What is a Balloon Atrial Septostomy (Rashkind Procedure)?

A balloon atrial septostomy (often called the Rashkind procedure) is a temporary intervention used to stabilize babies born with D-TGA. It is definitively not open-heart surgery. Instead, it is a minimally invasive procedure where a pediatric cardiologist threads a tiny, flexible tube (catheter) through a blood vessel—usually in your baby’s belly button or leg—up into the heart ^[1][2]. A tiny balloon at the tip of the catheter is inflated and pulled back to enlarge a natural hole between the heart’s upper chambers. This allows oxygen-rich and oxygen-poor blood to mix, keeping your baby safe until they are ready for their definitive open-heart surgery (the Arterial Switch Operation) ^[3][1][4].

Why is it needed?

In D-TGA, the heart’s two main arteries are connected to the wrong pumping chambers, creating two separate blood loops. The blood going out to the body doesn’t pick up oxygen from the lungs ^[3]. For a baby to survive the first days of life, there must be a way for the oxygen-rich blood to cross over into the blood loop that feeds the body ^[1].

Most babies with D-TGA are immediately started on a medication called Prostaglandin (PGE1) to keep a specific fetal blood vessel open. However, this medication alone is sometimes not enough to get sufficient oxygen to the body. By enlarging the hole between the upper chambers (the atrial septum), the septostomy procedure ensures a steady supply of oxygen reaches your baby’s brain and vital organs ^[1][5][6].

How is the procedure performed?

Because babies with D-TGA can be very unstable right after birth, the Rashkind procedure is frequently performed rapidly right at the baby’s bedside in the Neonatal Intensive Care Unit (NICU) ^[2].

• No chest incisions: The doctor accesses the heart through an existing vein, most commonly the umbilical vein in the belly button or the femoral vein in the groin ^[1][7].
• Pain management: Your baby will be given sedation and pain medication to ensure they are comfortable and asleep during the procedure.
• Guided by sound waves: Instead of moving the baby to an operating room, the team uses an ultrasound machine (echocardiogram) to watch the catheter’s movement inside the heart in real-time ^[2][8]. This saves critical time and avoids the risks of transporting a sick infant ^[2].
• The balloon maneuver: Once the catheter crosses the thin wall between the upper chambers, a tiny balloon is inflated. The doctor swiftly pulls the balloon back through the wall, stretching and opening the tissue to create a wider, permanent opening for blood to flow through ^[3][5].

During the procedure, parents are typically asked to step out of the NICU room to allow the medical team space to work quickly. The procedure itself usually takes only about 30 to 60 minutes.

Are there risks?

While the Rashkind procedure is safe, closely monitored, and frequently lifesaving, any invasive procedure carries some risks ^[1][9]. Potential complications are rare but can include bleeding at the catheter insertion site, temporary changes in heart rhythm, blood clots, or very rarely, injury to the blood vessels or heart tissue ^[10][7]. The care team will carefully monitor your baby and discuss these risks with you beforehand.

A Bridge to the “Real” Surgery

It is completely normal for parents to feel confused when doctors perform a heart procedure just days or hours before discussing the “real” surgery.

The balloon septostomy is a palliative step ^[4]. Palliative means it relieves the immediate life-threatening problem—critically low oxygen—but it does not fix the underlying anatomical defect of the switched arteries ^[6][11].

Once the septostomy is complete, your baby’s oxygen levels will typically improve ^[3]. They will continue to be closely monitored in the NICU, still hooked up to IVs, monitors, and sometimes a ventilator. This provides the medical team with precious time—usually a few days—to allow your baby to grow stronger, let their lungs adjust, and prepare them for the Arterial Switch Operation, which is open-heart surgery ^[3][6].