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Vasovagally mediated hypotension and bradycardia are believed to be common,but difficult to diagnose,causes of syncope.Upright tilt-table testing has been proposed as a possible way to test for vasovagal episodes.This study investigated the clinical utility of this technique in the evaluation and management of patients with syncope of unknown origin. From this study we conclude that upright tilt-table testing combined with isoproterenol infusion is clinically useful in the diagnosis of vasovagal syncope and the evaluation of pharmacologic therapy. |
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