Percutaneous intraluminal downsizing of systemic-to-pulmonary artery shunts: a novel application of the Diabolo stent technique-Case series and description of the technique.

Percutaneous intraluminal downsizing of systemic-to-pulmonary artery shunts with a covered stent in a Diabolo configuration is safe and feasible. With this technique, the pulmonary blood flow can be adjusted in a physiologic closed-chest condition and further regulated over time.