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目的左侧房室旁道患者,射频消融术前于左、右心室心尖部在相同刺激条件下行S1S2早搏刺激至旁道不应期,测量旁道室房传导时间及旁道不应期的相关数据,探讨旁道的逆传特性有何异同。方法选取2011年10月至2012年09月于贵州省人民医院心导管室接受射频消融术的室上性心动过速患者,入选患者经心内电生理检查为左侧房室旁道,射频消融术后心内电生理检查房室结无室房逆传功能者共44例为研究对象。结果不同性别者左、右心室起搏下旁道不应期比较,差异无统计学意义(p>0.4及p>0.4);不同性别者左、右心室起搏下旁道室房传导时间比较,差异无统计学意义(p>0.8及p>0.2)。合并显性房室旁道与单纯隐匿性房室旁道左、右心室起搏下旁道不应期比较,差异无统计学意义(p>0.4及p>0.3);合并显性房室旁道与单纯隐匿性房室旁道左、右心室起搏下旁道室房传导时间比较,差异无统计学意义(p>0.7及p>0.2)。所有患者左、右心室起搏下旁道不应期比较,差异无统计学意义(p>0.5);所有患者左、右心室起搏下旁道室房传导时间比较,差异有统计学意义(p<0.001),且右心室起搏旁道室房传导时间较左心室起搏明显延长。结论左侧房室旁道患者,男女性别之间,旁道不应期及旁道室房传导时间比较无明显差异;合并显性房室旁道与单纯隐匿性房室旁道之间,旁道不应期及旁道室房传导时间比较无明显差异;所有患者左、右心室起搏下旁道不应期比较无明显差异,旁道室房传导时间右心起搏较左心起搏明显延长。
The purpose of the left atrioventricular bypass, preoperative radiofrequency ablation in the left and right ventricular apex in the same stimulus conditions S1S2 premature beats to the paracancerous refractory period, measurement of the bypass room room conduction time and paracancer refractory period related Data, to explore the similarities and differences between the retrograde characteristics of the bypass. Methods Patients with supraventricular tachycardia who underwent radiofrequency ablation in the cardiac catheterization room of Guizhou Provincial People’s Hospital from October 2011 to September 2012 were enrolled. The patients underwent electrophysiological examination of left atrioventricular bypass and radiofrequency catheter ablation Postoperative electrophysiological examination of atrioventricular nodal retrograde function in 44 cases as the research object. Results There was no significant difference in paracamental refractory period between left and right ventricular pacing in different genders (p> 0.4 and p> 0.4) , The difference was not statistically significant (p> 0.8 and p> 0.2). There was no significant difference between the two groups (p> 0.4 and p> 0.3) in patients with merger atrioventricular parneclampsia and simple occlusion There was no significant difference in the conduction time between the left ventricle and the right ventricular pacing under the pathways of bypass and simple occlusion (p> 0.7 and p> 0.2). All patients with left and right ventricular pacing under the paracamental refractory period comparison, the difference was not statistically significant (p> 0.5); left and right ventricular pacing in all patients under the bypass room conduction time, the difference was statistically significant ( p <0.001), and the right ventricular pacing room conduction time than left ventricular pacing was significantly prolonged. Conclusions The left atrioventricular patency patients, gender, paracancer and side passage room conduction time was no significant difference; combined with significant atrioventricular and simple occult atrioventricular bypass Passage should not correspond to the passage of time between the bypass room and no significant difference; all patients left and right ventricular pacing under the paracamental refractory period was no significant difference in the bypass room room conduction time right ventricular pacing than left ventricular pacing Significantly longer.