RT Book, Section A1 Ananthasubramaniam, Karthik A2 Crawford, Michael H. SR Print(0) ID 1139745753 T1 Hypertrophic Cardiomyopathy T2 CURRENT Diagnosis & Treatment: Cardiology, 5e YR 2017 FD 2017 PB McGraw-Hill Education PP New York, NY SN 9781259641251 LK accesscardiology.mhmedical.com/content.aspx?aid=1139745753 RD 2024/03/29 AB ESSENTIALS OF CLINICAL DIAGNOSISNote: Not all criteria are needed for diagnosis of hypertrophic cardiomyopathy.Asymmetric hypertrophied nondilated ventricle with septal to posterior wall end-diastolic thickness ratio > 1.3 not explained by other etiologies.Ejection murmur that increases with Valsalva with or without concomitant mitral regurgitation murmur and preserved aortic second sound.Increased gradients causing obstruction across left ventricular outflow tract and/or mid ventricle with characteristic late peaking “dagger”-shaped Doppler velocity profile.Mitral valve systolic anterior motion with varying degree of mitral regurgitation.Midsystolic aortic valve closure.Impaired diastolic function with decrease in tissue Doppler (early diastolic velocity [e’]) and longitudinal strain.