CONCLUSION
In patients with TGA previously treated with the Mustard procedure, the high prevalence of long term complications due to transvenous pacing and baffle stenosis leads to clinically challenging situations. This report represents the outcomes of a unique, safe, and feasible strategy used in dilation of baffle stenosis using a mechanical rotating dilator sheath, followed by balloon-expandable stenting of the SVC baffle with a jailed non-functioning LA lead. Further studies are needed to assess the efficacy and safety of the mechanical rotating dilator sheath in other settings of CHD.