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Global Longitudinal Strain Early Change Index (GLS-ECI) Calculator
Global Longitudinal Strain Early Change Index (GLS-ECI): Explanation and Clinical Context The Global Longitudinal Strain Early Change Index (GLS-ECI) is a sensitive echocardiographic measure used to detect early myocardial dysfunction before overt changes in left ventricular ejection fraction occur. It is calculated as the percentage change between baseline GLS and follow-up GLS: GLS-ECI (%) = (Follow-up GLS − Baseli