Mild pyelectasis: evaluating the relationship between gestational age and renal pelvic anterior-posterior diameter.
Publication/Presentation Date
10-1-2003
Abstract
OBJECTIVE: To determine the relationship between gestational age and renal pelvic anterior-posterior diameter and the feasibility of developing gestational age-specific thresholds for the diagnosis of mild pyelectasis.
METHODS: Cross-sectional study of 420 singleton fetuses between 16 and 39 weeks' gestation. The mean renal AP diameter as a function of gestational age was determined using fractional polynomial regression models and centile plots were generated. Assessment of goodness of fit for each regression model was performed.
RESULTS: There was a positive correlation between gestational age and renal pelvic AP diameter (Pearson's Correlation Coefficient 0.65). Using the derived mean and standard deviations of renal AP diameter, gestational-age specific 95% reference levels were generated. The sensitivity, specificity, positive, and negative predictive values of using the gestational age-specific cutoffs for predicting persistent postnatal renal anomaly were 80%; 99%; 29%; and 99% respectively.
CONCLUSION: There is a positive correlation between gestational age and renal pelvic AP diameters. Reliable gestational age-specific renal AP thresholds for diagnosis of pyelectasis are provided.
Volume
23
Issue
10
First Page
824
Last Page
827
ISSN
0197-3851
Published In/Presented At
Odibo, A. O., Marchiano, D., Quinones, J. N., Riesch, D., Egan, J. F., & Macones, G. A. (2003). Mild pyelectasis: evaluating the relationship between gestational age and renal pelvic anterior-posterior diameter. Prenatal diagnosis, 23(10), 824–827. https://doi.org/10.1002/pd.709
Disciplines
Medicine and Health Sciences
PubMedID
14558027
Department(s)
Department of Obstetrics and Gynecology
Document Type
Article