{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,14]],"date-time":"2026-03-14T14:58:39Z","timestamp":1773500319165,"version":"3.50.1"},"reference-count":108,"publisher":"MDPI AG","issue":"8","license":[{"start":{"date-parts":[[2025,4,12]],"date-time":"2025-04-12T00:00:00Z","timestamp":1744416000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JCM"],"abstract":"<jats:p>Background\/Objectives: Transthyretin cardiac amyloidosis (ATTR-CA) is an infiltrative cardiomyopathy caused by transthyretin (TTR) amyloid deposition in the myocardium, increasingly recognized in patients with aortic stenosis (AS). This study aims to investigate the diagnostic challenges and therapeutic strategies for patients with both conditions, focusing on shared pathophysiological mechanisms and key diagnostic indicators. Methods: A multimodal diagnostic approach was applied, utilizing cardiac magnetic resonance (CMR) and bone scintigraphy with technetium-99m-labeled tracers to assess AS patients with suspected ATTR-CA. Clinical signs, such as disproportionate heart failure symptoms, conduction abnormalities, and low-flow, low-gradient AS, were evaluated. Electrocardiographic findings, including low-voltage QRS complexes and pseudo-infarction patterns, were also assessed. Treatment options, including transcatheter aortic valve replacement (TAVR) and emerging pharmacotherapies for ATTR-CA, were analyzed. Results: The study found that ATTR-CA is increasingly prevalent in AS patients, with shared mechanisms like oxidative stress and amyloid-induced tissue remodeling. Key diagnostic signs include disproportionate heart failure symptoms, conduction abnormalities, and specific electrocardiographic patterns. TAVR was effective in both isolated AS and AS with ATTR-CA, although patients with both conditions had a higher risk of heart failure hospitalization and persistent symptoms. Emerging pharmacotherapies, such as TTR stabilizers and gene-silencing agents, showed promise in slowing disease progression. Conclusions: A multimodal diagnostic approach is essential for the early detection of ATTR-CA in AS patients. Combining TAVR with emerging pharmacotherapies may improve long-term outcomes for this high-risk group, enhancing patient care in those with both conditions.<\/jats:p>","DOI":"10.3390\/jcm14082652","type":"journal-article","created":{"date-parts":[[2025,4,14]],"date-time":"2025-04-14T04:42:07Z","timestamp":1744605727000},"page":"2652","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["A Tale of Two Diseases: Decoding Aortic Stenosis and Cardiac Amyloidosis"],"prefix":"10.3390","volume":"14","author":[{"ORCID":"https:\/\/orcid.org\/0009-0003-1700-8244","authenticated-orcid":false,"given":"Ioannis","family":"Gialamas","sequence":"first","affiliation":[{"name":"3rd Department of Cardiology, \u201cSotiria\u201d Chest Diseases Hospital, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4444-0967","authenticated-orcid":false,"given":"George E.","family":"Zakynthinos","sequence":"additional","affiliation":[{"name":"3rd Department of Cardiology, \u201cSotiria\u201d Chest Diseases Hospital, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"George","family":"Dimeas","sequence":"additional","affiliation":[{"name":"Department of Internal Medicine, General Hospital of Karditsa, 43100 Karditsa, Greece"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5394-832X","authenticated-orcid":false,"given":"Panteleimon","family":"Pantelidis","sequence":"additional","affiliation":[{"name":"3rd Department of Cardiology, \u201cSotiria\u201d Chest Diseases Hospital, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Elias","family":"Gialafos","sequence":"additional","affiliation":[{"name":"3rd Department of Cardiology, \u201cSotiria\u201d Chest Diseases Hospital, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Styliani","family":"Brili","sequence":"additional","affiliation":[{"name":"3rd Department of Cardiology, \u201cSotiria\u201d Chest Diseases Hospital, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Athina","family":"Goliopoulou","sequence":"additional","affiliation":[{"name":"3rd Department of Cardiology, \u201cSotiria\u201d Chest Diseases Hospital, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ourania","family":"Katsarou","sequence":"additional","affiliation":[{"name":"3rd Department of Cardiology, \u201cSotiria\u201d Chest Diseases Hospital, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4525-6459","authenticated-orcid":false,"given":"Elsi","family":"Tryfou","sequence":"additional","affiliation":[{"name":"3rd Department of Cardiology, \u201cSotiria\u201d Chest Diseases Hospital, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2036-6192","authenticated-orcid":false,"given":"Konstantinos","family":"Kalogeras","sequence":"additional","affiliation":[{"name":"3rd Department of Cardiology, \u201cSotiria\u201d Chest Diseases Hospital, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Gerasimos","family":"Siasos","sequence":"additional","affiliation":[{"name":"3rd Department of Cardiology, \u201cSotiria\u201d Chest Diseases Hospital, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece"},{"name":"Cardiovascular Division, Brigham and Women\u2019s Hospital, Harvard Medical School, Boston, MA 02115, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8079-0599","authenticated-orcid":false,"given":"Evangelos","family":"Oikonomou","sequence":"additional","affiliation":[{"name":"3rd Department of Cardiology, \u201cSotiria\u201d Chest Diseases Hospital, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2025,4,12]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"2852","DOI":"10.1016\/j.jacc.2014.04.018","article-title":"The prevalence, incidence, progression, and risks of aortic valve sclerosis: A systematic review and meta-analysis","volume":"63","author":"Coffey","year":"2014","journal-title":"J. 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