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10例病态窦房结综合征患者,呈窦性心律,安装心室按需型埋藏式起搏器(ⅤⅤⅠ:心室感知、心室起搏R波抑制型)后。经24小时连续动态血压测试,并用改进的Oxfored系统进行心电图描记,以观察其起搏情况与血压、症状的相互关系。在研究观察期间,有5例患者有头昏与昏厥前期症状,另5例无症状。这两组患者起搏开始时都伴有动脉压的降低,而有症状组的血压下降较明显。这些患者血压的恢复是压力调节反射活动的结果,使血压的回升反射活动,延迟到
10 patients with sick sinus syndrome, sinus rhythm was installed on-demand ventricular ventricular pacemaker (Ⅴ Ⅴ: ventricular perception, ventricular pacing R wave inhibition). After 24 hours continuous ambulatory blood pressure test, and with improved Oxfored system electrocardiogram to observe the relationship between pacing and blood pressure, symptoms. During the study period, 5 patients had dizziness and pre-syncope symptoms and the other 5 were asymptomatic. The onset of pacing in both groups was accompanied by a decrease in arterial pressure, while the symptomatic group had a significant drop in blood pressure. The recovery of blood pressure in these patients is the result of stress-regulating reflex activity, which causes the reflex activity of blood pressure to be delayed until