Guo Yong-Hong, Liu Qi-Ming, Qi Shu-Shan, Zhou Sheng-Hua
Department of GeriatricsSecond Xiangya Hospital, Central South University, Changsha, China.
Zhong Nan Da Xue Xue Bao Yi Xue Ban. 2007 Apr;32(2):337-40.
To evaluate the electrocardiographic characterizations of atrial contractions(AC) triggering paroxysmal atrial fibrillation(AF), and to explore the effects of AF prevention pacing on their electrocardiographic characterizations.
Twenty-four patients with the implantation of AF therapy pacemaker(Vitatron 900E) were analyzed by AC triggering paroxysmal AF with Holter monitoring in the study. AC compluing interval, compensatory pause and frequency 2 minutes before the AF or during the AC were compared between the induced paroxysmal AF group and noinduced paroxysmal AF group, and the preventive effect of AF on the post-PAC response program was investigated.
There was significant difference in the AC compluing interval [(352.3 +/-30.4) vs (421.8 42.5)ms], compensatory pause [(963 +/-109) vs (733 +/-124) ms], and frequency [(34.8 +/-18.9) vs (12.7 +/-8.7)/min] 2 minutes before the AF or during the AC in the induced paroxysmal AF group, compared with those in the noinduced paroxysmal AF group (all P<0.05). The AF of 7 patients were controlled by atrial overdrive pacing therapy, 17 patients by post-AC-response or/and post-exercise control therapy, 6 patients by the above therapy combining with cordarone (0.2g/d).
AC triggering paroxysmal AF is related to the compluing interval, compensatory pause and frequency 2 minutes before the paroxysmal AF or during the AC, AF prevention pacing may be helpful for the paroxysmal AF induced by AC.
评估触发阵发性心房颤动（AF）的心房收缩（AC）的心电图特征，并探讨预防房颤起搏对其心电图特征的影响。
本研究通过动态心电图监测，对24例植入房颤治疗起搏器（Vitatron 900E）的患者进行AC触发阵发性房颤分析。比较诱发阵发性房颤组和未诱发阵发性房颤组在房颤发作前2分钟或AC期间的AC配对间期、代偿间歇和频率，并研究房颤预防起搏对早搏后反应程序的预防效果。
诱发阵发性房颤组在房颤发作前2分钟或AC期间的AC配对间期[（352.3±30.4）与（421.8±42.5）ms]、代偿间歇[（963±109）与（733±124）ms]和频率[（34.8±18.9）与（12.7±8.7）/分钟]与未诱发阵发性房颤组相比，差异均有统计学意义（均P<0.05）。7例患者的房颤通过心房超速起搏治疗得到控制，17例通过AC后反应或/和运动后控制治疗，6例通过上述治疗联合可达龙（0.2g/d）。
AC触发阵发性房颤与阵发性房颤发作前2分钟或AC期间的配对间期、代偿间歇和频率有关，预防房颤起搏可能有助于AC诱发的阵发性房颤。
