异丙肾上腺素与阿托品诱发阵发性室上性心动过速的对比观察

目的 对比观察异丙肾上腺素与阿托品试验在经食管心房调搏中诱发室上性心动过速的异同。方法 87例阵发性室上性心动过速病人,54例用异丙肾上腺素(Iso组,2μg/min静脉滴注),33例用阿托品(Atr组,0.04mg/kg静脉注射)后重复经食管心房调搏检查。结果 异丙肾上腺素与阿托品诱发成功率分别为83.3%、66.7%,前者略高于后者,但两者无显著差异(P>0.05);异丙肾上腺素诱发房室结折返性心动过速多于房室折返性心动过速,而阿托品诱发房室折返性心动过速多于房室结折返性心动过速,两者有显著差异(P<0.05)。结论 异丙肾上腺素、阿托品均可取得大致相同的阵发性室上性心动过速的诱发成功率,仅在诱发室上性心动过速的类型上有一定差异。

Comparison between isoprenaline and atropine in inducing paroxysmal supraventricular tachycardia

Objective To observe differences between isoprenaline (Iso) and atropine (Atr) inducing paroxysmal supraventricular tachycardia (PSVT) in transesophageal atrial pacing(TEAP). Methods Eightyseven patients with PSVT were divided into two groups. Fiftyfour patients were given Iso(2μg/min,dropping) and thirtythree patients were given Atr(0. 04mg/kg,injection). Before and after giving Iso and Atr respectively in the two groups TEAP was conducted to observe the successful rate of inducing PSVT. Results The inducing successful rate of Iso was 83. 3%,while that of Atr was 66. 7%. The both differences were unsignificant (P>0. 05). With Iso inducing,the case of atriovenricular nodal reentry tachycardia (AVNRT) was more than atrioventricular reentry tachycardia (AVRT). With Atr inducing,the case of AVRT was more than AVNRT. The both differences were sign ificant (P <0. 05). Conclusion Both Iso and Atr made same successful rate of inducing PSVT. Nevertheless ,both of those are different in the stype of inducing PSVT.