Remodelamento da artéria torácica interna direita: novo método de análise pela área coronariana revascularizada Remodeling of the right internal thoracic artery: new method of analysis using the coronary area grafted
| Autor: | Bruno da Costa Rocha, Luiz Boro Puig, Eulógio Emílio Matinez Filho, Sérgio Almeida de Oliveira |
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| Jazyk: | angličtina |
| Rok vydání: | 2006 |
| Předmět: | |
| Zdroj: | Brazilian Journal of Cardiovascular Surgery, Vol 21, Iss 2, Pp 143-148 (2006) |
| Druh dokumentu: | article |
| ISSN: | 0102-7638 1678-9741 |
| DOI: | 10.1590/S0102-76382006000200006 |
| Popis: | OBJETIVO: Avaliar os fatores angiográficos no remodelamento da artéria torácica interna (ATI) direita por novo método quantitativo com a área coronariana revascularizada. MÉTODO: No período entre janeiro de 1992 e 2002, 452 pacientes foram submetidos à revascularização do miocárdio (RM) com ATI bilateral. Desta amostra, 32 pacientes com ponte de ATI direita "in situ" pelo seio transverso foram reestudados por meio de cineangiocoronariografia (CATE). Os filmes foram analisados na plataforma CASS II®. Quanto aos critérios angiográficos, foram medidos os diâmetros proximal e distal das ATIs, área coronariana da artéria revascularizada, pontuação pela escala de fluxo de TIMI, diâmetro de estenose proximal, dominância de fluxo e presença de ramos acessórios patentes. RESULTADOS: O período médio de acompanhamento foi de 42 meses, variando de 6 a 204 meses. As medidas da ATID proximal foram de 2,639 mm ± 0,09 e distal de 2,159 mm ± 0,1 (pOBJECTIVE: To analyze angiographic factors related to remodeling of the right internal thoracic artery (RITA) using a new quantitative technique of the target coronary grafting area. METHOD: In the period from January 1992 to 2002, 452 consecutive patients were submitted to coronary artery bypass grafting (CABG) with RITA "in situ" through the transverse sinus. In this sample, 32 patients were submitted to at least one postoperative coronariography study after receiving RITA grafts. The studies were analyzed by the CASS II® software. The angiographic criteria assessed were the proximal and distal diameters of the RITA, coronary area irrigated by the target vessel, TIMI flow score, quantitative coronary angiography(QCA), dominant flow grade and the existence of patent lateral branches of the RITA. RESULTS: The mean follow-up period was 42 months, ranging from 6 to 204 months. The mean proximal diameter of the RITA was of 2.639 mm ± 0.09 and the distal diameter was 2.159 mm ± 0.1 (p < 0.001). The coronary irrigated by the target marginal branch presented a ß coefficient of 0.424 (p=0.001) and diameter of the stenosis (QCA) of the marginal branch gave a ß coefficient of 0.55 (p=0.001) adjusted by weight, height, time surgery/study, TIMI flow score, angina functional class and systemic hypertension. Multiple regression modeling demonstrated an adjusted R2 of 0.696 (p |
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