1. Global longitudinal strain in pre-symptomatic patients with mutation for transthyretin amyloidosis
- Author
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Grazia Canciello, Stefano Tozza, Gaetano Todde, Maria Nolano, Felice Borrelli, Giovanni Palumbo, Raffaella Lombardi, Emanuele Cassano, Wanda Acampa, Giovanni Esposito, Fiore Manganelli, and Maria Angela Losi
- Subjects
Global longitudinal strain ,Hereditary transthyretin amyloidosis ,Pre-clinical disease ,Thermal quantitative sensory testing ,Medicine - Abstract
Abstract Background Hereditary transthyretin (ATTRv) amyloidosis is rare, autosomal dominant disease with a fatal outcome if left untreated. Early stages detection is crucial for intervention. We aimed identifying early indexes of cardiac involvement and their eventual correlation with neurological indexes, in pre-symptomatic subjects with TTR gene mutation. Methods Sixteen TTR-mutation carriers (mean age 51 ± 9 years, 6 males, 7 with Val30Met and 9 with Phe64Leu mutation) without left ventricular hypertrophy were studied. Predicted Age of Disease Onset (PADO) and time to PADO (Time-to PADO = PADO-age at evaluation) were computed. Subjects underwent: cardiological and echocardiographic assessment including global longitudinal strain (GLS); tactile and thermal quantitative sensory testing (QST); Perugini score by bone scintigraphy. Results Time to PADO was 30 ± 15 years. Nine subjects showed abnormal GLS (> −20%), unrelated to age, LVMi, MWT, E/e’, NT-proBNP or Time-to PADO. QST findings were abnormal in most subjects. At a worse cold pain threshold corresponded a worse GLS (r = 0.786, p
- Published
- 2024
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