Vicious circle between progressive right ventricular dilatation and pulmonary regurgitation in patients after tetralogy of Fallot repair? Right heart enlargement promotes flow reversal in the left pulmonary artery

Table 2 Student’s t-test comparison between the right and left parameters of cardiac magnetic resonance

	Right	Left	p-value
Proximal PA CSA, mm²/m²	225 ± 101	215 ± 71	0.87
Forward flow, L/min/m²	2.86 ± 0.89	2.49 ± 0.87	0.04
Reverse flow, L/min/m²	0.97 ± 0.43	1.08 ± 0.50	0.25
Net forward flow, L/min/m²	1.89 ± 0.60	1.40 ± 0.51	<0.001
Regurgitant fraction, %	34 ± 10	43 ± 12	<0.001
Lung area at cardiac level, cm²/m²	58.7 ± 7.9	32.0 ± 6.6	<0.001

ISSN: 1532-429X