Outcome after repair of tetralogy of Fallot with absent pulmonary valve.

BACKGROUND

Tetralogy of Fallot with absent pulmonary valve (TOF/APV) is associated with pulmonary artery dilatation and airway compression.

METHODS

Since January 1, 1984, 28 patients with TOF/ APV have undergone complete repair (median age 11 days, range 1 day to 16 years).

RESULTS

Thirteen patients were ventilated for respiratory failure preoperatively and extracorporeal membrane oxygenation was used in 3. Twenty-six patients underwent pulmonary artery plication (11 anterior, 15 anterior/ posterior). The right ventricular outflow tract (RVOT) was reconstructed with a patch (19), valved conduit (5), or monocusp valve (4). Early mortality was 21.4% (6/28), with 1 late death. All early deaths occurred in infants intubated preoperatively. Survival was 77% (95% confidence limit [CL] 56%, 89%) at 1 year and 72% (95% CL 50%, 86%) at 10 years. After surgery, 3 patients underwent reoperation for persistent respiratory symptoms, which resolved after repeat plication and placement of a valved conduit. Freedom from death or reoperation was 68% (95% CL 46%, 83%) at 1 year and 52% (95% CL 29%, 71%) at 10 years. In a multivariable analysis, only preoperative intubation was associated with a worse outcome (p = 0.04).

CONCLUSIONS

Long-term outcome for patients with TOF/APV who survive the initial repair is good. Repeat plication and pulmonary valve implantation may improve outcome in patients with persistent airway compression.