Surgical repair of truncus arteriosus associated with interrupted aortic arch: long-term outcomes

Lyubomyr Bohuta, Aisyah Hussein, Tyson A Fricke, Yves d'Udekem, Martin Bennett, Christian Brizard, Igor E Konstantinov
Annals of Thoracic Surgery 2011, 91 (5): 1473-7

BACKGROUND: Truncus arteriosus (TA) with interrupted aortic arch (IAA) is a rare combination of complex anomalies. We report long-term follow-up after one-stage repair of TA associated with IAA.

METHODS: From April 1985 to August 2007, 16 patients with TA associated with IAA underwent one-stage repair.

RESULTS: There were 2 (12.5%) early deaths and no late deaths. Follow-up was 92.9% complete (13 of 14 patients), with 1 patient lost to follow-up. Median duration of follow-up was 18.2 years (range, 2.1 to 21.9 years). Functional status in all patients was good. Thirteen patients underwent 25 surgical reoperations and 5 interventional procedures (3 aortic arch balloon angioplasties and 2 pulmonary artery balloon angioplasties). Overall freedom from any reoperation was 69.2% at 1 month, 54.5% at 3 years, 30% at 5 years, 11.1% at 10 years, and 0% at 15 years after the initial operation. Freedom from aortic reoperation was 76.9% at 1 month, 72.7% at 3 years, 70% at 5 years, 66.7% at 10 years, and 57.1% at 15 years; while freedom from right ventricular-to-pulmonary artery conduit replacement was 84.6% at 1 month, 63.6% at 3 years, 40% at 5 years, 11.1% at 10 years, and 0% at 15 years. Finally, freedom from truncal valve reoperation was 100% at 5 years, 88.9% at 10 years, and 85.7% at 15 years.

CONCLUSIONS: One-stage repair of TA-IAA can be undertaken with good long-term results. Despite a significant reoperation rate, patients' functional status remains good at the long-term follow-up.

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