Personne : Deblois, Jonathan
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Deblois
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Jonathan
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Faculté de médecine, Université Laval
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ncf11893399
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Publication Restreint A simple Doppler echocardiography method to evaluate pulmonary capillary wedge pressure in patients with atrial fibrillation(Wiley-Blackwell Publishing, 2007-08-22) O'Connor, Kim; Deblois, Jonathan; Sénéchal, Mario; Magne, Julien; Bergeron, Sébastien; Poirier, Paul; Pibarot, Philippe; Dumesnil, Jean G.OBJECTIVE: The accuracy of E/E' ratio has not been validated in atrial fibrillation (AF). The objective of this study is to compare the accuracy of the E/E' ratio averaged over a sample of 10 cardiac cycles and E/E' ratio obtained in the cycle with the longest RR interval for the estimation of wedge pressure in patients with AF using a simultaneous pulmonary artery occlusive pressure measured with a Swan-Ganz catheter. DESIGN: Twenty-four consecutive patients with AF with a Swan-Ganz catheter were recruited in this study. The majority of patients (92%) were in the early postoperative phase of cardiac surgery. RESULTS: The best sensitivity and specificity was reached with E/E' ratio in the medial position using the one-beat method; E/E' ratio > or = 16 with one beat predicts a wedge pressure >15 mmHg with a sensitivity and specificity of 91% and 85%, respectively. CONCLUSIONS: Measuring E/E' ratio using the one-beat method is a simple and clinically accurate way to estimate wedge pressure in patients with AF.