Inappropriate sinus tachycardia (IST) is a condition that causes an abnormally high resting heart rate. WebMD explains the causes, symptoms, and treatment of IST.

Tachycardia describes when the heart beats faster than normal. Sinus rhythm with tachycardia occurs when the sinus node fires electrical impulses abnormally quickly. Inappropriate sinus ...

Background Inappropriate sinus tachycardia (IST) is characterized by persistent and disproportional elevation of heart rate (HR). Ivabradine has been successfully used in some patients. Methods ...

Sinus tachycardia is frequently encountered in clinical practice but is often overlooked. It comprises four distinct rhythm disturbances namely normal sinus tachycardia, inappropriate sinus ...

Inappropriate sinus tachycardia, which is rare, occurs when the heart rate increases for no apparent reason. It could be the result of a nerve-signaling problem in the heart.

Most types of tachycardia have a reentry mechanism (), and they are classified according to the location of the reentry circuit ().Approximately 60 percent of cases are due to an atrioventricular ...

Junctional tachycardia occurs when your heart rate is faster than normal due to an issue in the upper and lower heart chambers. Learn about this condition and its treatment today.

Twenty-four patients (18 women, 41 ± 13 year old) were diagnosed with IST in our institution. Eight patients (67%) received treatment for hypertension (angiotensin-converting enzyme inhibitors ...