Requirements for biventricular repair after bilateral pulmonary artery banding for patients with borderline left ventricle

Figures

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  The MV shows no significant growth before or after bPAB.

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  Figure 1. Outcomes of patients. Thirty patients were included in the study. Twelve patients underwent UVR. This group included 2 patients with cAS, 1 patient with CoA complex, 3 patients with IAA, and 6 patients with HLHC. Eighteen patients underwent BVRs. This second group included 1 patient with cAS, 6 patients with CoA complex, 10 patients with IAA, and 1 patient with HLHC. cAS, Critical aortic stenosis; CoA, coarctation of aorta; IAA, interruption of the aortic arch; HLHC, hypoplastic left heart complex; BVR, biventricular repair; U, univentricular repair; BDG, bidirectional Glenn; AVP, aortic valve plasty; VSD cl, ventricular septal defect closure.

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  Figure 2. Comparison of each parameter in group U before versus after bPAB. A paired t test was used to compare pre- and post-bPAB values. Values are presented as the mean ± SD. The upper and lower borders of the box indicate the upper and lower quartiles; the middle horizontal line represents the median; and the upper and lower whiskers show the maximum and minimum values in all box-and-whiskers graphs. Dots represent individual measurements. A, Patients show significant body weight gain. B, There is no significant increase in MV size. C, There is no significant increase in AV size. D, There is no significant increase in TV size. E, There is no significant increase in PV size. bPAB, Bilateral pulmonary artery banding; BW, body weight; MV-Z, mitral valve Z-score obtained by echocardiography; AV-Z, aortic valve Z-score obtained by echocardiography; TV-Z, tricuspid valve Z-score obtained by echocardiography; PV-Z, pulmonary valve Z-score obtained by echocardiography.

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  Figure 3. Comparison of each parameter in group B before versus after bPAB. A paired t test was used to compare pre- and post-bPAB values. Values are presented as the mean ± SD. The upper and lower borders of the box indicate the upper and lower quartiles; the middle horizontal line represents the median; and the upper and lower whiskers show the maximum and minimum values in all box-and-whiskers graphs. Dots represent individual measurements. A, Patients show significant body weight gain. B, There is no significant increase in MV size. C, AV size shows significant increase after bPAB. D, There is no significant increase in TV size. E, There is no significant increase in PV size. bPAB, Bilateral pulmonary artery banding; BW, body weight; MV-Z, mitral valve Z-score obtained by echocardiography; AV-Z, aortic valve Z-score obtained by echocardiography; TV-Z, tricuspid valve Z-score obtained by echocardiography; PV-Z, pulmonary valve Z-score obtained by echocardiography.