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评价自主神经功能的变化在老年特发性心房颤动 (IPAF)发作中的作用。选取我院住院的未服用抗心律失常药物的老年IPAF患者 5 0例 (IPAF组 )和无心律失常病史的老年人 5 0例 (对照组 )进行 2 4h动态心电图检测和HRV分析。结果 :和对照组相比 ,IPAF组LF/HF增高 (P <0 .0 5 ) ,其余各指标均有不同程度降低 ,其中SDNN、SDANN明显降低P <0 .0 1。结论 :老年IPAF患者的HRV降低 ,提示心脏自主神经系统功能紊乱在老年患者IPAF的发作中起重要作用。
To evaluate the role of autonomic nervous system changes in the episode of senile idiopathic atrial fibrillation (IPAF). A total of 50 elderly IPAF patients (IPAF group) and 50 elderly patients without a history of arrhythmia (control group) were enrolled in our hospital. The 24 h ambulatory ECG and HRV analysis were performed. Results: Compared with the control group, the LF / HF in IPAF group was significantly higher (P <0.05), while the other indexes were all decreased to different extents. SDNN and SDANN were significantly lower than those in control group (P <0.01). CONCLUSIONS: The decreased HRV in elderly patients with IPAF suggests that cardiac autonomic nervous system dysfunction may play an important role in the onset of IPAF in elderly patients.