Objective To observe the circadian rhythm of blood pressure in elderly patients with heart failure and evaluate the role of ambulatory blood pressure monitoring in heart failure. Methods One hundred and eight elderly patients with heart failure were collected and the cardiac function of these patients were assessed according to New York Heart Association ( NYHA). Eight three cases, in which patients with underlying heart disease had no heart failure, were selected as the controls. Then 24 h ambulatory blood pressure monitoring (24 h ABPM)was performed and several blood pressure parameters in different groups were analyzed. Results In elderly patients with heart failure, the incidence of circadian thythm disappearance was significantly increased (P<0. 05). Furthermore, the incidence of rhythm disappearance in patients with cardiac function Ⅲ or Ⅳ was higher than that in patients with cardiac function Ⅱ (P < 0. 05 ). Conclusion The incidence of abnormal blood pressure rhythm is increased in elderly patients with heart failure, which is correlated with the severity of heart failure. Ambulatory blood pressure monitoring can be used as an indicator of the severity of heart failure.
elderly cardiac dysfunctionambulatory blood pressure monitoringcircadian rhythm of bloodvariation characteristicsprognosis