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患者男性,55岁,因反复发作心悸、胸闷痛2年,临床诊断为PSVT。入院后心电图检查诊断为:1.窦性心律,2.I°AVB,3.房室结折返性心动过速(AVNRT)伴下传文氏(附图,见第171页)。讨论1.AVNRT产生的和持续尽管许多学者已作了大量研究,至今却不能直接证明其折返环的存在。因此只能根据折返机理和部位作间接推断。AVNRT常在房室传导延缓的基础上,被一房性期前激动所诱发,激动在合适的折返条件下,假定由快、馒双
Male patient, 55 years old, due to recurrent heart palpitations, chest pain for 2 years, the clinical diagnosis of PSVT. ECG diagnosis after admission diagnosis: 1. Sinus rhythm, 2. I ° AVB, 3. Atrioventricular nodal reentrant tachycardia (AVNRT) with the next pass Wenshi (with photos, see page 171). DISCUSSION 1. AVNRT Produced and Sustained Although many scholars have done a lot of research, so far can not directly prove the existence of the reentry loop. Therefore, only based on the mechanism and location of reentry indirect inference. AVNRT is often delayed in the atrioventricular conduction, is induced by atrial pre-excited, excited in the appropriate conditions of reentry, assumed by the fast, double-double