Table 1:

Preoperative data for patients with a small pulmonary valve (echocardiographic z < −4) who underwent either valve-sparing or transannular patch (TAP) surgery

	Valve sparing (n = 11)	TAP (n = 8)	P-value
Age (months)	6.9 (2.2 to 16.1)	8.7 (1.0 to 13)	0.65
Body weight (kg)	6.9 (4.6 to 9.2)	6.4 (3.6 to 8.9)	0.68
PVD (mm)	5.7 (4.9 to 6.7)	5.1 (3.3 to 6.8)	0.19
PVD (z-score)	−4.9 (−6.3 to −4.3)	−6.1 (−7.9 to −4.3)	0.04
Bicuspid pulmonary valve	10 (90%)	9 (100%)	0.55
Prior shunt	0	4	0.02

PVD: pulmonary valve annulus diameter.