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Hypocalcemic heart failure: a reversible form of heart muscle disease
T Suzuki1, U Ikeda, H Fujikawa
1Department of Cardiology, Jichi Medical School, Tochigi, Japan.
Insights
Hypocalcemia, a calcium deficiency, can cause reversible cardiomyopathy and heart failure. Prompt diagnosis and treatment are crucial for recovery, even if heart dysfunction persists initially.
Area of Science:
- Cardiology
- Endocrinology
- Internal Medicine
Background:
- Cardiomyopathy is a significant cause of heart failure.
- Hypocalcemia is a condition characterized by low serum calcium levels.
- Idiopathic hypoparathyroidism is a rare endocrine disorder leading to hypocalcemia.
Observation:
- A 53-year-old woman presented with symptoms suggestive of heart failure.
- Laboratory investigations revealed severe hypocalcemia due to idiopathic hypoparathyroidism.
- The patient exhibited persistent left ventricular dysfunction despite initial calcium level normalization.
Findings:
- The case highlights a direct link between hypocalcemia and reversible cardiomyopathy.
- Idiopathic hypoparathyroidism was identified as the underlying cause of hypocalcemia.
- Prolonged left ventricular dysfunction was observed, emphasizing the need for sustained monitoring.
Implications:
- Physicians should consider hypocalcemia as a potential reversible cause of cardiomyopathy.
- Early detection and management of hypocalcemia are critical in preventing or reversing cardiac dysfunction.
- This case underscores the importance of comprehensive metabolic workups in patients with unexplained heart failure.
Abstract:
This paper reports the case of a 53-year-old woman with hypocalcemia-induced reversible cardiomyopathy. Laboratory tests showed hypocalcemia caused by idiopathic hypoparathyroidism. Her left ventricular dysfunction persisted for a long period even after normalization of the serum calcium level. Observations suggest that physicians should be aware that hypocalcemia can be a reversible cause of cardiomyopathy and congestive heart failure.