Frequent change of procedure during coronary artery bypass surgery suggests insufficient preoperative diagnostic strategy

a Department of Cardiothoracic Surgery, Institute of Clinical Research, Odense University Hospital, 5000 Odense C, Denmark b Department of Cardiology, Odense University Hospital, Odense, Denmark c Department of Statistics, University of Southern Denmark, Odense, Denmark d Department of Nuclear Medicine, Odense University Hospital, Odense, Denmark *Corresponding author. Tel.: +45 6541 2408; fax: +45 6591 6935. E-mail address : rozy.eckardt{at}ouh.fyns-amt.dk (R. Eckardt). We sought to evaluate how often and in what way surgeons change peroperatively their preoperative coronary artery bypass grafting strategy and to what degree these changes affect postoperative graft patency. A series of 109 patients with stable angina pectoris and at least one occluded coronary artery participated. The surgeon filled in a questionnaire pertaining to the planned localization and number of grafts. These estimates were compared to procedures actually performed and with the angiographic outcome six months after bypass surgery. Planned and actually inserted grafts disclosed a discrepancy in 22% of the patients, resulting in a lower or higher number of grafts than pre-operatively estimated. The difference in shift rates between the three sites, left anterior descending, left circumflex, and right coronary artery, was significant ( P =0.014). Patency rates were highest when only preoperatively planned grafts were inserted. When shifts occurred, no matter in which direction, it resulted in a decreased patency rate of the inserted grafts. This finding was significant for LAD ( P =0.037). Our findings might indicate the necessity of future studies with the use of scintigraphy or fractional flow reserve as physiological adjuncts to angiography for more targeted revascularization. Key Words: Coronary disease; Revascularization; Graft patency Related Articles ICVTS on-line discussion A Anatomofunctional information is obligatory for CAD patients Leo A. Bockeria and Ilia Berishvili Interactive CardioVascular and Thoracic Surgery 2007 6: 302-303. [Full Text] [PDF] ICVTS on-line discussion A1 Additional TMR procedure Rozy Eckardt Interactive CardioVascular and Thoracic Surgery 2007 6: 303. [Full Text] [PDF]