P. S. Halvorsen, L. A. Fleischer, A. Espinoza, O. J. Elle, L. Hoff, H

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Presentation transcript:

Detection of myocardial ischaemia by epicardial accelerometers in the pig P.S. Halvorsen, L.A. Fleischer, A. Espinoza, O.J. Elle, L. Hoff, H. Skulstad, T. Edvardsen, E. Fosse British Journal of Anaesthesia Volume 102, Issue 1, Pages 29-37 (January 2009) DOI: 10.1093/bja/aen331 Copyright © 2009 British Journal of Anaesthesia Terms and Conditions

Fig 1 A schematic representation of the anterior view of the LV showing the position of two three-axis accelerometers, one in the LAD perfusion area and one in the CX perfusion area. The directions of the measured epicardial motions are indicated with arrows. X-arrow specifies longitudinal motion, Y-arrow circumferential motion, and Z-arrow radial epicardial motion. The level of LAD occlusion is also indicated. British Journal of Anaesthesia 2009 102, 29-37DOI: (10.1093/bja/aen331) Copyright © 2009 British Journal of Anaesthesia Terms and Conditions

Fig 2 Representative curves of LV apical accelerometer circumferential velocity, echocardiography circumferential 2D strain and pressures (LV, aorta and left atrium), LV dP/dtmax and ECG at baseline and after 1 min of LAD occlusion. Vsys, peak early systolic velocity; Vivr, velocity in the isovolumic relaxation phase. British Journal of Anaesthesia 2009 102, 29-37DOI: (10.1093/bja/aen331) Copyright © 2009 British Journal of Anaesthesia Terms and Conditions

Fig 3 Individual changes in circumferential 2D strain and accelerometer circumferential peak systolic velocity for the LV apical anterior region, at baseline and after 1 min of LAD occlusion. British Journal of Anaesthesia 2009 102, 29-37DOI: (10.1093/bja/aen331) Copyright © 2009 British Journal of Anaesthesia Terms and Conditions