Prognostic utility of right ventricular systolic functions assessed by tissue doppler imaging in dilated cardiomyopathy and its correlation with plasma NT-pro-BNP levels.
The authors invesitgated the impact of right ventricular systolic function measured by tissue Doppler imaging on clinical end points and its correlation with plasma NT-pro-BNP levels in 75 patients with nonischemic dilated cardiomyopathy. Echocardiographic peak systolic velocities of tricuspid lateral annulus by tissue Doppler imaging and plasma pro-B-type natriuretic peptide (NT-pro-BNP) levels were measured. Forty patients had clinical end points in 29+/-16 months. They were found to have higher plasma NT-pro-BNP levels and lower tricuspid lateral annulus and interventricular septum tissue Doppler peak systolic velocities than patients without clinical end points. Cut-off level of plasma NT-pro-BNP levels for predicting clinical end points was 1700 pg/mL (sensitivity and specificity, 82% and 75%, respectively). Cut-off level of tricuspid lateral annulus tissue Doppler peak systolic velocities for predicting clinical end points was 6.25 cm/sec (sensitivity and specificity, 80% and 57%, respectively). In conclusion, plasma NT-pro-BNP levels and tissue Doppler-derived right ventricular systolic functional parameters are helpful in determining prognosis in dilated cardiomyopathy.
Tigen
Kursat
K
Cardiology Department, Kartal Kosuyolu Heart and Research Hospital, Istanbul, Turkey.
Karaahmet
Tansu
T
Cevik
Cihan
C
Gurel
Emre
E
Pala
Selcuk
S
Mutlu
Bulent
B
Basaran
Yelda
Y
D000328:Adult; D002311:Cardiomyopathy, Dilated / Q000000981:diagnostic imaging* / Q000473:pathology; D005260:Female; D006352:Heart Ventricles / Q000000981:diagnostic imaging* / Q000473:pathology; D006801:Humans; D053208:Kaplan-Meier Estimate; D008297:Male; D008875:Middle Aged; D020097:Natriuretic Peptide, Brain / Q000097:blood*; D010446:Peptide Fragments / Q000097:blood*; D011379:Prognosis; D011446:Prospective Studies; D012372:ROC Curve; D018570:Risk Assessment; D012680:Sensitivity and Specificity; D013223:Statistics as Topic; D013318:Stroke Volume; D013599:Systole; D018608:Ultrasonography, Doppler; D016277:Ventricular Function, Left
D010446:Peptide Fragments; C109794:pro-brain natriuretic peptide (1-76); D020097:Natriuretic Peptide, Brain