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• W4386564457 abstract "Abstract Aims Agonistic antibodies against neurohumoral receptors can induce cardio‐noxious effects by altering the baseline receptor activity. To estimate the prevalence of autoantibodies directed against the beta‐1 receptor (b1‐AAB) in patients admitted to the hospital for acute heart failure (HF) at (i) baseline and (ii) after 6 months of follow‐up (F6) and (iii) after another 12 months of follow‐up (i.e. 18 months after index hospitalization), to estimate their prognostic impact on clinical outcome (death or first hospitalization for HF). Methods and results In 47 patients, b1‐AAB were serially determined in serum samples collected at index hospitalization and at 6 months of follow‐up (F6) with a flow cytometry‐based assay: median age 71 years (quartiles 60, 80), 23 (49%) women, 24 (51%) HF with preserved ejection fraction. Beta1‐AAB were detected in three subjects at index hospitalization (6%), and in eight subjects at F6 (17%). There were no differences apparent between patients with and without b1‐AAB at F6 with regard to age, sex, type, duration, or main cause of HF. During the 12 month period following F6 (i.e. up to month 18), eight events occurred. Event‐free survival was associated with prevalence of b1‐AAB at F6. Compared with patients without b1‐AAB at F6, age‐adjusted Cox regression indicated a higher event risk in patients harbouring b1‐AAB, with a hazard ratio of 8.96 (95% confidence interval 1.81–44.50, P = 0.007). Conclusions Our results suggest a possible adverse prognostic relevance of b1‐AAB in patients with acute HF, but this observation needs to be confirmed in larger patient collectives." @default.
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• W4386564457 date "2023-09-08" @default.
• W4386564457 modified "2023-10-14" @default.
• W4386564457 title "Prevalence of anti‐beta‐1 antibody 6 months after hospitalization for acute heart failure predicts adverse outcome" @default.
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• W4386564457 doi "https://doi.org/10.1002/ehf2.14509" @default.
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