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Left ventricular TEI index: comparison between flow and tissue Doppler analyses and its association with postoperative atrial fibrillation in cardiopulmonary bypass surgery

Jose Luis Iribarren, Cayetano Naranjo, M Mora, R Galván, R Pérez, Leila Anna De Lorenzo, M Brouard, A Barragan, Ignacio Laynez, J Jiménez

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Abstract

The TEI index (myocardial performance index), an indicator of combined ventricular systolic and diastolic function, is defined as the ratio of the sum of the isovolumic relaxation time and the isovolumic contraction time. The TEI index is independent of ventricular geometry, and is not significantly affected by heart rate or blood pressure. We sought to determine whether there was association with postoperative atrial fibrillation (AF) after cardiopulmonary bypass surgery.

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The TEI index (myocardial performance index), an indicator of combined ventricular systolic and diastolic function, is defined as the ratio of the sum of the isovolumic relaxation time and the isovolumic contraction time. The TEI index is independent of ventricular geometry, and is not significantly affected by heart rate or blood pressure. We sought to determine whether there was association with postoperative atrial fibrillation (AF) after cardiopulmonary bypass surgery.

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Available abstract

The TEI index (myocardial performance index), an indicator of combined ventricular systolic and diastolic function, is defined as the ratio of the sum of the isovolumic relaxation time and the isovolumic contraction time. The TEI index is independent of ventricular geometry, and is not significantly affected by heart rate or blood pressure. We sought to determine whether there was association with postoperative atrial fibrillation (AF) after cardiopulmonary bypass surgery.

Key concepts: Medicine, Cardiopulmonary bypass, Cardiology, Atrial fibrillation, Internal medicine, Cardiac surgery, Ventricular fibrillation, Doppler effect

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Left ventricular TEI index: comparison between flow and tissue Doppler analyses and its association with postoperative atrial fibrillation in cardiopulmonary bypass surgery — Research Paper | ScholarLens