ABSTRACT
Objective To study the relationship between basal ganglia ischemic stroke (BGIS) and paroxysmal atrial fibrillation (PAF) due to abnormal vagus nerve tension.Methods A total of 1483 elderly ischemic stroke patients who underwent head CT or MRI in our hospital from January 2013 to December 2014 were divided into BGIS group (n=1045) and non-BGIS group (n=438).Their heart rate variability and frequency parameters (SDNN,RMSSD,PNNS0) were recorded.The LF/HF ratio was analyzed.Results The incidence of PAF was significantly lower in ＜69 years old patients of BGIS group than in those of non-BGIS group (P＜0.05) and was significantly higher in ≥70 years old patients of BGIS group than in those of non-BGIS group (P＜0.05).The incidence of ischemic stroke with PAF was significantly higher in BGIS group than in nonBGIS group (56.8％ vs 41.0％,P=0.031).The incidence of PAF was significantly higher in ＞79 years old patients of BGIS group than in those of non-BGIS group (P＜0.05).The incidence of AF increased with the increasing age of ischemic patients between the two groups.The SDNN,RMSSD,PNN50 were significantly higher while the LF/HF ratio was significantly lower in nonPAF patients of BGIS group than in those of non-BGIS group (P＜0.05).Conclusion The incidence of BGIS shows a tendency to increase.PAF is prone to occur in BGIS patients.The vagus nerve tension is increased in BGIS patients with PAF.