The divergence phenomenon of heart rate and stroke volume before dawn in serious heart failure
- VernacularTitle:重度充血性心力衰竭患者心率和每搏输出量的凌晨分离现象研究
- Author:
Hongjun ZHU
;
Shaoyu GONG
;
Wei SU
- Publication Type:Journal Article
- Keywords:
Heart failure,congestive;
Circadian rhythm;
Heart rate;
Stroke volume
- From:
Chinese Journal of Practical Internal Medicine
2006;0(21):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective The trial was designed to observe the hemodynamic circadian rhythm in serious heart failure.Methods Totally 140 cases were assigned into the trial;120 cases of serious heart failure were into the heart failure group and 20 cases without heart failure into the control group.Heart rate(HR) and stroke volume(SV)were measured per hour during hospitalization.Results Circadian rhythm existed in two groups,but the heart rates were faster and the stroke stroke volumes lower in the heart failure group.As a whole,the HR and SV were positively correlative in two groups.But the cures of heart rate and stroke volume were separate between 1:00~4:00 before dawn in the heart failure group.The heart rate descended,while stroke volume rose.Conclusion There is divergence phenomenon between heart rate and stroke volume before dawn in serious heart failure.
