Ultrasound-guided high-intensity focused ultrasound is technically feasible and safe for occluding placental vessels in early-onset twin-twin transfusion syndrome.

In 30 seconds

This Phase 1 clinical trial evaluated the feasibility and safety of ultrasound-guided high-intensity focused ultrasound for occluding placental vessels in women with early-onset twin-twin transfusion syndrome. Among 10 participants, 90% of targeted vessels (27 of 30) were successfully occluded, with no significant adverse events reported within 14 days post-treatment.

Key findings

• 90% of targeted placental vessels (27 of 30) were successfully occluded.
• No significant maternal or fetal adverse events were recorded post-treatment.
• 18 of 20 fetuses were alive 14 days after the procedure.
• Participants reported positive attitudes towards the treatment and study communication.

Why it matters

The study presents a noninvasive alternative to fetoscopic laser ablation for managing twin-twin transfusion syndrome, potentially reducing risks associated with invasive procedures. Understanding its safety and efficacy is crucial for improving outcomes in affected pregnancies.