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Case 37: Severe Dyspnea and Preload Failure 

Case 37: Severe Dyspnea and Preload Failure
Case 37: Severe Dyspnea and Preload Failure

Peter Novak

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date: 22 October 2020

An older patient presents with fatigue, exertional dyspnea, exertional chest tightness, and palpitations. Cardiopulmonary exercise testing (CPET) showed low biventricular filling pressure and poor peripheral oxygen extraction as a cause of dyspnea, consistent with preload failure. Tilt test demonstrated postural tachycardia syndrome (POTS), neuropathic form.

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