[Prognostic value of big endothelin-1 prognostic value in patients with heart failure and moderately symptomatic functional class].
OBJECTIVE
Several studies have analyzed big endothelin-1 as a marker of mortality in patients with severe heart failure (HF). However, it has not proven prognostic value in patients with moderately symptomatic functional class. Our objective was to evaluate, in a 24 months follow-up, the prognostic power of big endothelin-1 in patients with HF and moderately deteriorated functional class.


METHODS
Big endothelin-1 levels were measured in a cohort of 90 outpatients (age 64 (13), 70% males) diagnosed with HF. Patients were functionally classified (NYHA).


RESULTS
For the whole population, big endothelin-1 was 0.86 (0.61-1.20)fmol/ml. We evaluated its predictive value in detecting cardiovascular mortality, obtaining an AUC of 0.68 (0.08) (P=.02), and a cut-off value of 0.98 fmol/ml (sensitivity 69%, specificity 75%). When a logistic regression analysis was performed, big endothelin-1 was also an independent predictor of mortality (OR=5.851, P=.009).


CONCLUSIONS
Big endothelin-1 predicts cardiovascular mortality in patients diagnosed of HF and moderately symptomatic functional class.
Roselló-Lletí
Esther
E
Unidad de Cardiología, Centro de Investigación del Hospital Universitario La Fe, Valencia, España. rivera_jmi@gva.es
Rivera
Miguel
M
Miró
Vicente
V
Cortés
Raquel
R
Martínez-Dolz
Luís
L
Portolés
Manuel
M
D019332:Endothelin-1 / Q000097:blood*; D005260:Female; D005500:Follow-Up Studies; D006333:Heart Failure / Q000097:blood* / Q000145:classification / Q000401:mortality / Q000503:physiopathology; D006801:Humans; D008297:Male; D008875:Middle Aged; D011237:Predictive Value of Tests; D011379:Prognosis; D011446:Prospective Studies
D019332:Endothelin-1