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Post-COVID Postural Orthostatic Tachycardia Syndrome and Inappropriate Sinus Tachycardia: Prevalence, Overlap, and Clinical Characteristics

 2026-05-01
JACC. Advances
PMID: 41932118
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What is the clinical question being addressed?

What are the clinical and hemodynamic differences between postural orthostatic tachycardia syndrome and inappropriate sinus tachycardia?

What is the main finding?

Inappropriate sinus tachycardia exhibits higher rates of hypertension, whereas postural orthostatic tachycardia syndrome and dual pathology exhibit higher rates of presyncope, cognitive impairment, and nausea.

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