Figure 2From: Valsalva maneuver, uncontrolled hypertension, asymmetric septal hypertrophy and dynamic outflow obstruction: a case reportLeft ventricular apical five-chamber view of showing that a dynamic left ventricular outflow tract obstruction was present, with a resting maximal instantaneous gradient of 55 mmHg (B: peak velocity, 3.7 m/s). With the Valsalva maneuver, the gradient increased to 114 mmHg (C: peak velocity, 5.3 m/s).Back to article page