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  • Prevalence of wild type ATT...
    Mohamed-Salem, Laroussi; Santos-Mateo, Juan José; Sanchez-Serna, Juan; Hernández-Vicente, Álvaro; Reyes-Marle, Rafael; Castellón Sánchez, María I.; Claver-Valderas, María Antonia; Gonzalez-Vioque, Emiliano; Haro-del Moral, Francisco J.; García-Pavía, Pablo; Pascual-Figal, Domingo A.

    International journal of cardiology, 11/2018, Letnik: 270
    Journal Article

    Myocardial uptake of bone tracers has emerged as useful tool for the early detection of transthyretin amyloidosis (ATTR). The prevalence of wild-type ATTR (ATTRwt) in individuals remains to be established. All whole body bone scans performed in individuals ≥ 75 years with no previous clinical suspicion of ATTR were revised in a population-based university hospital over a 7-year period (1509 studies corresponding to 1114 patients; 80.5 ± 4.1 years, 65% males). Positive cardiac uptake was defined according to Perugini score as grade 2 or 3. Heart failure (HF) hospitalizations during the follow-up were obtained from regional administrative databases. Thirty-one patients ≥ 75 years (2.78%) showed cardiac uptake; compared with those without uptake, these patients were older (85 ± 5 vs. 80 ± 4, p < 0.001) and predominantly males (90% vs. 64%, p = 0.005). The prevalence of cardiac uptake was 3.88% in males and 0.77% in females, and increased with age, reaching 13.9% in males≥85 years (2.7% among females). The estimated prevalence for the European standard population ≥ 75 years was 4.15% in males, 1.03% in females and 2.59% in the general population. HF hospitalizations rates were 14% in patients without uptake and 29% in those with cardiac uptake (p = 0.034). After adjusting for age and gender, cardiac uptake was associated with a higher risk of HF hospitalization (OR 2.60, 95%CI 1.09–5.74, p = 0.022). Myocardial uptake in bone scan is very prevalent with ageing, mainly affects males and is associated with an increased risk of HF hospitalization. These findings reinforce ATTRwt as a relevant cause of HF in the elderly. •Over 75 years, 3.88% of males and 0.77% of females had cardiac uptake in bone scan.•Among males over 85 years, prevalence of cardiac uptake reached 13.9%.•Cardiac uptake was associated with a higher risk of HF hospitalization.