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  • Title: Echocardiographic and clinical findings in patients with Fabry disease during long-term enzyme replacement therapy: a nationwide Danish cohort study.
    Author: Madsen CV, Bundgaard H, Rasmussen ÅK, Sørensen SS, Petersen JH, Køber L, Feldt-Rasmussen U, Petri H.
    Journal: Scand Cardiovasc J; 2017 Aug; 51(4):207-216. PubMed ID: 28545342.
    Abstract:
    OBJECTIVES: In patients with Fabry disease (FD), left ventricular hypertrophy and arrhythmias are frequently observed and cardiac involvement is the leading cause of death. Long-term efficacy of enzyme replacement therapy (ERT) on cardiac involvement is unclear. We assessed and compared long-term progression of cardiac involvement according to ERT and non-ERT. METHODS: We retrospectively assessed and compared long-term progression of cardiac involvement in adult patients with FD in the nationwide Danish cohort. We followed clinical signs, symptoms and findings by echocardiography, electrocardiography and Holter-monitoring. RESULTS: We included 66 patients; 47 patients (27 women) received ERT (ERT group) and 19 patients (15 women) did not (non-ERT group). The groups were followed for a median of 8 [0-12] years and 6 [0-13] years, respectively. Comparison between ERT and non-ERT receiving patients by left ventricular mass (echocardiographic assessment) and Sokolow-Lyon voltage- and Cornell product criteria (electrocardiographic assessment) revealed no significant differences. In the ERT group, we observed no change in left ventricular mass but a decrease in Sokolow-Lyon voltage- and Cornell product criteria from baseline to follow-up; 30 mm [15-53] vs. 25 mm [3-44], p < 0.005 and 1710 mm·ms [480-3740] vs. 1520 mm·ms [550-5740], p < .05, respectively. There were no changes within the non-ERT group. During follow-up, cardiac symptoms and use of cardiovascular procedures and -medication increased significantly in the ERT group, whereas no differences were observed within the non-ERT group. DISCUSSION: We raise concerns regarding the efficacy and benefit of ERT on cardiac involvement in Fabry disease and stress the need for further research.
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