Abstract:
BACKGROUND:Aortic stenosis (AS) is an active disease, but the determinants of AS progression remain largely unknown. Low levels of Fetuin-A, a powerful inhibitor of ectopic calcification, have been linked to ectopic calcium tissue deposition but its role in AS progression has not been clearly evaluated. METHODS:In our ongoing prospective cohort (COFRASA/GENERAC), serum Fetuin-A level was measured at baseline and AS severity was evaluated at baseline and yearly thereafter using echocardiography (mean pressure gradient (MPG)) and computed tomography (degree of aortic valve calcification (AVC)). Annual progression was calculated as [(final measurement-baseline measurement)/follow-up duration] for both MPG and AVC measurements. RESULTS:We enrolled 296 patients (74 ± 10 years,73% men); mean follow-up duration was 3.0 ± 1.7 years. No correlation was found between baseline serum Fetuin-A (0.55 ± 0.15 g/L) and baseline AS severity (r = 0.25, p = 0.87 for MPG; r = 0.06, p = 0.36 for AVC). More importantly, there was no correlation between baseline serum Fetuin-A level and AS progression either assessed using MPG or AVC (both r = 0.01, p = 0.82). In bivariate analysis, after adjustment for age, gender, baseline AS severity, or valve anatomy, Fetuin-A was not associated with AS progression (all p > 0.20). The absence of link with AS progression was further confirmed by the absence of link betwen serum Fetuin-A and the occurrence of AS-related events (p = 0.17). CONCLUSIONS:In a large prospective cohort of AS patients, serum Fetuin-A was not associated to hemodynamic or anatomic AS progression. Despite its capacity to inhibit ectopic calcium deposition, Fetuin-A serum level seemed to have minor influence on AS progression.
journal_name
Int J Cardioljournal_title
International journal of cardiologyauthors
Kubota N,Testuz A,Boutten A,Robert T,Codogno I,Duval X,Tubiana S,Hekimian G,Arangalage D,Cimadevilla C,Kerneis C,Vahanian A,Messika-Zeitoun Ddoi
10.1016/j.ijcard.2018.03.070subject
Has Abstractpub_date
2018-08-15 00:00:00pages
52-57eissn
0167-5273issn
1874-1754pii
S0167-5273(17)36485-9journal_volume
265pub_type
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