<prompt> Propanolol is useful in the treatment of all of the following EXCEPT:AnginaPaial atrioventricular blockIdiopathic hyperophic subaoic cardiomyopathyFamilial tremor  <response>: b blockers can be used in - HTNMI Angina Cardiac arrythmias Pheochromocytoma Thyrotoxicosis Migraine Anxiety Essential tremor Glaucoma Hyperophic obstructive cardiomyopathy. 