双房同步起搏体表心电图表现为P波时限短、负向或正负双向,PR间期相应缩短。
The surface body electrocardiogram(ECG) manifestations of biatrial pacing are that P wave duration shortens, the polarity of P wave changes to negative, PR interval gets shorter correspondingly.
多次复发者复发间期逐渐缩短。
The interval without tumor burden turned shorter after multiple recurrences.
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