Diagnostic value of anteroposterior diameter of fetal renal pelvis during second and third trimesters in predicting postnatal surgery among Korean population: Useful information for antenatal counseling

Hyung Joon Kim, Hyun Jin Jung, Hye Young Lee, Yong Seung Lee, Young Jae Im, Chang Hee Hong, Sang Won Han

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Objective: To establish prognostic data regarding fetal hydronephrosis using the anteroposterior diameter (APD) and the need for interventional surgery in the Korean population. Methods: A total of 187 children with an APD of <4 mm on obstetric ultrasound scans at any gestational age were retrospectively reviewed. The affected renal units were divided into 2 groups: surgical and nonsurgical. The ultrasound findings were compared at 3 gestational ages: second trimester (15-26 weeks' gestation), early third trimester (27-33 weeks' gestation), and late third trimester (34-40 weeks' gestation). Results: The area under the receiver operating characteristic curve was 0.770, 0.828, and 0.812 at the second, early third, and late third trimesters, respectively. A 100% sensitivity for predicting postnatal surgery could be achieved at a cutoff APD of 5 mm during the second trimester, 8 mm during the early third trimester, and 10 mm during the late third trimester if scheduled antenatal ultrasound scans were performed. A cutoff APD of 11 mm during the second trimester was of diagnostic value in selecting children at risk of postnatal surgery with an odds ratio of 5.13 (95% confidence interval 1.62-16.25), with relatively high sensitivity and specificity. With a cutoff of 15 mm during the early third and late third trimesters, the odds ratio was 11.51 (95% confidence interval 5.05-26.23) and 6.94 (95% confidence interval 3.30-14.57), respectively. Conclusion: Compared with an APD of 10 mm, the most commonly used standard cutoff value in predicting postnatal hydronephrosis and its outcome, an APD cutoff of 5, 8, and 10 mm during the second, early third, and late third trimesters, respectively, is more specific in predicting the need for postnatal surgical intervention in the Korean population.

Original languageEnglish
Pages (from-to)1132-1137
Number of pages6
JournalUrology
Volume79
Issue number5
DOIs
Publication statusPublished - 2012 May 1

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Kidney Pelvis
Third Pregnancy Trimester
Second Pregnancy Trimester
Counseling
Population
Hydronephrosis
Confidence Intervals
Pregnancy
Gestational Age
Odds Ratio
ROC Curve
Obstetrics
Kidney
Sensitivity and Specificity

All Science Journal Classification (ASJC) codes

  • Urology

Cite this

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title = "Diagnostic value of anteroposterior diameter of fetal renal pelvis during second and third trimesters in predicting postnatal surgery among Korean population: Useful information for antenatal counseling",
abstract = "Objective: To establish prognostic data regarding fetal hydronephrosis using the anteroposterior diameter (APD) and the need for interventional surgery in the Korean population. Methods: A total of 187 children with an APD of <4 mm on obstetric ultrasound scans at any gestational age were retrospectively reviewed. The affected renal units were divided into 2 groups: surgical and nonsurgical. The ultrasound findings were compared at 3 gestational ages: second trimester (15-26 weeks' gestation), early third trimester (27-33 weeks' gestation), and late third trimester (34-40 weeks' gestation). Results: The area under the receiver operating characteristic curve was 0.770, 0.828, and 0.812 at the second, early third, and late third trimesters, respectively. A 100{\%} sensitivity for predicting postnatal surgery could be achieved at a cutoff APD of 5 mm during the second trimester, 8 mm during the early third trimester, and 10 mm during the late third trimester if scheduled antenatal ultrasound scans were performed. A cutoff APD of 11 mm during the second trimester was of diagnostic value in selecting children at risk of postnatal surgery with an odds ratio of 5.13 (95{\%} confidence interval 1.62-16.25), with relatively high sensitivity and specificity. With a cutoff of 15 mm during the early third and late third trimesters, the odds ratio was 11.51 (95{\%} confidence interval 5.05-26.23) and 6.94 (95{\%} confidence interval 3.30-14.57), respectively. Conclusion: Compared with an APD of 10 mm, the most commonly used standard cutoff value in predicting postnatal hydronephrosis and its outcome, an APD cutoff of 5, 8, and 10 mm during the second, early third, and late third trimesters, respectively, is more specific in predicting the need for postnatal surgical intervention in the Korean population.",
author = "Kim, {Hyung Joon} and Jung, {Hyun Jin} and Lee, {Hye Young} and Lee, {Yong Seung} and Im, {Young Jae} and Hong, {Chang Hee} and Han, {Sang Won}",
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Diagnostic value of anteroposterior diameter of fetal renal pelvis during second and third trimesters in predicting postnatal surgery among Korean population : Useful information for antenatal counseling. / Kim, Hyung Joon; Jung, Hyun Jin; Lee, Hye Young; Lee, Yong Seung; Im, Young Jae; Hong, Chang Hee; Han, Sang Won.

