Journal of the American College of Cardiology
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J. Am. Coll. Cardiol. · Feb 1999
Comparative StudyFavorable effects of flecainide in transvenous internal cardioversion of atrial fibrillation.
The aim of the study was to evaluate the effects of intravenous (IV) flecainide on defibrillation energy requirements in patients treated with low-energy internal atrial cardioversion. ⋯ Intravenous flecainide reduces atrial defibrillation threshold in patients treated with low-energy internal atrial cardioversion. This reduction in threshold results in lower shock-induced discomfort. Additionally, flecainide may increase the procedure success rate in patients with chronic persistent atrial fibrillation.
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J. Am. Coll. Cardiol. · Feb 1999
Comparative StudyAbility of troponins to predict adverse outcomes in patients with renal insufficiency and suspected acute coronary syndromes: a case-matched study.
The purpose of this study was to investigate the utility of cardiac troponin T and troponin I for predicting outcomes in patients presenting with suspected acute coronary syndromes and renal insufficiency relative to that observed in similar patients without renal disease. ⋯ The ability of cardiac troponin T and troponin I to predict risk for subsequent adverse outcomes in patients presenting with suspected acute coronary syndromes is reduced in the presence of renal insufficiency.
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J. Am. Coll. Cardiol. · Feb 1999
Practice Guideline Comparative Study GuidelineEchocardiography in emergency medicine: a policy statement by the American Society of Echocardiography and the American College of Cardiology. Task Force on Echocardiography in Emergency Medicine of the American Society of Echocardiography and the Echocardiography and Technology and Practice Executive Committees of the American College of Cardiology.
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J. Am. Coll. Cardiol. · Feb 1999
Randomized Controlled Trial Comparative Study Clinical TrialA prospective randomized trial of prevention measures in patients at high risk for contrast nephropathy: results of the P.R.I.N.C.E. Study. Prevention of Radiocontrast Induced Nephropathy Clinical Evaluation.
This study was done to test the hypothesis that a forced diuresis with maintenance of intravascular volume after contrast exposure would reduce the rate of contrast-induced renal injury. ⋯ Forced diuresis with intravenous crystalloid, furosemide, and mannitol if hemodynamics permit, beginning at the start of angiography provides a modest benefit against contrast-induced nephropathy provided a high urine flow rate can be achieved.
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J. Am. Coll. Cardiol. · Feb 1999
Randomized Controlled Trial Comparative Study Clinical TrialNonexercise stress transthoracic echocardiography: transesophageal atrial pacing versus dobutamine stress.
To compare transesophageal atrial pacing stress echocardiography with dobutamine stress echocardiography for feasibility, safety, duration, patient acceptance and concordance in inducing wall motion abnormalities. ⋯ Transesophageal atrial pacing stress echocardiography is a feasible, well-tolerated alternative to dobutamine stress echocardiography. It can be performed rapidly and shows good agreement with dobutamine stress echocardiography in the induction of myocardial ischemia.