Changes of Intraerythrocytic Calcium,Serum Cardiac Troponin I and Their Relationships with Heart Function in Infants with Pneumonia Complicated with Heart Failure / 实用儿科临床杂志

ABSTRACT

Objective To evaluate the relationship of intraerythrocytic calcium(Ca~(2+)),serum cardiac troponin I(cTnI) and contractile and diastolic dysfunction in infants with pneumonia complicated with heart failure(HF),and discuss the role of Ca~(2+) and cTnI.(Met)-hods One hundred and thirty-three infants with pneumonia complicated with HF and 30 healthy children were studied.Intraerythrocytic calcium,serum cTnI and ejection fraction(EF),fractional shortening(FS) and E/A were measured by color Doppler ultrasoundraphy.Results Intraerythrocytic calcium,serum cTnI and EF,FS and E/A in two groups had difference.With the disease deteriorating,the values of Ca~(2+) and cTnI increased,and EF,FS,E/A decreased gradually.There were negative relations between Ca~(2+),cTnI and EF,FS,E/A.Conclusions Ca~(2+),cTnI are concerned with the development of HF.In clinical experiments,the contractile function and diastolic function of heart can be judged by the levels of intraerythrocytic calcium and serum cTnI.