Syncope, chest pain, dyspnea, dizziness
Symptoms made worse by exertion
Increasing ventricular contractility further narrows outflow as volume is lost
Increasing ventricular contractility further narrows outflow as volume is lost
Harsh midsystolic crescendo-decrescendo murmur
Increases in intensity with valsalva and standing up
Due to decreased blood return to the heart
Decreases with squatting and Trendelenburg
Due to increased peripheral resistance increases aorta and reduces obstruction
Increases in intensity with valsalva and standing up
Due to decreased blood return to the heart
Decreases with squatting and Trendelenburg
Due to increased peripheral resistance increases aorta and reduces obstruction
Due to decreased blood return to the heart
Due to increased peripheral resistance increases aorta and reduces obstruction
Hypertrophic cardiomyopathy
Seizure
Restrictive cardiomyopathy
Breath-holding spell
Dilated cardiomyopathy
Hyperventilation syndrome
Mitral valve prolapse
Pregnancy 