RESUMEN
Objective To evaluate the clinical significance of the changes of plasma B-type natriuretic paprid and NT-pro BNP levels in patients with chronic heart failure(CHF).Methods 120 consecutive patients hospitalized for CHF were retrospectively studied.NT-pro BNP and LVEDD,LVESD,LVEF were measured and compared in 120 patients and 50 normal control subjects before medical treatment and on discharge.Results The plasma NT-pro BNP levels in patients with CHF were significantly higher than controls( P <0.05).The plasma NT-pro BNP levels in patients with cardiac function NYHA Ⅰ were significantly higher than controls( P < 0.05).As the cardiac function deteriorated from NYNA Ⅰ to NYNA Ⅳ,the NT-pro BNP levels increased consecutively with significant differences from each other ( P < 0.05).The plasma NT-pro BNP levels was low when CHF was cured ( P < 0.05 ).Conclusion Determination of plasma NT-pro BNP levels in patients with CHF were helpful to study the severity and prognosis of disease.