Aug 22, 2024 · The UTD classification system uses six ultrasound findings to describe the urinary tracts: anterior-posterior renal pelvic diameter (APRPD) calyceal dilatation, with distinction between central and peripheral calyces postnatally

The UTD classification system distinguishes antenatal from postnatal findings, where the higher numbers (UTD 1– 3) indicate greater risk of underlying or developing uropathy.

Mar 1, 2022 · Urinary tract dilation (UTD), previously known as hydronephrosis, is the most common congenital condition identified on prenatal ultrasonography. UTD can be physiologic and resolve spontaneously or can be caused by various congenital anomalies of the urinary tract, which can lead to renal failure if not treated properly.

This pathway should be used to guide the evaluation and management of patients presenting with ultrasound findings of perinatal urinary tract dilation (UTD). This pathway should be used by pediatricians, neonatologists, and urologists to guide risk based evaluation and treatment based on pre-natal and post-natal ultrasound findings.

Dec 1, 2014 · When UT dilation is detected postnatally (denoted as P), we recommend stratification of risk into three groups: low risk (UTD P1); intermediate risk (UTD P2); and high-risk (UTD P3) groups (Fig. 6). With UTD P1, the APRPD considered to be low risk for postnatal uropathies is 10 to <15 mm (Fig. 7 A and B). Again it should be emphasized that the ...

Urinary tract dilation (UTD) is one of the most commonly diagnosed fetal anomalies and is more common in boys than girls. Some studies show that it is found in as many as 1 in every 300 pregnancies. Most cases resolve on their own before delivery.

In 2014, a multidisciplinary consensus on the classification of pre- and postnatal urinary tract dilation (UTD classification) was developed. Its goal was to provide a standardized system for evaluating and reporting urinary tract dilation both in the prenatal and postnatal periods.

Aug 4, 2017 · If the renal pelvis measures between 10 mm and 15 mm or there is central calyceal dilation, then the urinary tract is graded UTD P1. If the anterior-posterior renal pelvic diameter >15 mm or peripheral calyces are dilated then it is categorized as UTD P2.

After birth, all of the 24 infants (70.6%) with UTD A1 grade had normal ultrasonic findings of urinary tract, indicating fetal hydronephrosis may be a transient or physiological condition; while the other 10 infants with UTD A2–3 grade had persistent abnormalities of urinary tract, sorted as UTD P1 grade (mild hydronephrosis) in 6 cases (17.6 ...

The present study aims to investigate clinical utility of new UTD classification system in foetal UTD abnormalities and to evaluate the role of UTD classification system in antenatal prediction/prognostication of severity of UTD abnormalities.