Pericardial effusion associated with subclinical hypothyroidism

Area of Science:

• Endocrinology
• Cardiovascular Medicine
• Internal Medicine

Background:

• Subclinical thyroid dysfunction, marked by abnormal thyroid-stimulating hormone (TSH) levels, is linked to adverse cardiovascular effects.
• Subclinical hyperthyroidism may induce arrhythmias, while subclinical hypothyroidism is associated with atherosclerosis and ischemic heart disease.

Observation:

• A 41-year-old woman presented with subclinical hypothyroidism and a widespread pericardial effusion.
• This case underscores the potential link between subclinical hypothyroidism and systemic conditions.

Findings:

• Subclinical hypothyroidism is characterized by elevated TSH with normal free thyroid hormones.
• It is associated with abnormal lipid metabolism, cardiac dysfunction, diastolic hypertension, and increased cardiovascular risk.
• Subclinical hypothyroidism may increase the risk of coronary heart disease and cardiovascular mortality.

Implications:

• Subclinical thyroid dysfunction's role in cardiovascular morbidity and mortality requires further investigation.
• This case emphasizes the importance of considering subclinical hypothyroidism in patients with systemic disorders like pericardial effusion.
• Further research is needed to clarify the clinical applications and management of subclinical thyroid dysfunction.