Syncope is a common condition. Tilt testing with sublingual nitroglycerin (TT-TNT) provides a test with good specificity and positivity rate in young and old patients. Its use in hypertensive patients ...

In the absence of structural heart disease (including a normal ECG), syncope is most often of neurally mediated reflex origin or orthostatic hypotension. As a rule, reflex etiologies predominate in ...