Ultrasonic assessment of competitive blood flow after coronary artery bypass grafting
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Abstract:
Objective:To reveal the direct sign of competitive blood flow between the Left Internal Mammary Artery(LIMA) graft and native Left Anterior Descending artery(LAD).To summarize the flow dynamics characteristics.To find the reason of competitive blood flow and clinical significance.Methods:75 patient who had undergone coronary artery bypass grafting(CABG) were examined by color Doppler of coronary flow imaging(CDCFI) and peripheral blood vessel ultrasound almost 1 week postoperatively.The proximal and distal of the LIMA graft,anastomosis,and proximal and distal LAD were examined.Results:7 patients have competitive blood flow after CABG.Both LAD and LIMA graft showed mainly antegrade flow by CDCFI.The proximal portion of the LIMA showed a dominant systolic flow pattern by Ultrasound.Conclusion:CDCFI could reveal the direct sign of competitive blood flow between LIMA graft and native LAD.It could provide the evi-dence of indication of CABG if Summed up the reason of competitive blood flow.Cite