Table 2.

EKG and Echocardiogram Data

Variable	Pulmonic Stenosis	Tetralogy of Fallot	P-value
PR interval (ms)	177 ± 32	177 ± 55	0.946
QRS width (ms)	114 ± 27	150 ± 28	<0.001
QTc (ms)	421 ± 51	420 ± 53	0.888
Right atrium volume (mL)	25.1 ± 10.6	27.0 ± 10.6	0.560
Right ventricle volume†	1.5 ± 1.0	1.5 ± 1.0	0.761
Right ventricle function*†	1 (0,2)	1 (0,2)	0.512
Left ventricle diastolic width (cm)	4.4 ± 0.5	4.5 ± 0.8	0.457
Left ventricle systolic width (cm)	2.9 ± 0.5	3.1 ± 0.6	0.289
Left ventricle function*†	0 (0,0)	0 (0,0)	0.163
Aortic regurgitation*‡	0 (0,0)	0.5 (0,2)	0.021
Pulmonic regurgitation‡	3.2 ± 0.9	2.4 ± 1.6	0.004
Mitral regurgitation‡	0.9 ± 0.6	0.9 ± 0.9	0.869
Tricuspid regurgitation‡	1.5 ± 1.0	1.5 ± 0.9	0.853
Pulmonic gradient (mmHg)	8.2 ± 3.1	13.9 ± 8.2	0.007
Right ventricular systolic pressure (mmHg)	35 ± 13	46 ± 20	0.007
Left ventricle ejection fraction (%)	56 ± 5	54 ± 8	0.166

Data given as mean ± SD;

^*Data given as median (IQ range);

^† Volume/function graded from 0 (normal) to 3 (severely dilated/decreased);

^‡Valvular regurgitation graded as 0 (none), 1 (mild) to 4 (severe)