RESUMO
INTRODUCTION: In this study, we aimed to evaluate the most common causes of recurrent angina after coronary artery bypass grafting (CABG) and our treatment approaches applied in these patients. METHODS: We included all patients who underwent CABG, with or without percutaneous coronary intervention after CABG, at our hospital from September 2013 to December 2019. Patients were divided into two groups according to the time of onset of anginal pain after CABG. Forty-five patients (58.16 ± 8.78 years) had recurrent angina in the first postoperative year after CABG and were specified as group I (early recurrence). Group II (late recurrence) comprised 82 patients (58.05 ± 8.95 years) with angina after the first year of CABG. RESULTS: The mean preoperative left ventricular ejection fraction was 53.22 ± 8.87% in group I, and 54.7 ± 8.58% in group II (P=0.38). No significant difference was registered between groups I and II regarding preoperative angiographic findings (P>0.05). Failed grafts were found in 27.7% (n=28/101) of the grafts in group I as compared to 26.8% (n=51/190) in group II (P>0.05). Twenty-four (53.3%) patients were treated medically in group I, compared with 54 (65.8%) patients in group II (P=0.098). There was a need for intervention in 46.6% (n=21) of group I patients, and in 34.1% (n=28) of group II patients. CONCLUSION: Recurrent angina is a complaint that should not be neglected because most of the patients with recurrent angina are diagnosed with either native coronary or graft pathology in coronary angiography performed.
Assuntos
Angina Pectoris , Ponte de Artéria Coronária , Recidiva , Humanos , Ponte de Artéria Coronária/efeitos adversos , Pessoa de Meia-Idade , Masculino , Feminino , Angina Pectoris/etiologia , Angina Pectoris/cirurgia , Idoso , Estudos Retrospectivos , Angiografia Coronária , Complicações Pós-Operatórias/etiologia , Intervenção Coronária Percutânea , Resultado do Tratamento , Fatores de Tempo , Volume Sistólico/fisiologiaRESUMO
ABSTRACT Introduction: In this study, we aimed to evaluate the most common causes of recurrent angina after coronary artery bypass grafting (CABG) and our treatment approaches applied in these patients. Methods: We included all patients who underwent CABG, with or without percutaneous coronary intervention after CABG, at our hospital from September 2013 to December 2019. Patients were divided into two groups according to the time of onset of anginal pain after CABG. Forty-five patients (58.16 ± 8.78 years) had recurrent angina in the first postoperative year after CABG and were specified as group I (early recurrence). Group II (late recurrence) comprised 82 patients (58.05 ± 8.95 years) with angina after the first year of CABG. Results: The mean preoperative left ventricular ejection fraction was 53.22 ± 8.87% in group I, and 54.7 ± 8.58% in group II (P=0.38). No significant difference was registered between groups I and II regarding preoperative angiographic findings (P>0.05). Failed grafts were found in 27.7% (n=28/101) of the grafts in group I as compared to 26.8% (n=51/190) in group II (P>0.05). Twenty-four (53.3%) patients were treated medically in group I, compared with 54 (65.8%) patients in group II (P=0.098). There was a need for intervention in 46.6% (n=21) of group I patients, and in 34.1% (n=28) of group II patients. Conclusion: Recurrent angina is a complaint that should not be neglected because most of the patients with recurrent angina are diagnosed with either native coronary or graft pathology in coronary angiography performed.
RESUMO
OBJETIVO: Avaliar a prevalência de estenose hemodinamicamente significativa na revascularização infrainguinal realizada com a veia safena magna reversa. MÉTODOS: No período compreendido entre março de 2008 e março de 2009, foram realizadas 56 revascularizações infrainguinais com a veia safena magna reversa em 56 pacientes, dos quais 32 foram avaliados com ultrassonografia vascular no 30º dia de pós- operatório. Foi analisada a prevalência de estenoses significativas nos enxertos e sua relação com as características clínico-cirúrgicas dos pacientes. Os parâmetros avaliados foram a localização das estenoses ao longo do enxerto, fatores de risco associados e a relação existente entre a ultrassonografia vascular e o índice tornozelo-braço no diagnóstico de estenoses. RESULTADOS: Houve prevalência de 48,4 por cento de estenoses significativas nos enxertos avaliados, com 19,4 por cento de estenoses graves e 29 por cento de estenoses leve a moderada. Não foram encontradas associações significativas entre sexo, diabetes mellitus, hipertensão arterial, hipercolesterolemia, diâmetro do enxerto, localização da anastomose distal, composição do enxerto e a constatação de estenoses significativas. Observou-se fraca correlação entre os métodos no diagnóstico das estenoses em geral (K = 0,30; IC95 por cento 0,232-0,473; p = 0,018), mas razoável concordância no diagnóstico das estenoses graves (K = 0,75; IC95 por cento 0,655-0,811; p = 0,0001). CONCLUSÃO: Este estudo demonstrou elevada prevalência de estenoses no 30º dia do pós-operatório, com localização predominante na metade proximal do enxerto. O índice tornozelo-braço e a ultrassonografia vascular apresentaram concordância, sobretudo no diagnóstico das estenoses graves, mas o índice tornozelo-braço, isoladamente, mostrou-se insuficiente na vigilância dos enxertos de veia safena magna reversa.
OBJECTIVE: The aim of this study was to evaluate the prevalence of hemodynamically significant infrainguinal bypasses stenosis using reverse great saphenous vein graft. METHODS: From March of 2008 to March of 2009, 56 infrainguinal bypasses were performed with reverse great saphenous vein graft in 56 patients. On the 30th post-operative day, 32 out of 56 patients were submitted to vascular ultrasonography. The prevalence of significant graft stenosis was determined. In addition, the diagnosis of stenosis was related to the clinical and surgical characteristics of the patients. The variables analyzed at the moment of diagnosis were the localization of the graft stenosis, the risk factors associated with stenosis and the association of vascular ultrasonography findings with ankle brachial pressure index (ABI). RESULTS: The overall prevalence of significant graft stenosis was 48.4 percent. Out of the total number of observed stenosis, 19.4 percent were considered severe, and 29 percent mild or moderate. There was no significant association between the presence of significant stenosis and the following variables: gender, diabetes, hypertension, smoking, hipercholesterolemia, graft diameter, site of the distal anastomosis, and graft composition. There was a weak agreement between ABI and vascular ultrasonography in detecting stenosis in general (K = 0.30; CL95 percent 0.232 - 0.473; p = 0.018). However, there was a substantial agreement in detecting severe stenosis (K = 0.75; CL95 percent 0.655 - 0.811; p = 0.0001). CONCLUSION: There was a high prevalence of stenosis on the 30th post-operative day, mostly localized in the proximal half of the vein graft. There was no significant association of stenosis with clinical and surgical factors analyzed. ABI and vascular ultrasonography had weak agreement with the diagnosis of stenosis in general and an important agreement for the diagnosis of severe stenosis.