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A 33-year old male patient, with Marfan's syndrome, reported symptoms of orthostatic intolerance and fatigue as a longstanding problem. Orthostatic cardiovascular examination showed poor orthostatic tolerance, with a rise in heart rate and a fall in arterial blood pressure and cerebral blood flow velocity. Self-discovered physical counterpressure manoeuvers improved symptoms, related to a substantial...
To assess the cerebral blood flow velocity during the first minute of head-up tilt in patients with postural tachycardia syndrome (POTS) or neurally-mediated reflex syncope compared with patients with dizziness.We evaluated 120 patients selected from 470 patients who underwent head-up tilt testing: 40 with POTS, 40 with typical neurally-mediated reflex syncope and 40 who complained of dizziness with...
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