A child with pericardial effusion and cardiac tamponade due to previously unrecognized hypothyroidism

Area of Science:

• Pediatric Cardiology
• Endocrinology
• Internal Medicine

Background:

• Hypothyroidism, a condition of insufficient thyroid hormone production, can have diverse clinical manifestations.
• Pericardial effusion, the accumulation of fluid around the heart, can lead to cardiac tamponade, a life-threatening condition.
• Early recognition and management of hypothyroidism are vital to prevent severe cardiovascular complications.

Observation:

• A 12-year-old Hispanic female presented with early cardiac tamponade.
• The cardiac tamponade was attributed to pericardial effusion.
• The patient had previously unrecognized hypothyroidism as the underlying cause.

Findings:

• The case highlights a rare but serious presentation of hypothyroidism in a pediatric patient.
• Unexplained pericardial effusions in children may be a sign of underlying hypothyroidism.
• Cardiac tamponade can develop insidiously in the context of undiagnosed hypothyroidism.

Implications:

• Pediatric patients presenting with unexplained pericardial effusions warrant screening for hypothyroidism.
• Close monitoring for the development of cardiac tamponade is essential in pediatric patients diagnosed with hypothyroidism.
• This case underscores the importance of considering endocrine disorders in the differential diagnosis of pediatric cardiovascular emergencies.