Hypocalcemic Cardiomyopathy and Pseudohypoparathyroidism Due to Severe Vitamin D Deficiency

Area of Science:

• Cardiology
• Endocrinology
• Biochemistry

Background:

• Hypocalcemic cardiomyopathy is a rare condition.
• Cardiac dysfunction can arise from severe electrolyte imbalances.

Observation:

• A patient presented with severe heart failure, reduced ejection fraction, and global hypokinesia.
• Echocardiogram revealed cardiac abnormalities concurrent with severe hypocalcemia and low vitamin D levels.
• Elevated QT intervals, brain natriuretic peptide (BNP), and creatine phosphokinase (CPK) levels were noted.

Findings:

• All observed cardiac defects and biochemical abnormalities resolved rapidly following treatment with vitamin D and calcium.
• No specific cardiac interventions were required for the patient's recovery.

Implications:

• This case highlights the critical role of calcium and vitamin D in cardiac function.
• Early diagnosis and management of hypocalcemia are crucial for reversing cardiac dysfunction.
• It suggests that hypocalcemic cardiomyopathy is a potentially reversible cause of heart failure.