RESUMO
The main place among cardiovascular diseases takes coronary heart disease. The number of coronary artery bypass surgery increases every year. The large number of coronary artery bypass grafting (CABG) performed worldwide. The need for assessment of grafts patency is enormous. OBJECTIVE: We are performed analyze of graft patency results, after CABG surgery in our clinic. MATERIALS AND METHODS: This paper presents the results of a retrospective analysis of angiographic graft patency data depends of TIMI flow, Syntax score, diameter and degree of vascular lesions, as well as the surgery type. RESULTS: According angiographic data of 142 patients, we found that 74 (52.1 %) had no graft dysfunction. In the 68 (47.9 %) patients had various types graft dysfunction which is 3.0 % of the total number of operated patients in our center for coronary heart disease. 31 (46 %) patients were operated under Off pump, 19 (28 %) - On pump and 18 (26 %) - in a parallel bypass technic. According to our data parameters such as Syntax score, the diameter of the vessel and the percentage of lesion, its did not significantly affect the grafts patency in terms of up to 12,7±6,5 months. Preoperative coronary blood flow (assessed by TIMI scale) the significantly affects the grafts patency. CONCLUSIONS: In the graft patency for perioperative period and follow-up, significantly affected preoperative coronary blood flow assessed by TIMI. The results of beating heart (off pump and using a parallel IR) and On pump surgery similar in the immediate postoperative period. But there is tend to increase graft dysfunction in up to 30 months in patients after off pump surgery. We don't found relation between Syntax score, the diameter of the coronary arteries, the percentage of stenosis and graft patency after 12 months follow-up.
