Abstract
Objective To expolore the changes of coagulation index in newborns of different age and its clinical significance. Methods We studied 129 newborn infants without complication admitted to the neonatal department in an all-around hospital in Gnangzhou from January to December in 2005. These neonates were divided into two groups, including 63 cases of full-term infants and 66 cases of premature infants. Prothrombin time (PT), activated partial prothrombin time (APTT), Fibrinogen (Fg), thrombin time (TT), D-dimer (D-D) of these newborn infants were assayed on the first day, the third day and the tenth day. Results In the postnatal three periods of time, there was no difference in PT and D-dimer between two groups(P >0.05), but APTT and TT in premature infants were higher than that in full-term infants( P < 0.05), and Fg in premature infants were lower than that of full-term irfants(P<0.05). PT,APTT, TT,Ddimer were in decrease tendency and Fg increased as age increased( P < 0.05 ). Conclusion Geststional age and age had effect on coagulation index in newborn infants, and both can provide clinical references to clinical diagnosis and therapy. Key words: Newborn; Age; Coagulation index
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