复合感知传感器频率适应性起搏的临床研究

目的研究日常活动和外界干扰时,体动和每分通气量复合感知传感器频率适应性起搏的频率应答反应。方法15例植入起搏器的心脏变时功能不全患者在复合感知、每分通气量感知和体动感知下,分别作上/下楼和拍击试验,并与15例正常窦房结变时功能者作比较。结果体动传感器组下楼和拍击试验时心率增加显著快于正常对照组,每分通气量传感器组上/下楼启动时心率增加显著慢于对照组,而复合感知传感器组的频率变时反应与对照组相似。结论体动和每分通气量复合感知起搏器的频率应答反应与正常窦房结最接近。

The rate-adaptive response study of integrated sensor pacemakers

Objective To observe the rate-adaptive response of dual sensor pacemakers integrated with activity sensor and minute ventilation sensor.Methods Fifty patients with chronotrepic incompetence were implanted with pacemakers of integrated sensor.The patients with pacemakers implanted were arranged to take upstairs test,downstairs test and tapping test under the monitor of integrated sensor,minute ventilation sensor and activity sensor respectirely.The rate-adaptive responses were tracked down every 15 seconds with remote heart rate monitor.The results were compared with the control group patients with normal sinal chronotropic function(n=15).Results In activity sensor group,pacing rates were significantly higher than the normal control group in downstairs test and tapping test.In minute ventilation sensor group,pacing rates increasement was significantly slower in the beginning of upstairs test.Pacing rates of integrated group were similar to the normal control group in upstairs and downstairs tests.Conclusion The rate-adaptive pacing response of dual sensor integrated with activity sensor and minute ventilation sensor,which is mostly close to the normal chronotropic response,better than that of single sensor.