The study population consisted of 17 men and five women. The mean age at the time of the first ablation was 38±14 years (mean±SD), range 20 to 70 (Fig. 19.1). The mean left ventricular ejection fraction (LVEF) was 59±10%. It was below 45% in two patients (Fig. 19.2).
Two patients who had an implantable defibrilla-tor had ablation for the treatment of frequent and poorly tolerated episodes of VT. Four patients had incessant VT at the time of the first ablation. One patient had previous antiarrhythmic surgery performed at La Salpêtrière hospital, 23 years before the first ablation procedure.
25 3D 35 10 45 SO 55 60 65 70 75 Left Ventricular Ejection Fraction
Fig. 19.2 • Left ventricular ejection fraction at the time of first ablation. Note the bimodal distribution with two cases below 45% (p<0.05)
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