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a comparative study on traditional versus laser assisted internal mammary artery-left anterior descending coronary artery bypass grafting
Pages: 214-216
Year: Issue:  3
Journal: China Medical Abstracts

Abstract: Objective To clarify the reliability for pressure tolerance after LA-IMA-LAD bypass grafting.Methods Eight sheep underwent thoracotomy and left IMA harvest.In group I(T) the IMA were anastomosed to left anterior descending artery(LAD) with 7-0 prolene suture(n=4) and in group Ⅱ(LA)IMA were anastomosed to LAD with laser.Results The time required for laser technique was shorter than that required in suturing technique [117.5±39.48min(total) and 38.25±6.23min vs 62.5±37.83min(total) and 20±6.53min respectively](P<0.01).Prior to closing thoracotomy both groups endured the impact of pharmacologic vasopressor.No leakage at the anastomosed site was observed in both groups.After the closure of thoracotomy,well tolerance for both adrenalin and thoracic negative pressure was observed in the two groups.The peak systolic pressure induced by pharmacologic agent was similar in both groups.Neither stenosis nor thrombus or embolism was observed and immediate patency rate in both groups was 100%.Conclusion Laser assisted technique seems to be reliable and could lead to better result after coronary artery bypass grafting(CABG).
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