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目的:探讨不同的右室心尖起搏比例对远期预后的影响。方法:对置入永久起搏器的患者进行随访分析,根据右室起搏累积百分比分为低起搏比例组和高起搏比例组。随访置入起搏器后新发房颤、心衰住院、死亡等。结果:入选的294例患者中,死亡18例。低起搏比例组新发房颤发生率低于高起搏比例组(4.2%对9.9%),低起搏比例组因心衰住院人数低于高起搏比例组(4.2%对7.9%)P<0.05。低起搏比例组左房内径、左室舒张末期内径和左室收缩末期内径均小于高起搏比例组,左室射血分数则显著高于高起搏比例组,P<0.05。在校正影响患者预后的其他危险因素后,心功能与右心室起搏比例相关。结论:右室心尖部起搏产生的不良后果与起搏比例相关。
Objective: To investigate the effect of different right ventricular apical pacing on long-term prognosis. Methods: Patients with a permanent pacemaker were followed-up analyzed and divided into low-pacing group and high-pacing group according to the cumulative percentage of right ventricular pacing. Follow-up after implantation of atrial fibrillation new onset of atrial fibrillation, heart failure hospitalization, death and so on. Results: Among the 294 selected patients, 18 died. The incidence of new-onset atrial fibrillation in the low-pacing group was lower than that in the high-pacing group (4.2% versus 9.9%), in the low-pacing group was lower than in the high-pacing group (4.2% versus 7.9% P <0.05. Left atrial diameter, left ventricular end-diastolic diameter, and left ventricular end-systolic diameter were significantly lower in the low-pacing group than in the high-pacing group, and left ventricular ejection fraction was significantly higher in the high-pacing group (P <0.05). After correcting for other risk factors that affect the prognosis of patients, cardiac function correlated with right ventricular pacing rate. CONCLUSIONS: The adverse consequences of RV apical pacing have been associated with pacing rates.