Journal of the American College of Cardiology
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J. Am. Coll. Cardiol. · Jun 2002
Randomized Controlled Trial Multicenter Study Comparative Study Clinical TrialBiphasic versus monophasic shock waveform for conversion of atrial fibrillation: the results of an international randomized, double-blind multicenter trial.
This study compared a biphasic waveform with a conventional monophasic waveform for cardioversion of atrial fibrillation (AF). ⋯ For the cardioversion of AF, a biphasic shock waveform has greater efficacy, requires fewer shocks and lower delivered energy, and results in less dermal injury than a monophasic shock waveform.
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J. Am. Coll. Cardiol. · May 2002
Randomized Controlled Trial Multicenter Study Clinical TrialEffects of beraprost sodium, an oral prostacyclin analogue, in patients with pulmonary arterial hypertension: a randomized, double-blind, placebo-controlled trial.
The purpose of this study was to assess the efficacy and safety of beraprost sodium, an orally active prostacyclin analogue, in New York Heart Association (NYHA) functional class II and III patients with pulmonary arterial hypertension (PAH). ⋯ Beraprost improves exercise capacity and symptoms in NYHA functional class II and III patients with PAH and, in particular, in those with primary pulmonary hypertension.
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J. Am. Coll. Cardiol. · May 2002
Clinical Trial Controlled Clinical TrialEmbolic events in patients with atrial fibrillation and effective anticoagulation: value of transesophageal echocardiography to guide direct-current cardioversion. Final results of the Ludwigshafen Observational Cardioversion Study.
The primary objective was to evaluate the usefulness of transesophageal echocardiography (TEE)-guided cardioversion to prevent thromboembolic complications in patients with atrial fibrillation (AF) and effective anticoagulation (International Normalized Ratio of 2 or 3) at least three weeks before cardioversion. ⋯ There were no differences in the rate of embolic events between the two treatment groups. In patients with AF and effective anticoagulation, TEE-guided electrical cardioversion does not reduce the embolic risk. However, TEE revealed left atrial thrombi in 7.7% of patients with AF and effective anticoagulation, before direct-current cardioversion.
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J. Am. Coll. Cardiol. · May 2002
Multicenter Study Clinical TrialClinical value of left atrial appendage flow for prediction of long-term sinus rhythm maintenance in patients with nonvalvular atrial fibrillation.
This study evaluated the role of various clinical and echocardiographic parameters, including the left atrial appendage (LAA) anterograde flow velocity, for prediction of the long-term preservation of sinus rhythm (SR) in patients with successful cardioversion (CV) of nonvalvular atrial fibrillation (AF). ⋯ In TEE-guided management of nonvalvular AF, high LAA flow velocity identifies patients with greater likelihood to remain in SR for one year after successful CV. Low LAA velocity is of limited value in identifying patients who will relapse into AF.
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J. Am. Coll. Cardiol. · May 2002
Comparative StudyA comparison of cardiac troponin T and creatine kinase-MB for patient evaluation after cardiac surgery.
The aim of this study was to assess the role of serum markers of myocardial necrosis after cardiac surgery. ⋯ Troponin T is superior to CK-MB for the prediction of impending complications after cardiac surgical procedures.