Serial qualitative maternal nephrosonography in pregnancy.

Area of Science:

• Obstetrics and Gynecology
• Urology
• Medical Imaging

Background:

• Pregnancy commonly causes physiological changes in the urinary system.
• Asymmetrical upper urinary tract dilatation is a known, but not fully understood, phenomenon during pregnancy.

Purpose of the Study:

• To serially assess upper urinary tract changes during pregnancy and postpartum using real-time nephrosonography.
• To detail the dynamics and progression of hydronephrosis during gestation.
• To investigate the long-term effects of pregnancy on urinary tract distensibility.

Main Methods:

• Serial real-time nephrosonography was performed on 34 pregnant women (primigravidae).
• Ultrasound examinations were conducted throughout pregnancy and for three months postpartum.
• Data analysis focused on the degree and progression of upper urinary tract dilatation.

Main Results:

• The study confirmed the asymmetrical nature of pregnancy-induced upper urinary tract dilatation.
• Significant dilatation was observed to develop after twenty weeks of gestation.
• A long-term impact on the upper urinary tract's distensibility was noted post-delivery.

Conclusions:

• Pregnancy hydronephrosis is a dynamic process with a clear gestational threshold for development.
• Serial nephrosonography provides detailed insights into pregnancy-related urinary tract alterations.
• Pregnancy can induce lasting changes in urinary tract distensibility.