Key result
Balloon pulmonary valvuloplasty provides durable relief for pulmonary stenosis, with ~10% restenosis but frequent late regurgitation.
Why the study?
Does balloon pulmonary valvuloplasty provide effective immediate and long-term relief of valvar pulmonary stenosis while minimizing restenosis and late pulmonary insufficiency?
Does balloon pulmonary valvuloplasty provide effective immediate and long-term relief of valvar pulmonary stenosis while minimizing restenosis and late pulmonary insufficiency?
Balloon pulmonary valvuloplasty is the treatment of choice for valvar pulmonary stenosis, and using a lowered balloon/annulus ratio of 1.2 to 1.25 is recommended to balance effective gradient relief against the risk of late pulmonary insufficiency.
Answers are grounded in this paper and cite their sources.
Supports balloon valvuloplasty for valvar PS relief; leaves open optimal balloon sizing to limit late insufficiency.
There is conclusive evidence for relief of pulmonary valve obstruction immediately after balloon pulmonary valvuloplasty (BPV) and at follow-up. Development of infundibular obstruction is seen in more severe PS cases and in older subjects. Reappearance of PS was observed in approximately 10 % of patients following BPV. The reasons for recurrence were found to be balloon/annulus ratio less than 1.2 and immediate post-BPV pulmonary valve peak gradients greater than 30 mmHg. Recurrent stenosis is successfully addressed by repeating BPV with lager balloons than used initially. Long-term results revealed continue relief of obstruction, but with development of pulmonary insufficiency, some patients requiring replacement of the pulmonary valve. It was concluded that BPV is the treatment of choice in the management valvar PS and that balloon/annuls ratio used for BPV should be lowered to 1.2 to 1.25. It was also suggested that strategies should be developed to prevent/reduce pulmonary insufficiency at long-term follow-up.
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P. Syamasundar Rao (2023) conducted a review in Valvar pulmonary stenosis (PS). Balloon pulmonary valvuloplasty (BPV) was evaluated on Relief of pulmonary valve obstruction (peak systolic pressure gradient reduction), restenosis, and long-term pulmonary insufficiency (PI). Balloon pulmonary valvuloplasty provides immediate and long-term relief of valvar pulmonary stenosis with ~10% restenosis, though late pulmonary insufficiency frequently develops.
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