Epidemiology and definition of inappropriate sinus tachycardia.

Autor: Pellegrini, Cara, Scheinman, Melvin, Pellegrini, Cara N, Scheinman, Melvin M
Zdroj: Journal of Interventional Cardiac Electrophysiology; Jun2016, Vol. 46 Issue 1, p29-32, 4p
Abstrakt: Inappropriate sinus tachycardia (IST) is a clinical syndrome lacking formal diagnostic criteria. It is generally defined as an elevated resting heart rate (HR; >90-100 bpm) with an exaggerated response to physical or emotional stress and a clearly sinus mechanism. Clinical manifestations are broad from a complete lack of symptoms to incapacitating incessant tachycardia. Now understood to be relatively prevalent, it is observed to have a generally benign prognosis, though symptoms may persist for years. Whether IST is a single discrete entity or a heterogeneous condition with overlap to other syndromes such as postural orthostatic tachycardia syndrome remains a matter of debate. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index