percutaneous balloon mitral valvuloplasty
Also written as: PBMV — Percutaneous Balloon Mitral Valvuloplasty
Minimally invasive catheter-based procedure to treat mitral stenosis by inflating a balloon across the valve to separate fused commissures.
Full Definition
Percutaneous balloon mitral valvuloplasty (PBMV) is a transcatheter intervention for severe mitral stenosis, typically due to rheumatic heart disease. The procedure involves advancing a balloon catheter across the atrial septum via transseptal puncture, positioning it across the stenotic mitral valve, and inflating it to mechanically separate fused commissures and increase valve area. PBMV is considered first-line therapy for suitable candidates with favorable valve morphology, avoiding the need for open-heart surgery. Success is measured by significant increase in mitral valve area (>1.5 cm²) and reduction in transmitral gradient. Complications include mitral regurgitation, atrial septal defect, and rarely, valve leaflet tear requiring emergency surgery.
Usage
Usage note: Commonly abbreviated as PBMV after first use; ensure accurate spelling of 'valvuloplasty' versus 'valvotomy.'
In Context
- "The patient underwent successful percutaneous balloon mitral valvuloplasty with increase in valve area from 0.8 to 2.1 cm²." — Interventional cardiology procedure note
- "PBMV resulted in significant symptom improvement and elimination of pulmonary hypertension." — Post-procedure follow-up report