Incessant ventricular tachycardia due to subacute thyroiditis

Area of Science:

• Endocrinology
• Cardiology
• Thyroidology

Background:

• Subacute thyroiditis is an inflammatory thyroid condition often associated with viral infections.
• Thyrotoxicosis, a state of excess thyroid hormone, can manifest during subacute thyroiditis.
• Ventricular arrhythmias are rare complications of thyrotoxicosis, typically seen in patients with pre-existing cardiac conditions or heart failure.

Observation:

• A 52-year-old woman presented with incessant ventricular tachycardia.
• The patient had no history of underlying cardiac disease or heart failure.

Findings:

• The ventricular tachycardia was directly attributed to subacute thyroiditis.
• This case demonstrates a rare presentation of thyrotoxicosis-induced ventricular arrhythmia in the absence of cardiac comorbidities.

Implications:

• Subacute thyroiditis should be considered in the differential diagnosis of new-onset ventricular arrhythmias, even without cardiac history.
• This case underscores the potential for severe cardiac manifestations in subacute thyroiditis.
• Further research may explore the mechanisms linking thyroid inflammation to cardiac arrhythmias.