Masterson M M, Maloney J D, Tuzcu E M, Wilkoff B L, Emre A, Vanerio G, Simmons T W, Morant V A, Castle L W
Department of Cardiology, Cleveland Clinic Foundation, Ohio 44195.
Cleve Clin J Med. 1990 Jul-Aug;57(5):433-6. doi: 10.3949/ccjm.57.5.433.
In order to analyze the impact of different polarity and electrode designs on the acute pacing and sensing characteristics of pacemaker leads, 80 patients with complete heart block or sinus node dysfunction undergoing pacemaker implantation received eight different leads from five manufacturers. Once the leads were positioned, volt and current thresholds, P wave, peak-to-peak, and slew rate were assessed prospectively. There was no statistically significant difference between acute pacing thresholds, sensing characteristics, or unipolar and bipolar pacing thresholds. Active fixation leads allow atrial mapping and lead placement in areas generally inaccessible to tined tip leads. This is an advantage, especially for patients with a history of open heart surgery.
为分析不同极性和电极设计对起搏器导线急性起搏和感知特性的影响，80例接受起搏器植入的完全性心脏传导阻滞或窦房结功能障碍患者从5家制造商处获得了8种不同的导线。导线定位后，前瞻性评估电压和电流阈值、P波、峰峰值和斜率。急性起搏阈值、感知特性或单极和双极起搏阈值之间无统计学显著差异。主动固定导线允许进行心房标测，并可将导线放置在有齿尖端导线通常无法到达的区域。这是一个优势，尤其对于有心脏直视手术史的患者。
