Doppler flow measurement in coronary artery bypass grafts and early postoperative clinical outcome

The Thoracic and Cardiovascular Surgeon
Yves A G LouagieJ C Schoevaerdts


The present investigation attempts to correlate flow measurements made intraoperatively in coronary bypass grafts with clinical outcome. A total of 352 consecutive patients undergoing isolated coronary artery surgery underwent hemodynamic assessment of their bypass grafts (328 internal thoracic artery and 582 saphenous vein grafts) at the end of cardiopulmonary bypass (CPB) by using a 8 MHz pulsed Doppler ultrasound flowmeter. The total patient population was divided into three groups of distinct outcome (A: normal, 228 patients; B: complicated, 106 patients; C: poor, 18 patients) on the basis of a combination of the following parameters: difficult weaning from bypass, use of inotropic drugs, reduced left-ventricular stroke work index, myocardial infarction, intraaortic balloon counterpulsation, and death of cardiac origin. Univariate analysis has shown clinical outcome to be influenced by preoperative clinical condition and not by flow in bypass grafts (average flow per graft [ml/min] was 60 +/- 2 [mean +/- SEM] in group A, 58 +/- 3 in group B and 43 +/- 6 in group C: NS by analysis of variance). Multivariate analysis (Fisher linear discriminant analysis) selected only the two following factors leading to normal (group A) or a...Continue Reading


May 28, 2005·The Annals of Thoracic Surgery·Yves A G LouagieAndré Gruslin
Sep 23, 2003·The Journal of Thoracic and Cardiovascular Surgery·Christoph SchmitzArmin Welz
Jan 23, 2014·European Journal of Cardio-thoracic Surgery : Official Journal of the European Association for Cardio-thoracic Surgery·Shinya TakahashiTaijiro Sueda
Oct 5, 2011·Surgery Today·Masaki YamamotoTakayuki Sato
May 9, 2014·The International Journal of Artificial Organs·Jessica ForcilloLouis-Mathieu Stevens

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