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European Journal of Cardio-Thoracic Surgery, Vol 7, 220-222, Copyright © 1993 by European Association for Cardio-thoracic Surgery

ARTICLES

Coronary artery anastomotic contour--a method for individual surgeons to assess their suture techniques

LC John, SJ Edmondson and GM Rees
Department of Cardiothoracic Surgery, St. Bartholomews Hospital, West Smithfield, London, UK.

A method is described whereby individual surgeons may monitor their coronary graft suturing techniques. The coronary artery anastomotic contour is measured quantitatively in corrosion resin cast models made of anastomoses between long saphenous vein and the left anterior descending coronary artery of a pig's heart. The relevant parameter assessing the contour is the mean anastomotic narrowing expressed as a percent (MAN%). To provide an example of the potential of the method, a single surgeon compared a continuous suture technique (n = 30) with an interrupted one (n = 30) using corrosion resin models. There was significantly less (P < 0.05) narrowing of the anastomotic contour with the interrupted technique (mean MAN% = 0.3 +/- 2.9) than with the continuous (mean MAN% = 10.5 +/- 3).

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