Posterior Urethral Valve in Triamniotic Trichorionic Triplets, a Case Report

Posterior urethral valves (PUV) incresingly identified before birth, displays a range of severity levels. The extent of obstruction resulting from this anomaly hinges on the specific structure of the obstructive membrane valve within the urethra. While posterior urethral valves are congenital, their exact embryological origin provoke ongoing discussion and lacks consensus. In fetuses diagnosed with PUV early in pregnancy with evidence of reduced amniotic fluid volume along with declining renal function due to urine aspiration, antenatal intervention such as vesicoamniotic shunting can improve postnatal renal function. We present a case involving triamniotic trichorionic triplets conceived via in vitro fertilization (IVF) and preimplantation genetic testing for aneuploidy (PGT-A). Identified via antenatal ultrasound screening, these triplets demonstrate diverse degrees of severity and outcomes. This case highlights the significance of early diagnosis and prompt identifycation of such conditions to reduce complexity and enhance outcomes.