A Characteristic Electrocardiographic Manifestation Suggests Hypercalcemia

Area of Science:

• Cardiology
• Clinical Diagnostics

Background:

• Hypercalcemia is a condition with potential cardiac implications.
• Electrocardiographic (ECG) changes, particularly T-wave alterations, are being explored as diagnostic markers.

Purpose of the Study:

• To investigate ECG alterations in hypercalcemia.
• To evaluate T-wave changes as diagnostic indicators for hypercalcemia.

Main Methods:

• Retrospective observational study.
• Analysis of ECG data from 64 hypercalcemic patients and 956 normocalcemic controls.

Main Results:

• 78.13% of hypercalcemic patients showed T-wave alterations versus 14.64% in controls (p < 0.001).
• Hypercalcemic patients had shorter QT, QTc, and QTm intervals (p < 0.01).
• T-wave alterations demonstrated higher diagnostic accuracy (78.12% sensitivity, 97.28% specificity) than QT shortening.

Conclusions:

• Characteristic T-wave alterations are frequent in hypercalcemia.
• ECG T-wave analysis is a reliable diagnostic tool for hypercalcemia.
• Integrating ECG into routine practice can aid early hypercalcemia detection and management.