Mitral stenosis differential diagnosis
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Cafer Zorkun, M.D., Ph.D. [2];Yamuna Kondapally, M.B.B.S[3]
Overview
The possible causes, and other conditions that may present similarly, should be evaluated for when there is suspicion of mitral stenosis.
Differentiating Mitral Stenosis from other Diseases
Mitral stenosis must be differentiated from the following:
| Diseases | History and Symptoms | Physical Examination | Murmur | Diagnosis | Other Findings | |||
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| ECG | CXR | Echocardiogram | Cardiac Catheterization | |||||
| Mitral Stenosis | • Diastolic murmur
• Low pitched • Opening snap followed by decrescendo-crescendo rumbling murmur • Best heard with the bell of the stethoscope at apex at end-expiration in left lateral decubitus position • Intensity increases after a valsalva manuever, after exercise and after increased afterload (eg., squatting, isometric handgrip) |
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| Mitral Regurgitation | • Holosystolic murmur
• High pitched, blowing • Radiates to axilla • Best heard with the diaphragm of the stethoscope at apex in left lateral decubitus position • Intensity increases with hand grip or squatting • Decrease in intensity on standing or valsalva maneuver |
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| Atrial Septal Defect | ||||||||
| Left Atrial Myxoma | ||||||||
| Prosthetic Valve Obstruction | ||||||||
| Cor Triatriatum | ||||||||
| Congenital Mitral Stenosis | ||||||||
| Supravalvular Ring Mitral Stenosis | ||||||||