PMC9650383_01
Electrocardiogram: ectopic atrial rhythm, left anterior hemiblock, signs of left ventricular hypertrophy.
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F1
LV hypertrophy (Figure 1). Laboratory tests showed troponine T of 20 pg/ml (URL of 14 pg/ml), N-terminal pro B-type natriuretic peptide (NT-proBNP) of 582 pg/ml (URL <150 pg/ml).
Two-dimensional trans-thoracic echocardiogram continuous wave Doppler representation of LVOT peak gradient at rest and during Valsalva maneuver.
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F2
There was a clear SAM of the AML and an LVOT gradient of 56 mmHg at rest rising to 136 mmHg during the Valsalva maneuver (Supplementary Video 1 and Figure 2).