cirurgia de revascularização miocárdica na fase aguda do infarto: análise dos fatores preditores de mortalidade intra-hospitalar coronary artery bypass grafting in acute myocardial infarction: analysis of predictors of in-hospital mortality

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ID: 235602
2012
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Abstract
OBJETIVO: A cirurgia de revascularização miocárdica (CRM) na fase aguda do infarto do miocárdio (IAM) está associada a aumento do risco operatório. O objetivo do estudo foi determinar fatores preditores de mortalidade intra-hospitalar nos pacientes submetidos a CRM no IAM. MÉTODOS: Durante três anos, todos os pacientes submetidos a CRM no IAM foram analisados retrospectivamente, utilizando o banco de dados institucional. Sessenta variáveis por paciente foram avaliadas: 49 variáveis pré-operatórias provenientes dos escores 2000 Bernstein-Parsonnet e EuroSCORE; 4 variáveis pré-operatórias não consideradas por esses escores (tempo entre o IAM e a CRM, valor máximo de CKMB, valor máximo de troponina e supradesnivelamento do segmento ST) e 7 variáveis intraoperatórias [uso de circulação extracorpórea (CEC), tempo de CEC, tipo de cardioplegia, endarterectomia, número de enxertos, uso da artéria torácica interna e revascularização completa]. Análise univariada e multivariada para o desfecho mortalidade intra-hospitalar foram realizadas. RESULTADOS: O tempo médio entre o IAM e a CRM foi de 3,8 ± 3 dias. A mortalidade global foi 19%. Na análise multivariada: idade > 65 anos [OR 16,5 (IC 1,8-152), P=0,013]~˜ CEC >108 minutos [OR 40 (IC 2,7-578), P=0,007], creatinina > 2 mg/dl [OR 35,5 (IC 1,7-740), P=0,021] e pressão pulmonar sistólica > 60 mmHg [OR 31(IC 1,6-591), P=0,022] foram preditores de mortalidade intra-hospitalar. CONCLUSÃO: Variáveis pré-operatórias clássicas como idade > 65 anos, creatinina > 2 mg/dl e pressão pulmonar sistólica > 60 mmHg foram preditoras de mortalidade intra-hospitalar nos pacientes operados de revascularização miocárdica na fase aguda do infarto.
OBJECTIVE: Coronary artery bypass grafting (CABG) during the acute phase of infarction (AMI) is associated with increased operative risk. The aim of this study was to determine predictors of in-hospital mortality in patients undergoing CABG in AMI. METHODS: During three years, all patients undergoing CABG in AMI were retrospectively analyzed of the institutional database. Sixty variables per patient were evaluated: 49 preoperative variables from the 2000 Bernstein-Parsonnet and EuroSCORE models, 4 preoperative variables not considered in these models (time between AMI and CABG, maximum CKMB, Troponin maximum and ST-segment elevation) and 7 intraoperative variables [(cardiopulmonary bypass (CPB), CPB time, type of cardioplegia, endarterectomy, number of grafts, use of internal thoracic artery and complete revascularization]. Univariate and multivariate analysis for the outcome of in hospital mortality were performed. RESULTS: The mean time between AMI and CABG was 3.8 ± 3 days. The overall mortality was 19%. In the multivariate analysis: age > 65 years OR [16.5 (CI 1.8 to 152), P= 0.013]; CPB > 108 minutes [OR 40 (CI 2.7 to 578), P= 0.007], creatinine> 2 mg/dl [OR 35.5 (CI 1.7 to 740), P= 0.021] and systolic pulmonary pressure > 60 mmHg [OR 31 (CI 1.6 to 591), P= 0.022] were predictors of in-hospital mortality. CONCLUSION: Conventional preoperative variables such as age > 65 years, creatinine > 2 mg/dl and systolic pulmonary pressure > 60 mmHg were predictive of inhospital mortality in patients underwent CABG in AMI.
Reference Key
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Authors ;Omar Asdrúbal Vilca Mejía;Luiz A Ferreira Lisboa;Marcos Gradim Tiveron;José Augusto Duncan Santiago;Rafael Angelo Tineli;Luis Alberto Oliveira Dallan;Fabio Biscegli Jatene;Noedir Antonio Groppo Stolf
Journal 2017 international conference on information technology systems and innovation, icitsi 2017 - proceedings
Year 2012
DOI
10.5935/1678-9741.20120011
URL
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-76382012000100011
Keywords
Risk factors myocardial infarction coronary artery bypasssurgerydiseases of the circulatory (cardiovascular) system fatores de risco

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