Flutter-Like P Waves in a Case of Atrioventricular Reciprocating Tachycardia

房室迴繞性頻脈以罕見之鋸齒狀撲動波形呈現

鄭凱鴻(Kai-Hung Cheng) ； 朱志生(Chih-Sheng Chu) ； 李坤泰(Kun-Tai Lee) ； 李碩粲(Shuo-Psan Lee) ； 蘇河名(Ho-Ming Su) ； 林宗憲(Tsung-Hsien Lin) ； 許勝雄(Sheng-Hsiung Sheu) ； 賴文德(Wen-Ter Lai)

《The Kaohsiung Journal of Medical Sciences》 21卷8期 (2005/08) Pp. 377-382

摘要

典型之心房撲動之特色就是在心電圖Ⅱ，Ⅲ，aVF，及V1導極呈現鋸齒狀撲動波形。房室迴繞性頻脈之特色在於其逆傳性小的P波出現在QRS波完成之後。我們提出少見的一個62歲的房室迴繞性頻脈患者於頻脈發作時，以如此鋸齒狀撲動波形呈現於心電圖並討論房室迴繞性頻脈患者以鋸齒狀撲動波呈現於其心悸時所認證的心電圖隻可能機轉。

關鍵字

房室迴繞性頻脈 ； 心房撲動 ； 鋸齒狀撲動波

並列摘要

Typical atrial flutter is characterized by its sawtooth flutter wave in leads Ⅱ, Ⅲ, aVF, and V1. Atrioventricular reciprocating tachycardia is characterized by its small retrograde P wave after completion of QRS complex, where sawtooth flutter-like P waves are rarely seen in the electrocardiogram during atrioventricular reciprocating tachycardia. We report on a 62-year-old patient who presented the characteristic sawtooth flutter-like P waves in the electrocardiogram during attack of supraventricular tachycardia. By electrophysiologic study, the mechanism of his supraventricular tachycardia was atrioventricular reciprocating tachycardia using the left posterior lateral concealed accessory pathway for retrograde conduction. The accessory pathway was successfully ablated by radiofrequency ablation therapy.

並列關鍵字

atrioventricular reciprocating tachycardia ； atrial flutter ； sawtooth flutter wave