Why the study?
Do QT intervals correlate with serum calcium concentrations and predict hypercalcemia?
Population
9 hypercalcemic (s-Ca > 11 mg/dl) patients and 50 outpatients with no cardiac disease (total n=59).
Comparison
Electrocardiogram recordings to measure QT… vs Normal serum calcium levels.
Design
Cross-sectional
Authors
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QoTc may support ECG detection of hypercalcemia; cross-sectional data leave open prospective validation before clinical adoption.
Do QT intervals correlate with serum calcium concentrations and predict hypercalcemia?
The QoTc interval is a highly specific and sensitive electrocardiographic marker for predicting hypercalcemia.
Saikawa et al. (1988) studied this question.
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