Objective To analyze the dynamic electrocardiogram characteristics in female patients with coronary heart disease(CHD) complicated with low bone mineral density(BMD). Methods 112 female CHD patients admitted into our hospital from January 2017 to September 2018 were selected as observation group

and 106 cases of non CHD with health examination were selected as control group. The anterior and posterior lumbar vertebrae L1～4

the left femoral neck and the left hip bone mineral density of all selected cases were detected by Lunar Prodigy dual energy X-ray absorptiometry(DEXA). All the cases received 24 hour dynamic electrocardiogram. The results of bone density and incidence of low bone density were compared between the two groups. The type and distributions of abnormal ECG and heart rate variability(HRV) were analyzed. Results There were 87 cases of low BMD in the observation group

66 cases in control group with significant difference between the two groups(p<0.05); The significant differences were found in the comparison of the incidence rate of cardiac arrhythmia

ischemic ST-T changes and heart rate variability between the two groups(p<0.05). Conclusions The incidence of low bone density and cardiac arrhythmia in female CHD patients significantly increases

and their heart rate variability decreases significantly. It should be advocated that the female CHD patients should take the bone mineral density test as early as possible in order to decrease the incidence of low BMD and arrhythmia

to prevent bone fractures

and to improve their life qualities.