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1.
Chinese Journal of General Practitioners ; (6): 311-314, 2011.
Article Dans Chinois | WPRIM | ID: wpr-415621

Résumé

Objective To evaluate and analyze relationship of plasma level of N-terminal probrain natriuretic peptides (NT-proBNP) and serum level of cystatin C (CysC) with cardiac and renal functions in patients with chronic heart failure (CHF) , and explore significance of CysC measurement in early diagnosis for renal damage in patients with CHF. Methods Totally, 162 patients with CHF and 150 normal healthy (controls) undergone routine physical check-up at, Taizhou People's Hospital, Jiangsu were enrolled in the study. Their plasma level of NT-proBNP and serum level of CysC, as well as serum levels of creatinine ( SCr) , urea nitrogen ( BUN) were measured and echocardiography was performed. Glomerular filtration rate (eGFR) was evaluated by modification of diet in renal disease (MDRD) study group formula. Results Compared with the control group, blood levels of NT-proBNP, CysC, SCr, BUN and left ventricular end diastolic diameter ( LVEDD) all elevated, both eGFR and left ventricular ejection fraction ( LVEF) decreased (P <0. 05 or P <0. 01 ) in CHF group, and CHF patients were prone to complicate with renal dysfunction (P<0. 01). Blood levels of NT-proBNP and CysC elevated significantly and LVEF lowered significantly in CHF patients with NYHA functional classes II , III and IV than those in control group. There was significant difference in blood levels of NT-proBNP and CysC between patients with varied NYHA functional classes (P<0. 05). Blood levels of NT-proBNP and CysC reversely correlated with LVEF (r = -0. 36, P < 0. 01 and r = - 0. 39, P < 0. 01) . Blood level of CysC correlated with that of NT-proBNP ( r = 0. 87 , P < 0. 01). Results of logistic regression analysis showed that elevated blood levels of NT-proBNP and CysC were risk factors for mortality during hospitalization in patients with CHF. Conclusions Patients with CHF were more likely to complicate with renal dysfunction than controls, with main manifestations of more severe damaged eGFR, more severe heart failure and more obviously renal damage. Blood levels of NT-proBNP and CysC can be used as indicators for evaluating exacerbation of chronic condition, and serumlevel of CysC can be used as marker for early diagnosing renal damage in patients with CHF.

2.
Chinese Journal of Primary Medicine and Pharmacy ; (12): 419-420, 2008.
Article Dans Chinois | WPRIM | ID: wpr-401288

Résumé

Objective To investigated the changes of plasma NT-proBNP levels in patients with acute myocardial infarction(AMI),unstable angina pectoris(UAP)and non-insulin-dependent diabetes(NIDD).Methods Plasma NT-proBNP levels were determined with RIA in 32 patients with AMI,27 patients with UAP,12 patients with NIDD and 20 controls.Moreover,16 of the 32 AMI patients underwent precutancous transluminal coronary angioplasty(PTCA)and plasma NT-proBNP levels were again determined 12h before and 12h after the procedure.Results The plasma NT-proBNP levels in controls were(360.8±57.3)pg/ml with no significant difference between the sexes.In patients with AMI,UAP and NIDD,NT-proBNP levels were(554.1±195 9)pg/ml,(525.7±199.1)pg/ml and(552.6±141.9)pg/ml respectively;all of them were significantly higher than those in controls.AMI patients increased from(563.1±190.1)pg/ml to(774.7±238.9)pg/ml(P<0.05).12 hours after PTCA.However,NT-proBNP levels did not differ statistically among AMI,UAP and NIDD patients(P>0.05).Conclusion The plasma NT-proBNP levels in patients with AMI,UAP and NIDD were increased significantly and the result suggested that NT-proBNP might beauseful risk marker for these diseases.

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