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Comparação da perviedade entre artéria radial e veia safena em pacientes em pós-operatório de cirurgia de revascularização miocárdica com retorno dos sintomas / Comparison of patency between radial artery and saphenous vein in a coronary artery bypass grafting post operative with return of the symptoms
Hortmann, Herbert Coelho; Oliveira, Homero Geraldo de; Rabello, Renato Rocha; Rocha, Eduardo Augusto Victor; Oliveira, Sérgio Caporali de.
  • Hortmann, Herbert Coelho; SBCCV.
  • Oliveira, Homero Geraldo de; SBCCV.
  • Rabello, Renato Rocha; Hospital Vera Cruz.
  • Rocha, Eduardo Augusto Victor; Hospital Vera Cruz.
  • Oliveira, Sérgio Caporali de; SBCCV.
Rev. bras. cir. cardiovasc ; 25(2): 218-223, abr.-jun. 2010. ilus, tab
Article in Portuguese | LILACS | ID: lil-555868
RESUMO

OBJETIVO:

Comparar a perviedade da artéria radial e veia safena em pacientes com retorno dos sintomas após cirurgia de revascularização do miocárdio (CRVM).

MÉTODOS:

Estudo retrospectivo. No período de janeiro de 1998 a dezembro de 2005, foram realizadas 469 CRVMs com o uso da artéria radial dentre os enxertos, no Hospital Vera Cruz, em Belo Horizonte/MG. Destes, 94 pacientes apresentaram alterações isquêmicas no pós-operatório recente ou tardio e foram reestudados com cineangiocoronariografia. Os enxertos foram divididos em três grupos artéria torácica interna (ATI), artéria radial (AR) e veia safena (VS), e foram estratificados segundo a gravidade das lesões sem lesão grave (<70 por cento), obstrução grave (70 por cento a 99 por cento) e oclusão.

RESULTADOS:

Nos 94 pacientes reestudados, foram utilizados 86 enxertos de ATI, 94 de AR e 111 de VS. Dos 86 enxertos de ATI, 73 (84,88 por cento) se encontravam sem lesões graves; dos 94 enxertos de AR eram 55 (58,51 por cento) e dos 111 enxertos de VS, 73 (65,76 por cento) estavam livre de lesões graves. Houve diferença estatística (P= 0,001) entre os enxertos de AR e VS com maior perviedade da VS. As mulheres apresentaram pior resultado quanto à perviedade da AR (65,7 por cento e 40,7 por cento) com P= 0,006. Quanto à artéria coronária revascularizada, houve diferença entre os enxertos usados para artéria coronária direita, com melhor resultado da VS (P= 0,036).

CONCLUSÃO:

A AR mostrou-se com pior resultado que a VS como segundo enxerto na CRVM, principalmente em mulheres e quando anastomosada na coronária direita.
ABSTRACT

OBJECTIVE:

To compare the radial artery and saphenous vein's patency in patients with recurrence of symptoms in a coronary artery bypass grafting (CABG).

METHODS:

Retrospective study. From January 1998 to December 2005, 469 CABGs were performed using the radial artery as a graft, in Vera Cruz Hospital in Belo Horizonte/ MG. Among the patients who underwent those surgeries, 94 presented ischemic changes in early or late postoperative period, which led them to be re-evaluated by coronary angiography. The grafts were divided in three groups internal thoracic artery (ITA), radial artery (RA) and saphenous vein (SV), and they were stratified according to the severity of injury uninjured or patent (< 70 percent), severe obstruction (70 to 99 percent) and occlusion.

RESULTS:

For the 94 patients in the study, 86 grafts of ITA, 94 of RA and 111 of SV were used. For the 86 ITA grafts, 73 (84.88 percent) were found patent. For the 94 RA grafts, 55 (58.51 percent) were found patent, and for the 111 SV grafts, 73 (65.76 percent) were uninjured. A statistically significant difference (P= 0.001) was found between RA and SV grafts, with a higher patency found for VS graft. For the RA grafts, women presented a worse result concerning the RA patency (65.7 percent and 40.7 percent), with P = 0.006. Concerning coronary revascularization, a statistically significant difference was found only for the grafts used for the right coronary, with a better result for the SV (P = 0.036).

CONCLUSION:

Radial artery (RA) presented worse results when compared to Saphenous vein (SV) as a second graft in a CABG, especially in women who were anastomosed in the right coronary artery.
Subject(s)

Full text: Available Index: LILACS (Americas) Main subject: Saphenous Vein / Coronary Artery Bypass / Radial Artery / Coronary Restenosis / Graft Occlusion, Vascular Type of study: Diagnostic study / Observational study Limits: Adult / Aged / Female / Humans / Male Language: Portuguese Journal: Rev. bras. cir. cardiovasc Journal subject: Cardiology / General Surgery Year: 2010 Type: Article Affiliation country: Brazil

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Full text: Available Index: LILACS (Americas) Main subject: Saphenous Vein / Coronary Artery Bypass / Radial Artery / Coronary Restenosis / Graft Occlusion, Vascular Type of study: Diagnostic study / Observational study Limits: Adult / Aged / Female / Humans / Male Language: Portuguese Journal: Rev. bras. cir. cardiovasc Journal subject: Cardiology / General Surgery Year: 2010 Type: Article Affiliation country: Brazil