Related Experiment Videos
[Severe cardiac insufficiency and type Ib pseudohypoparathyroidism]
J L Massing1, E Weber, N Baille
1Service de cardiologie, hôpital Sainte-Blandine, Metz.
Archives Des Maladies Du Coeur Et Des Vaisseaux
|September 7, 2000
Summary
This study presents a rare case of acute heart failure in a young woman caused by severe hypocalcemia due to pseudohypoparathyroidism. Treatment with calcium and Vitamin D reversed the cardiac dysfunction, highlighting a potentially reversible cause of heart failure.
Area of Science:
- Cardiology
- Endocrinology
- Genetics
Background:
- Acute left ventricular failure can present with diverse etiologies.
- Hypocalcemia is a known cause of cardiac dysfunction, typically in pediatric or chronic renal failure populations.
Observation:
- A 28-year-old woman presented with acute left ventricular failure and severe hypocalcemia (1.7 mmol/l).
- Echocardiography revealed dilated, globally hypokinetic cardiomyopathy with a severely depressed ejection fraction (23%).
- Diagnosis was confirmed as sporadic type Ib pseudohypoparathyroidism based on biochemical markers and high parathormone levels.
Findings:
- Conventional treatment alone failed to improve hemodynamics.
- Significant hemodynamic improvement was achieved with the addition of calcium supplements and Vitamin D derivatives (Un-Alfa).
- The observed systolic LV dysfunction was reversible upon correction of hypocalcemia.
Implications:
- This case underscores pseudohypoparathyroidism as a rare but treatable cause of reversible cardiomyopathy.
- Highlights the importance of considering endocrine disorders in unexplained cardiac failure, even in adults without renal compromise.
- Suggests that prompt diagnosis and management of hypocalcemia in pseudohypoparathyroidism can prevent long-term cardiac sequelae.