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Uptodate Reference Title
Continuous wave (CW) Doppler echocardiogram showing a 100 mmHg gradient across the left ventricular outflow tract (LVOT) in a patient with hypertrophic cardiomyopathy (HCM)
Continuous wave (CW) Doppler echocardiogram showing a 100 mmHg gradient across the left ventricular outflow tract (LVOT) in a patient with hypertrophic cardiomyopathy (HCM)
The continuous wave Doppler demonstrates the characteristic profile of dynamic left ventricular outflow tract obstruction; the peak velocity across the obstruction is 5 m/sec or a gradient of 100 mmHg. When severe, outflow tract signal can be difficult to distinguish between the mitral regurgitation that frequently accompanies systolic anterior motion of the mitral valve.