Diagnosis of Amyloidosis: A Survey of Current Awareness and Clinical Challenges Among Cardiologists in Switzerland

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INTRODUCTION: Transthyretin amyloidosis (ATTR) is a progressive disease in which amyloid fibril deposition disrupts tissue structure and organ function. Many patients with ATTR present with cardiac involvement; recent studies indicate that ATTR prevalence is higher than expected in patients with certain heart conditions. Although long delays to diagnosis are common, recent treatment advances have made timely diagnosis critical to ensure appropriate patient management. Despite clinical guideline updates, it remains unclear how these are being implemented in routine patient care. METHODS: We performed a survey of practicing cardiologists in Switzerland to assess their knowledge of ATTR and current clinical practice. RESULTS: Overall, 72 cardiologists completed the questionnaire in a face-to-face interview (n = 16) or online (n = 56). Key findings highlighted wide variation in cardiologists' knowledge about the diagnostic tests required for a differential diagnosis of ATTR. In particular, many cardiologists lacked familiarity with radiolabeled bone scintigraphy, an important non-invasive test that is part of the diagnostic algorithm for ATTR. Another challenge in diagnosing amyloidosis appears to be general awareness of ATTR among cardiologists. CONCLUSIONS: Survey results highlight that cardiologists in Switzerland would benefit from information on the latest advances in ATTR to support them in screening heart failure patients and ensure that patients benefit from treatment advances.

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