Objective the purpose of the study was to analyze the clinical effect and the safety of external direct current cardioversion on pregnancy patients with paroxysmal supraventricular tachycardia.

目的对体外直流电复律治疗阵发性室上性心动过速的妊娠患者的临床疗效及安全性进行研究。

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Objective: To explore the regularity and clinical significance of t wave abnormalities after paroxysmal supraventricular tachycardia (PSVT).

目的：探讨阵发性室上性心动过速(PSVT)后T波变化规律及临床意义。

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Objective: To investigate the clinical significance of newly acquired negative t waves after termination of paroxysmal supraventricular reentrant tachycardia with narrow QRS complex.

目的：研究阵发性折返性室上性窄qrs波心动过速终止后倒置T波的临床意义。

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