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1.
Gac Med Mex ; 154(3): 315-319, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-30047929

RESUMO

INTRODUCCIÓN: En estudios de medicina nuclear se ha observado que la disminución de la fracción de expulsión del ventrículo izquierdo (FEVI) se asocia con enfermedad coronaria trivascular; en resonancia magnética cardiaca (RMC) no se ha estudiado el papel que desempeña la disminución de la FEVI. OBJETIVO: Evaluar la asociación entre la disminución de la FEVI y la isquemia cardiaca en pacientes con estudios de RMC con adenosina. MÉTODO: Estudio transversal comparativo. Los criterios de inclusión fueron pacientes evaluados con RMC con adenosina entre enero de 2009 y junio de 2015. Se comparó el cambio en la FEVI en pacientes con estudio positivo versus pacientes con estudio negativo para isquemia por este método. RESULTADOS: Se incluyeron 59 pacientes: 41 del sexo masculino (70 %), edad de 59.7 ± 10.9 años; 38 % de los estudios fueron positivos para isquemia. La delta de la FEVI (FEVI postestrés - FEVI reposo) fue de -0.16 ± 5.9 versus 5.3 ± 4.7 (p<0.001) en pacientes con y sin isquemia, respectivamente. CONCLUSIÓN: Los pacientes con estudios positivos para isquemia tuvieron menor delta FEVI que los que tuvieron estudios negativos para isquemia. BACKGROUND: The decrease in left ventricular ejection fraction (LVEF) has been observed to be associated with three-vessel coronary disease in nuclear medicine studies; however, the role played by LVEF decrease has not been studied with cardiovascular magnetic resonance (CMR). OBJECTIVE: To assess the association between LVEF decrease and cardiac ischemia in patients with CMR studies with adenosine. METHOD: Cross-sectional, comparative study. Inclusion criteria were: patients assessed with CMR with adenosine between January 2009 and June 2015. LVEF change was compared between patients testing positive for ischemia versus those who tested negative. RESULTS: Fifty nine patients were included: 41 were males (70%), mean age was 59.7 ± 10.9 years; 38% of the studies tested positive for ischemia. Delta LVEF (post-stress LVEF ­ resting LVEF) was ­0.16 ± 5.9 versus 5.3 ± 4.7 (p < 0.001) in patients with and without ischemia, respectively. CONCLUSION: Patients who tested positive for ischemia had lower delta LVEF than those with negative studies for ischemia.


Assuntos
Adenosina , Teste de Esforço , Imageamento por Ressonância Magnética , Isquemia Miocárdica/diagnóstico , Isquemia Miocárdica/fisiopatologia , Volume Sistólico , Estudos Transversais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Valor Preditivo dos Testes
2.
Arch. cardiol. Méx ; Arch. cardiol. Méx;86(3): 203-207, jul.-sep. 2016. tab, graf
Artigo em Inglês | LILACS | ID: biblio-838376

RESUMO

Abstract Objective Identify risk factors that determine pneumonia development in patients who have undergone cardiac surgery. Methods Prospective study of a single cohort in a postoperative intensive care unit at a tertiary care center, encompassing all patients undergoing cardiac surgery from January to July 2014. Results 31 postoperative pneumonia cases were enrolled out of 211 patients (14.6%). The following independent risk factors were identified: hypertension (OR: 3.94, p = 0.01), chronic renal failure (OR: 13.67, p = 0.02), reintubation (OR: 22.29, p = 0.001) and extubation after 6 h (OR: 15.81, p = 0.005). Conclusions Main determinants for pneumonia after surgery were hypertension, chronic renal failure, extubation after 6 h and reintubation.


Resumen Objetivo Identificar los factores de riesgo para desarrollar neumonía en el periodo postquirúrgico de pacientes sometidos a cirugía cardiaca. Método Estudio de cohorte prospectiva que incluye pacientes > 18 años sometidos a cirugía cardiaca de enero a julio de 2014, en el Instituto Nacional de Cardiología Ignacio Chávez, México D.F. Se considera un valor de p < 0.05 como significativo. Resultados De un total de 211 pacientes operados, se diagnosticaron 31 casos de neumonía postquirúrgica (14.6%). Se identificaron los siguientes factores de riesgo independientes para desarrollar neumonía: la hipertensión arterial sistémica (OR: 3.94, p = 0.01), el antecedente de insuficiencia renal crónica (OR: 13.67, p = 0.02). La reintubación (OR: 22.29, p = 0.001) y permanecer intubado por más de 6 horas (OR: 15.81, p = 0.005). Conclusiones Los principales factores de riesgo independientes para desarrollar neumonía en el periodo postquirúrgico son la preexistencia de hipertensión arterial sistémica o insuficiencia renal crónica, la reintubación y permanecer intubado durante más de 6 h.


Assuntos
Humanos , Masculino , Feminino , Adulto , Pessoa de Meia-Idade , Idoso , Complicações Pós-Operatórias/epidemiologia , Pneumonia Bacteriana/epidemiologia , Procedimentos Cirúrgicos Cardíacos , Estudos Prospectivos , Fatores de Risco , Estudos de Coortes
3.
Arch Cardiol Mex ; 86(3): 203-7, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-26949195

RESUMO

OBJECTIVE: Identify risk factors that determine pneumonia development in patients who have undergone cardiac surgery. METHODS: Prospective study of a single cohort in a postoperative intensive care unit at a tertiary care center, encompassing all patients undergoing cardiac surgery from January to July 2014. RESULTS: 31 postoperative pneumonia cases were enrolled out of 211 patients (14.6%). The following independent risk factors were identified: hypertension (OR: 3.94, p=0.01), chronic renal failure (OR: 13.67, p=0.02), reintubation (OR: 22.29, p=0.001) and extubation after 6h (OR: 15.81, p=0.005). CONCLUSIONS: Main determinants for pneumonia after surgery were hypertension, chronic renal failure, extubation after 6h and reintubation.


Assuntos
Procedimentos Cirúrgicos Cardíacos , Pneumonia Bacteriana/epidemiologia , Complicações Pós-Operatórias/epidemiologia , Adulto , Idoso , Estudos de Coortes , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Fatores de Risco
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