Experience with balloon valvuloplasty in pulmonary stenosis

Area of Science:

• Cardiology
• Interventional Cardiology
• Pediatric Cardiology

Background:

• Pulmonary stenosis is a narrowing of the pulmonary valve, often requiring intervention.
• Balloon valvuloplasty offers a less invasive treatment option for valvular pulmonary stenosis.

Purpose of the Study:

• To evaluate the efficacy and outcomes of balloon valvuloplasty in patients with moderate to severe pulmonary stenosis.

Main Methods:

• Fourteen patients with pure valvular pulmonary stenosis underwent balloon valvuloplasty.
• Hemodynamic measurements of right ventricular pressure were recorded immediately post-procedure, at 4 weeks, and during long-term follow-up (6-15 months).

Main Results:

• Immediately after valvuloplasty, right ventricular pressure decreased from 125 +/- 17.18 mmHg to 56.67 +/- 8.72 mmHg.
• At 4 weeks, systolic pressure further reduced to 46.71 +/- 5.06 mmHg.
• All patients remained asymptomatic during a mean 10-month follow-up, with one case showing a recurrence of pressure gradient.

Conclusions:

• Balloon valvuloplasty is an effective treatment for moderate to severe pulmonary stenosis.
• The procedure provides significant and sustained hemodynamic improvement.
• Long-term follow-up indicates a low rate of restenosis, maintaining asymptomatic status for most patients.