Iatrogenic neonatal hypertrophic cardiomyopathy

Area of Science:

• Neonatal Medicine
• Pediatric Cardiology
• Endocrinology

Background:

• Glucocorticoids and insulin are commonly used in neonatal care.
• Excessive levels of these hormones can lead to adverse effects.
• Hypertrophic cardiomyopathy is a potential, though rare, complication.

Observation:

• Two extremely low birth weight (ELBW) infants were treated concurrently with glucocorticoids and insulin.
• Both infants developed transient hypertrophic cardiomyopathy.
• Echocardiography revealed significant cardiac changes.

Findings:

• The hypertrophic cardiomyopathy was an iatrogenic complication of the combined hormone therapy.
• Cardiac function normalized completely in both infants upon cessation of glucocorticoid and insulin administration.
• This suggests a direct causal link between the therapy and the observed cardiomyopathy.

Implications:

• Caution is advised when administering concurrent glucocorticoid and insulin therapy in ELBW infants.
• Regular echocardiographic monitoring is crucial for early detection of cardiac complications.
• Understanding this iatrogenic risk can guide safer therapeutic strategies in vulnerable neonates.