Differences in mechanisms and outcomes of syncope in patients with coronary disease or idiopathic left ventricular dysfunction as assessed by electrophysiologic testing
Béatrice Brembilla-Perrot, MD*,*,
Christine Suty-Selton, MD*,
Daniel Beurrier, MD*,
Pierre Houriez, MD*,
Marc Nippert, MD*,
Arnaud Terrier de la Chaise, MD*,
Pierre Louis, MD*,
Olivier Claudon, MD*,
Marius Andronache, MD*,
Ahmed Abdelaah, MD*,
Nicolas Sadoul, MD* and
Yves Juillière, MD*
* Department of Cardiology, CHU of Brabois, Vandoeuvre Les Nancy, France
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Figure 1 General Kaplan-Meier survival curves for groups I (1) and II (2) (p = NS).
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Figure 2 Kaplan-Meier survival curves for group I patients according to the results of programmed ventricular stimulation (VS) (p < 0.0009) (upper line = patients with a negative study; lower line = patients with induced ventricular tachycardia [VT] and ventricular fibrillation [VF]).
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Figure 3 Kaplan-Meier survival curves according to the results of programmed ventricular stimulation (VS) in group I (log-rank 13.92, p < 0.0009) (upper line = patients with a negative study; middle line = patients with induced ventricular fibrillation [VF]; lower line = patients with induced ventricular tachycardia [VT]).
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Figure 4 Kaplan-Meier survival curves according to the results of programmed ventricular stimulation (VS) in group II (NS, p < 0.10) (upper line = patients with a negative study; lower line = patients with induced ventricular tachycardia [VT] and ventricular fibrillation [VF]).
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Figure 5 Kaplan-Meier survival curves for group II patients according to the results of programmed ventricular stimulation (VS) (p < 0.0038) (upper lines = negative study and inducible ventricular tachycardia [VT]; lower line = inducible ventricular fibrillation [VF]).
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