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Pre-operative Tei Index does not predict left ventricular function immediately after mitral valve repair Full Text
Annals of Cardiac Anaesthesia, 05/02/2012
Mukherjee C et al. – The findings suggest that pre–operative Tei Index is not a good predictor for post–operative ejection fraction (EF) or fractional area change (FAC) in patients undergoing MV repair.
Methods- One hundred and thirty patients undergoing MV repair with sinus rhythm pre- and post-operatively were enrolled in this prospective study.
- Twenty-six patients were excluded due to absence of sinus rhythm post-operatively.
- Standard transesophageal examination(IE 33,Philips,Netherlands) was performed before and after cardiopulmonary bypass according to the guidelines of the ASE/SCA.
- FAC was determined in the transgastric midpapillary short-axis view.
- LV EF was measured in the midesophageal four- and two-chamber view.
- For calculation of the Tei Index, the deep transgastric and the midesophageal four-chamber view were used.
- Statistical analysis was performed with SPSS 17.0. values are expressed as mean with standard deviation.
- LV FAC and EF decreased significantly after MV repair (FAC: 56±12% vs. 50±14%, P<0.001; EF: 58±11 vs. 50±12E P<0.001).
- The Tei Index decreased from 0.66±0.23 before MV repair to 0.41±0.19 afterwards (P<0.001).
- No relationship between pre-operative Tei Index and post-operative FAC or post-operative EF were found (FAC: r=-0.061, P=0.554; EF: r=-0.29, P=0.771).