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A 64-year-old woman with a history of syncope when standing associated with urinary incontinence, prolonged recovery and subsequent exhaustion, was referred to our service for evaluation.
She underwent a 20:15 glyceryl trinitrate head-up tilt test. This was unremarkable in the first 20 min but 90 s after the administration of glyceryl trinitrate her blood pressure fell from 125/82 mm Hg to unrecordable at 120 s …
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