超声洁治对心脏起搏系统影响的体外实验和临床观察

摘要

Objective To evaluate the effect of ultrasonic scaling on the cardiac pacing system. Methods In this in vitro study, the pulse generator was connected with the atrial and ventricular electrode wires by a bipolar mode to form a loop. When the ultrasonic scaling was operated about 25 - 30 cm away from the loop, the intracardiac electrocardiography and parameters of the pacemaker were recorded and compared before and after the ultrasonic scaling,and also at different powers during the process. In clinical trials, 11 patients with implanted pacemaker were selected to accept ultrasonic scaling. Surface electrocardiogram, intracavitary electrocardiogram and pacemaker parameters were compared before,during and after the ultrasonic scaling. Results The results of in vitro study did not show any significant difference for the intracardiac electrocardiogram and parameters of pacemaker before and after ultrasonic scaling, and at different powers. Clinical results demonstrated that patients with implanted pacemaker did not present any discomfort reactions, such as dizziness, palpitations or nausea. There was no interference for the surface and intracavitary electrocardiogram records at different times, as well as the setting of pacemaker parameters.rnConclusions Ultrasonic scaling has no interference with cardiac pacing system,and may be safely applied tornthe patients with implanted pacemakers.%目的 观察超声洁治过程对心脏起搏系统的影响.方法 体外实验将脉冲发生器用双极的联接方式将心房和心室电极联接形成回路,在回路旁25～30 cm处开启超声洁牙机,比较超声洁牙机开启前后以及在不同功率下超声洁治对起搏器的腔内心电图及参数的影响.临床实验选择11例非起搏依赖的心脏起搏器植入患者进行超声洁治,比较洁治前、中、后3个时间段的体表心电图、腔内心电图以及起搏器的参数设置变化.结果体外实验显示超声洁牙机开启前后以及不同功率下,心脏起搏器的腔内心电图及参数均无明显差异；临床研究发现:植入心脏起搏器患者在超声洁治过程中皆无头晕、心悸或恶心等不适反应,在不同时间段获得的体表及腔内心电图记录均未发现干扰现象,起搏器的设置参数也未发生改变.结论 超声洁治对心脏起搏系统无明显干扰,心脏起搏器植入患者可接受超声洁治治疗.