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Intraoperative anastomotic site detection and assessment of LIMA-to-LAD anastomosis by epicardial ultrasound in off-pump coronary artery bypass grafting - A prospective single-blinded study


Department of cardiac anesthesia and cardiac surgery, Sri Ramachandra Medical College, Porur, Chennai, India

Correspondence Address:
Harish Babu Ravulapalli
Sri Ramachandra Medical College, Porur, Chennai
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0971-9784.69069

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Year : 2010  |  Volume : 13  |  Issue : 3  |  Page : 231-235

 

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The study was done to detect the optimal site of left anterior descending (LAD) artery for grafting and for the assessment of geometrical and anatomical characteristics of left internal mammary artery (LIMA)-to-LAD artery anastomosis in elective off-pump coronary artery bypass grafting surgery. Fifteen consecutive patients who underwent coronary artery bypass graft (CABG) were included in the study. All the operations were performed by a single surgeon. Epicardial ultrasound probe was placed at the site of grafting for scanning and the site of anastomosis selected. The anticipated target site selected by the surgeon was scanned for patency, size, septal perforator branches, and presence of plaque and calcification. The surgeon identified the LAD artery in 12 patients. In three patients, the LAD artery was not visible. However, with epicardial ultrasound, the LAD artery was identified in all patients. In 6 of 15 patients, the anticipated target anastomotic site was changed to a clear segment either due to the presence of perforators or plaques or calcifications. In all 15 patients, the surgeon scored the anastomosis as good, based on his or her experience independent of the ultrasound image. The anastomotic score by the cardiac anesthesiologist showed 5 anastomoses with satisfactory results and 10 anastomoses with good results. The study demonstrates that epicardial ultrasound scanning with a 10-MHz transducer provides reliable information in choosing the proper anastomotic site and allows proper visualization of LIMA-to-LAD anastomosis. All these measurements are easily obtained without risk of any complications and the method is not time consuming.






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Department of cardiac anesthesia and cardiac surgery, Sri Ramachandra Medical College, Porur, Chennai, India

Correspondence Address:
Harish Babu Ravulapalli
Sri Ramachandra Medical College, Porur, Chennai
India
Login to access the Email id

Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0971-9784.69069

Rights and Permissions

The study was done to detect the optimal site of left anterior descending (LAD) artery for grafting and for the assessment of geometrical and anatomical characteristics of left internal mammary artery (LIMA)-to-LAD artery anastomosis in elective off-pump coronary artery bypass grafting surgery. Fifteen consecutive patients who underwent coronary artery bypass graft (CABG) were included in the study. All the operations were performed by a single surgeon. Epicardial ultrasound probe was placed at the site of grafting for scanning and the site of anastomosis selected. The anticipated target site selected by the surgeon was scanned for patency, size, septal perforator branches, and presence of plaque and calcification. The surgeon identified the LAD artery in 12 patients. In three patients, the LAD artery was not visible. However, with epicardial ultrasound, the LAD artery was identified in all patients. In 6 of 15 patients, the anticipated target anastomotic site was changed to a clear segment either due to the presence of perforators or plaques or calcifications. In all 15 patients, the surgeon scored the anastomosis as good, based on his or her experience independent of the ultrasound image. The anastomotic score by the cardiac anesthesiologist showed 5 anastomoses with satisfactory results and 10 anastomoses with good results. The study demonstrates that epicardial ultrasound scanning with a 10-MHz transducer provides reliable information in choosing the proper anastomotic site and allows proper visualization of LIMA-to-LAD anastomosis. All these measurements are easily obtained without risk of any complications and the method is not time consuming.






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