Guideline Recommendations for Diagnosis and Management of Mitral Stenosis

Diagnostic Evaluation

Initial Imaging

Measurement Caveats

Indications for Intervention

Symptomatic Patients

Asymptomatic Patients

Choice of Intervention

Percutaneous Mitral Balloon Commissurotomy (PMBC)

Surgical Intervention

Special Populations

Pregnancy

Non‑Cardiac Surgery

Key Pitfalls

Medical Management for Mitral Stenosis

Symptom Management

• The European Society of Cardiology recommends diuretics for symptom relief when edema or congestion is present in patients with mitral stenosis 5, 6
• Heart rate control with beta-blockers or calcium channel blockers is effective for symptom relief in patients with mitral stenosis and atrial fibrillation 7
• The European Society of Cardiology recommends digoxin for heart rate control specifically in patients with atrial fibrillation and mitral stenosis 5, 6

Anticoagulation Therapy

• Anticoagulation is indicated in patients with mitral stenosis who have a history of systemic embolism 8
• Anticoagulation is also indicated in patients with mitral stenosis who have dense spontaneous contrast in the left atrium on echocardiography 5, 8
• Anticoagulation is indicated in patients with mitral stenosis who have an enlarged left atrium (M-mode diameter >60 mL/m²) 5, 6

Monitoring and Follow-up

• The American College of Cardiology and American Heart Association recommend follow-up every 3-5 years for asymptomatic severe mitral stenosis (MVA ≤1.0 cm²) 5, 6
• The European Society of Cardiology suggests follow-up every 2-3 years for asymptomatic severe mitral stenosis (MVA ≤1.0 cm²) 5, 6
• Regular echocardiographic assessment is essential to monitor disease progression in patients with mitral stenosis 5, 6

When to Consider Intervention

• Percutaneous mitral balloon commissurotomy (PMBC) is the first-line intervention for symptomatic severe rheumatic mitral stenosis with favorable valve morphology 5, 6, 9
• Indications for intervention in asymptomatic patients include elevated pulmonary artery systolic pressure >50 mmHg 7, 10
• Indications for intervention in asymptomatic patients include new-onset atrial fibrillation 7, 10
• Indications for intervention in asymptomatic patients include high risk of thromboembolism (history of embolism, dense spontaneous contrast) 6, 8

Common Pitfalls and Caveats

• Medical therapy alone is palliative and does not prevent disease progression; regular monitoring for development of indications for intervention is essential in patients with mitral stenosis 5, 8
• Patients with mitral stenosis and atrial fibrillation should be kept on vitamin K antagonists and not receive NOACs 8