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Prevalence of Anderson-Fabry disease in male patients with late onset hypertrophic cardiomyopathy

Sachdev, B; Takenaka, T; Teraguchi, H; Tei, C; Lee, P; McKenna, WJ; Elliott, PM; (2002) Prevalence of Anderson-Fabry disease in male patients with late onset hypertrophic cardiomyopathy. CIRCULATION , 105 (12) 1407 - 1411. 10.1161/01.CIR.0000012626.81324.38. Green open access

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Abstract

Background-Although studies have suggested that "late-onset" hypertrophic cardiomyopathy (HCM) may be caused by sarcomeric protein gene mutations, the cause of HCM in the majority of patients is unknown. This study determined the prevalence of a potentially treatable cause of hypertrophy, Anderson-Fabry disease, in a HCM referral population.Methods and Results-Plasma alpha-galactosidase A (alpha-Gal) was measured in 79 men with HCM who were diagnosed at greater than or equal to40 years of age (52.9 +/- 7.7 years; range, 40-71 years) and in 74 men who were diagnosed at <40 years (25.9 +/- 9.2 years; range, 8-39 years). Five patients (6.3%) with late-onset disease and 1 patient (1.4%) diagnosed at <40 years had low alpha-Gal activity. Of these 6 patients, 3 had angina, 4 were in New York Heart Association class 2, 5 had palpitations, and 2 had a history of syncope. Hypertrophy was concentric in 5 patients and asymmetric in 1 patient. One patient had left ventricular outflow tract obstruction. All patients with low alpha-Gal activity had alpha-Gal gene mutations.Conclusion-Anderson-Fabry disease should be considered in all cases of unexplained hypertrophy. Its recognition is important given the advent of specific replacement enzyme therapy.

Type: Article
Title: Prevalence of Anderson-Fabry disease in male patients with late onset hypertrophic cardiomyopathy
Open access status: An open access version is available from UCL Discovery
DOI: 10.1161/01.CIR.0000012626.81324.38
Keywords: Anderson-Fabry disease, cardiomyopathy, hypertrophy, LEFT-VENTRICULAR HYPERTROPHY, REPLACEMENT THERAPY, ALPHA-GALACTOSIDASE
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Pop Health Sciences > Institute of Cardiovascular Science
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Pop Health Sciences > Institute of Cardiovascular Science > Clinical Science
URI: https://discovery.ucl.ac.uk/id/eprint/8576
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