Inappropriate Sinus Tachycardia
نویسندگان
چکیده
منابع مشابه
Ablation of Inappropriate Sinus Tachycardia
RESULTS A total of 153 patients were included. Their mean age was 35.18 10.02 years, and 139 (90.8%) were female. All patients had failed to respond to maximum tolerated doses of pharmacological therapy (3.5 2.4 drugs). Mean baseline heart rates averaged 101.3 16.4 beats/min according to electrocardiography and 104.5 13.5 beats/min according to 24-h Holter monitoring. Two electrophysiological s...
متن کاملInappropriate sinus tachycardia: focus on ivabradine.
Inappropriate sinus tachycardia (IST) is an incompletely understood condition, characterised by an elevation in heart rate (HR) accompanied by wide ranging symptoms in the absence of an underlying physiological stimulus. The condition often takes a chronic course with significant adverse effects on quality of life. Currently, there is no effective treatment for IST. Beta-blockers, generally con...
متن کاملPostural Tachycardia Syndrome and Inappropriate Sinus Tachycardia: Role of Autonomic Modulation and Sinus Node Automaticity
BACKGROUND Inappropriate sinus tachycardia (IST) and postural tachycardia syndrome (POTS) are 2 disorders characterized by sinus tachycardia. It is debated whether the pathophysiology of IST and POTS results from abnormal autonomic regulation or abnormal sinus node function. We hypothesized that intrinsic heart rate (IHR) after autonomic blockade would be increased in patients with IST but not ...
متن کاملIvabradine as a treatment option for inappropriate sinus tachycardia.
Inappropriate sinus tachycardia or non paroxysmal tachycardia is characterised by persistent cardiac arrhythmias, with sinus P waves, and an exaggerated response to a minimal physical effort. It usually appears in young women and manifests through palpitations, dyspnoea, fatigue, and intolerance to exercise. After excluding other types of tachycardia and discarding secondary symptoms of other a...
متن کاملMechanism of 'inappropriate' sinus tachycardia. Role of sympathovagal balance.
BACKGROUND "Inappropriate" sinus tachycardia (IST) is an uncommon and poorly defined atrial tachycardia characterized by inappropriate tachycardia and exaggerated acceleration of heart rate with "normal" P wave. The mechanism of this tachycardia is unknown. The purpose of the present study was to determine the role of autonomic balance in the genesis of IST. METHODS AND RESULTS Six female pat...
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ژورنال
عنوان ژورنال: Journal of the American College of Cardiology
سال: 2013
ISSN: 0735-1097
DOI: 10.1016/j.jacc.2012.07.074