Choi، نويسنده , , Bong-Ryong and Kim، نويسنده , , Jae Seung and Yang، نويسنده , , You Jung and Park، نويسنده , , Kyoung Min and Lee، نويسنده , , Cheol Whan and Kim، نويسنده , , Yong-Hak and Hong، نويسنده , , Myeong-Ki and Song MD، نويسنده , , Jae-Kwan and Park MD، نويسنده , , Seong-Wook and Park، نويسنده , , Seung-Jung and Kim، نويسنده , , Jae-Joong، نويسنده ,
Cerebral blood flow (CBF) is decreased and cognitive dysfunction develops in the advanced stages of heart failure. However, few data are available regarding the factors associated with decreased CBF. Fifty-two patients with advanced congestive heart failure (CHF) secondary to idiopathic dilated cardiomyopathy (ejection fraction ≤35%) and 10 healthy volunteers were included in this study. Echocardiography and symptom-limited bicycle exercise testing were performed. Global CBF was measured by radionuclide angiography. Global CBF was 19% less in patients with CHF than in controls (p <0.01). Such reduced CBF became normalized in 4 patients with CHF who underwent cardiac transplantation. In a univariate linear regression analysis, global CBF was significantly associated with New York Heart Association functional class, disease duration, atrial fibrillation, serum B-type natriuretic peptide level, the early mitral velocity/early diastolic annular velocity ratio, and pulmonary artery systolic pressure. Global CBF was not found to be associated with the ejection fraction, peak oxygen consumption, or anaerobic threshold. In a stepwise multivariate linear regression analysis, serum B-type natriuretic peptide level (p = 0.047) and New York Heart Association functional class (p = 0.003) were significantly related to global CBF (global CBF = 48.373 − 0.05 × serum B-type natriuretic peptide level − 3.283 × New York Heart Association functional class; r2 = 0.401). In conclusion, CBF is decreased in patients with CHF, which may be used to predict disease severity and chronicity.