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Transplant Proc ; 43(6): 2249-50, 2011.
Artigo em Inglês | MEDLINE | ID: mdl-21839247

RESUMO

OBJECTIVES: High levels of lactate are associated with tissue hypoperfusion during cardiac surgery resulting in postoperative morbidity and mortality among patients undergoing cardiopulmonary bypass (CBP). Our goal was to evaluate the change in lactate levels during CBP for their possible predictive value for complications after heart transplant surgery. MATERIALS AND METHODS: From January to December 2010 we studied lactate levels in 16 heart transplant patients. Arterial blood samples were collected before, during, and after cardiopulmonary bypass on admission to the intensive care unit (ICU). Lactate levels were measured using the cobas B221 (Roche Diagnostic). The neurological, lung, and kidney complications were associated with mortality within 30 days. RESULTS: One patient displayed lactate levels > 2 mmol/L before bypass while 4 (25%) showed levels > 4 mmol/L during CPB. Lactate values higher than or equal to 4 mmol/L on ICU admission occurred in nine patients (56%). Postoperative mortality was higher among the group with levels above below 4 mmol/L on ICU admission (18.7% vs 6.2%). Neurological complications were observed in 22% of patients with elevated levels as opposed to none of the patients with levels below 4 mmol/L. Pulmonary complications were noted in 22% of patients with high lactate values versus 0% among the other group. CONCLUSION: Hyperlactemia above certain levels occurring during CPB serve as a biomarker to identify early postoperative morbidity and mortality.


Assuntos
Ponte Cardiopulmonar/efeitos adversos , Transplante de Coração/efeitos adversos , Ácido Láctico/sangue , Complicações Pós-Operatórias/sangue , Biomarcadores/sangue , Ponte Cardiopulmonar/mortalidade , Transplante de Coração/mortalidade , Mortalidade Hospitalar , Humanos , Complicações Pós-Operatórias/etiologia , Complicações Pós-Operatórias/mortalidade , Valor Preditivo dos Testes , Espanha , Fatores de Tempo , Resultado do Tratamento , Regulação para Cima
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