Leonelli Fabio, Bagliani Giuseppe, Boriani Giuseppe, Padeletti Luigi
Cardiology Department James A. Haley Veterans' Hospital, University South Florida, 13000 Bruce B Down Boulevard, Tampa 33612, FL, USA.
Arrhythmology Unit, Cardiology Department, Foligno General Hospital, Via Massimo Arcamone, 06034 Foligno (PG), Italy; Cardiovascular Diseases Department, University of Perugia, Piazza Menghini 1, 06129 Perugia Italy.
Card Electrophysiol Clin. 2017 Sep;9(3):383-409. doi: 10.1016/j.ccep.2017.05.002.
Atrial flutter, atrial tachycardias, and atrial fibrillation are the main sustained atrial tachycardias. Reentry, increased automaticity, and triggered activity are atrial arrhythmia's main mechanisms. Atrial flutter is the clinical and theoretical model of reentry. Its classification is based on the atrial chamber involved and the arrhythmia's anatomic path. Ablative procedures for atrial fibrillation have created several new reentrant tachycardias. Electrocardiography (ECG) identifies the site of origin of focal atrial tachycardias and the mechanism of these arrhythmias. ECG is fundamental in the diagnosis of atrial fibrillation and often allows understanding of its mechanism of origin and maintenance.
心房扑动、房性心动过速和心房颤动是主要的持续性房性心动过速。折返、自律性增加和触发活动是房性心律失常的主要机制。心房扑动是折返的临床和理论模型。其分类基于受累心房腔和心律失常的解剖路径。心房颤动的消融手术产生了几种新的折返性心动过速。心电图（ECG）可确定局灶性房性心动过速的起源部位及其心律失常机制。心电图在心房颤动的诊断中至关重要，常常有助于了解其起源和维持机制。
