Table 2.

Major interventional catheterizations and surgeries in patients managed with a biventricular (BV) circulation from birth (n=31) and in patients who underwent conversion to a BV circulation after initial univentricular palliation (n=7)

	Patients (%)	Performed in neonatal period	Total performed
BV from birth (n=31)
Interventional catheterizations
Balloon dilation of aortic valve	28 (90%)	24	40
Balloon dilation of mitral valve*	6 (19%)	1	10
Balloon dilation of aortic arch	4 (13%)	1	4
Surgeries
Mitral valve repair	18 (58%)	9	29
Endocardial fibroelastosis resection	17 (55%)	6	22
Aortic valve repair	14 (45%)	3	19
Ross procedure (pulmonary autograft)	12 (39%)	4	12
Subaortic resection or Konno	9 (29%)	2	10
Mitral valve replacement	5 (16%)	0	6
Coarctation repair	4 (13%)	4	4
Aortic valve replacement (mechanical)	1 (3%)	1	1
Converted to BV circulation (n=7)
Interventional catheterizations
Balloon dilation of aortic valve	4 (57%)	3	7
Balloon dilation of mitral valve	1 (14%)	0	1
Balloon dilation of aortic arch	1 (14%)	0	1
Staged Palliative Surgeries
Stage 1 (Norwood)	7 (100%)	7	7
Bidirectional Glenn	6 (86%)	--	6
Fontan	2 (29%)	--	2
Other Surgeries
Endocardial fibroelastosis resection	6 (86%)	4	19
Mitral valve repair	6 (86%)	3	18
Aortic valve repair	6 (86%)	4	14
Mitral valve replacement	3 (43%)	0	5
Ross procedure (pulmonary autograft)	2 (29%)	0	2
Subaortic resection or Konno	1 (14%)	0	1

Listed in order of most common procedures performed.

^*Native or surgically implanted Melody valve in the mitral position.