Renal calculi in pregnancy.

Area of Science:

• Urology
• Nephrology
• Obstetrics

Background:

• Urinary tract calculi during pregnancy present diagnostic and management challenges.
• Literature review and case series analysis are crucial for understanding this condition.

Observation:

• Renal ultrasonography is a safe initial imaging modality with specific limitations.
• Excretory urography is indicated for specific clinical scenarios, including refractory urinary infections and declining renal function.
• Precise timing of postinjection films in excretory urography is critical for accurate diagnosis.

Findings:

• A 12-year interval study identified 17 cases of urinary tract calculi in pregnancy (0.08% of deliveries).
• Criteria for intervention include calculous pyelonephritis, persistent massive hydronephrosis with renal function impairment, and sepsis.

Implications:

• This research informs clinical decision-making for managing pregnant patients with urinary stones.
• Optimizing diagnostic imaging and intervention timing can improve maternal and fetal outcomes.
• Highlights the importance of a multidisciplinary approach in managing complex obstetric urological cases.