Prevalence of transthyretin cardiac amyloidosis in patients with heart failure with preserved ejection fraction: the PRACTICA study.
Rev Esp Cardiol (Engl Ed)
; 2024 Jul 31.
Article
en En, Es
| MEDLINE
| ID: mdl-39089574
ABSTRACT
INTRODUCTION AND OBJECTIVES:
Transthyretin cardiac amyloidosis (ATTR-CA) is a frequent cause of heart failure with preserved ejection fraction (HFpEF). This study sought to determine the prevalence of ATTR-CA among HFpEF patients in a multicenter nationwide study.METHODS:
Consecutive ambulatory or hospitalized patients aged ≥ 50 years with HFpEF and left ventricle hypertrophy ≥ 12mm were studied at 20 Spanish hospitals. Screening for cardiac amyloidosis was initiated according to the usual clinical practice of each center. Positive scintigraphs were centrally analyzed.RESULTS:
422 patients were included, of whom 387 underwent further screening for cardiac amyloidosis. A total of 65 patients (16.8%) were diagnosed with ATTR-CA, none below 75 years. There was an increase of prevalence with age. Of them, 60% were male, with a mean age of 85.3±5.2 years, mean left ventricle ejection fraction of 60.3±7.6% and a mean maximum left ventricle wall thickness of 17.2 [12-25] mm. Most of the patients were New York Heart Association class II (48.4%) or III (46.8%). Besides being older than non-ATTR-CA patients, ATTR-CA patients had higher median NT-proBNP levels (3801 [2266-7132] vs 2391 [1141-4796] pg/mL; P=.003). There was no statistical difference in the prevalence of ATTR-CA by sex (19.7% for men and 13.8% for women, P=.085). A â¼7% (4/56) of the patients exhibited a genetic variant (ATTRv).CONCLUSIONS:
This multicenter nationwide study found a prevalence of 16.8%, confirming that ATTR-CA is a significant contributor to HFpEF in male and female patients with left ventricle hypertrophy and more than 75 years.
Amiloidosis cardiaca; Amiloidosis cardiaca por transtirretina; Cardiac amyloidosis; Fracción de eyección conservada; Heart failure; Hipertrofia del ventrículo izquierdo; Insuficiencia cardiaca; Left ventricular hypertrophy; Preserved ejection fraction; Prevalence; Prevalencia; Transthyretin; Transthyretin cardiac amyloidosis; Transtirretina
Texto completo:
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Colección:
01-internacional
Base de datos:
MEDLINE
Idioma:
En
/
Es
Revista:
Rev Esp Cardiol (Engl Ed)
Año:
2024
Tipo del documento:
Article
Pais de publicación:
España