Journal
CIRCULATION-CARDIOVASCULAR INTERVENTIONS
Volume 4, Issue 1, Pages 15-25Publisher
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1161/CIRCINTERVENTIONS.110.955724
Keywords
autologous bone-marrow mononuclear cell; critical limb ischemia; peripheral arterial disease; Buerger disease
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Funding
- Ministry of Education, Science, and Culture of Japan [1859081500, 21590898]
- Grants-in-Aid for Scientific Research [21590898, 23593074, 21592404] Funding Source: KAKEN
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Background-Bone-marrow mononuclear cell (BM-MNC) implantation improves ischemic symptoms in patients with critical limb ischemia (CLI). The purpose of this study was to evaluate long-term clinical outcomes after autologous BM-MNC implantation in patients with CLI. Methods and Results-We assessed long-term clinical outcomes after BM-MNC implantation in 51 patients with CLI, including 25 patients with peripheral arterial disease (PAD) and 26 patients with Buerger disease. Forty-six CLI patients who had no BM-MNC implantation served as control subjects. Median follow-up period was 4.8 years. The 4-year amputation-free rates after BM-MNC implantation were 48% in PAD patients and 95% in Buerger disease, and they were 0% in control PAD patients and 6% in control Buerger disease. The 4- year overall survival rates after BM-MNC implantation were 76% in PAD patients and 100% in Buerger disease, and they were 67% in control PAD patients and 100% in control Buerger disease. Multivariable Cox proportional hazards analysis revealed that BM-MNC implantation correlated with prevention of major amputation and that hemodialysis and diabetes mellitus correlated with major amputation. In Buerger disease, ankle brachial pressure index and transcutaneous oxygen pressure were significantly increased after 1 month and remained high during 3-year follow-up. However, in patients with PAD, ankle brachial pressure index and transcutaneous oxygen pressure significantly increased after 1 month and gradually decreased during 3-year follow-up and returned to baseline levels. Conclusions-These findings suggest that BM-MNC implantation is safe and effective in patients with CLI, especially in patients with Buerger disease.
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