Causes of restenosis after balloon valvuloplasty for valvular pulmonary stenosis

ACC/AHA 2008 Guidelines for the Management of Adults With Congenital Heart Disease

“…When restenosis does occur after percutaneous balloon pulmonary valvotomy, it appears that a repeat procedure is effective in patients without dysplastic pulmonary valves. 405 Several studies have been reported that compared balloon valvotomy with matched surgical control patients. 392,406,407 In 1 study, 406 gradients were slightly but statistically higher in the post-balloon valvotomy group than in the surgical cohort (24 plus or minus 2.7 versus 16 plus or minus 1.5 mm Hg).…”

ACC/AHA 2008 Guidelines for the Management of Adults With Congenital Heart Disease: Executive Summary

“…When restenosis does occur after percutaneous balloon pulmonary valvotomy, it appears that a repeat procedure is effective in patients without dysplastic pulmonary valves. 100 Percutaneous balloon valvotomy thus appears to be an excellent alternative to surgical valvuloplasty or valve replacement in most patients with classic, doming, valvular PS. Its use in patients with a dysplastic valve is much less established.…”

Balloon pulmonary valvuloplasty: A Review

“…We have systematically investigated the causes of recurrence of pulmonic stenosis following balloon valvuloplasty . 34 On the basis of results of 6-34 months of follow-up catheterization data in 36 children, they were divided into: Group XI with good results (pulmonary valve gradient < 30 mmHg or less), 29 patients; and Group XII with poor results (gradient >30 mmHg), 7 patients (Table I). In Group XI with good results the pulmonary valvar gradient decreased from 90.3f47.7 to 24.8k18.9 mmHg (p < 0.001) immediately following valvuloplasty which fell further to 15.85-9.7 mmHg at follow-up catheterization.…”