephrology (Berlin, Germany) · 2023Review
- Clinical characteristics of patients with prenatal hydronephrosis in early postnatal period: a single center retrospective study.BMC pediatrics · 2023Article
- 2021 update on the urinary tract dilation (UTD) classification system: clarifications, review of the literature, and practical suggestions.Pediatric radiology · 2022Review
- Prenatal Diagnosis and Findings in Ureteropelvic Junction Type Hydronephrosis.Frontiers in pediatrics · 2020Review
- A comparative study on the Efficacy of Retroperitoneoscopic Pyeloplasty and Open Surgery for Ureteropelvic Junction Obstruction in Children.Pakistan journal of medical sciencesArticle
Corrections and comments
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Aim to illuminate the correlation between fetal hydronephrosis and postnatal urological abnormalities by a new classification system-"urinary tract dilation (UTD)" grade.Of 659 pregnancies screened by ultrasound, 34 cases were found with isolated fetal hydronephrosis, and enrolled in our study from 2017 to 2019. These 34 infants had been prospectively followed up to 6 months after birth by 3 times of urinary tract ultrasound. Hydronephrosis was graded in accordance with the UTD classification system.Among 34 infants with isolated fetal hydronephrosis. Twenty-four (70.6%) were classified as UTD A1 grade (mild hydronephrosis), and the other 10 (29.4%) were UTD A2-3 grade (moderate to severe hydronephrosis) by antenatal evaluation. After birth, all of the 24 infants (70.6%) with UTD A1 grade had normal ultrasonic findings of urinary tract; while the other 10 cases with UTD A2-3 grade had persistent abnormalities of urinary tract by postnatal assessment, sorted as UTD P1 grade (mild hydronephrosis) in 6 cases (17.6%), UTD P2 grade (moderate hydronephrosis) in 2 cases (5.9%) and UTD P3 grade (severe hydronephrosis) in 2 cases (5.9%). The most common postnatal urological abnormality of isolated fetal hydronephrosis was vesicoureteral reflux. During the follow-up period, 7 infants (20.6%) had urinary tract infection episodes and very few obtained positive cultures of the urine. Only 2 infants (5.9%) with the diagnosis of ureterovesical junction obstruction required surgery intervention, who were both classified as UTD P3 grade. None of the children with UTD P1 and P2 grades needed operation.The UTD classification system described the urinary tract both antenatally and postnatally, which could point out the correlation between fetal hydronephrosis and postnatal urological abnormalities. This new classification system is expected to be a good prognostic marker for fetal hydronephrosis.
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