1. [Prevalence of transthyretin cardiac amyloidosis in patients hospitalized for heart failure with preserved ejection fraction and septal thickness].
- Author
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Decotto S, Fernández Villar G, Llamedo MC, Villanueva E, Pérez De Arenaza D, Lucas L, Del Castillo S, Rossi E, Belziti C, and Pizarro R
- Subjects
- Humans, Female, Male, Cross-Sectional Studies, Prevalence, Aged, 80 and over, Aged, Hospitalization statistics & numerical data, Prospective Studies, Cardiomyopathies epidemiology, Cardiomyopathies diagnostic imaging, Radionuclide Imaging, Heart Septum diagnostic imaging, Heart Failure epidemiology, Heart Failure physiopathology, Heart Failure diagnostic imaging, Stroke Volume physiology, Amyloid Neuropathies, Familial epidemiology, Amyloid Neuropathies, Familial physiopathology, Amyloid Neuropathies, Familial complications, Amyloid Neuropathies, Familial diagnostic imaging
- Abstract
Introduction: Transthyretin cardiac amyloidosis (ATTR-CM) usually presents as heart failure with preserved ejection fraction. Its diagnosis has a significant clinical impact, as specific treatment is currently available. The aim of this study is to assess the prevalence of ATTR-CM in patients hospitalized for heart failure with preserved ejection fraction and septal thickness in our region., Methods: Cross-sectional study. Patients over 18 years old hospitalized for heart failure with preserved ejection fraction (greater than 50%) and septal thickness greater than or equal to 12 mm during the period from 8/2019 to 1/2023 were prospectively included. A pyrophosphate bone scintigraphy (PYP) was planned to assess cardiac involvement. The prevalence of ATTR-CM and its 95% confidence interval were calculated., Results: A PYP was performed in 59/82 patients. The median age was 85 [IQR 78-88] years old, 54% women. On admission, 61% had atrial fibrillation/flutter rhythm and the median NT-Pro-Bnp was 3536 [IQR 1700-7748] pg/nl. The mean ejection fraction was 57% (± 5). The prevalence of ATTR-CM diagnosed by bone scintigraphy with PYP was 19% (95%CI 9.7-30.1). No differences were found compared with those patients who did not perform a PYP., Conclusion: In patients admitted for heart failure with preserved ejection fraction and septal thickness, the diagnosis of ATTR-CM was relatively common (1/5). We believe that it should be routinely explored.
- Published
- 2024