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Autologous Bone Marrow Cell Transplantation Combined with Off-pump Coronary Artery Bypass Grafting in Ischemic Myocardium  

김현옥 (연세대학교 의과대학 진단검사의학교실)
곽영란 (연세대학교 의과대학 마취통증의학교)
강석민 (연세대학교 의과대학 내과학교)
장양수 (연세대학교 의과대학 내과학교)
임상현 (연세대학교 의과대학 흉부외과학교실, 심혈관연구)
안지영 (연세대학교 의과대학 흉부외과학교실, 심혈관연구)
이창영 (연세대학교 의과대학 흉부외과학교실, 심혈관연구)
강면식 (연세대학교 의과대학 흉부외과학교실, 심혈관연구)
유경종 (연세대학교 의과대학 흉부외과학교실, 심혈관연구소)
Publication Information
Journal of Chest Surgery / v.37, no.7, 2004 , pp. 547-552 More about this Journal
Abstract
Recently, autologous bone marrow cell transplantation (CTx) for angiogenesis and myogenesis in ischemic myocardium has been extensively investigated to improve heart functions. This study was designed to evaluate the effects of CTx with off-pump coronary artery bypass grafting (OPCAB) in patients who were not feasible for complete revascularization. Material and Method: Four male patients underwent CTx and OPCAB simultaneously. Bone marrow was aspirated from iliac bone. Mean 1.5 ${\times}$ 10$^{9}$ mononuclear cells including mean 6.7 ${\times}$ 10$^{6}$ CD34 + cells and 3.7 ${\times}$ 10$^{6}$ AC133 + cells were obtained and concentrated with 10 cc. These cells were transplanted into non-graftable ischemic myocardium after OPCAB. The heart function of all patients were evaluated using the MIBI scan, echocardiogram and MRI preoperatively. The effects of CTx was evaluated using MIBI scan and echocardiogram at 1 month postoperatively. Result: An average of 2 grafts were bypassed to left anterior descending artery territory. Other territories were transplanted with isolated mononuclear cell. All patients had uncomplicated postoperative course. After 1 month follow up, there were improvement in symptom, ejection fraction (from 49% to 55%) on echocardiogram and myocardial perfusion on MIBI scan in all patients. Conclusion: These preliminary data showed improvement of heart function and myocardial perfusion and also showed the feasibility and safety of combined therapy with OPCAB and CTx in ischemic myocardium. However, the effectiveness of CTx alone cannot be readily assessed. Further randomized, controlled studies are required to evaluate the effectiveness of CTx alone.
Keywords
Ischemic heart disease; Coronary artery bypass; Cell transplantation; Myocardial infarction;
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