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Updated: Aug 11, 2026

Tachycardia-Induced Cardiomyopathy As a Chronic Heart Failure Model in Swine
Published on: February 17, 2018
Cardiomyopathy and thyrotoxicosis: tachycardiomyopathy or thyrotoxic cardiomyopathy?
Tom Vydt1, Johan Verhelst, Gilles De Keulenaer
1Department of Cardiology, AZ Middelheim, Antwerp, Belgium. Tom.Vydt@skynet.be
Insights
Hyperthyroidism can cause heart failure, acting as a reversible cause of cardiomyopathy. This condition should be considered in all patients, particularly those without coronary artery disease.
Area of Science:
- Cardiology
- Endocrinology
Background:
- Ischaemic heart disease is the primary cause of heart failure.
- Less common etiologies, such as hyperthyroidism, warrant consideration.
Observation:
- Hyperthyroidism presents a potentially reversible cause of cardiomyopathy.
- This diagnosis should be evaluated in all new patients, irrespective of age, especially when coronary artery disease is absent.
Findings:
- The study investigates whether hyperthyroidism-related cardiomyopathy stems from tachycardiomyopathy or thyrotoxic cardiomyopathy.
- Distinguishing the underlying mechanism is crucial for effective management.
Implications:
- Excluding hyperthyroidism as a cause of cardiomyopathy is vital for timely and appropriate treatment.
- This emphasizes the importance of a comprehensive diagnostic approach in heart failure patients.
Abstract:
Ischaemic heart disease is the most common cause of heart failure, but less common causes such as hyperthyroidism should be kept in mind. As a potential reversible cause of cardiomyopathy hyperthyroidism should be excluded in every new patient, young and old, especially in the absence of coronary artery disease. Inspired by an intriguing clinical case we address the question whether hyperthyroidism-related cardiomyopathy is due to tachycardiomyopathy or to thyrotoxic cardiomyopathy.
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Cardiomyopathy I: Introduction and Classification
Hyperthyroidism II: Pathophysiology
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Increased pulse rate
Many factors can elevate the risk of developing tachycardia. These include advanced age, a family history of arrhythmias, and an...