Comparison of the Characters of Circadian Rhythms of Cardiovascular Functions between Full-term and Premature Infants
- VernacularTitle:早产儿与足月儿心血管功能近日节律特征的比较
- Author:
Xiaoping XIE
;
Yanyou LIU
;
Chaomin WAN
- Publication Type:Journal Article
- Keywords:
full-term infant;
premature infant;
circadian rhythm;
cardiovascular function
- From:Space Medicine & Medical Engineering
2006;0(04):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To compare the characters of circadian rhythm of the cardiovascular function between full-term and premature infants.Methods Blood pressure(BP),aortic blood velocity(ABV),aortic blood acceleration(ABA) and aortic strok distance(ASD) were continuously measured in full-term and premature infants for 48 h.Each time series was analyzed with 24-hour cosine curve-fitting method.Results The parameters of cardiovascular function in most of the full-term infants,including BP,ABV,ABA and ASD showed robust circadian rhythm,but most of premature infants did not show obvious circadian rhythm.The averages of those parameters were not different in full-term and premature infants,whereas the amplitude were significant different in the two groups.Conclusion It is indicated that the functions of the cardiovascular system was not different in full-term and premature infants,but circadian rhythm of cardiovascular system in premature infants has not perfectly developed.
