Insulin-Like Growth Factor-Binding Protein-7 and risk of congestive heart failure hospitalization in patients with atrial fibrillation
2020
Abstract Background The occurrence of congestive heart failure (CHF) hospitalization among patients with atrial fibrillation (AF) is a poor prognostic marker. Objective To assess whether Insulin-Like Growth Factor-Binding Protein-7 (IGFBP-7), a marker of myocardial damage, identifies AF patients at high risk for this complication. Methods We analyzed two prospective multicenter observational cohort studies including 3,691 AF patients. Levels of IGFBP-7 and N-terminal pro-brain natriuretic peptide (NT-proBNP) were measured from frozen plasma samples at baseline. The primary endpoint was hospitalization for CHF. Multivariable adjusted Cox-regression analyses were constructed. Results Mean age was 69±12 years, 1,028 (28%) were females and 879 (24%) had a history of CHF. The incidence per 1,000 patient-years across increasing IGFBP-7 quartiles was 7, 10, 32 and 85. The corresponding multivariable adjusted hazard ratios (aHRs) [95%CI] were 1.0, 1.05 [0.63;1.77], 2.38 [1.50;3.79], and 4.37 [2.72;7.04] (p for trend Conclusion Higher plasma levels of IGFBP-7 were strongly and independently associated with CHF hospitalization in AF-patients. The prognostic information provided by IGFBP-7 was additive to that of NT-proBNP.
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