Introduction
Mitral stenosis refers to abnormal narrowing of the mitral valve.Murmur
Sound: Mid-diastolic murmur, opening snap Loudest region: Mitral area (5th intercostal space, mid-clavicular line) Accentuation: Expiration, lateral decubitus positionMid-diastolic murmur. Source: University of Michigan Murmur library
Causes
- Rheumatic fever – by far the commonest cause
- Senile degeneration
- Infective endocarditis
Differential diagnosis
- Tricuspid stenosis
- Atrial myxoma
Investigations
- Echocardiogram
- ECG: may show atrial fibrillation and p-mitrale (broad, bifid P waves)
- Chest x-ray
- Blood cultures, if considering infective endocarditis
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