预激综合征最重要的临床意义在于易患阵发性室上性心动过速。由于旁道的参与,心动过速阳性质和结局有别于其它类型的室上性心动过速(简称室上速)。预激综合征的“室上速”,实际上并非真正的室上速,应称为房室折返性心动过速(AVRT),折返通路涉及心房肌、心室肌、正常房室传导系统及房室旁道。WPW综合征是最常见的由房室旁道(前称Kent束)引起的一种预激综合征。极少数预激病人心电图表 The most important clinical significance of Wolff-Parkinson’s syndrome lies in the risk of paroxysmal supraventricular tachycardia. Because of the involvement of the bypass, the nature and outcome of tachycardia differ from other types of supraventricular tachycardias (SVS). The “supraventricular tachycardia” of Wolff-Parkinson-White syndrome is not actually a real supraventricular tachycardia and should be referred to as atrioventricular reentrant tachycardia (AVRT), which involves the atria, ventricular muscles, normal atrioventricular conduction system, Room bypass. WPW syndrome is the most common pre-excitation syndrome caused by atrioventricular bypass (formerly known as Kent bundle). Very few pre-emptive ECG