Prognostic value of plasma midregional pro-adrenomedullin and C-terminal-pro-endothelin-1 in chronic heart failure outpatients.
OBJECTIVE
The identification of chronic heart failure (CHF) patients at high risk of adverse outcome remains a challenge. New peptides are emerging that may give additional information. In CHF patients, endothelin (ET) levels predict mortality risk. Adrenomedullin has been shown to predict mortality in ischaemic heart failure, but not in unselected or non-ischaemic CHF patients. Moreover, ADM and ET have never been assessed in one model. The aim of the present study was to assess the prognostic value of midregional-pro-adrenomedullin (MR-proADM) and C-terminal-pro-endothelin-1 (CT-proET-1) in outpatients with CHF.


RESULTS
We measured plasma MR-proADM and CT-proET-1 levels in 786 consecutive CHF outpatients and compared them with B-type natriuretic peptide (BNP) levels. At 24-month follow-up, 233 patients had died. A stepwise forward Cox regression model with age, sex, estimated glomerular filtration rate, NYHA > II, left ventricular ejection fraction (LVEF), MR-proADM, CT-proET-1, and BNP as possible predictors revealed that MR-proADM levels [hazard ratio (HR) = 1.77, P < 0.001] in addition to age (HR = 1.02, P = 0.004), ejection fraction (HR = 0.98, P = 0.004), and NYHA > II (HR = 1.86, P < 0.001) were predictors of death at 24 months. When the analysis was repeated dependent on NYHA-stage, MR-proADM (HR = 2.12, P < 0.001) and LVEF (HR = 0.96, P = 0.006) were significant markers, but only in patients with mild/moderate CHF.


CONCLUSIONS
Our data suggest that MR-proADM may be an important prognostic humoral marker, especially in mild/moderately symptomatic and non-ischaemic CHF patients.
Adlbrecht
Christopher
C
Department of Internal Medicine II, Medical University of Vienna, Waehringer Guertel 18-20, 1090 Vienna, Austria.
Hülsmann
Martin
M
Strunk
Guido
G
Berger
Rudolf
R
Mörtl
Deddo
D
Struck
Joachim
J
Morgenthaler
Nils G
NG
Bergmann
Andreas
A
Jakowitsch
Johannes
J
Maurer
Gerald
G
Lang
Irene M
IM
Pacher
Richard
R
D053607:Adrenomedullin / Q000097:blood*; D004452:Echocardiography; D019332:Endothelin-1 / Q000097:blood*; D005260:Female; D005500:Follow-Up Studies; D006333:Heart Failure / Q000097:blood* / Q000401:mortality / Q000503:physiopathology; D006352:Heart Ventricles / Q000000981:diagnostic imaging / Q000503:physiopathology; D006801:Humans; D008163:Luminescent Measurements; D008297:Male; D008875:Middle Aged; D010045:Outpatients; D011379:Prognosis; D011498:Protein Precursors / Q000097:blood*; D012189:Retrospective Studies; D013318:Stroke Volume; D015996:Survival Rate / Q000639:trends; D013997:Time Factors
D019332:Endothelin-1; D011498:Protein Precursors; C088633:proadrenomedullin; C093240:proendothelin 1; D053607:Adrenomedullin