Hypercalcemia can cause characteristic changes on the electrocardiogram (ECG), reflecting faster electrical conduction and ventricular repolarization due to increased blood calcium levels.

Electrocardiographic Changes

  • QT interval shortening, mainly at the expense of a shorter ST segment

ECG in Hypercalcemia

Electrocardiogram in hypercalcemia

Hypercalcemia. This electrolyte disturbance shortens the QT interval.

References

  1. Scheffer MK, De Marchi MFN, de Alencar Neto JN, Felicioni SP. Eletrocardiograma de A a Z. São Paulo: Manole, 2024.