Fetal Cystoscopy for Severe Lower Urinary Tract Obstruction

This study evaluates fetal cystoscopy, a minimally invasive procedure performed during pregnancy, to treat a serious blockage in a male baby's urinary tract called lower urinary tract obstruction (LUTO). Left untreated, this condition can severely damage the baby's kidneys and lungs. You may be eligible if: - You are a pregnant woman aged 18 or older carrying a single male fetus - Your baby has been diagnosed with LUTO showing a blocked bladder and reduced amniotic fluid - Your baby's urine tests show kidneys may still be salvageable - Your baby has no chromosomal abnormalities - You are between 16 and 26 weeks pregnant at the time of the procedure - You have considered and declined termination - You have adequate social support and health insurance for follow-up care You may NOT be eligible if: - Your baby has other abnormalities unrelated to LUTO, or has a heart defect - You are at high risk for preterm labor (short cervix, prior preterm birth) - You have placental complications (previa, abruption, accreta) - You are HIV positive, or Hepatitis B or C positive - You have a medical condition that makes surgery or anesthesia unsafe for you - You are unable to travel and comply with follow-up requirements Talk to your doctor to see if this trial is right for you.