Related Experiment Video
Updated: Aug 12, 2026

A Simplified Stepwise Approach to Echo Guidance during Percutaneous Mitral Valve Repair
Published on: October 16, 2021
[Percutaneous mitral valvuloplasty with Inoue balloon and pregnancy]
C A Iñigo Riesgo1, C J Solórzano Martín, G Delgado Caro
1Hospital Gineco, Centro Médico Nacional de Occidente (CMNO) del Instituto Mexicano del Seguro Social (IMSS) en Guadalajara Jalisco, México.
Percutaneous mitral valvuloplasty using the Inoue balloon safely treated severe mitral stenosis in pregnant women unresponsive to standard care. This intervention significantly improved maternal symptoms and hemodynamics with excellent fetal outcomes.
Area of Science:
- Interventional Cardiology
- Maternal-Fetal Medicine
- Cardiovascular Surgery
Context:
- Severe mitral stenosis in pregnancy poses significant risks to both mother and fetus.
- Conventional management is often insufficient for advanced stages (NYHA III-IV) of mitral stenosis during gestation.
- Interventional cardiology offers a less invasive alternative for managing complex cardiac conditions in pregnant patients.
Purpose:
- To evaluate the safety and efficacy of percutaneous mitral valvuloplasty (PMV) with the Inoue balloon in pregnant women with severe mitral stenosis.
- To assess the impact of PMV on maternal hemodynamics, clinical status, and pregnancy outcomes.
- To determine the safety profile for fetal exposure to the procedure and its potential complications.
Summary:
- Seven pregnant women with severe mitral stenosis underwent Inoue balloon valvuloplasty, with most procedures performed before 30 weeks gestation.
- The intervention significantly reduced mitral gradient and increased valvular area, improving pulmonary hypertension and maternal NYHA class.
- Maternal and fetal outcomes were favorable, with no mortality, minimal procedural complications, and most pregnancies reaching term.
Impact:
- Percutaneous mitral valvuloplasty with the Inoue balloon is a safe and effective treatment for severe mitral stenosis in pregnant women.
- The procedure offers significant clinical improvement and hemodynamic benefits without increasing maternal or fetal mortality.
- This technique provides a valuable therapeutic option, improving quality of life and pregnancy outcomes for this high-risk patient group.
Related Concept Videos
Mitral Valve Prolapse I: Introduction
Mitral Valve Prolapse II: Assessment and Management
Mitral Valve Prolapse III: Nursing Management
Mitral Regurgitation III: Medical Management
Mitral Stenosis I: Introduction
Mitral Stenosis III: Medical Management

