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2015 ; 2015
(ä): 714793
Nephropedia Template TP
gab.com Text
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Twit Text #
English Wikipedia
Endogenous Ouabain: An Old Cardiotonic Steroid as a New Biomarker of Heart
Failure and a Predictor of Mortality after Cardiac Surgery
#MMPMID26609532
Simonini M
; Pozzoli S
; Bignami E
; Casamassima N
; Messaggio E
; Lanzani C
; Frati E
; Botticelli IM
; Rotatori F
; Alfieri O
; Zangrillo A
; Manunta P
Biomed Res Int
2015[]; 2015
(ä): 714793
PMID26609532
show ga
Cardiovascular diseases remain the main cause of mortality and morbidity
worldwide; primary prevention is a priority for physicians. Biomarkers are useful
tools able to identify high-risk individuals, guide treatments, and determine
prognosis. Our aim is to investigate Endogenous Ouabain (EO), an adrenal stress
hormone with hemodynamic effects, as a valuable biomarker of heart failure. In a
population of 845 patients undergoing elective cardiac surgery, we have
investigated the relationships between EO and echocardiography
parameters/plasmatic biomarker of cardiac function. EO was found to be correlated
negatively with left ventricular EF (p = 0.001), positively with Cardiac
End-Diastolic Diameter (p = 0.047), and positively with plasmatic NT-proBNP level
(p = 0.02). Moreover, a different plasmatic EO level (both preoperative and
postoperative) was found according to NYHA class (p = 0.013). All these results
have been replicated on an independent cohort of patients (147 subjects from US).
Finally, a higher EO level in the immediate postoperative time was indicative of
a more severe cardiological condition and it was associated with increased
perioperative mortality risk (p = 0.023 for 30-day morality). Our data suggest
that preoperative and postoperative plasmatic EO level identifies patients with a
more severe cardiovascular presentation at baseline. These patients have a higher
risk of morbidity and mortality after cardiac surgery.