From the Research
Relationship Between Thyroid Cancers and Supraventricular Tachycardia (SVT)
- There is no direct evidence in the provided studies that thyroid cancers cause supraventricular tachycardia (SVT) 1, 2, 3, 4, 5.
- However, studies suggest that thyroid dysfunction, including hyperthyroidism and hypothyroidism, can be associated with supraventricular tachycardia 1, 2, 4.
- Hyperthyroidism is commonly linked with supraventricular arrhythmias, including atrial fibrillation and supraventricular tachycardia 4, 5.
- Hypothyroidism is rarely associated with arrhythmias, but there have been cases where severe hypothyroidism presented with supraventricular tachycardia, and the arrhythmia resolved with thyroxine replacement therapy 1.
- The exact mechanism of how thyroid dysfunction contributes to SVT is not fully understood, but it is suggested that thyroid disorders may be a triggering factor for arrhythmias, rather than a direct cause 2.
Thyroid Dysfunction and SVT
- Studies have shown that treating thyroid dysfunction can lead to the resolution of supraventricular tachycardia, suggesting a possible link between the two conditions 1, 2, 4, 5.
- The prevalence of supraventricular tachycardia has been found to decrease with treatment of hyperthyroidism 4.
- Thyroid function should be evaluated in patients with supraventricular tachycardia, especially if they have a history of thyroid disease or are resistant to antiarrhythmic treatment 2.