<prompt> All are the high-risk factors for sudden cardiac death in hyperophic cardiomyopathy except:Family history of sudden cardiac deathNon-sustained Ventricular tachycardia on cardiac monitoringLeft ventricular septal thickness of 2-3cmAbnormal drop in systolic blood pressure  <response>: High risk factors for Sudden cardiac death in HOCM -Ho cardiac arrest, sustained ventricular tachycardia -Syncope non-vagal -Spontaneous non sustained ventricular tachycardia -LV thickness 3 cm -Abnormal fall in SBP 