房室双旁道伴房室结功能不良临床少见。本文报告房室双旁道伴房室结功能不良并发房室折返性心动过速(AVRT),治疗时消融仅有逆传功能的左侧旁道,保留具有递减传导功能的右侧旁道,随访18个月,无心动过速复发。1资料与方法1.1临床资料:患者,男性,38岁,发作性心悸7年,每次持续半小? Atrioventricular dual bypass with atrioventricular dysfunction clinically rare. This article reports atrioventricular dual bypass with atrioventricular node dysfunction associated with atrioventricular reentrant tachycardia (AVRT), the treatment of ablation only retrograde left bypass, retaining with reduced conduction right bypass, Follow-up 18 months, no recurrent tachycardia. 1 Materials and Methods 1.1 Clinical data: patients, men, 38 years old, onset of palpitations 7 years, each lasting for half a small?