cardiacarrhythmia-資料下載頁
2025-07-15 17:55本頁面
【正文】 to the refractory state of the bundle of cycle is then repeated(and known as a Wenckebach phenomenon) 二度房室傳導(dǎo)阻滯 Ⅰ 型： (1) PR間期逐漸延長 ， 直至 QRS波群脫落； (2) 相鄰的 RR間期逐漸縮短 ， 直至 P波后 QRS波群脫落； (3) 包含 QRS波群脫落的 RR間期比兩倍 PP間期短； (4) 最常見的房室傳導(dǎo)比例為 4:3或 5:4 Mobitz Ⅱ （ periodic block） Most beats are conducted with a constant PR interval,but occasionally there is an atrial contraction without a subsequent ventricular contraction. 二度房室傳導(dǎo)阻滯 Ⅱ 型： (1)下傳的搏動中， PR間期固定，可正常亦可延長； (2)有間歇性的 QRS波群脫落，常呈 2: 1或 3:1 Third degree(plete) atrioventricular block Complete heart block occurs when atrial contraction is normal but no beats are conducted to the atrial rhythm,unless an accessory pathway that conducts antegrade is present. 三度房室傳導(dǎo)阻滯 ， RR間隔相等， P波與 QRS波群無關(guān) QRS波頻率 。阻滯部位高者， QRS波群呈室上性；阻滯部位較低者，QRS波群增寬 Third degree(plete) atrioventricular block Nursing diagnoses Activity intolerance PC Anxiety
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