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Filename: Session/Session.php
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CONTEXTE: La fibrillation auriculaire est l’une des complications les plus fréquentes et un risque majeur de morbidité et de mortalité après une chirurgie cardiaque. Des antioxydants tels que la vitamine C sont utilisés pour prévenir cette arythmie. Différents résultats d'études ont été rapportés, mais la plupart d'entre eux ont montré l'efficacité de la vitamine C dans la prophylaxie de la FA postopératoire. Nous avons essayé d'examiner cette efficacité avec une taille d'échantillon plus grande. MÉTHODES: Trois cent quatorze sur pontage de l'artère coronaire à la pompe, greffe seule. Les patients ont été divisés en deux groupes: le groupe d'intervention a reçu de la vitamine C (N = 160) et le groupe témoin n'en a reçu aucune (N = 154). Le groupe d'intervention a reçu deux grammes de vitamine C par voie intraveineuse (IV) 24 heures avant l'opération, 500 mg toutes les 12 heures par voie intraveineuse pendant 48 heures en unité de soins intensifs et 500 mg toutes les 12 heures par voie orale pendant 48 heures en salle. Une surveillance continue en réanimation et trois fois par jour un ECG a été utilisée pour la détection de la FA. Les deux groupes ont été comparés. RÉSULTATS: Les deux groupes ont été appariés en termes d'âge, de sexe, de taille de l'AL, de fraction d'éjection, de classe fonctionnelle et de niveau de TSH. Parmi les patients, 244 étaient des hommes. L'âge moyen était de 62 ans (40-84 ans) dans les deux groupes. Le ratio M / F était de quatre dans les deux groupes. La classe fonctionnelle et la fraction d'éjection étaient les mêmes dans les deux groupes. Il n'y avait pas de différence moyenne de niveau de TSH. La fréquence de FA dans le groupe vitamine C était de 7,6% et dans le groupe témoin de 7,8%. Il n'y avait pas de différence en USI ou en séjour à l'hôpital. CONCLUSIONS: L'utilisation prophylactique de la vitamine C ne réduit pas davantage la fibrillation auriculaire postopératoire chez les patients sous pontage à la pompe.
Source: https://www.ncbi.nlm.nih.gov/pubmed/30311896