肾上腺素及心房起搏对家族性长QTU综合征的心电学影响

Familial Long QTU Syndrome: Increasing Doses of Epinephrine infuaion and (?) Atr(?) Incremental Pacing to Induce Early Afterdepolarization, U Wave, and Ventricular Tachycardia@@原图像不清晰

对一例家族性长QTV综合征患者,以肾上腺素增量输液及心房增频起搏,而引发早期后除极、U波及双向性室性心动过速。提示:交感神经活动增强在扭转性室性心动过速性晕厥的发作中具有重要的作用。

Increasing doses of epinephrine infusion and atrial incremental pacing to induce early afterdepolarization (EAD). U wave, and dual ventricular tachycardia in a patient with familial iong QTU syndrome were observed. This paper suggests that a heightened sympathetic tone plays a significant role in the genesis of TdP-induced syncope.