Insuficiencia cardiaca secundaria a hipocalcemia asociada a hipoparatiroidismo: reporte de un caso

Heart failure due to hypocalcemia is a strange presentation of metabolic heart disease; it is reversible in most cases, and secondary to endocrinal alterations that cause the persistent decrease in serum calcium, such as hypoparathyroidism. A case of a 23-year-old woman who was diagnosed with severe heart failure is presented. During her hospitalization, there was evidence of symptoms associated with hypocalcemia, secondary to hypoparathyroidism, so the patient was treated with replacement of calcium immediately. To prevent the risk of sudden death, by the persistent prolongation of the Q-T interval, an implantable cardiac defibrillator was placed; however, after 6 months of treatment, despite oral calcium supplementation, there was no improvement in the ejection fraction, determining an uncertain prognosis of the disease.