In: Urology, Vol. 79, No. 5, 01.05.2012, p. 1132-1137.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Diagnostic value of anteroposterior diameter of fetal renal pelvis during second and third trimesters in predicting postnatal surgery among Korean population

T2 - Useful information for antenatal counseling

AU - Kim, Hyung Joon

AU - Jung, Hyun Jin

AU - Lee, Hye Young

AU - Lee, Yong Seung

AU - Im, Young Jae

AU - Hong, Chang Hee

AU - Han, Sang Won

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N2 - Objective: To establish prognostic data regarding fetal hydronephrosis using the anteroposterior diameter (APD) and the need for interventional surgery in the Korean population. Methods: A total of 187 children with an APD of <4 mm on obstetric ultrasound scans at any gestational age were retrospectively reviewed. The affected renal units were divided into 2 groups: surgical and nonsurgical. The ultrasound findings were compared at 3 gestational ages: second trimester (15-26 weeks' gestation), early third trimester (27-33 weeks' gestation), and late third trimester (34-40 weeks' gestation). Results: The area under the receiver operating characteristic curve was 0.770, 0.828, and 0.812 at the second, early third, and late third trimesters, respectively. A 100% sensitivity for predicting postnatal surgery could be achieved at a cutoff APD of 5 mm during the second trimester, 8 mm during the early third trimester, and 10 mm during the late third trimester if scheduled antenatal ultrasound scans were performed. A cutoff APD of 11 mm during the second trimester was of diagnostic value in selecting children at risk of postnatal surgery with an odds ratio of 5.13 (95% confidence interval 1.62-16.25), with relatively high sensitivity and specificity. With a cutoff of 15 mm during the early third and late third trimesters, the odds ratio was 11.51 (95% confidence interval 5.05-26.23) and 6.94 (95% confidence interval 3.30-14.57), respectively. Conclusion: Compared with an APD of 10 mm, the most commonly used standard cutoff value in predicting postnatal hydronephrosis and its outcome, an APD cutoff of 5, 8, and 10 mm during the second, early third, and late third trimesters, respectively, is more specific in predicting the need for postnatal surgical intervention in the Korean population.

AB - Objective: To establish prognostic data regarding fetal hydronephrosis using the anteroposterior diameter (APD) and the need for interventional surgery in the Korean population. Methods: A total of 187 children with an APD of <4 mm on obstetric ultrasound scans at any gestational age were retrospectively reviewed. The affected renal units were divided into 2 groups: surgical and nonsurgical. The ultrasound findings were compared at 3 gestational ages: second trimester (15-26 weeks' gestation), early third trimester (27-33 weeks' gestation), and late third trimester (34-40 weeks' gestation). Results: The area under the receiver operating characteristic curve was 0.770, 0.828, and 0.812 at the second, early third, and late third trimesters, respectively. A 100% sensitivity for predicting postnatal surgery could be achieved at a cutoff APD of 5 mm during the second trimester, 8 mm during the early third trimester, and 10 mm during the late third trimester if scheduled antenatal ultrasound scans were performed. A cutoff APD of 11 mm during the second trimester was of diagnostic value in selecting children at risk of postnatal surgery with an odds ratio of 5.13 (95% confidence interval 1.62-16.25), with relatively high sensitivity and specificity. With a cutoff of 15 mm during the early third and late third trimesters, the odds ratio was 11.51 (95% confidence interval 5.05-26.23) and 6.94 (95% confidence interval 3.30-14.57), respectively. Conclusion: Compared with an APD of 10 mm, the most commonly used standard cutoff value in predicting postnatal hydronephrosis and its outcome, an APD cutoff of 5, 8, and 10 mm during the second, early third, and late third trimesters, respectively, is more specific in predicting the need for postnatal surgical intervention in the Korean population.

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