Evaluation of suspected mitral stenosis uses Doppler echocardiography, with additional investigations guided by rhythm findings and planned intervention.
Imaging and pre-intervention assessment
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Doppler echocardiography is the investigation of choice for suspected mitral stenosis.
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Cardiac catheterisation may be required when surgery or valvuloplasty is being considered, to screen for coexisting conditions such as coronary artery disease.
Electrocardiographic findings
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The electrocardiogram may show atrial fibrillation or bifid P waves.
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Bifid P waves, termed P mitrale, are associated with left atrial hypertrophy.