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J Int Med Res ; 46(11): 4518-4526, 2018 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-30185093

RESUMO

OBJECTIVE: Catheter ablation of atrial fibrillation (AF) can lead to thromboembolic complications, especially stroke. We measured the periprocedural serum neuron-specific enolase (NSE) level, which is a biomarker of neuronal injury, after ablation of AF. METHODS: Forty-three patients with paroxysmal AF were prospectively enrolled before radiofrequency ablation. A neurological examination was performed before and after the procedure. The serum NSE level was determined before and at the end of the procedure and at 2, 24, and 48 h after the procedure. RESULTS: No patients developed new neurological deficits. However, the median (interquartile range) NSE level increased after ablation from 6.7 (3.87) ng/mL at baseline to 11.48 (5.3) ng/mL at 24 h postoperatively. The NSE level exceed the upper reference limit of normal (17 ng/mL) in 14 patients (33%), and these patients were found to have a larger left atrium. CONCLUSIONS: Serum NSE increased in most of the patients undergoing ablation for AF, and it exceeded the normal limit in one-third of the patients. Although NSE is a biomarker of neuronal injury, the clinical importance of this increase after AF ablation and its relationship with the left atrial diameter should be evaluated in a longitudinal study.


Assuntos
Fibrilação Atrial/sangue , Fibrilação Atrial/cirurgia , Ablação por Cateter , Neurônios/patologia , Fosfopiruvato Hidratase/sangue , Fibrilação Atrial/diagnóstico por imagem , Biomarcadores/sangue , Eletrocardiografia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade
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