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Effectiveness of MDCT for the Followup of CABG Patients with LIMA to LAD and Saphenous Veins to Others  

Kang Joon Kyu (Department of Thoracic and Cardiovascular Surgerym, Ajou University School of Medicine)
Kim Hyung Tai (Department of Thoracic and Cardiovascular Surgerym, Ajou University School of Medicine)
Park In Duk (Department of Thoracic and Cardiovascular Surgerym, Ajou University School of Medicine)
Chung Young Mi (Department of Thoracic and Cardiovascular Surgerym, Ajou University School of Medicine)
Lee Cheol Joo (Department of Thoracic and Cardiovascular Surgerym, Ajou University School of Medicine)
Publication Information
Journal of Chest Surgery / v.38, no.6, 2005 , pp. 410-414 More about this Journal
Abstract
There are several options for choosing a graft in CABG, we routinely chose LIMA for LAD and great saphenous vein for other target vessels. To evaluate the posoperative graft patency, we have studied the results using a 16 slices multi-detector computed tomography. Material and Method: From 1995 to 2003, 80 CABG patients who did not complain any event of MACE have been examined by 16-MDCT, mostly in an out patient clinic. Result: There were 61 men and 19 women. MDCT was used as early as 7 days to 9 years post-operatively with a median follow-up period of 6.5 years, and mean follow-up peiod of $31.5\pm25.4$ months. Mean age was $58.4\pm12.6$ years old in men and $61.5\pm17.2$ years old in women. 72180 patients received LIMA to LAD, and all other patients received vein grafts for bypass. The target vessel of vein grafts were 8 in LAD, 47 in RCA, 60 in diagonals, and 61 in obtuse marginals. Among them 42 sequential anastomoses were performed. The mean graft number was $3.1\pm1.8$ grafts. 5 year graft patency rate of each grafts was as followings; $93.1\%$ in LIMA to LAD, $94.9\%$ in vein to diagonals, $92.1\%$ in vein to obtuse marginals, and $79.2\%$ in vein to RCA. Sequential grafting showed better graft patency than the isolated grafting $(95.2\%\;vs\;78.7\~95.0\%)$. Conclusion: In this study, CABG with LIMA and saphenous veins showed satisfactory longterm results. 16-MDCT provided good images for follow-up study after CABG. Additionally, as radiologic tools (64-MDCT, MRI) improve more in the future, they can be used for diagnosing preoperative anatomical coronary disease as well as cardiac functions.
Keywords
Coronary antery bypass; Internal mammary antery; Saphenous vein; Computed tomography;
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