ArticleJournal of internal medicine2025
Wild-type transthyretin cardiac amyloidosis and aortic stenosis: Can carpal tunnel syndrome help distinguish the chicken from the egg?
Article in Journal of internal medicine, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Aortic valve calcium score from computed tomography for signal localization by cardiac amyloid radionuclide imaging to predict aortic stenosis and assess prognosis in patients with transthyretin cardiomyopathy.European journal of nuclear medicine and molecular imaging · 2026Article
- A Tale of Two Diseases: Decoding Aortic Stenosis and Cardiac Amyloidosis.Journal of clinical medicine · 2025Review
- Wild-type transthyretin cardiac amyloidosis and aortic stenosis: Can carpal tunnel syndrome help distinguish the chicken from the egg?Journal of internal medicine · 2025Article
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14 authors.
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Abstract
backgroundThe frequent association between transthyretin wild-type (TTRwt) cardiac amyloidosis (CA) and aortic stenosis (AS) suggests a bidirectional relationship: TTRwt-CA could induce AS and vice versa. Systemic manifestations may highlight this interaction: systemic amyloidogenesis would lead to systemic symptoms, CA, and AS, whereas the myocardial stresses induced by degenerative AS might promote local amyloidogenesis without systemic symptoms. Carpal tunnel syndrome (CTS) is the most frequently reported extracardiac symptom. Through a comparison of TTRwt-CA patients with and without CTS, we sought to determine whether CTS serves as a reliable indicator of systemic involvement and its impact on cardiac and valvular characteristics. METHODS AND
resultsA total of 411 consecutive patients with TTRwt-CA were included. CTS, present in 70.3%, was associated with a younger age (80 vs. 84 years, p < 0.001), more extracardiac symptoms, and advanced CA, with greater cardiac remodeling and a higher heart-to-mediastinum ratio (1.63 vs. 1.54; p = 0.012) compared to patients without CTS. AS was present in 21% and 31% of patients with and without CTS, respectively (p = 0.024). Except for AS, these associations remained significant after adjusting for confounding factors. In severe AS, patients with CTS exclusively exhibited low-flow low-gradient (LFLG) AS and less severe class of aortic valvular calcium score (5.6% vs. 60%; p = 0.006) compared to those without CTS.
conclusionOur findings suggest that CTS may delineate two phenotypes in TTRwt-CA: a systemic phenotype associated with advanced CA and poorly calcified LFLG AS, and a cardiac phenotype characterized by less severe CA and a mixed pattern of highly calcified AS, suggesting disparate pathophysiologies.
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