Additional improvement in regional myocardial ischemia after intracardiac injection of bone marrow cells during CABG surgery
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Citações na Scopus
1
Tipo de produção
article
Data de publicação
2023
Título da Revista
ISSN da Revista
Título do Volume
Editora
FRONTIERS MEDIA SA
Autores
SCHETTERT, Isolmar Tadeu
BRITO, Jose Oscar Reis
GUARITA-SOUZA, Luiz Cesar
Citação
FRONTIERS IN CARDIOVASCULAR MEDICINE, v.10, article ID 1040188, 8p, 2023
Resumo
Background: Post-procedure residual ischemia is associated with worse prognosis in patients with coronary artery diasease (CAD).Objective: We evaluated whether autologous bone marrow-derived cells (BMC) contribute to additional reduction in regional stress-induced myocardial ischemia (SIMI) in patients undergoing incomplete coronary artery bypass graft surgery (CABG).Methods: In a double-blind, randomized, placebo-controlled trial, we enrolled 143 patients (82% men, 58 & PLUSMN; 11 years) with stable CAD and not candidates for complete CABG. They received 100 million BMC (n = 77) or placebo (n = 66) injected into ischemic non-revascularized segments during CABG. The primary outcome was improvement on SIMI quantified as the area at risk in injected segments assessed by cardiovascular magnetic resonance (CMR) 1, 6, and 12 months after CABG.Results: The reduction in global SIMI after CABG was comparable (p = 0.491) in both groups indicating sustained beneficial effects of the surgical procedure over 12 month period. In contrast, we observed additional improvement in regional SIMI in BMC treated group (p = 0.047). Baseline regional SIMI values were comparable [18.5 (16.2-21.0) vs. 18.5 (16.5-20.7)] and reached the lowest values at 1 month [9.74 (8.25; 11.49) vs. 12.69 (10.84; 14.85)] for BMC and placebo groups, respectively. The ischemia's improvement from baseline represented a 50% difference in regional SIMI in favor of the BMC transplanted group at 30 days. We found no differences in clinical and LVEF% between groups during the 12 month follow-up period. The 1 month rate of major adverse cerebral and cardiovascular events (MACCE) (p = 0.34) and all-cause mortality (p = 0.08) did not differ between groups 1 month post intervention.Conclusion: We provided evidence that BMC leads to additional reduction in regional SIMI in chronic ischemic patients when injected in segments not subjected to direct surgical revascularization. This adjuvant therapy deserves further assessment in patients with advanced CAD especially in those with microcirculation dysfunction.
Palavras-chave
myocardial ischemia, coronary artery disease, bone marrow cells, coronary artery bypass graft surgery (CABG), cardiovascular magnetic resonance, stress induced myocardial ischemia
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Coleções
Artigos e Materiais de Revistas Científicas - FM/MCP
Artigos e Materiais de Revistas Científicas - HC/InCor
Artigos e Materiais de Revistas Científicas - LIM/11
Artigos e Materiais de Revistas Científicas - LIM/13
Artigos e Materiais de Revistas Científicas - LIM/64
Artigos e Materiais de Revistas Científicas - ODS/03
Artigos e Materiais de Revistas Científicas - HC/InCor
Artigos e Materiais de Revistas Científicas - LIM/11
Artigos e Materiais de Revistas Científicas - LIM/13
Artigos e Materiais de Revistas Científicas - LIM/64
Artigos e Materiais de Revistas Científicas - ODS/03