Double balloon pulmonary valvuloplasty: multi-track system versus conventional technique

Area of Science:

• Cardiology
• Interventional Cardiology
• Pediatric Cardiology

Background:

• Double balloon pulmonary valvuloplasty (DBPV) is a standard treatment for pulmonary valve stenosis, particularly in patients with large annuli.
• Conventional DBPV often requires two venous accesses and can be technically challenging.

Purpose of the Study:

• To assess if the Multi-Track system (MTS) can simplify the DBPV procedure.
• To compare the efficacy and safety of MTS-assisted DBPV with conventional DBPV.

Main Methods:

• A prospective study of 20 patients undergoing DBPV with MTS (G1).
• Comparison with a historical control group of 28 patients who underwent conventional DBPV (G2).
• Evaluation of procedural parameters, clinical outcomes, and follow-up data.

Main Results:

• MTS balloons were easily deployed across the pulmonary valve.
• No significant differences in residual gradients or right ventricular to systemic pressures between groups.
• Significantly shorter procedure and fluoroscopy times in the MTS group (G1).
• No major complications reported in either group.

Conclusions:

• The Multi-Track system (MTS) simplifies double balloon pulmonary valvuloplasty (DBPV).
• MTS-assisted DBPV offers comparable midterm clinical outcomes to conventional DBPV.
• The MTS facilitates a more expedited procedure for pulmonary valve stenosis treatment.